2.00mm Pitch High Current 3A Female Header Connector Dual Row 2x20 Power PCB Socket

Two millimetre pitch saves board space but traditionally costs current capacity, because a smaller contact has less metal and less surface to dissipate heat. This 2.00mm high current female header recovers that capacity with a thicker 0.25mm phosphor bronze spring and a dual finger contact geometry, reaching 3A per contact in the footprint that normally carries 1.5A. For a compact board that needs to move motor or LED current, that difference can remove a separate terminal block from the design.

The insulator is PA9T rather than the usual nylon, because power contacts run warmer and nylon softens and creeps at the temperatures this part reaches under load. Cells are moulded with wider separation so heat leaves the pin field instead of soaking into the housing, and the contact springs are tuned to keep insertion force manageable even though normal force is higher. Gold flash over nickel protects the interface from the sulphur compounds common in industrial air.

• 3A per contact at 2.00mm: Thicker 0.25mm spring and dual finger geometry double the capacity of a standard 2mm socket.
• Dual finger contact: Two independent springs maintain normal force if one relaxes, improving reliability under vibration.
• PA9T high temperature body: Resists softening and creep at the temperatures power contacts reach under load.
• Open cell heat path: Wider moulded spacing lets heat leave the pin field instead of soaking into the insulator.
• Compact 2.00mm footprint: Delivers power in the space normally reserved for signal level connectors.
• Gold flash over nickel: Protects the interface against sulphur compounds found in industrial and rubber sealed enclosures.

Compact high current headers are used where a small board must move real power without a screw terminal. LED driver boards use them to bridge driver and light engine sections, motor control boards use them to hand phase current to a power stage, and small battery management boards use them to bring cell harness current onto the measurement circuit. They also appear in portable tools, in heated garment controllers and in compact medical devices where a 2.54mm connector either will not fit or is unnecessarily large.

We can tune the contact to your current profile: a 4A variant with thicker plating is produced on request, and mixed layouts with power pairs plus signal positions are common. Positions from 2 x 2 to 2 x 20 are cut from strip without tooling charges. Optional features include a polarising wall to prevent reversed power insertion, a keyed first position, gold at 0.76 micron for high reliability programmes, and a locating peg for automated placement. Engineering supplies a current derating curve based on your ambient temperature and board copper area.

Each connector is counted into anti-static shielding bags with a desiccant sachet and a humidity indicator card, then packed into export-grade corrugated cartons carrying the CNJWY neutral label. Inner foam inserts keep the contact field clear of the carton wall, and carton gross weight is held under 15 kg so that air freight handling limits are respected. Sea freight shipments are palletised, stretch wrapped and strapped against container humidity. Own-brand labels, barcoded cartons and drop tested inner boxes can be supplied for distributors, and every lot ships with a dimensional report, a plating thickness certificate and a RoHS declaration taken from the same production batch.