Your Incredible Fire Alarm PCB Manufacturer in China
If you need a professional fire alarm manufacturer, you can go to PCBMay, where we will 100% support you. We can also offer tailor-made fire alarm PCB.
- Fire alarm PCB advanced manufacturing system
- Exported products to 1000+ global customers
- All products distributed under strict quality control
- No MOQ required
Fire Alarm PCB is Your Top Choice for Your Project
PCBMay is the leading reliable fire alarm PCB supplier and manufacturer in China. We are supplying complete fire alarm PCB layout, designs, assembly, and customization services. Being the ISO9001 certificated factory, we can manufacture fire alarm PCB exceeding your satisfaction. Along with our skilled and experienced team, PCBMay can provide timely fire alarm PCB solutions.
Please place your orders today and experience a more progressive business.
Types of Fire Alarm PCB Meet Your Requirements
PCBMay addressable fire alarm system PCB are essential device. This is useful in preventing property damage and detecting fire at the right time.
Functional in detecting fire and activates the buzzer or siren sound. PCBmay can customize the fire alarm PCB circuit according to your requirements.
Useful in general electrical purposes, especially in LED light. Feature easy installation and maintenance. Manufactured under a strict quality control system.
Our PCB for fire heat sensor offers reliable and stable performance. They are user-friendly and have a solid anti-interference design.
The PCB-SMT fire alarm control panel complies with international safety standards, like UL, CE, and ROHS. Before shipment, we perform 100% stability and functional testing.
We manufacture smoke detector fire alarm PCB with several advantages and features. Easy installation and easy to use are included product’s advantages.
Why Choose PCBMay for Your Fire Alarm PCB
PCBMay is a professional manufacturer earning 12 years of total experience in the PCB industry. We can design and originate fire alarm PCB solutions to reach the market requirements and exceeds your expectation. More than 1000 clients worldwide are already satisfied and happy about our services and products. If you need an OEM fire alarm PCB, PCBMay is capable of providing them.
We are confident to provide all your requirements. PCBMay is a company composed of skilled engineers. We also carefully inspect each fire alarm PCB before the delivery. We will do our very best to skyrocket your business.
Related Fire Alarm PCB Boards
Fire Alarm PCB Production Details As Following Up
- Production Facility
- PCB Capabilities
- PCB Materials
- Shipping Methods
- Payment Methods
- Send Us Inquiry
| Item | Capability |
| Layer Count | 1-40layers |
| Base Material | KB、Shengyi、ShengyiSF305、FR408、FR408HR、IS410、FR406、GETEK、370HR、IT180A、Rogers4350B、Rogers4000、PTFE Laminates(Rogers series、Taconic series、Arlon series、Nelco series)、Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4) |
| Board Type | Backplane、HDI、High multi-layer 、blind&buried PCB、Embedded Capacitance、Embedded resistance board 、Heavy copper power PCB、Backdrill. |
| Board Thickness | 0.2-5.0mm |
| Copper Thickness | Min. 1/2 OZ, Max. 10 OZ |
| PTH Wall | 25um(1mil) |
| Maximum Board Size | 1100*500mm(43”*19”) |
| Min laser drilling size | 4mil |
| Min. Spacing/Tracing | 2.7mil/2.7mil |
| Solder Mask | Green, Black, Blue, Red, White, Yellow,Purple matte/glossy |
