Wiring a 10-Position PCB Terminal Block at 5 mm Pitch
The TE Connectivity Buchanan 1-796683-0 is a 10-position, single-level PCB-mount terminal block on 0.197" (5.00 mm) pitch. The green polyamide (PA66) housing carries a rising cage clamp termination — the screw pushes a nickel-plated brass clamp down onto the stripped wire, not the conductor itself, so the wire isn't nicked or deformed. It's rated 17.5 A per position at 300 V, with a wire range from 12 AWG down to 30 AWG. The M3 screw has a specified torque of 0.79 Nm (7.0 Lb-In), which is the number to hit with a torque driver — under-torque leaves a high-resistance joint, over-torque strips the threads in the nylon. The side-entry (horizontal with board) orientation means the wire enters parallel to the PCB, so the block sits flush along the board edge. The interlocking side feature lets you gang multiple blocks side-by-side without gaps — useful when you need more than 10 positions on the same pitch. The contact is brass with tin plating, which is standard for a screw-clamp terminal block where the connection is mechanical, not dependent on mating cycles.