The TE MTA-100 3-640442-5 is a 5-position, single-row receptacle from the MTA-100 series, terminated via IDC to 26 AWG discrete or ribbon cable. The locking ramp holds the mate against vibration, which matters when this connector lives inside an industrial cabinet or a home appliance that sees shipping or fan vibration. The blue housing is a visual cue on the harness: if you're doing field replacement, you spot the color before you pull the wrong connector.
Wiring and Termination Reality
IDC termination means this is a factory or bench operation — you don't field-strip and crimp individual wires. The connector accepts 26 AWG wire in either discrete or ribbon cable form. The closed-end feature means the IDC slots stop at the last position; there's no daisy-chain pass-through on the far side. For harness builders: plan the cable routing before termination because the IDC is permanent — no rework if you misroute.