
DEALON
A 4-pin, 2.5mm pitch straight header with matching electrical ratings. Requires mechanical verification.
KH-XH-4A-Z is a standard 4-pin, 2.50mm pitch straight header. Several form-fit-function alternatives exist, but require verification of mechanical drawings and electrical ratings before substitution.
While pitch and positions match, the number of rows and exact footprint must be verified from datasheets to ensure PCB compatibility.
Several candidates match the 3A/250V rating, but some alternatives have missing or conflicting data that must be checked.
No direct drop-in replacement is confirmed. However, parts like XH-4PS and ZX-XH2.54-4PZZ-Y are strong candidates that match key electrical and physical specs, pending mechanical drawing verification.
form_fit_function
Mechanical Mismatch

DEALON
A 4-pin, 2.5mm pitch straight header with matching electrical ratings. Requires mechanical verification.
| Feature / factor | KH-XH-4A-Z | XH-4PS | ZX-XH2.54-4PZZ-Y | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Positions | 4 | 4 | 4 | 4 — Number of positions match.; ZX-XH2.54-4PZZ-Y: Number of positions match. | |
| Pitch | 2.50mm | 2.5mm | 2.5mm | 2.5mm — Pitch matches.; ZX-XH2.54-4PZZ-Y: Pitch matches. | |
| Package | Through Hole, Straight | Through Hole, Vertical | Through Hole, Straight | Through Hole, Vertical / Through Hole, Straight — Mounting type and orientation appear to match.; ZX-XH2.54-4PZZ-Y: Mounting type and orientation appear to match. | |
| Current | 3A | 3A | 3.0A | 3A / 3.0A — Current rating matches.; ZX-XH2.54-4PZZ-Y: Current rating matches. | |
| Voltage | 250V | 250V | 250V | 250V — Voltage rating matches.; ZX-XH2.54-4PZZ-Y: Voltage rating matches. |
The best alternatives are XH-4PS and ZX-XH2.54-4PZZ-Y. They match the critical electrical ratings and physical form factor, but require a final mechanical check using their datasheets.