
JST PA 4P 2.0mm TH header is a close mechanical candidate needing PH-series checks.
B4B-PH-K-S(LF)(SN) is a JST PH 4-position 2.0mm through-hole header. No listed candidate is proven pin-compatible.
Most kept parts meet or exceed 2A and 100V.
TH pitch matches, but footprint is unverified.
Passive connector; no firmware impact.
Some lifecycles are unknown.
No pin-compatible replacement is verified from the provided fields.
Review 4P 2.0mm TH candidates first, then confirm PH mating, footprint, and cable exit.
Mechanical mating and footprint are not proven.

JST PA 4P 2.0mm TH header is a close mechanical candidate needing PH-series checks.
| Feature / factor | B4B-PH-K-S(LF)(SN) | B04B-PASK-1(LF)(SN) | WF-1A200A4P | ZX-HY2.0-4PZZ | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole | Through Hole | - | - | Through Hole — mount type matches |
| Pinout | 4P 1-row | 4P 1-row | - | - | 4P rows missing — row data absent |
| Voltage | 100 V | 250 V | - | - | 250 V — rating higher |
| Current | 2 A | 3 A | - | - | 2 A — rating matches |
| Application | JST PH | JST PA | - | - | JST PA — mating may differ |
| Temperature | missing | - | -25C to 85C | - | -25C to 85C — target absent |
| Lifecycle | Active | - | - | - | — |
B04B-PASK-1(LF)(SN), ZX-HY2.0-4PZZ, and WF-1A200A4P are review candidates, not verified drop-ins.