G5V-1 Low Signal Relay 6-Pin 1A – 3V 5V 9V 12V 24V DC
G5V-1 Low Signal Relay 6-Pin 1A – 3V 5V 9V 12V 24V DC
G5V-1 Low Signal Relay – 6-Pin SPDT, 1A, Multiple DC Voltages
The G5V-1 Low Signal Relay is a compact, high-performance single-pole double-throw (SPDT) relay designed for low-signal switching applications. Available in multiple coil voltages — 3VDC, 5VDC, 9VDC, 12VDC, and 24VDC — this versatile relay fits a wide range of electronic circuits, from hobbyist projects to professional PCB designs. With one normally open (NO) and one normally closed (NC) contact (6-pin configuration) and a 1A switching capacity, it delivers reliable signal control in a small, efficient footprint.
Made in Mainland China.
Key Features
- Multiple Coil Voltages: Choose from 3VDC, 5VDC, 9VDC, 12VDC, or 24VDC to match your circuit requirements
- SPDT Contact Configuration: One normally open (NO) and one normally closed (NC) contact for flexible switching
- 6-Pin Through-Hole Design: Easy PCB mounting for clean, secure integration
- 1A Switching Capacity: Ideal for low-signal and logic-level control applications
- Compact Form Factor: Dimensions of 12.5mm (L) × 7.5mm (W) × 10mm (H) — fits space-constrained board layouts
- Low Signal Sensitivity: Engineered for reliable switching even at low input signal levels
- Durable Construction: Built for long operational life in a variety of electronic environments
Specifications
| Model | G5V-1 |
| Available Coil Voltages | 3VDC, 5VDC, 9VDC, 12VDC, 24VDC |
| Contact Type | SPDT (1 NO + 1 NC) |
| Pin Count | 6-Pin |
| Switching Current | 1A |
| Dimensions | 12.5mm × 7.5mm × 10mm |
| Mounting Type | Through-Hole (PCB Mount) |
| Origin | Mainland China |
Common Applications
- Microcontroller and Arduino/Raspberry Pi signal switching
- PCB-based automation and control circuits
- Telecommunications and signal routing equipment
- Consumer electronics and home automation projects
- Industrial low-signal control panels
Safety & Standards Reference
For best practices in electrical component safety and handling, refer to the U.S. Consumer Product Safety Commission (CPSC) guidelines on electrical components and devices.
Frequently Asked Questions
Q: What is the difference between the G5V-1 coil voltage variants (3V, 5V, 9V, 12V, 24V)?
A: The coil voltage determines what DC voltage is required to energize (activate) the relay. For example, the G5V-1-5VDC requires a 5V DC signal to switch, making it ideal for 5V microcontroller projects, while the G5V-1-12VDC is better suited for 12V power supply systems. The contact switching capacity (1A) remains the same across all variants.
Q: What does SPDT (one open, one close) mean for this relay?
A: SPDT stands for Single Pole Double Throw. This means the G5V-1 relay has one common (COM) terminal that connects to either a normally open (NO) contact or a normally closed (NC) contact depending on whether the relay coil is energized. This allows you to switch a circuit on or off, or alternate between two circuit paths.
Q: Is the G5V-1 relay compatible with Arduino or Raspberry Pi projects?
A: Yes — the G5V-1-5VDC variant is particularly popular for Arduino and Raspberry Pi projects, as it can be triggered directly from a 5V GPIO output (using a transistor driver circuit for proper current handling). The relay's compact 6-pin PCB footprint makes it easy to integrate into custom circuit boards.
Q: What are the physical dimensions of this relay?
A: The G5V-1 relay measures 12.5mm (length) × 7.5mm (width) × 10mm (height), making it one of the more compact through-hole signal relays available, well-suited for space-constrained PCB designs.