The TE Connectivity 8-917542-2 is a 4-position, single-row shrouded header from the Dynamic D-5200 series. It is a board-to-cable/wire interconnect — the male tabs on a 0.400" (10.16 mm) pitch mate with the corresponding Dynamic D-5200 receptacle housing and crimp terminals. The 30 A per-circuit rating at 630 V puts this squarely in the power distribution class, not signal-level duty. Gold plating on the mating interface (15.0 µin) and tin on the solder tails give it the cycle life for repeated field service connections in industrial control cabinets and general-purpose equipment enclosures.
What the ratings mean for the fit
The 10.16 mm pitch is the first thing to check against your board footprint. The 30 A per circuit is a per-contact maximum at the rated temperature rise.
Construction and environment
The housing is a glass-filled thermoplastic polyester rated UL94 V-0. The operating range of -55°C to 105°C covers most industrial cabinet and outdoor telecom environments.
Sourcing and lifecycle
The 8-917542-2 carries an Active lifecycle status from TE Connectivity — full production, no end-of-life notice. No official cross-reference or second-source equivalent is on record for this exact order code, so the BOM line should be specified against the TE part number. The Dynamic D-5200 series is a standard TE power interconnect family, so the mating receptacle and terminals are widely available through the same channel.