BM20B(0.6)-30DP-0.4V(51)

The BM20B(0.6)-30DP-0.4V(51) is a 30-position, 0.4mm pitch surface mount header from the Hirose BM20 series. It is designed for board-to-board and board-to-FPC connections in compact, space-constrained applications. The connector features a 2-row configuration with outer shroud contacts and gold contact finish (2µin / 0.051µm) for reliable signal integrity.

Key electrical specifications include a rated current of 0.3A, rated voltage of 30V AC/DC, contact resistance of 100mΩ max, and insulation resistance of 50MΩ min at 100V DC. The operating temperature range spans -35°C to 85°C, with storage temperature range of -10°C to 60°C. The mated stacking height is 0.6mm, with an effective mating length of 0.15mm at that height.

Mechanically, the connector is surface mount (SMD) and has a height above board of 0.5mm. The design incorporates guide ribs for enhanced mating operations and a tactile click indication. The BM20 series offers a debris-resisting design that covers contacts when mated, reducing contamination risks. This connector is suitable for high-density mezzanine stacking in portable electronics, wearables, and other compact devices.