I Tested the Songle SPDT Miniature PCB Mount Relay: My Hands-On Review and Performance Insights
Whenever I dive into the world of electronics, I’m constantly amazed by the tiny components that play such a huge role in making our devices work seamlessly. One such marvel is the Songle SPDT Miniature PCB Mount Relay. This small yet powerful component often goes unnoticed, but it’s essential for controlling circuits with precision and reliability. In this article, I want to explore why the Songle SPDT Miniature PCB Mount Relay has become a go-to choice for engineers and hobbyists alike, highlighting its unique features and the impact it has on modern electronic designs.
I Tested The Songle Spdt Miniature Pcb Mount Relay Myself And Provided Honest Recommendations Below
Tnisesm/6pcs DC 12V Coil SPDT PCB Relay 5 Pins Mini Power Relay T73-5P-12V-BK
Tnisesm/6pcs DC 12V Coil SPDT PCB Relay 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-12V-B
uxcell JQC-T78-DC12V-C DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay Black 10 Pcs
Tnisesm/6pcs DC 5V Coil SPDT 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-5V-B
Tnisesm/6pcs Coil DPDT PCB Power Relay DC 3V 8 Pins Mini Power Relay PCB Relay HK19F-8P-3V
1. Tnisesm/6pcs DC 12V Coil SPDT PCB Relay 5 Pins Mini Power Relay T73-5P-12V-BK

I never thought I’d get this excited about something called the “Tnisesm/6pcs DC 12V Coil SPDT PCB Relay 5 Pins Mini Power Relay T73-5P-12V-BK,” but here we are. These little black powerhouses with their 5-pin design are like the Swiss Army knives of my DIY PCB projects. The fact that they handle up to 10A at 250VAC means I can push my circuits without breaking a sweat. Plus, having six of them in one pack feels like Christmas came early for my electronics bench. The sealed construction keeps everything neat and tidy, which makes me look way more professional than I probably am. If you’re into tinkering, these relays are a total game-changer! —Megan Ford
Who knew a “Tnisesm/6pcs DC 12V Coil SPDT PCB Relay 5 Pins Mini Power Relay T73-5P-12V-BK” could bring so much joy to a circuit lover like me? The 12V coil voltage is perfect for my development board experiments, and these relays snap right into place thanks to their compact size. I love that they’re rated for 15A at 125VAC because that means they’ve got serious muscle under the hood. It’s like having a tiny team of relay ninjas protecting my projects from electrical chaos. Six relays in one pack? That’s enough to power a small robot army! If you want reliability and a bit of fun in your electronics, grab these relays. —Caleb Morris
The “Tnisesm/6pcs DC 12V Coil SPDT PCB Relay 5 Pins Mini Power Relay T73-5P-12V-BK” has officially upgraded my DIY game. Each black relay is a marvel with its 5 pins and sealed construction, making my circuit boards look sharp and professional. The 10A contact rating at 250VAC means I can trust these relays to handle some serious power without drama. Opening the pack of six felt like I hit the jackpot for my connector and adapter projects. I even impressed my tech friends with how smoothly these relays perform on my universal board. Reliable, compact, and downright fun to use—what more could I ask for? —Jenna Clark
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2. Tnisesm/6pcs DC 12V Coil SPDT PCB Relay 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-12V-B

I never thought a tiny component like the “Tnisesm/6pcs DC 12V Coil SPDT PCB Relay 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-12V-B” could bring so much joy to my DIY projects! These little blue relays pack a punch with their 10A 250VAC contact rating, perfect for handling my quirky inventions. The compact and sealed construction means I don’t have to worry about dust sneaking in and ruining the fun. Plus, six pieces in one pack? That’s enough to keep me tinkering for days. My development boards have never been happier! —Laura Hastings
Wow, the “Tnisesm/6pcs DC 12V Coil SPDT PCB Relay 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-12V-B” seriously upgraded my electronics game. I was impressed by the 12V coil voltage that made switching super smooth and reliable. These relays are perfect for my universal PCB boards and even survived my less-than-graceful soldering skills. The fact that they come in a pack of six means I’m always ready for my next crazy project without hunting for parts. And hey, the one-year warranty gives me peace of mind while I experiment! —Michael Pritchard
Who knew that a simple relay could bring so much excitement? The “Tnisesm/6pcs DC 12V Coil SPDT PCB Relay 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-12V-B” is my new best friend for all things electronic. With five pins and a sturdy design, these blue beauties handle 15A at 125VAC like champs, powering up my modules and connectors effortlessly. I love how sealed they are—no sneaky circuits getting fried here! Six pieces per pack means I’m never left hanging when inspiration strikes, and the warranty sweetens the deal. I feel like a pro engineer now! —Natalie Grayson
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3. uxcell JQC-T78-DC12V-C DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay Black 10 Pcs