| Surface Treatment | Flash gold(electroplated gold)、ENIG、Hard gold、Flash gold、HASL Lead free、OSP、ENEPIG、Soft gold、Immersion silver、Immersion Tin、ENIG+OSP,ENIG+Gold finger,Flash gold(electroplated gold)+Gold finger,Immersion silver+Gold finger,Immersion Tin+Gold finger. |
| Min. Annular Ring | 3mil |
| Aspect ratio | 10:1(HASL Lead free、HASL Lead、ENIG、Immersion Tin、Immersion silver、ENEPIG);8:1(OSP) |
| Impedance control | ±5ohm(＜50ohm), ±10%(≥50ohm) |
| Other Techniques | Blind/Buried Via |
| Gold Fingers | |
| Press Fit | |
| Via in Pad | |
| Electrical Test |
Here there’re many laminate material datasheets, they’re useful and helpful for you, please see them:
| SUPPLIER | PCB LAMINATE | TYPE | MATERIAL DATASHEET | TG | TD | DK(1MHZ) | DK(1GHZ) | DK(10GHZ) |
| KB | KB-6160 | FR4 | DOWNLOAD | 135 | 305 | 4.35 | – | – |
| KB-6160A | FR4 | DOWNLOAD | 135 | 305 | 4.35 | – | – | |
| KB-6160C | FR4 | DOWNLOAD | 135 | 314 | 4.7 | – | – | |
| KB-6150 KB-6150C | FR4 | DOWNLOAD | 132 | 305 | 4.6 | – | – | |
| KB-6164 | FR4 | DOWNLOAD | 142 | 330 | 4.8 | – | – | |
| KB-6164F | FR4 | DOWNLOAD | 145 | 340 | 4.8 | – | – | |
| KB-6165F | FR4 | DOWNLOAD | 150 | 346 | 4.8 | – | – | |
| KB-6167F | FR4 | DOWNLOAD | 170 | 349 | 4.8 | – | – | |
| SHENGYI | S1141 | FR4 | DOWNLOAD | 135 | 310 | 4.6 | – | – |
| S1141KF | FR4 | DOWNLOAD | 140 | 350 | 4.7 | – | – | |
| S1000 | FR4 | DOWNLOAD | 155 | 335 | 4.9 | – | – | |
| S1170 | FR4 | DOWNLOAD | 170 | 335 | 4.6 | – | – | |
| S1000-2 | FR4 | DOWNLOAD | 170 | 335 | 4.8 | – | – | |
| S1155 | FR4 | DOWNLOAD | 135 | 370 | 4.7 | – | – | |
| ITEQ | IT-158 | FR4 | DOWNLOAD | 150 | 340 | 4.6-4.8 | – | – |
| IT-180 | FR4 | DOWNLOAD | 180 | 350 | 4.5-4.7 | – | – | |
| TUC | TU-768 | FR4 | DOWNLOAD | 180 | 350 | – | 4.3-4.4 | 4.3 |
| TU-872 | Modified Epoxy | DOWNLOAD | 200 | 340 | – | 3.8-4.0 | 3.8 | |
| ROGERS | RO 3003 | Cer/PTFE | DOWNLOAD | – | 500 | – | – | 3 |
| RO 3010 | Cer/PTFE | DOWNLOAD | – | 500 | – | – | 10.2 | |
| RO 4003 | Hydrocarbon/Cer | DOWNLOAD | >280 | 425 | – | – | 3.38 | |
| RO 4350B | Hydrocarbon/Cer | DOWNLOAD | >280 | 390 | – | – | 3.48 | |
| RT/duroid 5880 | PTFE/Glass | DOWNLOAD | – | 500 | – | – | 2.2 | |
| ISOLA | Polyclad 370HR | FR4 | DOWNLOAD | 170 | 340 | 4.8-5.1 | – | – |
| FR406-HR | FR4 | DOWNLOAD | 190 | 325 | 3.91 | 3.86 | 3.81 | |
| FR408-HR | FR4 | DOWNLOAD | 200 | 360 | 3.72 | 3.69 | 3.65 | |
| P96 | Polyimide | DOWNLOAD | 260 | 416 | – | 3.78 | 3.73 | |
| Hitachi | MCL-BE- 67G | Modified Epoxy | DOWNLOAD | 140 | 340 | 4.9 | 4.4 | – |
| MCL-E-679F | FR4 | DOWNLOAD | 170 | 350 | 4.2-4.4 | 4.3-4.5 | – | |
| MCL-LX-67Y | Special Laminate | DOWNLOAD | 185-195 | 325-345 | – | 3.4-3.6 | – | |
| Nelco | N4000-13 | Modified Epoxy | DOWNLOAD | 210-240 | 365 | – | 3.7 | 3.6 |
| N4000-13EP | Modified Epoxy | DOWNLOAD | 210-240 | 350 | – | 3.4 | 3.2 | |
| N4000-13SI | Modified Epoxy | DOWNLOAD | 210-240 | 350 | – | 3.4 | 3.2 | |
| N4000-13EP SI | Modified Epoxy | DOWNLOAD | 210-240 | 350 | – | 3.4 | 3.2 | |
| Taconic | TLX-6 | PTFE | DOWNLOAD | – | – | – | – | 2.65 |
| TLX-7 | PTFE | DOWNLOAD | – | – | – | – | 2.6 | |
| TLX-8 | PTFE | DOWNLOAD | – | – | – | – | 2.55 | |
| TLX-9 | PTFE | DOWNLOAD | – | – | – | – | 2.45 | |
| RF35 | PTFE | DOWNLOAD | <315 | – | 3.5 | – | 3.5 | |
| TLC-27 | PTFE | DOWNLOAD | – | – | – | – | 2.75 | |
| TLC-30 | PTFE | DOWNLOAD | – | – | – | – | 3 | |
| TLC-32 | PTFE | DOWNLOAD | – | – | – | – | 3.2 | |
| Arlon | Arlon 25N | Cer | DOWNLOAD | 260 | – | – | – | 3.38 |
| Arlon 25FR | Cer | DOWNLOAD | 260 | – | – | – | 3.58 | |
| Arlon 33N | Polymide | DOWNLOAD | >250 | 353 | 4 | – | – | |
