What this 4-pin CP-3.3 header is built for
The 2122100041: This is a 4-position, dual-row male header from the Molex CP-3.3 series, with a 3.30 mm mating pitch and 4.14 mm row spacing — the footprint is set for a compact board-to-wire connection that doesn't waste PCB real estate. The shrouded 4-wall design and latch holder fastening mean the mating receptacle locks positively, not just a friction fit — important for equipment that sees vibration or where the cable is routinely handled.
Sourcing and lifecycle — still in active production
No stock-holding claim — quoted per RFQ.
Mating and termination — what connects and how
This header mates with CP-3.3 receptacle housings (same series) that accept 20-24 AWG crimp terminals. The post length is 0.132" (3.35 mm), suitable for standard 1.6 mm PCBs.
Compliance and material — what the approvals mean
Housing is glass-filled nylon (PA) rated UL94 V-0 — the highest flame-retardant grade for connectors inside equipment enclosures where flammability is a safety requirement. Glow wire compliant per the feature listing, which means the material passes the glow-wire ignition test (typically 750°C or 850°C) — required for household appliances and lighting products sold in IEC markets.