
BOOMELE
Matches form and fit but has a significantly lower voltage rating (250V vs 1000V).
Finding a substitute for the HCTL PZ254-1-04-W-8.5 header requires careful attention to its high 1000V rating. While many connectors share its 4-pin, 2.54mm right-angle format, they typically offer much lower voltage handling.
Candidates have a 250V rating versus the target's 1000V. This is a critical mismatch.
Several candidates match the right-angle, 4-pin, 2.54mm pitch form factor.
The lower-voltage alternatives are widely available from multiple manufacturers.
No direct, drop-in replacement has been identified. While several candidates match the physical footprint, they all have a significantly lower voltage rating.
Use a form-fit compatible header like 2510-4A高弯 or ZX-XH2.54-4PWZ-R, but only after confirming the application's operating voltage is safely below 250V.
The primary risk is electrical overstress. Using a 250V-rated connector in an application requiring 1000V can lead to dielectric breakdown, short circuits, and system failure.

BOOMELE
Matches form and fit but has a significantly lower voltage rating (250V vs 1000V).
| Feature / factor | PZ254-1-04-W-8.5 | 2510-4A高弯 | ZX-XH2.54-4PWZ-R | ZX-XH2.54-4PWZ-Y | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle | Through Hole, Right Angle — Mounting type matches.; ZX-XH2.54-4PWZ-R: Mounting type matches.; ZX-XH2.54-4PWZ-Y: Mounting type matches. |
| Pinout | 4 | 4 | 4 | 4 | 4 — Pin count and pitch (2.54mm) match.; ZX-XH2.54-4PWZ-R: Pin count and pitch (2.54mm) match.; ZX-XH2.54-4PWZ-Y: Pin count and pitch (2.54mm) match. |
| Voltage | 1000V | 250V | 250V | 250V | 250V — Significantly lower voltage rating.; ZX-XH2.54-4PWZ-R: Significantly lower voltage rating.; ZX-XH2.54-4PWZ-Y: Significantly lower voltage rating. |
| Current | 3A | 3A | 3A | 3A | 3A — Current rating matches.; ZX-XH2.54-4PWZ-R: Current rating matches.; ZX-XH2.54-4PWZ-Y: Current rating matches. |
| Temperature | Not specified | -25°C to +85°C | - | - | -25°C to +85°C — Target operating temperature not specified. |
| Housing Color | White/Natural | - | - | Yellow | Yellow — Housing color is different. |
The best alternatives are parts like BOOMELE 2510-4A高弯 or Megastar ZX-XH2.54-4PWZ-R, which match the physical dimensions. However, they have a much lower 250V rating and should only be used if your circuit's voltage is well within that limit.