
JST's B6B-PH-K-S(LF)(SN) is the original PH series header, offering strong compatibility but with a narrower temperature range.
The PH-6A is a 6-pin, 2.0mm pitch straight header for through-hole PCB mounting. Alternatives from JST and other manufacturers offer similar functionality, but require verification of mechanical dimensions and operating temperature.
Voltage and current ratings are generally matched or better.
While parts are straight TH headers, exact housing dimensions must be verified from datasheets.
Direct replacement for PH-6A should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Use JST B6B-PH-K-S(LF)(SN) if the narrower temperature range is acceptable, as it is the original brand-name part.
The primary risk is the narrower operating temperature range of alternatives. A secondary risk is minor mechanical differences in clone parts.

JST's B6B-PH-K-S(LF)(SN) is the original PH series header, offering strong compatibility but with a narrower temperature range.
| Feature / factor | PH-6A | B6B-PH-K-S(LF)(SN) | ZX-HY2.0-6PZZ | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole, Straight | Through Hole, Straight | - | Through Hole — Matches target mounting style. | |
| Pitch | 2.00mm | 2.0mm | - | 2.0mm — Matches target pin pitch. | |
| Voltage | 100V | 100V | - | 250V — Higher voltage rating is acceptable. | |
| Temperature | -40°C to +105°C | -25°C to +85°C | - | Not specified — Operating temperature must be verified from datasheet. |
Verified drop-in options for PH-6A are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.