The Molex 430451602 is a 16-circuit right-angle male header from the Micro-Fit 3.0 43045 series, designed for board-to-cable/wire interconnects in automotive, industrial, medical, and telecom equipment. It carries 8 A per contact at 600 V across a dual-row 3.00 mm pitch, with a 30.0 µ" gold mating interface that handles repeated mating cycles in corrosive or high-vibration environments. The shrouded 4-wall housing with locking ramp and board lock provides positive retention and shear-force resistance during assembly and field service.
Ratings and what they mean for the fit
The 8 A per-contact rating at 600 V is the headline power spec. The 3.00 mm pitch gives enough creepage for the 600 V rating. The 30.0 µ" gold on the mating side is a robust industrial-grade plating — not a flash-gold or tin surface. It supports hundreds of mating cycles without fretting corrosion, which matters for equipment that sees periodic disconnection during maintenance or reconfiguration. The tin-plated solder tails (100.0 µ") are standard for through-hole wave-solder processes. The -40°C to 105°C operating range and UL94 V-0 liquid crystal polymer housing confirm this header is rated for under-hood automotive and sealed industrial enclosures where flame retardance and thermal cycling are requirements, not options.
Mating and termination
This header mates with the matching Micro-Fit 3.0 receptacle housing (female, crimp-terminal style). The locking ramp on the 4-wall shroud engages the receptacle latch for an audible click — the connection stays mated under vibration without a secondary lock. The through-hole right-angle orientation places the mating face parallel to the PCB, suited for board-edge or low-profile enclosure layouts. Termination is solder to the PCB — the board lock feature holds the header in place during wave solder, preventing skew from the cable strain that follows in the harness assembly.
Sourcing and lifecycle
The 430451602 carries an Active lifecycle status with ROHS3 compliance. No official successor or cross-reference is on record — the Micro-Fit 3.0 series is a mature, broadly used platform, so the mating half and footprint are well established in existing BOMs.