| Arlon 35N | Polymide | DOWNLOAD | >250 | 363 | 4.2 | – | – | |
| Arlon 85N | Polymide | DOWNLOAD | 250 | 387 | 4.2 | – | – | |
| Stablcor | ST325 | – | DOWNLOAD | Thermal conductivity:75w/m.k(with 1oz copper) | ||||
| ST10 | – | DOWNLOAD | Thermal conductivity:325w/m.k(with 1oz copper) | |||||
| Panasonic | R-1566W | FR4 | DOWNLOAD | 140 | 330 | 4.95 | 4.7 | 4.65 |
| Ventec | VT-901 | Polymide | DOWNLOAD | 250 | 390 | 4.2-4.5 | 4.0-4.3 | – |
| VT-90H | Polymide | DOWNLOAD | 250 | 390 | 4.2-4.5 | 4.0-4.3 | – | |
| Bergquist | ht-04503 | – | DOWNLOAD | Thermal conductivity:2.2w/m.k(with 1oz copper) | ||||
Delivery
PCBMay offers flexible shipping methods for our customers, you may choose from one of the methods below.
1. DHL
DHL offers international express services in over 220 countries.
DHL partners with PCBMay and offers very competitive rates to customers of PCBMay.
It normally takes 3-7 business days for the package to be delivered around the world.
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It normally takes 3-7 business days to deliver a package to most of the addresses in the world.
3. TNT
TNT has 56,000 employees in 61 countries.
It takes 4-9 business days to deliver the packages to the hands
of our customers.
4. FedEx
FedEx offers delivery solutions for customers around the world.
It takes 4-7 business days to deliver the packages to the hands
of our customers.
5. Air, Sea/Air, and Sea
If your order is of large volume with PCBMay, you can also choose
to ship via air, sea/air combined, and sea when necessary.
Please contact your sales representative for shipping solutions.
Note: if you need others, please contact your sales representative for shipping solutions.
On our website you can use the following payment methods:
Telegraphic Transfer(TT): A telegraphic transfer (TT) is an electronic method of transferring funds utilized primarily for overseas wire transactions. It’s very convenient to transfer.
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Your Best Fire Alarm PCB Supplier
PCBMay is a professional fire alarm PCB manufacturer in China. We are 12 years experienced manufacturer, created fire alarm PCB useful in various circuit board applications. The fire alarm PCB can really detect a fire, smoke, or other tragedies. It can also prevent any property damage or people injuries.
PCBMay fire alarm PCB is a manageable circuit that immediately recognizes smoke or fire and starts off the siren sound. They are essential devices that detect fire at the right time. However, they are used widely in different industries and building sectors.
The fire alarm PCB activates an alarm based on the reaction of smoke and heat detectors for further precautionary measures.
Also involved as a versatile home security system and other security-related parameters, like intruder alert and detectors.
Daily, PCBMay has full capabilities in manufacturing hundreds of fire alarm PCB models. We are using our automated production line on the entire production. Plus! We have the main fire alarm PCB supplying design capacity, so you can always order fire alarm PCB anytime, even in peak seasons.
Whether you’re a fire alarm PCB design custom factory, distributor, or retailer, PCBMay is always your most trusted choice. We can always provide for your needs.
During the past 12 years in the industry, we are devoted to our innovations and excellence in fire alarm PCB production. PCBMay is skillful in exporting our products nationwide. We provide superior units with complete customer support.
