Mini SPDT Slide Switch 3-Pin 2-Position PCB Mountable

Specifications:

• Type: SPDT (Single Pole Double Throw)
• Positions: 2 (On-On)
• Pin Count: 3 Pins
• Pin Pitch: 2.54mm (Standard breadboard/PCB friendly)
• Rating: 0.5A @ 12V DC / 0.3A @ 50V DC
• Contact Resistance: ≤30mΩ
• Insulation Resistance: ≥100MΩ
• Mechanical Life: 10,000+ Cycles
• Mounting Type: Through-hole (DIP)

Key Applications

• Power Toggling: The perfect master power switch for Arduino, ESP32, and Raspberry Pi Pico projects.
• Signal Routing: Switch between two different sensors or logic inputs.
• User Interface: Create "Mode Select" switches for your DIY gadgets.
• Wearables: Small enough to be hidden in smart clothing or cosplay props.

Project Evolution

• Past Projects (Prerequisites): If you've been manually connecting and disconnecting battery clips or using breadboard jumpers as "switches," this is your next step toward a professional build.
• Feature Upgrade: Adding this switch moves your project from a "test setup" to a "finished product," preventing accidental battery drain and short circuits.
• Effort/Requirements: Beginner Level. Requires basic soldering skills and a PCB or perf-board for mounting.

Pin Mapping:

• Center Pin (Common): Connect your Input (e.g., Battery Positive).
• Outer Pins (L/R): Connect to your target circuits. Sliding the switch to one side connects the Center Pin to that specific Outer Pin.
• ⚠️ Safety Note: Ensure your current draw does not exceed 0.5A. For high-power motors, use this switch to trigger a Relay or MOSFET instead of switching the motor directly.

Package Includes:

1 x Mini SPDT Slide Switch 3-Pin 2-Position PCB Mountable

Frequently Asked Questions (FAQ)

1. Can I use this for 230V AC mains?
   No, this is strictly for low-voltage DC applications (max 50V).
2. Is it breadboard compatible?
   Yes, the pin pitch fits standard 2.54mm breadboards, though the pins are thin, so ensure a snug fit.
3. What is SPDT?
   It stands for Single Pole Double Throw, meaning one input can be switched between two different outputs.
4. Can I use it as a simple On/Off switch?
   Yes! Just connect the center pin and one of the outer pins. Leave the third pin disconnected.
5. Is it waterproof?
   No, this is an open-frame mechanical switch.
6. Can I use this for signal switching?
   Yes, it is excellent for routing low-current logic signals.
7. What happens if I exceed 0.5A?
   The internal contacts may arc and weld together, causing the switch to fail.
8. Is the lever plastic or metal?
   The lever is durable, high-impact plastic.
9. Are the pins pre-tinned?
   Yes, the pins are pre-tinned for easier soldering.
10. Does it have a center-off position?
    No, this is a 2-position switch (On-On).
11. Can it handle 3.3V logic?
    Absolutely, it works perfectly with 3.3V, 5V, and 12V systems.
12. How do I mount this to a panel?
    This is primarily a PCB-mount switch. For panel mounting, you would need a custom cutout or a bracket.
13. Is it heat resistant?
    The base is designed to withstand standard soldering temperatures (300°C for 3 seconds).
14. What is the spacing between pins?
    Exactly 2.54mm (0.1 inch).
15. Does the "click" feel firm?
    Yes, it has a distinct mechanical detent to prevent accidental sliding.
16. Can I use this with a Raspberry Pi?
    Yes, it's ideal for toggling GPIO pins or power.
17. Which pin is the common pin?
    The middle pin is always the common (COM) terminal.
18. Can I use this for audio signals?
    Yes, for low-level audio switching, though high-end audio may require shielded switches.
19. What is the insulation rating?
    100MΩ at 500V DC.
20. Is this RoHS compliant?
    Yes, our current stock meets standard lead-free requirements.