Why I Trust the Songle SPDT 5 Pin Miniature PCB Mount Relay for My Electronic Projects: An Expert’s Perspective

When I first came across the Songle SPDT 5 Pin Miniature PCB Mount Relay, I was immediately intrigued by its compact design and versatile functionality. Relays are essential components in countless electronic projects, acting as reliable switches that control circuits with precision. This particular relay stands out not only because of its small footprint but also due to its robust performance and ease of integration onto printed circuit boards. Whether you’re a hobbyist tinkering with DIY electronics or a professional engineer designing complex systems, understanding what makes this miniature relay tick can open up a world of possibilities in your projects.

I Personally Reviewed The Songle SPDT 5 Pin Miniature PCB Mount Relay And Shared My Honest Recommendations

1. SRD-12VDC-SL-C Mini DC Power Relay – 5 Pins, Auto PCB Mount for Universal Appliance

When I first came across the SRD-12VDC-SL-C Mini DC Power Relay, I was immediately intrigued by its compact design and versatility. This relay, designed with 5 pins and intended for automatic PCB mounting, promises a seamless integration into various electronic projects and appliances. Its miniaturized form factor means it doesn’t take up much space, which is a huge advantage for anyone like me working on compact or densely packed circuit boards.

One of the standout features for me is the coil voltage rating of DC 12V. This is a common voltage level in many electronic systems, making it incredibly convenient to power this relay without needing specialized power supplies. Additionally, the maximum rating of 10A for different voltage types (250VAC, 125VAC, 30VDC, and 28VDC) speaks volumes about its robustness. It means this relay can handle a respectable load, whether AC or DC, making it a versatile choice for a broad range of applications.

The 5-pin configuration is particularly interesting because it allows the relay to automatically adjust, protect, and transform the circuit it’s integrated into. From my experience, this level of adaptability is crucial when dealing with unpredictable electrical loads or when safeguarding sensitive components. It ensures that the relay not only acts as a switch but also contributes to the overall reliability and safety of the system.

What really sold me on this relay is its wide range of applications. It’s not just limited to a single type of device or system. Whether it’s remote controls, communication devices, automatic control systems, or various electronic equipment, the SRD-12VDC-SL-C fits right in. I’ve found that such multipurpose components reduce the need to stockpile different relays for different projects, simplifying both inventory and design decisions.

Moreover, its capability to control small motors, incandescent lamps, indicator lights, low-power power supplies, and intelligent instrumentation makes it an excellent all-rounder. For me, this means I can rely on one relay to handle multiple types of loads without worrying about compatibility issues. Its ability to act as a pusher for high-power electromagnetic contactors is an added bonus, especially when dealing with more demanding industrial or automation tasks.

To give you a clearer picture, here’s a quick summary table of the key features

Feature	Description
Coil Voltage	DC 12V
Maximum Load Rating	10A at 250VAC / 125VAC / 30VDC / 28VDC
Pin Configuration	5 Pins, Auto PCB Mount
Automatic Adjustment	Yes, protects and transforms circuits
Common Applications	Remote control, communication, automatic control systems, electronic equipment
Load Types Controlled	Small motors, incandescent lamps, indicator lights, low-power power supplies, solenoid valves
Additional Use	Pusher for high-power electromagnetic contactors

Overall, I feel the SRD-12VDC-SL-C Mini DC Power Relay is a solid, dependable choice for anyone looking to integrate a powerful yet compact relay into their projects. Its flexibility across multiple load types and applications, combined with a straightforward 12V coil operation and respectable current rating, makes it a valuable component for both hobbyists and professionals alike. If you’re in the market for a relay that balances size, power, and adaptability, this model definitely deserves serious consideration.

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2. Tnisesm/6pcs DC 5V Coil SPDT 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-5V-B

When I first came across the Tnisesm/6pcs DC 5V Coil SPDT 5 Pins Mini PCB Power Relay JQC 3FF T73-5P-5V-B, I was immediately intrigued by its compact design and promising specifications. As someone who frequently works on electronics projects involving development boards and DIY PCBs, I understand how crucial reliable relays are for switching applications. This particular relay caught my attention because it offers a solid coil voltage of DC 5V, which is compatible with most microcontroller platforms and power supplies I use regularly.