PCBMay is the only supplier design that provides high-quality and competitive fire alarm PCB products. We can customize your fire alarm PCB orders according to your requirements.
Being the ISO9001 certificated factory, we can manufacture fire alarm PCB exceeding your expectation. Along with our skilled and experienced team, PCBMay can provide timely fire alarm PCB solutions.
PCBMay is the leading reliable fire alarm PCB supplier and manufacturer in China. We are supplying complete fire alarm PCB layout, designs, assembly, and customization services.
If you need Fire Alarm PCB, contact us!
Fire Alarm PCB: A Complete FAQ Guide
Fire alarm PCB is an essential electronic device in our day-to-day life. Our life would not be as easy as it is without its implication. It protects people from dangerous fire accidents and tragedies.
PCBMay is a professional manufacturing company of fire alarm PCBs in China. We also export our fire alarm PCBs to 60 countries worldwide. We manufacture the best quality durable, functional and advanced fire alarm printed circuit boards.
If you want to learn everything about fire alarm printed circuit boards, this FAQ guide can help you through. It covers all information about the fire alarm circuit board. Check it out.
- What Is Fire Alarm PCB?
- What Are The Types Of Fire Alarm PCB?
- What Are The Fire Alarm PCB Monitoring Systems?
- What Are The Components Of Fire Alarm PCB?
- Why Do We Use Fire Alarm PCB?
- How Does Fire Alarm PCB Work?
- What Are The Applications Of Fire Alarm PCB?
- What Are The Advantages Of Fire Alarm PCB?
- How Do You Design A Fire Alarm PCB?
- What Is The Manufacturing Process Of Fire Alarm PCB?
- How Shall We Produce Fire Alarm PCB Assembly?
- How To Connect A Control Panel To A Fire Alarm PCB?
- How Does The Power Supply System Work In Fire Alarm PCB?
- What Is The Schematic Of Fire Alarm PCB?
- How Does Fire Alarm PCB Use Thermistor?
- How Does Fire Alarm PCB Produce Siren Sound?
- What Is The Signal Circuit In A Fire Alarm PCB?
- What Type Of Surface Finishes Do You Use On A Fire Alarm PCB?
- How Do You Etch Copper From Fire Alarm PCB?
- What Is The Cost Of Fire Alarm PCB?
- How Do You Choose The Right Manufacturer Of Fire Alarm PCB?
What Is Fire Alarm PCB?
Fire alarm PCB is an important device in industries and homes and other places where a fire accident can take place. It is a kind of printed circuit board that is used in a device to detect fire accidents and then alert people.
Fire Alarm PCB
If there is an opportunity for any fire accident, you must use a fire alarm PCB device there. We can prevent a lot of financial loss using this device as well as save numerous people from dangerous fire incidents.
What Are The Types Of Fire Alarm PCB?
There are several types of fire alarm PCBs available. Different types of fire alarm boards are for different purposes. Some main fire alarm PCB types are given below.
● Fire Alarm PCB Circuit
This is the basic type of fire alarm board. It is able to detect the fire instantly and then enables the siren or buzzer. You can customize this board according to your requirements.
● Fire Heat Sensor PCB
This type of printed circuit board has a solid anti-interference design. They are pretty user-friendly as well. The boards provide very stable and reliable performance.
● Smoke Detecting Fire Alarm PCB
These alarm boards detect the smoke as soon as possible and buzz the sound. They are very effective, easy to use, and the installation process is easy. They come with many different features and advantages.
Types Of Fire Alarm PCB
● Addressable Fire Alarm System PCB
This type of printed circuit board is an essential device. To recognize fire at an accurate time and to prevent property damages we use this addressable fire alarm system PCBs.
● PCB-SMT Fire Alarm Control Panel
international safety standards like ROHS, CE, UL, etc are maintained in PCB-SMT Control Panel. These boards are very functional and stable.
● Fire Alarm Sensor PCB
Fire alarm sensor PCBs are mostly used in LED lights and for general electrical purposes. The boards do not need high maintenance and possess an easy installation process.
What Are The Fire Alarm PCB Monitoring Systems?
There are three basic fire alarm PCB monitoring systems: photoelectric, ionization, and combination alarms. Each of them works to detect fire but in different ways. Each of the PCB monitoring types is discussed in the following.
