Best Flame Retardant PCB Relays

Looking for the best flame retardant PCB relays? We’ve curated a list of 10 top-quality options to ensure safety and reliability for your projects.

Flame retardant PCB relays are essential for safe and reliable electrical systems. They protect your projects from overheating and fire risks. These relays are perfect for DIY enthusiasts and professionals alike.

High-quality materials like flame-retardant PC and pure copper coils ensure durability and stable performance. They are easy to install and widely used in home appliances, automotive systems, and industrial controls.

Discover the best flame retardant PCB relays that fit your needs. Whether you’re working on small DIY projects or large-scale systems, these relays deliver safety, reliability, and efficiency. Read on to find the perfect match for your next project.

List of Top 10 Flame Retardant PCB Relays

Title	Best For	Price
5PCS SRD-12VDC-SL-C 12V Relay, 10A 250VAC 5 Pin SPDT Power Relay	This 5-piece relay set is perfect for anyone needing reliable circuit control. It’s great for DIY projects, home appliances, or industrial systems.	View on Amazon (paid link)
uxcell 5 Pcs JQC-3FF-S-Z DC 24V Coil SPDT 5 Pin PCB Electromagnetic Power Relay	This PCB Electromagnetic Power Relay is perfect for anyone working on remote control, communication, or automatic control systems. It’s ideal for small motors, cooling fans, and electronic equipment.	View on Amazon (paid link)
uxcell 5 Pcs JQC-T78-DC12V-C DC 12V Coil SPDT 5 Pin PCB Electromagnetic Power Relay	This PCB Electromagnetic Power Relay is perfect for anyone working on remote control, communication, or automatic control systems. It’s ideal for small motors, cooling fans, and electronic equipment.	View on Amazon (paid link)
Slykew Pack-2 Automotive Relay, 1.1″ x 1.1″ x 0.98″ Five-pin DC 12V PCB Board Nylon Flame Retardant Shell Pure Copper Coil Relay, Modification Replacement Parts, Suitable for Most Cars (Black)	This Slykew Pack-2 Automotive Relay is perfect for car owners and DIY enthusiasts who need reliable, high-current relays for their vehicles. It’s ideal for upgrading or replacing parts in most cars, offering easy installation and strong performance.	View on Amazon (paid link)
uxcell 10Pcs DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay Black	This PCB Electromagnetic Power Relay is perfect for anyone working on remote control, communication, or automatic control systems. It’s ideal for small projects like lighting lamps, motors, or cooling fans.	View on Amazon (paid link)
25A Single Phase State Relay Module with Thickened Aluminum Heat Sink, Silent Crossing Switching SSR for Industrial Control Automation, Flame Retardant PCB Mount, High Reliability	This 25A Single Phase State Relay Module is perfect for anyone needing reliable, efficient control in industrial settings. It’s ideal for automation systems where heat management and energy savings matter most.	View on Amazon (paid link)
uxcell 20 Pcs JQC-T78-DC12V-C DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay Black Color	This PCB Electromagnetic Power Relay is perfect for anyone working on remote control, communication, or automatic control systems. It’s ideal for small motors, cooling fans, and electronic equipment.	View on Amazon (paid link)
5PCS SRD-24VDC-SL-C 24V Relay, 10A 250VAC 5 Pin SPDT Power Relay	This 5-piece relay set is perfect for anyone needing reliable circuit control. It’s great for DIY projects, home appliances, or industrial systems.	View on Amazon (paid link)
FOCMKEAS 10 Pcs 12V DC PCB Power Relay, JQC-3FF T73, 4 Pin SPST NO	Perfect for DIY enthusiasts, hobbyists, and professionals, these 10-piece PCB power relays are ideal for household appliances, smart home systems, and industrial control projects. Easy to replace and use, they’re great for breadboards, electronics, and lighting setups.	View on Amazon (paid link)
5PCS SRD-05VDC-SL-C 5V Relay, 10A 250VAC 5 Pin SPDT Power Relay	This 5V relay is perfect for anyone needing reliable circuit control. It’s great for DIY projects, home appliances, or industrial systems.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 Flame Retardant PCB Relays in our expert-curated guide. Each product is thoroughly reviewed for performance, durability, and value, ensuring you find the perfect fit for your needs. Whether for DIY projects or industrial use, this guide makes choosing safe and reliable relays simple and confident.

