
Strong SMT alternative from JST matching all key electrical and mechanical specs; requires footprint check.
ZX-XH2.54-6PWT is a 6-pin, 2.5mm pitch, right-angle SMT header from Megastar. The strongest replacement is the JST S6B-XH-SM4-TB(LF)(SN), which matches key specs but requires footprint verification. Several through-hole functional alternatives are also available if a PCB redesign is an option.
SMT footprint must be verified. Many alternatives are through-hole and require a new PCB layout.
Key electrical ratings (voltage, current) are standard for this connector family and easily matched.
Direct replacement for ZX-XH2.54-6PWT should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
The JST S6B-XH-SM4-TB(LF)(SN) is the strongest candidate, matching the SMT mounting and key electricals. Verify its footprint before use.
The primary risk is mechanical incompatibility. Many alternatives are through-hole, requiring a PCB redesign, and SMT alternatives need footprint verification.

Strong SMT alternative from JST matching all key electrical and mechanical specs; requires footprint check.
| Feature / factor | ZX-XH2.54-6PWT | S6B-XH-SM4-TB(LF)(SN) | ZX-XH2.54-6PLT | S6B-XH-A(LF)(SN) | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Surface Mount (SMT), Right Angle | Surface Mount (SMT), Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Surface Mount (SMT), Right Angle / Through Hole, Right Angle — Matches target's mounting style. Footprint verification is required.; ZX-XH2.54-6PLT: Requires different PCB layout.; S6B-XH-A(LF)(SN): Requires different PCB layout. |
| Pinout | 6 | 6 | 6 | 6 | 6 — Same pin count and pitch.; ZX-XH2.54-6PLT: Same pin count and pitch.; S6B-XH-A(LF)(SN): Same pin count and pitch. |
| Voltage | 250V | 250V | 250V | 250V | 250V — Voltage rating matches.; ZX-XH2.54-6PLT: Voltage rating matches.; S6B-XH-A(LF)(SN): Voltage rating matches. |
| Current | 3A | 3A | 3A | 3A | 3A — Current rating matches.; ZX-XH2.54-6PLT: Current rating matches.; S6B-XH-A(LF)(SN): Current rating matches. |
| Manufacturer | Megastar | JST | - | - | JST — Cross-vendor from a major brand. |
Verified drop-in options for ZX-XH2.54-6PWT 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.