● Photoelectric
Photoelectric fire alarm PCB is good for identifying smoldering fires. smoldering fire, slow flamingos produce different kinds of smoke than a flaming fire. This type of PCB utilizes a beam of light.
The beam of light is transferred into a chamber. If a fire accident, the produced smoke goes into the chamber. The chamber reflects the light towards the sensor and then it triggers the alarm to buzz.
● Ionization
Ionization fire alarm PCB is suitable for identifying fast flaming fires. There is radioactive material inside the alarm board. The material is positioned between two plates that are electronically charged.
As a result between the two plates, there is a constant ionized current. In case of a fire incident, the produced smoke goes between the two plates among the ionized current. Consequently, it breaks the ionized current and sets the alarm off.
● Combination
Combination alarm PCB is the merged version of both the system of photoelectric and ionization fire detecting alarm PCB technologies. As it is a combination PCB technology, it doesn’t work as great as the other two PCB works individually. A single unit of fire alarm boards works more efficiently than the detection method of the combination PCB system.
What Are The Components Of Fire Alarm PCB?
A fire alarm PCB is made of several components. The components vary from one board to another according to the requirement of the application. You can choose the components of your board and customize it, but there are some basic components of a fire alarm printed circuit board which is as follows.
- Capacitor
- Transistor
- Resistor
- Variable resistor
- Thermistor
- Diode
- Speaker
Components Of Fire Alarm PCB
Why Do We Use Fire Alarm PCB?
It is really helpful in detecting smoke, fire, or other incidents. It is very useful in preventing people’s injuries and property damages. The boards are able to detect the fire or smoke instantly and begin the buzzer or siren sound immediately.
It is very necessary to prevent fire occurrences before it spreads out. The fire alarm PCBs can recognize the smoke at the perfect time. That is why we can see a wide range of fire alarm board uses in building sectors and in different industries.
Use Of Fire Alarm PCB
The device activates the alarm as soon as it can detect the reaction of heat detectors and smoke as further precautions. It can be involved in a home security system as well. Other versatile security-related devices like detectors, intruder alerts, etc use fire alarm PCB in their system.
How Does Fire Alarm PCB Work?
The fire alarm PCB working procedure is based on the thermistor used in the circuit. The circuit identifies and indicates the rise of temperature in an enclosed area beyond a certain value.
The LED indicates the temperature increasing by turning on. You can use a cooling system as well to reduce the temperature to its neutral value. The load or cooler automatically turns on if the temperature goes to a certain point without any monitoring system.
You can use an operational amplifier as well along with a negative coefficient thermistor to turn on the operation instead of using LED. The fire alarm PCB uses a thermistor as a temperature sensor. The thermistor is more cost-effective than most other temperature sensors.
Thermistors largely show temperature vs nonlinear resistance characteristics. Correction is a must needed in applications that need a linear response.
The input to the NPN transistor switches when the temperature changes. Then the output the NPN transistor provides helps for the LED indicator.
You can get more accurate results if you use a digital temperature sensor in your fire alarm PCB instead of an analog one. It works in a very delicate way to provide the best functionality.
You will get a better idea by watching the following video.
What Are The Applications Of Fire Alarm PCB?
Fire alarm PCB has a wide range of applications in today’s life. Different industries and residential buildings can not but operate without this printed circuit board. Some main applications of fire alarm boards are as follows.
- To detect and prevent disasters caused by fire, there is no other alternative to a fire alarm circuit board. Many industries, companies, offices, homes, labs, schools utilize fire alarm boards to avoid any disaster caused by the fire.
Applications Of Fire Alarm PCB
- A fire alarm board can function either as an independent device or as a part of a security system. Large buildings, industries, labs use complex security systems that include fire alarm systems, motion detection, intruder alert, smoke detection, etc.
Applications of fire alarm PCB can not be put into words. There is a huge area of applications for this PCB. Many hazardous disasters can be prevented only because of fire alarm boards.
What Are The Advantages Of Fire Alarm PCB?
The advantages of fire alarm PCB are beyond description. That is why the use of these boards is increasing rapidly. Our day-to-day life would be much more hazardous without the implications of this board.
Advantages Of Fire Alarm PCB
It is used everywhere. Different shopping malls, cinema halls, labs, schools, colleges, companies, homes use fire alarm devices to prevent horrible fire accidents. The board uses thermistors to detect heat and to provide signals.
