The 3-Pin Slide Switch (SPDT) is a compact Single Pole Double Throw (SPDT) mechanical switch used to control the flow of current by sliding the actuator between two positions. It is widely used in Arduino projects, electronic circuits, battery-powered devices, DIY electronics, robotics, and PCB applications for ON/OFF switching and signal selection.
Features
- Full Name: 3-Pin SPDT Slide Switch
- Single Pole Double Throw (SPDT) configuration
- Two-position slide mechanism
- Compact PCB mount design
- Low contact resistance
- Long mechanical life
- Durable metal housing
- Easy soldering to printed circuit boards
Specifications
| Specification | Value |
|---|---|
| Product Type | Slide Switch |
| Switch Type | SPDT (Single Pole Double Throw) |
| Number of Pins | 3 |
| Positions | 2 (ON-ON) |
| Mounting Type | Through-Hole PCB Mount |
| Contact Material | Copper Alloy |
| Housing Material | Metal |
| Rated Voltage | Up to 50V DC |
| Rated Current | 0.5A (Typical) |
| Operating Temperature | -20°C to +85°C |
Pin Configuration
| Pin | Description |
|---|---|
| Pin 1 | Terminal A |
| Pin 2 | Common (COM) |
| Pin 3 | Terminal B |
Note: The center pin is the Common (COM) terminal. Sliding the switch connects the common terminal to either Pin 1 or Pin 3.
Applications
- Arduino projects
- ESP32 and Raspberry Pi projects
- Battery-powered devices
- Power ON/OFF switching
- Signal selection circuits
- DIY electronics
- Robotics
- Prototype circuit design
- Educational electronics projects
Advantages
- Compact size
- Reliable switching operation
- Low contact resistance
- Long mechanical life
- Easy PCB mounting
- Durable construction
- Cost-effective
Size
| Specification | Value |
|---|---|
| Body Dimensions | Approx. 9 × 3.5 × 6 mm |
| Pin Pitch | Approx. 2.54 mm |
| Weight | Approx. 1 g |
Package Includes
- 1 × 3-Pin SPDT Slide Switch
Note: This switch is suitable for low-voltage and low-current applications. Ensure the connected load does not exceed the rated voltage and current to maintain reliable operation and extend the switch’s lifespan.



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