Looking for the best PCB control relays? We’ve got you covered with a curated list of top options to enhance your electronic projects.
PCB control relays are essential components for managing power in electronic projects. They act as switches, allowing you to control high-power devices with low-power signals. Whether you’re working on household appliances, DIY projects, or industrial systems, the right relay can make all the difference.
Choosing the best PCB control relay ensures safety, reliability, and efficiency. Our guide highlights top options, helping you find the perfect fit for your needs. Get ready to explore the best PCB control relays and take your projects to the next level!
List of Top 10 PCB Control Relays
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Weasch 10Pcs PCB Power Relay SRD-12VDC-SL-C, DC 12V Coil, 10A 250VAC, SPDT, 5 Pin, for Household Appliance Boards (10) |
This set is perfect for DIY makers and tech hobbyists who love building simple control projects. It also suits students and engineers who need a reliable relay for quick tests and small devices. |
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Weasch 6Pcs PCB Power Relay SRD-12VDC-SL-C, DC 12V Coil, 10A 250VAC, SPDT, 5 Pin, for Household Appliance Boards (6) |
This set is perfect for DIY builders, electronics hobbyists, and anyone who loves simple, hands-on projects. It’s great for people who want easy control of small devices on their boards. |
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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 projects like lighting lamps, motors, or cooling fans. |
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HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V |
This HiLetgo 2pcs DC 12V 2 Channel Relay Module is perfect for DIY enthusiasts and hobbyists who need a reliable and versatile relay module. It’s great for projects that require high or low-level triggering, stable performance, and easy wiring. |
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ANMBEST 2PCS 5V 4 Channel Relay with Optocoupler High/Low Level Trigger |
This ANMBEST 2PCS 5V 4 Channel Relay is perfect for DIY enthusiasts, hobbyists, and professionals who need a reliable and easy-to-use relay module. It’s ideal for projects with microcontrollers like Arduino, AVR, PIC, ARM, or DSP, offering simple installation and stable performance. |
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AEDIKO 4pcs DC 5V Relay Module – 1 Channel Relay Switch Board with Optocoupler Isolation, High or Low Level Trigger |
This AEDIKO 4pcs DC 5V Relay Module is perfect for anyone who needs a reliable and safe way to control high-power devices with low-power signals. It’s ideal for hobbyists, makers, and professionals working with microcontrollers, Raspberry Pi, or CNC machines. |
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Weasch 10Pcs PCB Power Relay SRD-05VDC-SL-C, DC 5V Coil, 10A 250VAC, SPDT, 5 Pin, for Household Appliance Boards (10) |
Perfect for DIY fans, makers, and anyone who loves building smart home projects. Great for people who want simple, strong control over motors, lights, and small devices. |
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uxcell 5 Pcs JQC-T78-DC12V-C DC 12V Coil SPDT 5 Pin PCB Electromagnetic Power Relay |
This set is great for DIY makers and tech hobbyists who need a small, strong, and safe relay for simple control jobs. It also fits anyone building light circuits, fans, or small motors who wants parts that work well and last. |
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AZ2150-1A-12DEF (3-Pack) 12VDC 40A SPST 4-Pin PCB Power Relay Compatible with Balboa BFBP20 Spa Control Boards & Zettler AZ2150-1A-12DEF Replacement for Hot Tub Heater Repair |
This 3-pack of AZ2150-1A-12DEF power relays is perfect for DIY enthusiasts and technicians who need reliable replacements for hot tub heater repairs. It’s ideal for fixing common issues like heaters not turning on or error codes, saving you from costly full-board replacements. |
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Weasch 6Pcs PCB Power Relay SRD-05VDC-SL-C, DC 5V Coil, 10A 250VAC, SPDT, 5 Pin, for Household Appliance Boards (6) |
This 6-piece PCB power relay set is perfect for DIY enthusiasts and professionals working on household appliance boards. It’s easy to use and reliable for projects needing DC 5V coil and 10A 250VAC capacity. |
Detailed Reviews
Discover the top 10 PCB Control Relays in this expert-curated guide, designed to help you find the perfect fit for your projects. Each relay is thoroughly reviewed for performance, reliability, and value, ensuring you make an informed choice. Whether you’re a DIY enthusiast or a professional, this guide simplifies your search with clear, easy-to-understand insights. Dive in to find the best PCB Control Relays tailored to your needs and take your projects to the next level.
1. Weasch 10Pcs PCB Power Relay SRD-12VDC-SL-C, DC 12V Coil, 10A 250VAC, SPDT, 5 Pin, for Household Appliance Boards (10)
The Weasch 10Pcs PCB Power Relay is a reliable component for your projects. It works with DC 12V and handles up to 10A 250VAC.