A great amount of financial loss and the lives of people can be saved by applying fire alarm boards. Thus the advantages can not be put into words.
How Do You Design A Fire Alarm PCB?
You need to be very careful while designing a fire alarm PCB. The efficiency and durability of the PCB depending on the design of the PCB. The design can vary as the application or device requires.
You can customize the design as you would need it by consulting with the manufacturer. You can take the help of designing software to design the layout of the printed circuit board. The designing process begins with a blank page on the software.
Design Of Fire Alarm PCB
As you design the PCB on the software, you will get the same outcome as the final product. So make sure you are considering every little detail of the design. As you proceed with the fabrication process, you can not undo once a step is done.
In case of customization, the design stack-up should meet all the requirements of your device. Consider the design as the final product of your fire alarm PCB.
Watch the following video.
What Is The Manufacturing Process Of Fire Alarm PCB?
Fire alarm PCB uses a thermistor for having a temperature control system in it. The manufacturer needs to go through a specific process to manufacture these PCBs. The manufacturing process of five steps is as follows.
- Estimating the fire alarm PCB design
- Gathering the components of the fire alarm PCB
- Making the assembly of the fire alarm board
- Connecting circuits and soldering them
- Selecting the vias’ positions and drilling them
- Etching the copper from the board
How Shall We Produce Fire Alarm PCB Assembly?
Assembling a fire alarm PCB perfectly is very important as the functionality and efficiency of the PCB depend on it.
Fire Alarm PCB Assembly
To produce a fire alarm PCB assembly, first, you need to collect all the components that are required for your application. Then you have to place all the necessary components in their specific places. Make sure the pads, tracks, and holes are according to the requirement of your application.
After positioning the components and checking everything required, the manufacturer starts to solder all the components on the board. Finally, you will have your fire alarm PCB assembly prepared.
How To Connect A Control Panel To A Fire Alarm PCB?
There is a control panel connected to every fire alarm PCB. It is designed to receive information from devices to report and detect fire. It also monitors the operational integrity of the device.
The control panel of a fire alarm PCB provides automatic control of the equipment. It transmits necessary information about the fire occurrence to take precautions.
Control Panel Of Fire Alarm PCB
The control panel is generally semi-flush or surface mounted. To connect the panel to the PCB, it should be placed internally on the printed board. Extreme temperature, humidity, and physical abuse can reduce the efficiency of the board.
And so it should be located in a safe place to provide the best functionality. It should be in an easily accessible location as well. The manufacturer needs to be very careful and delicate while connecting the control panel to the fire alarm PCB.
How Does The Power Supply System Work In Fire Alarm PCB?
We need a well-balanced power supply to regulate a fire alarm PCB properly. A tiny change in the voltage supply can seriously damage the performance of the board. Variation in the voltage supply to the PCB can change the transistor biasing applied in the section of fire sensing.
Power Supply Of Fire Alarm PCB
The most common and basic power supply system used for fire alarm PCBs is a regulated power supply of 9V/500mA. It works for almost every type of fire alarm board. The power supply system functions in a specific way.
The primary voltage is 230V and the secondary voltage is 12V in Transformer T1 and it is a 500mA step-down transformer. D1 does the rectification job which is a 1A bridge. The C1 capacitor clarifies the output of the rectifier and the C2 capacitor works for AC by-pass.
There is also a fixed positive voltage regulator of 9V that is IC1 (7809). The manufacturer connects the rectifier and filter output to the 7805 input. Then the system provides a steady and regulated 9V output.
This power supply system is attached to the PCB to provide its required power. There is an ON/OFF switch S1 controlling the power supply to the PCB. And F1 is a safety fuse of 500mA.
What Is The Schematic Of Fire Alarm PCB?
The schematic of the fire alarm PCB is very crucial and it is a delicate schematic. First off the manufacturer wires the Timer IC NE555 (IC1) in the character of an unstable multivibrator that swings in the audio frequency band. Then the T1 and T2 transistors are switched and they drive the NE555 (IC1) multivibrator.
Schematic Of Fire Alarm PCB
The manufacturer then connects the IC1 output to NPN transistor T3. It makes the loudspeaker (LS1) produce sound. The IC1 frequency is mostly dependent on the rates of capacitor C2, resistors R5, and resistors R6.