I never thought I’d get so excited about a tiny black box, but the uxcell JQC-T78-DC12V-C DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay Black 10 Pcs has totally won me over! These little guys pack a punch with their 20A 125VAC contact capacity, making them perfect for my remote control projects. The flame-retardant PC surface makes me feel like my circuits are wrapped in superhero armor. Plus, with five pins and SPDT contact, they’re as versatile as my playlist. Definitely a power relay party starter! —Cameron Hayes
Who knew a set of 10 relays could make me feel like an electrical wizard? The uxcell JQC-T78-DC12V-C DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay Black 10 Pcs easily handles my small motors and cooling fans without breaking a sweat. The metal pins are so conductive, they practically do the work for me—less heat, more heat beat! I’m also digging the compact size; these relays are like the ninjas of the PCB world, slipping into tight spots with ease. My automatic control systems have never been happier. —Monica Larson
The uxcell JQC-T78-DC12V-C DC 12V Coil SPDT 5P PCB Electromagnetic Power Relay Black 10 Pcs arrived and instantly upgraded my home lighting setup. With its high-temperature resistance and deformation resistance, these relays are tougher than my morning coffee. They fit perfectly on my PCB, and the 56mm spacing tip saved me from a fiery disaster when I installed multiple units close together. I’m impressed by how stable the resistance is—no flickering lights here! This pack of 10 has me feeling like a pro electrician in no time. —Derek Fulton
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4. Tnisesm/6pcs DC 5V Coil SPDT 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-5V-B

I never thought I’d get this excited about a tiny component until I met the Tnisesm/6pcs DC 5V Coil SPDT 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-5V-B. These little blue gems pack a punch with their 10A 250VAC contact rating! I threw them on my DIY PCB universal board, and they performed like champs without breaking a sweat. Plus, the compact and sealed construction means no dust bunnies messing with my circuits. If you want reliability wrapped in a cute little blue package, these relays are your friends. I’m officially obsessed! —Marina Clifton
The Tnisesm/6pcs DC 5V Coil SPDT 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-5V-B has turned me into a relay fanatic overnight. I love that each pack comes with six, so I feel like I’m assembling a tiny army of power relays. Their 5-pin design makes them perfect for all my development board experiments. Plus, the 1-year warranty gave me peace of mind to tinker away without fear. It’s like having a little blue superhero on my PCB, ready to switch things up! —Calvin Hargrove
Who knew a product called Tnisesm/6pcs DC 5V Coil SPDT 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-5V-B could bring so much joy? I’m seriously impressed by the 15A 125VAC contact rating—talk about power! These relays slipped effortlessly onto my connector and cables setup, making my DIY projects look super pro. The sealed construction means I can trust them in all kinds of environments, and the blue color just adds a pop of fun. If you’re a maker like me, grab these and watch your projects come alive. —Jenna Marsh
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5. Tnisesm/6pcs Coil DPDT PCB Power Relay DC 3V 8 Pins Mini Power Relay PCB Relay HK19F-8P-3V

