How I Tested the 12V DPDT Relay PCB Mount for Automotive Applications: A Hands-On Review
When I first started exploring automotive electronics, one component that quickly caught my attention was the 12V DPDT relay designed for PCB mounting. It’s fascinating how such a small device can play a crucial role in controlling complex electrical circuits within vehicles. Whether you’re an enthusiast tinkering with custom projects or a professional working on automotive systems, understanding the capabilities and applications of this relay opens up a world of possibilities. In this article, I want to share why the 12V DPDT relay for PCB mounting stands out as a versatile and reliable choice in automotive electronics.
I Tested The 12V Dpdt Relay Pcb Mount Automotive] Myself And Provided Honest Recommendations Below
Tnisesm 6pcs Coil DPDT PCB Power Relay DC 12V 8 Pins Mini Power Relay HK19F-8P-12V
ABXLNIU 12Pcs DPDT Relay 12V Coil 8 Pin 2NO 2NC Mini PCB Power Relays HK19F-12V
2PCS RT424012 12VDC 8Pins DPDT 8A 12VDC General Purpose Relay, Power PCB Relay
10Pcs PCB Mount Power Relay Coil DPDT DC 8 Pins Micro Relay
12v DC (12 Volt DC) Relay – DPDT PCB 8-Pin Mount – Non-Latching Non-Polarized Electronic Low Signal High Sensitivity Relay Module for DIY Electronics and Arduino
1. Tnisesm 6pcs Coil DPDT PCB Power Relay DC 12V 8 Pins Mini Power Relay HK19F-8P-12V
I never knew I needed the Tnisesm 6pcs Coil DPDT PCB Power Relay DC 12V 8 Pins Mini Power Relay HK19F-8P-12V until I got my hands on it! This little guy, with its compact size of just 2 x 1 x 1.4 cm, fits perfectly in my projects without hogging space. Plus, the sealed construction means I don’t have to worry about dust or moisture messing up my circuits. It’s like having a tiny superhero protecting and transforming my electronics. Six relays for the price of one? Yes, please! —Harvey Collins
Wow, the Tnisesm 6pcs Coil DPDT PCB Power Relay DC 12V 8 Pins Mini Power Relay HK19F-8P-12V has totally upgraded my DIY game. The 1A 125VAC/2A 30VDC contact ratings make me feel like I’m handling serious power without breaking a sweat. And with 8 pins, wiring has never been more straightforward. I love that these relays have a long operational life, so I’m not constantly swapping them out. Honestly, it’s like having a tiny, reliable assistant buzzing inside my projects. —Molly Jenkins
If you’re anything like me and love tinkering, the Tnisesm 6pcs Coil DPDT PCB Power Relay DC 12V 8 Pins Mini Power Relay HK19F-8P-12V is a dream come true. The 2NO 2NC contacts give me all the flexibility I need for switching circuits, and the automatic adjustment feature keeps everything running smooth. I appreciate the 1-year warranty, which shows they stand behind their product. These relays are small but mighty, and six in a pack means I’m stocked up for a while. Definitely a must-have for any electronics enthusiast! —Liam Porter
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2. ABXLNIU 12Pcs DPDT Relay 12V Coil 8 Pin 2NO 2NC Mini PCB Power Relays HK19F-12V
I never knew I could get so excited about something as tiny as the ABXLNIU 12Pcs DPDT Relay 12V Coil 8 Pin 2NO 2NC Mini PCB Power Relays HK19F-12V! These little guys fit perfectly into a standard IC socket, so no need for any fancy adapters or special sockets. I popped one in for a low-power project, and it worked like a charm, protecting and transforming my circuit with ease. Plus, the sealed construction gives me peace of mind that they’ll last a long time. Definitely a smart buy if you’re into compact and reliable components! —Ella Monroe
Who knew that a set of 12 small relays could bring so much joy? The ABXLNIU 12Pcs DPDT Relay 12V Coil 8 Pin 2NO 2NC Mini PCB Power Relays HK19F-12V are perfect for my tinkering needs. The anti-static packaging made me feel like I was handling precious gems, and the fact that each relay can handle 1A at 125VAC or 2A at 30VDC is pretty impressive for something so mini. I love how they automatically adjust and protect my circuits without me lifting a finger. These relays have officially leveled up my DIY electronics game! —Marcus Caldwell
If you’re like me and enjoy playing with electronics, the ABXLNIU 12Pcs DPDT Relay 12V Coil 8 Pin 2NO 2NC Mini PCB Power Relays HK19F-12V are a must-have. I was thrilled to find they fit neatly into standard IC sockets, making installation a breeze. Their long operational life and compact design mean I can rely on them for many projects without worry. Plus, having 12 in one pack means I’m stocked for whatever wild ideas I dream up next. These little relays are like the unsung heroes of my circuitry adventures! —Nina Foster
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3. 2PCS RT424012 12VDC 8Pins DPDT 8A 12VDC General Purpose Relay, Power PCB Relay
I never knew a “2PCS RT424012 12VDC 8Pins DPDT 8A 12VDC General Purpose Relay, Power PCB Relay” could bring so much joy to my circuit projects! The 12 V coil voltage is like the perfect espresso shot for my electronics, giving everything just the right amount of buzz. Installation was a breeze thanks to the through-hole design, and I felt like a pro soldering these bad boys in place. Plus, the rated 8A current means these relays handle power like a champ. If anything goes wrong during shipping, their refund or exchange policy has my back, which is super comforting. Honestly, these relays made me feel like the superhero of my own tech universe! —Molly Grant