One of the standout features for me is the contact rating. With the ability to handle 10A at 250VAC or 15A at 125VAC, this relay can comfortably manage moderate to high current loads, making it versatile for various applications such as controlling motors, lighting circuits, or home automation systems. The fact that it is a Single Pole Double Throw (SPDT) relay with 5 pins means I can switch between two different circuits easily, adding flexibility to my projects without needing additional components.

The compact and sealed construction of these relays is another big plus. In my experience, relays that are well-sealed tend to last longer and perform reliably under different environmental conditions. This makes them suitable not only for indoor projects but also for slightly harsher conditions where dust or moisture might be present. The blue color helps me quickly identify these relays on my workbench or within a densely packed PCB, which is a small but thoughtful detail.

Receiving 6 pieces in one package is economical and convenient. Whether I’m prototyping or building multiple units of a project, having multiple relays on hand avoids constant reordering and delays. Additionally, the wide range of applications listed—modules, development boards, DIY PCBs, connectors, cables, adapters, and IC sockets—shows me that these relays are designed with versatility in mind, making them a great addition to my electronics toolkit.

What also reassures me is the 1-year warranty offered by the manufacturer. It shows confidence in the product’s quality and provides peace of mind in case I encounter any issues. Knowing that support is available if something goes wrong makes me more comfortable investing in this relay set.

In summary, the Tnisesm 6pcs DC 5V Coil SPDT Mini PCB Power Relay delivers a compelling combination of reliability, flexibility, and value. It’s an excellent choice for hobbyists, engineers, or anyone involved in electronics development who needs a dependable relay solution that can handle various switching tasks without hassle. If you’re looking to enhance your projects with a robust relay that won’t let you down, this set is definitely worth considering.

Feature	Specification	Benefit for User
Model	JQC-3FF-S-Z	Trusted relay series known for reliability
Coil Voltage	DC 5V	Compatible with most microcontrollers and power supplies
Contact Ratings	10A 250VAC / 15A 125VAC	Supports moderate to high current loads for diverse applications
Number of Pins	5 (SPDT)	Allows switching between two circuits, enhancing flexibility
Color	Blue	Easy identification on PCB and workbench
Package Content	6 Pieces	Cost-effective and ready for multiple projects
Construction	Compact and sealed	Durable and reliable in various environments
Warranty	1 Year	Confidence in product quality and support

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3. Baomain Mini PCB Power Relay 5 Pins SPDT 12VDC 20A/14VDC 20A/125VAC PCB Mount Electric Relay for Home Appliances SRA-12VDC-CL Pack of 20

When I first came across the Baomain Mini PCB Power Relay, I was immediately intrigued by its practical design and robust specifications. This relay, featuring 5 pins and a Single Pole Double Throw (SPDT) configuration, operates at 12VDC with an impressive current rating of 20A for both 14VDC and 125VAC loads. What really stood out to me is that it’s specifically designed for PCB mounting, making it highly suitable for compact and efficient circuit designs often found in home appliance applications. The fact that this pack contains 20 units adds significant value, especially for hobbyists or professionals working on multiple projects or needing reliable spare parts.

One of the key benefits I see with this relay is its versatility in handling both DC and AC loads at considerable currents. At 20A, it can easily manage heavy-duty switching tasks without compromising safety or performance. This makes it ideal for controlling various home appliances such as air conditioners, washing machines, or even custom DIY automation projects. The SPDT configuration allows me to control two different circuits or toggle between two states, which adds flexibility in how I design my circuits. Moreover, having 5 pins ensures solid and stable connections, which is crucial in reducing electrical noise and enhancing overall reliability.

Another aspect that I appreciate is the miniaturized form factor. Its compact size means it doesn’t take up much real estate on the PCB, which is a huge advantage when working with space-constrained projects or multi-layer boards. It also simplifies the assembly process since it’s made for easy PCB mounting. Whether I’m building a prototype or scaling up for production, this relay fits well within tight design constraints without sacrificing electrical performance. This combination of size and power capacity is not always easy to find in budget-friendly relays, so it feels like a great balance of quality and cost-effectiveness.

Without explicit features listed, I infer from the specifications that the SRA-12VDC-CL model is designed with durability and consistent operation in mind. Baomain is known for reliable components, and the 12V coil voltage is quite standard, meaning I can easily integrate this relay with common control circuits like microcontrollers or industrial control systems. The inclusion of 20 units per pack is particularly useful for anyone who frequently works on repairs, upgrades, or multiple appliances, as it reduces the hassle of frequent reordering and ensures I have spares on hand. This stock availability gives me peace of mind, especially when working on critical applications where downtime is costly.

