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Molex Micro-Fit 3.0mm Connector Kit — Housings, PCB Headers & Crimp Terminals
The Molex Micro-Fit 3.0mm Connector Kit provides a comprehensive assortment of industry-standard Micro-Fit connectors for high-reliability power and signal connections. Rated at 5A per contact / 600V AC/DC, the 3.0mm pitch Micro-Fit series is the trusted choice for server power rails, industrial power supplies, automotive harnesses, and robotics motor drivers worldwide.
Why Choose This Kit?
- ✅ All-in-one assortment — housings, PCB headers and crimp terminals in one pack, no separate sourcing needed
- ✅ 5A per contact / 600V — handles high-current power rails in a compact 3.0mm pitch footprint
- ✅ Dual-row up to 12 circuits — maximizes density for multi-rail power applications
- ✅ Positive latch lock — secure mating under vibration and mechanical stress
- ✅ PA66 nylon housing — high-temperature rated, UL recognized, RoHS2 compliant
- ✅ DIP and SMT headers included — compatible with through-hole and SMD PCB layouts
Kit Contents
- 43645-NN Receptacle Housings — Wire-side plug, 2–12 circuits, single & dual row
- 43650-NN PCB Headers — Top-entry through-hole and SMD vertical headers
- 43030 Crimp Terminals — AWG #20–#24, tin-plated, for 43645 housings
Key Specifications
- Pitch: 3.0mm | Circuits: 2–12 pin (single & dual row)
- Current rating: 5A per contact | Voltage: 600V AC/DC
- Wire gauge: AWG #20–#24 | Temperature: −40°C to +105°C
- Housing material: PA66 nylon | Contact: tin-plated copper alloy
- Compliance: UL recognized · RoHS2 compliant
Typical Applications
- Server, workstation and NAS power supply connections
- Industrial power supply and control panel wiring
- Automotive high-current wire harnesses and ECU power rails
- Robotics, CNC and motor driver power connections
- 3D printer heated bed and power distribution wiring
- LED driver and power module board connections