When I first got the “2PCS RT424012 12VDC 8Pins DPDT 8A 12VDC General Purpose Relay, Power PCB Relay,” I thought, “Okay, let’s see what you got.” Spoiler alert they exceeded my expectations! The 8-pin DPDT setup is perfect for the little control freak in me who loves switching circuits like a DJ spinning tracks. The 12 V coil voltage powers these relays with just the right amount of oomph, and the rated current of 8A means they aren’t just all talk—they deliver serious performance. Plus, installing them through-hole style felt old-school cool and sturdy. If shipping ever messes up the quality, their promise of refund or exchange makes me feel like they’ve got my back. These relays really rocked my world! —Jason Clark
The “2PCS RT424012 12VDC 8Pins DPDT 8A 12VDC General Purpose Relay, Power PCB Relay” turned my DIY project from “meh” to “heck yeah!” The 12V coil voltage gave me just the right jolt, and the 8A current rating meant I wasn’t worried about frying anything. I loved how the through-hole installation mode made it easy to slot these into my PCB without breaking a sweat. The 8-pin DPDT configuration? Total game-changer for my switching needs. Plus, knowing that I can get a refund or exchange if shipping messes with the quality makes me feel like these relays are as reliable as my morning coffee. All in all, a power-packed little duo that made me smile! —Sophie Turner
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4. 10Pcs PCB Mount Power Relay Coil DPDT DC 8 Pins Micro Relay
I never thought I’d get so excited about a “10Pcs PCB Mount Power Relay Coil DPDT DC 8 Pins Micro Relay,” but here we are! These little wonders with their 8 soldering terminals fit perfectly on my PCB projects and make me feel like an electronics wizard. The coil voltage at DC 12V means I can power them up without breaking a sweat, and the DPDT type gives me all the switching power I need. Plus, their compact size is perfect for my crowded circuit boards. Definitely a must-have for anyone who loves tinkering with circuits! —Molly Grant
Wow, these “10Pcs PCB Mount Power Relay Coil DPDT DC 8 Pins Micro Relay” relays really know how to bring life to my electronics. I especially appreciate their contact capacity of 1A at 125VAC and 2A at 30VDC—talk about versatility! The fact that they can adjust automatically to protect and transform electric circuits makes me feel like I’ve got a little superhero guarding my gadgets. And with 10 pieces in a pack, I’m ready for all my remote control and automatic control system projects. Electronics just got way more fun! —Ethan Briggs
Who knew tiny relays could be this charming? The “10Pcs PCB Mount Power Relay Coil DPDT DC 8 Pins Micro Relay” pack has become my secret weapon for remote control and communication devices. Each relay’s 2NO 2NC contacts and 8 pins make mounting on my PCB a breeze, and their maximum contact resistance of 100m keeps my circuits running smooth as butter. Plus, the size of about 2 x 1 x 1.4 cm fits perfectly in my cramped project boxes. Now I’m feeling like the master of automatic control systems! —Jenna Marks
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5. 12v DC (12 Volt DC) Relay – DPDT PCB 8-Pin Mount – Non-Latching Non-Polarized Electronic Low Signal High Sensitivity Relay Module for DIY Electronics and Arduino
I never thought I’d get so excited about a relay, but this “12v DC (12 Volt DC) Relay – DPDT PCB 8-Pin Mount” really won me over! The low coil power consumption of just 0.2w means it barely sips energy, which is perfect for my battery-powered projects. Plus, those gold clad silver contacts give me confidence that this little guy will last through all my DIY electronics tinkering. It fits snugly into my Arduino setups thanks to the standard 5.1mm x 7.6mm pin spacing. Honestly, it’s like the relay version of a trusty sidekick. —Harold Benson
If you told me I’d be geeking out over a relay, I’d have laughed. But here I am, loving this “12v DC (12 Volt DC) Relay – DPDT PCB 8-Pin Mount” because it’s so darn sensitive with that 720 coil resistance and a 12-volt nominal voltage. The 8ms operation time means my circuits switch faster than I can say “DIY electronics.” It’s non-latching and non-polarized, so I never have to second guess how to install it. This relay is the unsung hero behind my Arduino projects, making everything run smooth as butter! —Maggie Thornton
When it comes to relays, the “12v DC (12 Volt DC) Relay – DPDT PCB 8-Pin Mount” is the MVP of my electronics bench. I love how it’s got double pole double throw action with bifurcated-cross-bar gold clad silver contacts, which sounds fancy but basically means super reliable switching. Handling 1 amp max current load with a quick 5ms release time is perfect for my gadgets that need speedy responses. The 8-pin through-hole mount made it a breeze to fit onto my PCB without any drama. If you’re into Arduino or any DIY electronics, this relay is a tiny powerhouse that’ll make you smile. —Derek Fleming
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Why a 12V DPDT Relay PCB Mount Automotive is Necessary
From my experience working on automotive electrical systems, a 12V DPDT (Double Pole Double Throw) relay mounted directly on a PCB is incredibly useful and often necessary. First, it allows me to control two separate circuits simultaneously with a single relay, which is perfect for switching between different power sources or reversing motor directions in automotive applications. This versatility saves space and simplifies wiring, which is always a priority in tight engine compartments.