The thermistor is wrapped in mica tape to stop it from melting. A regulated power supply of 6V-12V is required to run off the home fire alarm PCBs. We use LED1 to indicate the switch-on power of the fire alarm board.
How Does Fire Alarm PCB Use Thermistor?
The thermistor is a very important component for a fire alarm PCB. The main component of the PCB is the thermistor. This thermistor detects the fire in an alarm.
It is mainly an NTC thermistor of 10k ohm. It has 10kohms resistance at room temperature. We need to connect another resistance to this thermistor to generate a voltage divider circuit.
The voltage divider circuit is connected through a diode to the thermistor. When the transistor is put on the ground, the buzzer switches on then. Increasing the temperature causes an increase in the buzzer sound as well.
Fire Alarm PCB Using Thermistor
The thermistor resistance goes down when the temperature rises. Not to mention that the temperature rises in case of fire occurrence. This temperature expansion reduces the thermistor resistance.
The voltage divider output rises when the thermistor resistance reduces. This affects the inverting input of the Op-Amp as the voltage divider output is supposed to be on it. And so its value will be bigger than the inverting input value.
Consequently, the Op-Amp output becomes very high. The high output turns on the buzzer of the fire alarm. That’s how the fire alarm PCB operates.
How Does Fire Alarm PCB Produce Siren Sound?
The fire alarm PCB rings a siren sound if there’s any fire incident to alert people. The most common fire alarms alert people for fire occurrence with a buzzer. But this one is quite different because it utilizes basic PCB components to produce a siren sound.
Siren Sound In Fire Alarm PCB
Many integrated circuits can produce siren sounds. But we prefer to utilize basic electronics components like transistors, capacitors, resistors, etc to generate the siren effect.
Using the basic components will make the process much more beneficial for you. You can analyze the circuit and gain more knowledge. You will realize the internal operation of the board as well.
What Is The Signal Circuit In A Fire Alarm PCB?
Signal line circuit or SLC plays a vital role in fire alarm PCBs. SLC mainly transmits signals. The signal line circuit also supplies power to the output and input modules.
Signal Circuit In Fire Alarm PCB
It carries signals backward and forward in the control panel. It carries signals back and forth between each of the output and input devices connected to the printed circuit board as well.
What Type Of Surface Finishes Do You Use On A Fire Alarm PCB?
Surface finishing is a very important process for every kind of fire alarm PCB. A good surface finish can increase the durability and longevity of the board. The surface finish protects the board from external damages.
Surface Finish In Fire Alarm PCB
There are different types of surface finish available. ENIG, ENEPIG, HASL, ImSn, ImAg are the types of surface finishes mostly used in this type of PCBs.
How Do You Etch Copper From Fire Alarm PCB?
Etching is a very important step in fabricating fire alarm PCB. In this process of etching, the manufacturer declutters the unrequired copper from the printed circuit board. To etch copper from a fire alarm board, several chemicals are used.
Etching In Fire Alarm PCB
The most common chemical that the manufacturer uses to etch copper from a board is Ferric Chloride (FeCl3). It is a very toxic and harmful chemical. You must need to be very careful while etching copper from a PCB.
What Is The Cost Of Fire Alarm PCB?
There is no fixed pricing of fire alarm PCBs. It varies from one type of board to another. Different manufacturing companies cost them differently as well.
Cost Of Fire Alarm PCB
The cost mainly depends on the materials, the components, surface finishes, requirements, etc. if you customize your fire alarm board, it will cost you according to the customization.
How Do You Choose The Right Manufacturer Of Fire Alarm PCB?
Choosing the right manufacturer for fire alarm PCB is as important or else the total project can go in vain. You may check some facts while choosing the manufacturer for quality assurance.
The manufacturing company should have a group of experts to produce these PCBs. As the manufacturing of the boards is very delicate, they should have advanced technologies. Make sure they have enough knowledge about what they are working on.
If possible, pay a visit to the manufacturing company area. Cleanliness should be maintained as well. The manufacturer should have international certificates on their products. Experience is another important factor for manufacturers.
Conclusion
The fire alarm PCB industry is only expanding day by day. You can fabricate these PCBs with different features as well as customization.
The FAQ guide covers everything about fire alarm PCBs. If you want to know more about this PCB, contact us whenever you want. We will get back to you.