The JST B4B-PH-TW-S is a 4-position plug-to-plug adapter from the PH series, designed for in-line cable-to-cable or cable-to-board harness connections where you need to join two male-header-compatible terminations. This is not a PCB-mount header; it's a free-hanging adapter that accepts male pins on both ends, so it acts as a gender-changer within a PH-series harness.

JST B4B-PH-TW-S PH Series 4-Position 2.00mm Pitch
MPNB4B-PH-TW-S
Active
JST PH series, B4B-PH-TW-S, 4-position plug-to-plug adapter, 0.079" (2.00mm) pitch, 1 row, free-hanging (in-line), bulk package.
$0.5400Ref. price · indicative, final on quote
RoHSRoHS Compliant
SeriesPH
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
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Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | PH |
| Mounting | Free Hanging (In-Line) |
| Pitch | 0.079\" (2.00mm) |
| Package | Bulk |
| Rows | 1 |
| Positions | 4 |
| Convert to (Adapter end) | Plug, Male Pins |
| Convert from (Adapter end) | Plug, Male Pins |
Product details
Frequently asked questions
Does B4B-PH-TW-S have a replacement or equivalent?
The closest functional equivalent is the lead-free variant B4B-PH-TW-S(LF)(SN), which shares the same 4-position, 2.00 mm pitch, and free-hanging body. For a different position count, consider the 2-position B2B-PH-TW-S or 6-position B6B-PH-TW-S(LF)(SN) in the same PH series.