Jaycar 4-Pin 0.156" Straight Locking Header with Crimp Pins – 3.96mm Pitch

You're wiring a switchmode PSU output or a PCB power feed and the last connector you used wobbled loose mid-test. This 4-pin straight locking header grips and stays put. Rated at 250V, 7A AC/DC, with crimp pins that hold 2.85kg pull-out force. End-to-end stackable, so you can daisy-chain runs without a separate coupler. Nylon housing carries a UL 94V-2 rating and the contacts work from -40°C to 105°C. Twenty-five mating cycles before you need to swap it out. Grab the pin count you need, crimp, lock, done. Add to cart and get back to the bench

• 4-pin straight locking header, 3.96mm (0.156") pitch with included crimp pins
• Contact rating: 250V @ 7A AC/DC – suited to switchmode PSU and PCB power connections
• Wire pull-out force 2.85kg; unmating force 150g for a secure, repeatable lock
• End-to-end stackable for daisy-chained power runs without extra couplers
• Nylon housing, UL 94V-2 rated; operating temperature -40°C to 105°C
• Durability: 25 mating cycles