Dupont SM2.54 Wire to WIre Kit

Small locking wire-to-wire connector assortment for low-voltage 3D printer wiring. This SM2.54 / JST-SM-style kit gives you 2-, 3-, 4-, and 5-pin male/female housing pairs plus loose crimp terminals for making detachable signal and accessory leads.

Why use this instead of loose jumper housings?

• Wire-to-wire format: mating plug and receptacle housings let you disconnect fans, LEDs, sensors, panels, and small harnesses without pulling pins out of a board header.
• Locking housings: the SM connector family uses an arm-lock style shell for a more secure connection than plain Dupont jumper shells.
• Mixed sizes in one bag: includes the common 2-, 3-, 4-, and 5-position sizes used around printer electronics and small DC accessories.

Kit contents

• 2-pin male/female housing sets: 5 sets
• 3-pin male/female housing sets: 5 sets
• 4-pin male/female housing sets: 5 sets
• 5-pin male/female housing sets: 5 sets
• Crimp terminals: about 75 loose pins/sockets for assembly

Specifications

• Connector family: SM2.54 / JST-SM-style wire-to-wire crimp connector
• Pitch: nominal 2.5 mm SM series, commonly sold as 2.54 mm
• Positions included: 2P, 3P, 4P, and 5P
• Application: low-voltage signal, LED, fan, sensor, and accessory harnesses
• Reference rating for genuine JST SM series: up to 3 A and 250 V AC/DC with suitable wire and proper crimps

Good fit for

• 3D printer wiring harness repairs, detachable panels, LED wiring, fan extensions, and small DC accessory leads.
• Pair with 26AWG Stranded FEP Wire when you need heat-resistant signal wiring inside a printer enclosure.
• Need board headers instead? Use the JST-XH 2.54 230pc Kit. Need Dupont jumper shells and headers? Use the 1550 Piece 2.54mm Dupont Connector Kit.

Gotchas

• Not pre-crimped: you will need the correct crimp tool and wire.
• Not JST-XH: this is a wire-to-wire connector kit, not a PCB header/socket kit.
• Not for mains wiring: use proper rated power-entry and mains connectors for AC line voltage work.