Obsolete – Sourced Through Independent Channels
JST lists this part as Obsolete. No direct pin-compatible replacement has been announced by the manufacturer. If you are reviewing a BOM line that calls out B26B-PHDSS, the board footprint is 2.00 mm pitch, 26 positions, dual-row with 2.00 mm row spacing. A functional replacement would require matching those dimensions plus the detent lock feature and the 8.8 mm stack height.
Detent Lock and Shrouded Housing
The detent lock engages with a positive click when the header is mated to the PHD receptacle – no secondary hardware needed. The 4-wall shroud prevents the pins from bending if the receptacle is inserted at an angle, which is common in harness assembly where the cable is already dressed.