This relay has a 5-pin SPDT design and uses silver alloy contacts. It’s perfect for household appliance boards and DIY projects.
Check the dimensions before buying. It fits breadboards with 2mm hole spacing. Use it for remote control, communication, or automatic systems.
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Perfect For:
This set is perfect for DIY makers and tech hobbyists who love building simple control projects. It also suits students and engineers who need a reliable relay for quick tests and small devices.
Ready to Purchase?
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2. Weasch 6Pcs PCB Power Relay SRD-12VDC-SL-C, DC 12V Coil, 10A 250VAC, SPDT, 5 Pin, for Household Appliance Boards (6)
The Weasch 6Pcs PCB Power Relay is a reliable component for your projects. It’s designed for household appliance boards and works with DC 12V systems. Each relay is compact and easy to use.
This relay has a 10A 250VAC capacity, SPDT contact, and 5 pins. It’s perfect for DIY enthusiasts and automatic control systems.
Use it for remote control, communication, or electronic equipment. The 6-piece set ensures you have enough for multiple projects.
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Perfect For:
This set is perfect for DIY builders, electronics hobbyists, and anyone who loves simple, hands-on projects. It’s great for people who want easy control of small devices on their boards.
Ready to Purchase?
3. uxcell 5 Pcs JQC-3FF-S-Z DC 24V Coil SPDT 5 Pin PCB Electromagnetic Power Relay
The uxcell JQC-3FF-S-Z relay is a compact and reliable electromagnetic power relay. It operates with a DC 24V coil voltage and features a 5-pin SPDT design. This relay is perfect for small-scale applications.
Its PC material surface is flame retardant and heat resistant, ensuring durability. The metal pins offer excellent conductivity with minimal heat. It’s lightweight at 41g and measures 19 x 15 x 19mm.
This relay is widely used in remote control, communication, and automatic systems. It’s ideal for lighting, motors, and fans. Always maintain a 28mm spacing when installing multiple relays.
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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?
4. HiLetgo 2pcs DC 12V 2 Channel Relay Module with Isolated Optocoupler High and Low Level H/L Level Trigger Module Triggered by DC 12V
The HiLetgo 2pcs DC 12V 2 Channel Relay Module is a versatile tool for your projects. It works with DC 12V and lets you control devices easily.
It has patch optical isolation for strong, stable performance. You can set high or low triggers with a jumper. All interfaces connect directly, making it super convenient.
The fault-tolerant design ensures safety. Even if the control line breaks, the relay won’t operate. Perfect for reliable, hassle-free use.
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Perfect For:
This HiLetgo 2pcs DC 12V 2 Channel Relay Module is perfect for DIY enthusiasts and hobbyists who need a reliable and versatile relay module. It’s great for projects that require high or low-level triggering, stable performance, and easy wiring.
Ready to Purchase?
5. ANMBEST 2PCS 5V 4 Channel Relay with Optocoupler High/Low Level Trigger
The ANMBEST 2PCS 5V 4 Channel Relay is a versatile tool for controlling devices. It works with microcontrollers like Arduino and ARM. Each relay can switch on/off independently.
It’s reliable with fault-tolerant design and optical coupling isolation. Installation is easy with screwed terminals and fixed bolt holes. You can choose high/low level trigger with a jumper.
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Perfect For:
This ANMBEST 2PCS 5V 4 Channel Relay is perfect for DIY enthusiasts, hobbyists, and professionals who need a reliable and easy-to-use relay module. It’s ideal for projects with microcontrollers like Arduino, AVR, PIC, ARM, or DSP, offering simple installation and stable performance.
Ready to Purchase?
6. AEDIKO 4pcs DC 5V Relay Module – 1 Channel Relay Switch Board with Optocoupler Isolation, High or Low Level Trigger
The AEDIKO 5V Relay Module gives you steady control and safe use. It has strong optocoupler isolation that keeps your system protected.
It is simple to set. It works with many boards. It gives stable performance.
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Perfect For:
This AEDIKO 4pcs DC 5V Relay Module is perfect for anyone who needs a reliable and safe way to control high-power devices with low-power signals. It’s ideal for hobbyists, makers, and professionals working with microcontrollers, Raspberry Pi, or CNC machines.
Ready to Purchase?
7. Weasch 10Pcs PCB Power Relay SRD-05VDC-SL-C, DC 5V Coil, 10A 250VAC, SPDT, 5 Pin, for Household Appliance Boards (10)
The Weasch 10Pcs PCB Power Relay is a reliable and versatile component. It’s perfect for household appliance boards. Each relay is easy to use and built to last.
