JST SM 2-Pin Connector Pair (Male + Female) with 15cm Wire - 2.54mm Pitch

Specifications

• Connector Type: JST-SM (2-Pin).

• Pitch: 2.54mm.

• Wire Length: ~15cm per side (Total ~30cm when mated).

• Wire Gauge: 22AWG - 24AWG (Standard).

• Current Rating: 3A AC/DC.

• Voltage Rating: 250V AC/DC.

• Locking Mechanism: Friction Latch.

Compatibility & Platform Support

• LED Strips: Direct Fit. Fits standard 3-pin and 2-pin JST-SM connectors found on WS2812B, WS2811, and generic LED reels.

• Batteries: Commonly used on small Li-Ion packs and EL Wire inverters.

Key Applications & Projects

• LED Installations: Joining two segments of LED strip around a corner.

• Quick Disconnects: Adding a power plug to a 3D printer fan or sensor.

• Automotive: Low-current interior lighting connections.

Virtual Technician: Wiring & Safety ⚠️

• Housing vs Pins:

  • Male Housing (Receptacle): Has pins inside. Usually on the "Source" side.

  • Female Housing (Plug): Has sockets inside. Usually on the "Load" side.

• Color Code: Red is usually Positive (+), Black is Negative (-). Always double-check polarity before plugging in, especially if mixing brands of LED strips!

Accessories

• Included in the Package:

  • 1 x JST-SM 2-Pin Male Connector with Wire

  • 1 x JST-SM 2-Pin Female Connector with Wire

Frequently Asked Questions (FAQ)

1. Is this the connector for Neopixels? Yes, WS2812B strips typically use JST-SM connectors. (Note: WS2812B often uses the 3-Pin version, but simple power injection or 2-wire LEDs use this 2-Pin version).

2. What is the wire gauge? It is typically 22AWG or 24AWG, suitable for up to 3 Amps.

3. Does it lock? Yes, it has a plastic tab that clicks to lock the two halves together.

4. Are the wires copper? Yes, tinned copper strands.

5. What is the "Pitch"? The distance between pins is 2.54mm, similar to a breadboard header, but the housing is bulky and won't fit into a breadboard.

6. Can I use this for 12V? Yes, it is rated for up to 250V, so 12V or 24V is fine.

7. Is it waterproof? No. For waterproof connections, you need "JST Waterproof" (the round nut type).

8. Which side is Male/Female? In JST-SM terms, the housing with the Latch is the Plug (Female terminals), and the housing with the Catch is the Receptacle (Male pins).

9. Can I crimp these myself? These come pre-crimped with wire. If you want to crimp your own, you need to buy the housing and terminals separately.

10. How long is the total length? Connected together, the total wire length is approximately 30cm.

11. Can I use it for a LiPo battery? Yes, for low-current applications (<3A). For high-current drones, use XT30 or XT60.

12. Is this "Aerial Docking"? "Aerial Docking" is just a translated term for "Free-hanging wire-to-wire connector". It's the same thing.

13. Why is it called SM2.54? SM is the series name from JST (Japan Solderless Terminal). 2.54 is the pin pitch.

14. Will this fit a fan header on a PC? No, PC fans use Molex KK or KF2510 connectors. They look similar but are not compatible.

15. Can I disconnect it easily? Yes, just press the latch lever and pull.

16. Are the ends stripped? Yes, the wire ends are usually stripped and tinned.

17. What happens if I reverse the polarity? The connector is keyed, so you can't plug it in backwards. However, you must ensure you soldered Red to Red and Black to Black correctly.

18. Can I use this for audio? Yes, for small speakers, but not for high-fidelity signals as it's not shielded.

19. Is it flame retardant? The housing is usually Nylon 66, UL94V-0 rated.

20. Why is my strip 3-pin but this is 2-pin? Addressable strips (Data, V+, GND) need 3-pin JST-SM. This 2-pin version is for simple Power/Ground connections or single-color strips.