
XUNDA
Matches electrical ratings and gold plating, but is a simple pin strip, not a shrouded box header.
A2541HWV-4P is a 4-pin, 2.54mm pitch straight shrouded box header from CJT, rated for 3A and 250V. Finding a suitable replacement requires matching the shrouded form factor for mechanical protection and proper mating, in addition to the key electrical specifications.
Candidates are unshrouded, while the target is a shrouded box header. Mating will be different.
Some candidates use tin plating instead of gold, which can affect long-term reliability.
Multiple vendors produce similar unshrouded headers, but finding a shrouded equivalent may require more specific sourcing.
No direct drop-in replacement was found. All candidates lack the target's shrouded housing, which is a critical mechanical feature for mating and protection.
Search for a 4-pin, 2.54mm pitch, straight, shrouded box header with gold-plated contacts to ensure mechanical and electrical compatibility.
Mechanical mismatch due to the missing shroud, affecting mating connector compatibility, polarization, and pin protection.

XUNDA
Matches electrical ratings and gold plating, but is a simple pin strip, not a shrouded box header.
| Feature / factor | A2541HWV-4P | XDZ254-1-04-Z-2.5-G1 | XY-XH2.54-4A11-R | ZX-XH2.54-4PZZ-R | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Box Header | Unshrouded Pin Strip | Unshrouded Wafer | Unshrouded Wafer | Unshrouded Pin Strip / Unshrouded Wafer — Target is a shrouded box header. Candidate is a basic pin strip, lacking housing and protection.; XY-XH2.54-4A11-R: Target is a shrouded box header. Candidate lacks shroud, affecting mating and protection.; ZX-XH2.54-4PZZ-R: Target is a shrouded box header. Candidate lacks shroud, affecting mating and protection. |
| Contact Plating | Gold over Nickel | Gold | Tin | Tin | Gold / Tin — matched; XY-XH2.54-4A11-R: Downgrade from gold may affect long-term reliability and contact resistance.; ZX-XH2.54-4PZZ-R: Downgrade from gold may affect long-term reliability and contact resistance. |
| Ratings | 3 A / 250 V | 3.0 A / 250 V | 3.0 A / 250 V | - | 3.0 A / 250 V — matched; XY-XH2.54-4A11-R: matched |
| Temperature | Not specified | -40°C to +105°C | - | - | -40°C to +105°C — Wider operating range. |
| Pitch Pins | 2.54 mm / 4 | 2.54 mm / 4 | 2.54 mm / 4 | 2.54 mm / 4 | 2.54 mm / 4 — matched; XY-XH2.54-4A11-R: matched; ZX-XH2.54-4PZZ-R: matched |
| Orientation | Straight (180°) | - | Straight | Straight | Straight — matched; ZX-XH2.54-4PZZ-R: matched |
| Current | 3 A | - | - | 3.0 A | 3.0 A — matched |
While no direct drop-in replacements were found, parts like XUNDA's XDZ254-1-04-Z-2.5-G1 offer matching electrical ratings and gold plating but lack the protective shroud. Verification of mechanical fit and mating connector compatibility is essential.