1. 5PCS SRD-12VDC-SL-C 12V Relay, 10A 250VAC 5 Pin SPDT Power Relay

These relays work well. They switch power fast.

The coil uses 12V DC. It handles 10A easily. These parts last long.

The pins fit PCB boards. Use them for DIY projects. This set has five.

Pros	Cons
Stable 12V coil ensures reliable circuit switching every time. Handles high loads up to 10A for powerful control. Durable materials for long-lasting, safe performance. Compact 5-pin design fits easily on PCBs. Works well in home, auto, and industrial systems.	Not suitable for high heat environments. Fits only specific PCB board types. Can produce noticeable clicking noise.

Perfect For:

This 5-piece relay set is perfect for anyone needing reliable circuit control. It’s great for DIY projects, home appliances, or industrial systems.

Ready to Purchase?

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2. uxcell 5 Pcs JQC-3FF-S-Z DC 24V Coil SPDT 5 Pin PCB Electromagnetic Power Relay

This relay uses a 24V DC coil. It has five pins for a PCB. The switch is reliable and strong.

Each pack has five pieces. They work well for power needs.

Pros	Cons
Flame-retardant and high-temperature resistant for safe use. Stable conductivity with less heat for reliable performance. Compact size fits tight spaces in various applications. Widely used in remote control and automatic systems.	Close spacing causes high heat, needs 28mm gap. No built-in heat protection or cooling features. Limited to DC 24V, not for higher voltages.

Perfect For:

This PCB Electromagnetic Power Relay is perfect for anyone working on remote control, communication, or automatic control systems. It’s ideal for small motors, cooling fans, and electronic equipment.

Ready to Purchase?

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3. uxcell 5 Pcs JQC-T78-DC12V-C DC 12V Coil SPDT 5 Pin PCB Electromagnetic Power Relay

The uxcell JQC-T78-DC12V-C is a 5-pin PCB electromagnetic power relay designed for DC 12V coil voltage. It comes in a pack of 5 pieces, making it a great choice for multiple projects.

Compact and durable, it measures 15 x 12 x 17mm and weighs just 29g. Its flame-retardant PC material ensures high strength and heat resistance.

Widely used in remote control, communication, and automatic systems, it’s perfect for lighting, motors, and fans. Remember to keep 9mm spacing between relays to avoid overheating.

Pros	Cons
Strong PC material resists high heat and fire. Small size fits easily into compact electronic devices. Good metal pins provide stable and reliable conductivity. High 20A capacity handles heavy power loads with ease. Five piece pack offers great value for your projects.	May heat up if packed too closely Only supports 12V DC coil voltage Small size may be hard to handle for beginners

Perfect For:

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4. Slykew Pack-2 Automotive Relay, 1.1″ x 1.1″ x 0.98″ Five-pin DC 12V PCB Board Nylon Flame Retardant Shell Pure Copper Coil Relay, Modification Replacement Parts, Suitable for Most Cars (Black)

The Slykew Pack-2 Automotive Relay is a reliable and durable solution for your car’s electrical needs. It measures 1.1″ x 1.1″ x 0.98″ and is designed for easy installation. This five-pin DC 12V relay is a perfect replacement for most cars.

With a pure copper core and silver contacts, it ensures stable current transmission and low resistance. The waterproof and flame-retardant housing adds an extra layer of safety and protection.

You’ll receive two relays in the pack, ready for plug-and-play use. The high current capacity of up to 80A makes it suitable for larger automotive equipment.

