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Hirose Electric Co Ltd BM20B(0.8)-50DP-0.4V(51) — Mezzanine & Stacking Connectors

Hirose BM20B(0.8)-50DP-0.4V(51) Header, 50 Pos, 0.40mm Pitch

MPNBM20B(0.8)-50DP-0.4V(51)
Active

Hirose BM20 series header, outer shroud contacts, 50 positions, 0.40mm pitch, 2 rows, gold plating, 0.8mm stacking height, surface mount, solder retention.

$1.4700Ref. price · indicative, final on quote
RoHSRoHS Compliant
SeriesBM20
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent supplier — new & surplus connector stock· Listing updated Aug 2026

Specifications

BM20B(0.8)-50DP-0.4V(51) specifications
ParameterValue
SeriesBM20
MountingSurface Mount
Connector typeHeader, Outer Shroud Contacts
Height above board0.026\" (0.65mm)
Mated stacking heights0.8mm
Pitch0.016\" (0.40mm)
PackageTape & Reel (TR) Cut Tape (CT)
FeaturesSolder Retention
Contact finishGold
Rows2
Positions50
Contact finish thickness2.00µin (0.051µm)

Product details

The Hirose BM20B(0.8)-50DP-0.4V(51) is a 50-position header with outer shroud contacts from the BM20 series, designed for board-to-board mezzanine stacking at a mated height of 0.8mm. The 0.016" (0.40mm) pitch packs 50 circuits into a dual-row footprint that suits compact handheld and portable device PCBs where every millimeter of board real estate is allocated.

The 0.026" (0.65mm) height above board keeps the component profile low for tight enclosures.

Frequently asked questions

Where can I buy the Hirose BM20B(0.8)-50DP-0.4V(51) connector?

Submit a request for quote to confirm current availability and pricing for your BOM quantity.

What is the stacking height of the BM20B(0.8)-50DP-0.4V(51)?

The mated stacking height is 0.8mm, which sets the z-axis clearance between the two PCBs in a mezzanine stack.