It has a DC 5V coil and can handle 10A at 250VAC. The SPDT contact makes it flexible for many uses. Check the size before buying to ensure a perfect fit.
This pack includes 10 relays, great for DIY projects. Use them for remote control, communication, or automatic systems. They’re ideal for small motors and indicator lights.
| Pros | Cons |
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Perfect For:
Perfect for DIY fans, makers, and anyone who loves building smart home projects. Great for people who want simple, strong control over motors, lights, and small devices.
Ready to Purchase?
8. uxcell 5 Pcs JQC-T78-DC12V-C DC 12V Coil SPDT 5 Pin PCB Electromagnetic Power Relay
The uxcell 5 Pcs JQC-T78-DC12V-C is a DC 12V Coil SPDT 5 Pin PCB Electromagnetic Power Relay. It’s compact and durable, perfect for controlling and protecting devices. Its flame-retardant surface ensures safety and reliability.
This relay has 5 pins, SPDT contact, and handles 20A 125VAC / 20A 14VDC. It measures 15 x 12 x 17mm and weighs 29g. The black color and PC material make it strong and heat-resistant.
Use it for lighting, motors, or automatic systems. It’s widely used in remote control, communication, and aerospace tech. Remember to keep 9mm spacing when installing multiple relays to avoid overheating.
| Pros | Cons |
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Perfect For:
This set is great for DIY makers and tech hobbyists who need a small, strong, and safe relay for simple control jobs. It also fits anyone building light circuits, fans, or small motors who wants parts that work well and last.
Ready to Purchase?
9. AZ2150-1A-12DEF (3-Pack) 12VDC 40A SPST 4-Pin PCB Power Relay Compatible with Balboa BFBP20 Spa Control Boards & Zettler AZ2150-1A-12DEF Replacement for Hot Tub Heater Repair
The AZ2150-1A-12DEF (3-Pack) is a high-power relay designed for heavy-duty use. It works with 12VDC and can handle 40A of power. This 4-pin SPST-NO component is perfect for PCB mounting.
It’s compatible with Balboa BFBP20 spa controllers and other industrial boards. Use it to fix hot tub heaters or replace Zettler AZ2150-1A-12DEF relays.
The industrial-grade design ensures long-lasting performance. The sealed PBT housing protects against moisture and dust. This 3-pack is ideal for DIY repairs and future maintenance.
| Pros | Cons |
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Perfect For:
This 3-pack of AZ2150-1A-12DEF power relays is perfect for DIY enthusiasts and technicians who need reliable replacements for hot tub heater repairs. It’s ideal for fixing common issues like heaters not turning on or error codes, saving you from costly full-board replacements.
Ready to Purchase?
10. Weasch 6Pcs PCB Power Relay SRD-05VDC-SL-C, DC 5V Coil, 10A 250VAC, SPDT, 5 Pin, for Household Appliance Boards (6)
The Weasch 6Pcs PCB Power Relay is a reliable component for household appliance boards. It has a DC 5V coil and can handle 10A at 250VAC, making it ideal for various applications.
This SPDT relay comes with 5 pins and is easy to use. Each pack includes 6 pieces, perfect for multiple projects.
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Perfect For:
This 6-piece PCB power relay set is perfect for DIY enthusiasts and professionals working on household appliance boards. It’s easy to use and reliable for projects needing DC 5V coil and 10A 250VAC capacity.
Ready to Purchase?
Buying Guide
PCB control relays make projects smoother. They keep your devices safe. They give you steady, simple control.
You get a clear, hands-on experience with these parts. You feel in charge of every switch and signal. Each relay helps your project run clean and stable.
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Coil Voltage: Pick a coil voltage that matches your board. It keeps the relay stable. It also stops damage from wrong power levels.
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Contact Rating: Check how much current and voltage the relay can handle. This protects your load. It also keeps your system safe.
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Contact Type: Choose SPDT or SPST based on your setup. Each type gives a different switching style. Pick what fits your circuit.
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Pin Layout: Make sure the pin spacing matches your board. This avoids loose fits. It also makes soldering easy.
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Size: Check the relay’s dimensions before you buy. A good fit keeps your board neat. It also helps airflow.
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Material Quality: Look for flame‑retardant and heat‑resistant parts. They last longer. They stay safe under load.
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Isolation: Optocoupler isolation keeps your control side safe. It blocks noise. It keeps signals clean.
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Trigger Type: Some relays use high or low level triggers. Pick the one your board supports. It makes control simple.
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Channels: More channels mean more control. Choose one, two, or four channels. Match it to your project size.
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Use Case: Pick a relay built for your job. Some fit small loads. Some handle heavy work.