Pros	Cons
Pure Copper Core ensures stable current flow. Waterproof and Flame-retardant shell for safety. Five-pin design for easy connection. Supports up to 80A current for heavy-duty use. Plug-and-play setup, no hassle installation.	Limited to 12V systems, not suitable for higher voltage needs. No mounting hardware included, requires separate purchase. Bulkier size may not fit all compact spaces.

Perfect For:

This Slykew Pack-2 Automotive Relay is perfect for car owners and DIY enthusiasts who need reliable, high-current relays for their vehicles. It’s ideal for upgrading or replacing parts in most cars, offering easy installation and strong performance.

Ready to Purchase?

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5. uxcell 10Pcs DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay Black

This ten pack is built to last. It works fast and stays cool. You get safe power for your needs.

Each small switch is made strong. It runs fans and bright lights. The pin tips give smooth flow.

Set them wide to stay cool. Buy this set to start now.

Pros	Cons
Reliable for your DIY home electronics. Small size saves space on your PCB. Simple to install for quick use. Low cost for a pack of ten. Strong coil ensures stable and safe switching.	May get hot if placed too close together Small size might be tricky to handle Limited to 12V DC coil voltage only

Perfect For:

This PCB Electromagnetic Power Relay is perfect for anyone working on remote control, communication, or automatic control systems. It’s ideal for small projects like lighting lamps, motors, or cooling fans.

Ready to Purchase?

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6. 25A Single Phase State Relay Module with Thickened Aluminum Heat Sink, Silent Crossing Switching SSR for Industrial Control Automation, Flame Retardant PCB Mount, High Reliability

25A Single Phase State Relay Module with Thickened Aluminum Heat Sink, Silent Crossing Switching SSR for Industrial Control Automation, Flame Retardant PCB Mount, High Reliability

Boost your industrial control systems with our 25A Single Phase Relay Module. It’s designed for easy setup and high reliability, perfect for automation tasks.

Quick mounting, cooler operation, and low power use make this module stand out. It works well in tough conditions.

Fits many uses with its quiet performance and strong build. A top pick for smooth, efficient work.

Pros	Cons
Quick setup with 35mm din rail for easy mounting. Thick aluminum heat sink ensures cool, reliable operation. Low power use saves energy and costs. Durable design resists moisture and wear for long life.	No surge protection included for power spikes. Limited voltage range may restrict some uses. External cooling needed in extreme heat.

Perfect For:

This 25A Single Phase State Relay Module is perfect for anyone needing reliable, efficient control in industrial settings. It’s ideal for automation systems where heat management and energy savings matter most.

Ready to Purchase?

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7. uxcell 20 Pcs JQC-T78-DC12V-C DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay Black Color

The uxcell 20 Pcs JQC-T78-DC12V-C is a DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay. It comes in a black color and is designed for reliable performance.

This relay has a 20A contact capacity, 5 pins, and measures 15 x 12 x 17mm. It is made of flame-retardant PC material and has good metal pins for stable conductivity.

These small relays are widely used in remote control, communication, and automatic control systems. They are easy to install but require a 62mm spacing to prevent overheating.

Pros	Cons
High capacity: Handles 20A at 125VAC/14VDC easily. Compact size: Fits small spaces with 15x12x17mm dimensions. Durable build: Flame retardant and heat resistant PC surface. Reliable pins: Good conductivity with stable resistance. Versatile use: Perfect for remote control and automation.	May cause high heating if packed too close Small size might be tricky to handle Limited to 12V DC coil voltage only

Perfect For:

Ready to Purchase?

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8. 5PCS SRD-24VDC-SL-C 24V Relay, 10A 250VAC 5 Pin SPDT Power Relay

The 5PCS SRD-24VDC-SL-C 24V Relay is built for stable and reliable circuit switching. It features a 24V DC coil with low power consumption, ensuring consistent performance every time.