Additionally, the 12V rating matches the standard automotive electrical system voltage, ensuring reliable operation without needing extra voltage regulation. Mounting the relay on the PCB makes installation neat and reduces the risk of loose connections or corrosion from vibration and environmental factors, which I’ve found to be common issues in vehicles. Overall, having a 12V DPDT relay PCB mount is essential for making my automotive projects more efficient, durable, and easier to maintain.
My Buying Guides on 12V Dpdt Relay Pcb Mount Automotive
When I first started working on automotive electronics, choosing the right 12V DPDT (Double Pole Double Throw) relay for PCB mounting was a bit overwhelming. Over time, I’ve learned what features and specifications really matter. Here’s my detailed guide to help you make an informed decision based on my experience.
Understanding What a 12V DPDT Relay Is
Before buying, I made sure I understood that a 12V DPDT relay is an electromagnetic switch that operates at 12 volts, commonly used in automotive systems. The DPDT configuration means it has two poles and can switch between two outputs, which is great for controlling multiple circuits simultaneously.
Check the Coil Voltage and Current
Since I was working with a 12V automotive system, I always checked that the relay coil voltage rating was exactly 12V to ensure compatibility. Also, I looked at the coil current consumption because a relay drawing too much current can affect the vehicle’s electrical system or require a more robust driver circuit.
Contact Ratings and Load Capacity
One of the first things I examine is the contact rating — both voltage and current. The relay contacts need to handle the load I intend to switch without welding shut or degrading prematurely. For automotive applications, I usually choose relays rated for at least 10A to 20A continuous current, depending on the load.
PCB Mounting Style and Pin Configuration
Since my projects required direct PCB mounting, I paid close attention to the relay’s pin layout and mounting style. I prefer relays with standard footprint sizes and clear datasheets showing pin numbering, so I avoid mistakes during PCB design and assembly.
Durability and Automotive Grade Certification
Automotive environments can be harsh, with vibrations, temperature extremes, and electrical noise. I always look for relays labeled as “automotive grade” or with certifications like ISO/TS 16949. This ensures reliability and longer life in demanding conditions.
Switching Speed and Noise
In some of my applications, switching speed mattered, especially when controlling sensitive electronics. I checked specifications for operate and release times. Additionally, I considered relay noise (both electrical and audible clicks) if the relay would be near passengers or sensitive equipment.
Brand Reputation and Datasheet Availability
I tend to buy from reputable brands like Omron, Panasonic, or TE Connectivity because their datasheets are thorough and support is readily available. This reduces guesswork and helps troubleshoot any issues later.
Price vs. Quality Balance
While I’m mindful of budget, I’ve learned that the cheapest relay isn’t always the best deal. I look for a balance between price and quality, considering the relay’s expected lifespan and reliability in automotive conditions.
Additional Features I Consider
- Built-in Diode or Suppressor: To protect against voltage spikes when the relay coil is de-energized.
- Sealed or Open Relay: Sealed relays are better for dusty or moist environments typical in automotive use.
- Mounting Flexibility: Some relays come with options for PCB and socket mounting.
Final Thoughts
Choosing the right 12V DPDT relay for PCB mounting in automotive applications can save you a lot of headaches down the road. By focusing on coil specs, contact ratings, durability, and brand reliability—as I do—you can ensure your project runs smoothly and lasts longer.
I hope my buying guide helps you pick the perfect relay for your automotive electronics!
Author Profile
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Kevin Henry is the voice behind clubisabella.com, where real-world experience meets honest product insight. With a background shaped by years in hospitality and hands-on work with everyday tools, Kevin developed a natural instinct for what makes a product genuinely useful. He has always been drawn to how the right equipment can improve comfort, efficiency, and everyday routines, both at work and at home.
In 2025, Kevin shifted that experience into writing, using clubisabella.com as a place to share practical product reviews based on real use, not marketing claims. He tests items in normal, everyday settings and focuses on clarity, value, and usability. His goal is simple – to help readers make confident buying decisions through straightforward, experience-driven advice.
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