Board Layout Fit for the 20-Position Header
The 0395021020: This is a 20-position, single-level terminal block header from the Molex Eurostyle ESE 39502 series. Through-hole solder termination gives a robust mechanical anchor — the 0.140" (3.56mm) contact tail length is standard for a 1.6 mm thick PCB.
Current, Voltage, and Temperature Ceilings
Rated 8 A per contact at 300 V under UL conditions. The 8 A figure is the per-contact current at a defined temperature rise — in practice, derate if the ambient inside the enclosure exceeds 105°C (the housing material limit).
Mating and Cross-Reference Notes
The base product number 039502 covers the series — the suffix identifies position count and orientation. No official pin-compatible alternative from Molex is listed; the closest functional match within the series would be a different position count or orientation variant.