This relay supports a high load capacity of 10A and has a 5-pin SPDT design for flexible control between normally open and normally closed circuits. Its durable materials, including flame-retardant housing and silver alloy contacts, guarantee long-lasting use.

It fits easily on PCBs with its standard 5-pin layout. Perfect for home appliances, automotive circuits, and industrial controls. Easy to use. Very reliable. Great for many projects.

Pros	Cons
Stable 24V coil ensures reliable circuit switching. 10A high load capacity handles heavy electrical demands. Durable materials guarantee long-lasting performance. 5-pin design allows easy PCB integration.	Small pins can break easily. Requires solid solder joints for stability. Not suitable for high heat environments.

Perfect For:

This 5-piece relay set is perfect for anyone needing reliable circuit control. It’s great for DIY projects, home appliances, or industrial systems.

Ready to Purchase?

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9. FOCMKEAS 10 Pcs 12V DC PCB Power Relay, JQC-3FF T73, 4 Pin SPST NO

The FOCMKEAS 10 Pcs 12V DC PCB Power Relay is a compact and reliable solution for your circuit needs. It comes in a standard JQC-3FF (T73) size, making it easy to replace in various systems.

These relays feature a pure copper coil for low power use, a flame-retardant shell for safety, and anti-interference design for stable performance. Perfect for household appliances, DIY projects, and industrial control.

Pros	Cons
Compact size, easy replacement for various PCB projects. Pure copper coil ensures low power and long life. Flame-retardant shell for safe, stable operation in any condition. Anti-interference design delivers reliable switching in complex circuits.	Limited to 12V DC; not suitable for higher voltages Only SPST type; lacks more complex switching options May require careful handling due to small size

Perfect For:

Perfect for DIY enthusiasts, hobbyists, and professionals, these 10-piece PCB power relays are ideal for household appliances, smart home systems, and industrial control projects. Easy to replace and use, they’re great for breadboards, electronics, and lighting setups.

Ready to Purchase?

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10. 5PCS SRD-05VDC-SL-C 5V Relay, 10A 250VAC 5 Pin SPDT Power Relay

The 5PCS SRD-05VDC-SL-C 5V Relay is a powerful tool for circuit control. It handles 10A loads with ease. Perfect for DIY and pro projects.

Its 5V coil ensures stable switching. The SPDT design allows flexible control. Great for household and industrial use.

Made with durable materials, it lasts long. The 5-pin layout fits PCB boards easily. Ideal for Arduino and electronics.

Pros	Cons
Stable 5V coil ensures reliable circuit switching. 10A high load capacity handles heavy electrical loads. Durable materials guarantee long-lasting performance. 5-pin design allows easy PCB integration.	No built-in protection against voltage spikes or reverse polarity. Limited to 5V operation, not compatible with higher voltage systems. SPDT design may not suit complex multi-circuit applications.

Perfect For:

This 5V relay is perfect for anyone needing reliable circuit control. It’s great for DIY projects, home appliances, or industrial systems.

Ready to Purchase?

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Buying Guide

Flame retardant PCB relays are essential for safe and reliable electrical systems. They protect your projects from overheating and fire risks.

When choosing the best flame retardant PCB relays, consider these key factors:

Voltage Compatibility: Ensure the relay’s coil voltage matches your system’s power supply. Common options include 5V, 12V, and 24V.
Current Rating: Check the relay’s current capacity (e.g., 10A, 25A) to handle your load safely.
Pin Configuration: Choose the right pin layout (e.g., 5-pin SPDT) for your circuit needs.
Material Quality: Look for flame-retardant PC and pure copper coils for durability and heat resistance.
Size and Spacing: Ensure the relay fits your PCB and allows proper spacing to prevent overheating.
Application: Pick relays designed for your use case, like automotive, home appliances, or industrial controls.
Pack Quantity: Buy in packs (e.g., 5PCS, 10PCS) to save time and money for multiple projects.

With these factors in mind, you’ll find the perfect flame retardant PCB relay for your needs.