
DEALON
A 4-pin, 2.5mm pitch, right-angle header with matching electrical ratings. Verify mechanical dimensions before use.
The JST S4B-EH(LF)(SN) is a 4-pin, 2.5mm pitch, right-angle through-hole header. When seeking alternatives, prioritize matching the right-angle mounting, pitch, and electrical ratings to ensure PCB compatibility.
PCB footprint and shrouded header dimensions must be verified from mechanical drawings.
For candidates with specified ratings, they generally match. Risk is high for parts with missing data.
Direct replacement for S4B-EH(LF)(SN) should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
DEALON XH-4PWB offers the closest parametric match but requires datasheet verification for mechanical footprint.
Mechanical mismatch is the primary risk. Many similar parts are straight-pin, not right-angle. Pinout and footprint must be identical.

DEALON
A 4-pin, 2.5mm pitch, right-angle header with matching electrical ratings. Verify mechanical dimensions before use.
| Feature / factor | S4B-EH(LF)(SN) | XH-4PWB | XH-4AW米色 | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Mounting Type | Through Hole, Right Angle | Right Angle, Through Hole | Through Hole, Right Angle | Right Angle, Through Hole / Through Hole, Right Angle — Matches target's side-entry orientation.; XH-4AW米色: Matches target's side-entry orientation. | |
| Pitch | 2.5mm | 2.5mm | 2.5mm | 2.5mm — matched; XH-4AW米色: matched | |
| Pin Count | 4 | 4 | - | 4 — matched | |
| Current | 3 A | 3.0 A | Missing | 3.0 A / Missing — matched; XH-4AW米色: Current rating must be verified from datasheet. | |
| Voltage | 250 V | 250 V | Missing | 250 V / Missing — matched; XH-4AW米色: Voltage rating must be verified from datasheet. | |
| Color | Natural / PA66 | - | Beige | Beige — Color differs from typical natural/white. |
Verified drop-in options for S4B-EH(LF)(SN) 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.