
CJT
A 2-pin, 2.54mm pitch straight header with higher current/temp ratings but tin contact plating.
X6511WRS-02H-C60D48-1 is a 2-pin, 2.54mm pitch straight male header with gold-plated contacts. Alternatives are available but may differ in contact plating, requiring careful review.
Form factor (straight 2.54mm header) is common and matches.
Contact plating downgrade from gold to tin requires validation.
Many similar tin-plated headers are widely available.
No direct drop-in replacement with gold plating was found. Several form-fit-function alternatives with tin plating exist, such as A2543WV-2P and WAFER-XH254JK-2A, which require engineering review.
Use A2543WV-2P for an upgrade in current and temperature ratings, provided that tin plating is acceptable for the application.
The primary risk is the difference in contact plating (Gold vs. Tin), which can affect long-term reliability and contact resistance.

CJT
A 2-pin, 2.54mm pitch straight header with higher current/temp ratings but tin contact plating.
| Feature / factor | X6511WRS-02H-C60D48-1 | A2543WV-2P | WAFER-XH254JK-2A | ZX-HA2.54-2PZZ-Y | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Straight, TH | Straight, TH | Straight, TH | Straight, TH | Straight, TH — Form factor matches target.; WAFER-XH254JK-2A: Form factor matches target.; ZX-HA2.54-2PZZ-Y: Form factor matches target. |
| Current | 3A | 4A | 3A | 3A | 4A / 3A — Higher current rating is an upgrade.; WAFER-XH254JK-2A: Current rating matches.; ZX-HA2.54-2PZZ-Y: Current rating matches. |
| Temperature | Not specified | -40°C to +105°C | - | - | -40°C to +105°C — Wider operating temperature range. |
| Contact Plating | Gold | Tin | Tin | Tin | Tin — Plating downgrade may affect reliability.; WAFER-XH254JK-2A: Plating downgrade may affect reliability.; ZX-HA2.54-2PZZ-Y: Plating downgrade may affect reliability. |
| Voltage | 250V | - | 250V | 250V | 250V — Voltage rating matches.; ZX-HA2.54-2PZZ-Y: Voltage rating matches. |
| Lifecycle | - | - | - | - | - — Candidate lifecycle is unknown. |
A2543WV-2P from CJT is a strong candidate, offering higher current (4A) and a wider temperature range, but uses tin plating instead of gold. Review is required.