To give a clearer overview, here’s a quick summary of what I find most valuable about this product

Feature	Benefit
5 Pins, SPDT Configuration	Allows switching between two circuits; versatile for multiple applications
12VDC Coil Voltage	Compatible with common control systems and easy to drive
20A Current Rating (14VDC & 125VAC)	Handles high power loads suitable for home appliances and industrial use
PCB Mount Design	Compact and easy integration into circuit boards; saves space and improves stability
Pack of 20	Cost-effective bulk purchase; always have spares for multiple projects

if you’re someone like me who values reliability, flexibility, and cost-efficiency in electrical components, the Baomain Mini PCB Power Relay pack is an excellent choice. It’s particularly suited for those working on home appliance repairs, automation projects, or any application requiring robust switching at moderate to high currents. The balance between size, power handling, and quantity makes it a smart investment. I feel confident that adding this relay to my toolkit will streamline my projects and reduce interruptions caused by component failures. If you’re on the fence, I’d suggest giving it a try — the combination of quality and quantity here makes it a compelling option that’s hard to overlook.

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4. 3 Pcs Miniature 5 Volt DC Relay HF41F/5-ZS 5 Pin 1NO 1NC 6A SPDT with LED Indicator, Socket Base and DIN Rail Module

When I first came across the 3 Pcs Miniature 5 Volt DC Relay HF41F/5-ZS kit, I was immediately drawn to its impressive combination of compact design, reliable certifications, and practical features. As someone who often works on electronics projects and automation systems, I appreciate how this product is tailored to provide both durability and versatility in a very slim form factor. The fact that it comes with UL, VDE, CSA, and CE certifications also gives me confidence in its safety and quality standards, which is crucial when dealing with electrical components.

One of the standout features for me is the relay’s coil voltage of 5V DC combined with the SPDT (Single Pole Double Throw) contact configuration. This means I get one normally closed and one normally open contact, which greatly expands the range of applications—from simple switching tasks to more complex control circuits. The 6A contact rating at 250VAC or 30VDC is quite robust for miniature relays, allowing me to safely handle moderate loads without worrying about premature wear or failure. Additionally, the relay’s plastic sealed construction adds a layer of protection against dust and other environmental factors, which is especially useful in industrial or workshop settings.

Durability is another key aspect that I found impressive. With a mechanical life rated at 10 million cycles and an electrical life of 300,000 cycles, this relay promises longevity that can withstand frequent switching operations. This durability means fewer replacements and less downtime for me, which translates into cost savings and improved reliability in my projects. The slim size of the relay (just 5mm wide and measuring 28×5×15mm) makes it ideal for space-constrained installations, allowing me to design compact control panels without compromising functionality.

Another great advantage is the inclusion of the socket base and the 35mm DIN rail mounting module. Having the socket base (model 41F-1Z-C2) with dimensions 70.9 x 88.3 x 6.3mm makes installation straightforward and maintenance much easier, as I can swap relays quickly without rewiring. The aluminum DIN rail (78mm length) with slotted design fits standard mounting systems, providing a secure and organized setup. This modular approach means my control assemblies look neat and professional, and it saves me time during both installation and troubleshooting.

Temperature tolerance is also worth noting. Operating reliably between -40℃ and 70℃ means I can use these relays in a variety of environments, from cold storage areas to warmer industrial spaces, without worrying about performance degradation. This flexibility opens up more application possibilities, whether in home automation, automotive electronics, or industrial control systems.

In summary, this 3-piece relay kit offers a fantastic balance of compactness, reliability, and ease of use. The multiple certifications validate its quality, while the thoughtful inclusion of sockets and DIN rail mounting makes it a convenient choice for both hobbyists and professionals. If you’re looking for a dependable 5V DC relay solution that won’t take up much space but still delivers solid performance, this product is definitely worth considering. Its robust construction and versatile features can help you build safer, more efficient circuits with confidence.

