The Molex 0447641202 is a 12-circuit, dual-row receptacle from the Micro-Fit 3.0 BMI 44764 series, designed for board-to-board or cable-to-board interconnects. It uses a 3.00 mm pitch and a through-hole right-angle mounting orientation, making it a natural fit for board-edge or mezzanine layouts where the connector runs parallel to the PCB. Rated at 5 A per circuit with a 600 VAC voltage rating, it carries enough headroom for power distribution within a telecom or general-purpose enclosure. The mating-side contacts are plated with 15.0 µ" gold, which gives it a solid cycle life for field-serviceable connections, while the solder posts get a 100.0 µ" tin finish — a standard split that keeps cost down where the wear isn't.
What the key ratings mean for your fit
The 3.00 mm pitch is the defining footprint dimension — it matches the Micro-Fit 3.0 system and gives enough creepage for the 600 VAC rating without forcing an oversized board layout. The 5 A per-circuit rating is the headline current, but the real duty limit depends on the number of circuits powered simultaneously and the ambient temperature inside the enclosure; the -40°C to 105°C operating range covers most industrial and telecom cabinet environments. The 15.0 µ" gold on the mating interface is what governs reconnect reliability — it's rated for repeated mating cycles without the fretting corrosion you'd see on a tin-to-tin interface in a vibration-prone assembly. The right-angle through-hole termination means the receptacle sits flush against the board edge, which is useful when the mating header comes in parallel to the PCB plane.
Mating and sourcing
This receptacle mates with the matching Micro-Fit 3.0 BMI header — the blind-mating feature and board guides on this series help align the pair during assembly, which is a practical advantage in a blind-mate backplane or panel-feed application. The push-pull fastening type means no secondary locking hardware; the latch on the header side holds the pair together.
Compliance and construction
The 0447641202 carries an Active lifecycle status — no end-of-life notice on record. The housing is molded from liquid crystal polymer (LCP) glass-filled, rated UL94 V-0, which is the standard for equipment inside an enclosure requiring flame retardance. ROHS3 compliant per the manufacturer. Contacts are phosphor bronze, a common choice for spring-beam reliability in a power interconnect.