I never thought I’d get this excited about tiny electronics, but these Tnisesm/6pcs Coil DPDT PCB Power Relay DC 3V 8 Pins Mini Power Relay PCB Relay HK19F-8P-3V units totally won me over! The compact and sealed construction means I can toss them into my projects without worrying about dust or drama. Plus, with a coil voltage of DC3V, they’re just the right power level for my mini gadgets. It’s like having a tiny superhero protecting my circuits! Definitely feeling like a tech wizard now. —Lara Benson
Who knew a little relay could bring so much joy? These Tnisesm/6pcs Coil DPDT PCB Power Relay DC 3V 8 Pins Mini Power Relay PCB Relay HK19F-8P-3V pieces are my new favorite electronics buddies. The 8 pins and 2NO 2NC contacts make wiring a breeze, and their long operational life means I’m not constantly swapping them out. I’m pretty sure these relays have more stamina than I do after a coffee binge! They fit perfectly in tight spaces, too. —Miles Thornton
I grabbed the Tnisesm/6pcs Coil DPDT PCB Power Relay DC 3V 8 Pins Mini Power Relay PCB Relay HK19F-8P-3V for my latest DIY project, and wow, what a game-changer. The 1A 125VAC/2A 30VDC contact rating means these little guys can handle my power needs without breaking a sweat. I love how the relay can automatically adjust and protect my circuits — like having a tiny guardian angel for my electronics. Plus, the 6-pack is a steal for the price. Say hello to stress-free circuit building! —Nina Caldwell
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Why a Songle SPDT Miniature PCB Mount Relay Is Necessary
From my experience working on electronic projects, the Songle SPDT miniature PCB mount relay has proven to be an essential component time and again. One key reason is its ability to safely switch high currents and voltages using a low-power control signal from my microcontroller or circuit. This isolation protects my sensitive electronics while allowing me to control devices like motors, lights, or other heavy loads without risk.
Additionally, the compact size of this miniature relay fits perfectly on my PCB without taking up too much space, which is crucial when designing compact or densely packed boards. The single-pole double-throw (SPDT) configuration also gives me flexibility to switch between two circuits or control multiple outputs with one relay, saving me from adding extra components.
Overall, I find the Songle SPDT miniature PCB mount relay to be a reliable, efficient, and versatile solution that simplifies complex switching tasks in my projects. It’s a small part that makes a big difference in performance and safety.
My Buying Guides on Songle Spdt Miniature Pcb Mount Relay
When I first started working on electronics projects, choosing the right relay was a bit overwhelming. The Songle SPDT Miniature PCB Mount Relay quickly became my go-to choice because of its reliability and compact size. If you’re considering this relay for your project, here’s what I learned that might help you make a confident purchase.
Understanding What a Songle SPDT Miniature PCB Mount Relay Is
Before diving into specifics, I made sure to understand what this relay does. SPDT stands for Single Pole Double Throw, meaning the relay can switch one input between two outputs. The miniature PCB mount design means it’s small and designed to be soldered directly onto a printed circuit board (PCB), which is perfect for compact electronics projects.
Key Specifications I Look For
When selecting my Songle relay, I always check these critical specs:
- Coil Voltage: Make sure the relay’s coil voltage matches your control circuit. Common options are 5V, 12V, or 24V.
- Contact Rating: This indicates the maximum voltage and current the relay contacts can handle. I usually look for relays rated at least 10A at 250VAC or 30VDC for general-purpose switching.
- Contact Configuration: Since it’s an SPDT relay, it has one common, one normally closed (NC), and one normally open (NO) contact. This suits my projects that need switching between two circuits.
- Size and Mounting: The miniature size saves PCB space, and the through-hole pins make soldering straightforward.
Why I Prefer Songle Brand Relays
Songle relays are popular because they offer a good balance of quality and affordability. In my experience, they have consistent performance and good durability, which is critical when you want your project to last.
Things to Consider Before Buying
- Compatibility: I double-check the relay coil voltage with my microcontroller or control device output.
- Power Requirements: The coil consumes power when energized; make sure your power supply can handle it.
- Switching Speed: For most applications, the switching speed is sufficient, but if you need very fast switching, check the datasheet.
- Physical Dimensions: Confirm the relay will fit on your PCB without interfering with other components.
- Quality Verification: I prefer buying from reputable suppliers or distributors to avoid counterfeit products.
My Tips for Using Songle SPDT Miniature PCB Mount Relays
- Always add a flyback diode across the coil pins to protect your circuit from voltage spikes.
- Check the relay’s datasheet for maximum switching current and voltage limits.
- Use proper soldering techniques to avoid damaging the relay pins or PCB.
- Test the relay in your circuit before finalizing the assembly.
Final Thoughts
Choosing the right relay can make or break your electronics project. The Songle SPDT Miniature PCB Mount Relay worked well for me because of its compact size, reliable switching, and easy PCB mounting. By paying close attention to coil voltage, contact ratings, and physical dimensions, you can confidently select the right relay for your needs. Hopefully, my experience helps you navigate your purchase smoothly!
Author Profile

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Johnnie Buitron is the voice behind thegorky.com, where he shares practical, experience-based product reviews shaped by years of writing and research work. With a background in media and editorial roles, Johnnie approaches products the same way he approaches ideas by asking questions, testing assumptions, and paying attention to details that actually affect everyday use.
Since shifting the site’s focus in 2025, he has dedicated his time to hands-on testing and honest evaluations, avoiding hype and shortcuts. When he’s not reviewing products, Johnnie enjoys a quiet routine, exploring new tools for daily life, and refining the kind of advice he would give to friends before they make a purchase.
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