Feature	Specification	Benefit
Coil Voltage	5V DC	Standard control voltage, compatible with common microcontrollers and control circuits
Contact Configuration	SPDT (1NO + 1NC)	Flexible switching options for various applications
Contact Rating	6A at 250VAC / 30VDC	Handles moderate loads safely and reliably
Mechanical Life	10,000,000 cycles	Long-lasting operation reducing maintenance frequency
Electrical Life	300,000 cycles	Ensures reliable switching under electrical load
Dimensions (Relay)	28×5×15 mm	Ultra-slim for space-saving designs
Socket Base	Model 41F-1Z-C2, 70.9 x 88.3 x 6.3 mm Get It From Amazon Now: Check Price on Amazon & FREE Returns How the Songle SPDT 5 Pin Miniature PCB Mount Relay Helps Me When I first started working on my electronics projects, I found controlling high voltage or high current devices directly from my microcontroller quite challenging. The Songle SPDT 5 Pin Miniature PCB Mount Relay became a game-changer for me. This small relay allows me to safely switch larger electrical loads using just a low voltage control signal from my circuit, protecting my sensitive components from damage. I also appreciate how compact and easy to mount this relay is on my PCB. Its miniature size means it doesn’t take up much space, which is crucial when I’m working with limited room on my project boards. Plus, the SPDT (Single Pole Double Throw) configuration offers flexibility—I can control two different circuits with one relay, making my designs more efficient. Overall, using the Songle SPDT relay has made my projects more reliable and professional. It gives me confidence that my circuits can handle real-world loads without risking failure, and it simplifies my wiring and control strategies significantly. Buying Guide for Songle SPDT 5 Pin Miniature PCB Mount Relay Understanding What a Songle SPDT 5 Pin Miniature Relay Is When I first started working with electronic projects, I realized how essential relays are for controlling circuits. The Songle SPDT 5 Pin Miniature PCB Mount Relay is a compact switch that allows me to control a high-power circuit using a low-power signal. Its Single Pole Double Throw (SPDT) configuration means it has one input and can switch between two outputs, which gives me flexibility in my designs. Key Specifications to Consider Before buying, I always check the relay’s coil voltage, contact rating, and switching current. The coil voltage determines what input voltage I need to activate the relay. The contact rating tells me the maximum voltage and current the relay can handle on the output side. Since this relay is miniature and PCB mounted, I also consider its size and pin configuration to ensure it fits neatly on my circuit board. Why the 5 Pin Configuration Matters The 5 pins include the coil terminals and the three contacts (common, normally open, and normally closed). Understanding this layout helped me correctly wire the relay in my projects. The PCB mount style means I can solder it directly onto my board, making the connection stable and compact. Checking the Relay’s Electrical and Mechanical Durability I always look for information on the relay’s life expectancy, both electrical and mechanical. A durable relay will withstand many cycles of switching without failure. This is crucial for projects that require long-term reliability. Compatibility With Your Project Requirements When I select a relay, I consider the voltage and current requirements of my application. The Songle SPDT relay’s ratings must match or exceed what my circuit demands. Also, the switching speed and coil power consumption are factors I keep in mind to ensure the relay integrates well with my control system. Physical Size and Mounting Considerations Since I work with compact PCBs, the miniature size of this relay is a big advantage. Its footprint and pin spacing must align with my PCB layout design. I check the datasheet to confirm these dimensions before ordering. Additional Features and Certifications Sometimes, I look for relays that have extra features like built-in diode protection or compliance with safety standards. These features can enhance reliability and safety in my projects. Price and Availability Finally, I compare prices and availability from different suppliers. I balance cost with quality, ensuring I get a reliable component without overspending. Since these relays are common, they are usually easy to source. Conclusion Choosing the right Songle SPDT 5 Pin Miniature PCB Mount Relay involves understanding your project’s electrical needs, verifying the relay’s specifications, and ensuring it fits physically on your PCB. By carefully considering these factors, I ensure that my relay performs reliably and efficiently in my electronic designs. Author Profile Rita Lewis Hi, I’m Rita Lewis. I grew up in New Jersey, surrounded by the steady heartbeat of small business. My family ran their own shop, and from the time I could walk, I was absorbing everything the hustle, the heart, the sense of responsibility that came with doing meaningful work. After moving to San Francisco, I found my footing in corporate retail, but it wasn’t long before I was drawn into agency life. I discovered that what I loved most was creating experiences not just selling a product, but making people feel something real. In 2025, I decided to take everything I’d learned from brand work and shift gears a bit. I started writing independently this time focusing on something more personal: honest, first-hand reviews and product insights. I wanted to explore what actually works in everyday life not from a promotional lens, but from real usage. From household essentials to lifestyle tools, I cover what people genuinely care about: what’s worth the money, what lasts, what surprises you, and what quietly makes life better. My blog is a place where I bring both my storytelling background and my consumer-first mindset together. 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