M2545R-04P
Dongguan Xingfei Connector Co., Ltd.
Needs validationhigh risk
2.54mm RA cross-vendor header with higher ratings, but not a direct 2P match.
Best Alternatives to XY-XHB2.54-2A21
XY-XHB2.54-2A21 is a 2P 2.54mm right-angle wire-to-board header. No direct pin-compatible substitute is confirmed here.
AI replacement insight
Electrical risklow
Kept parts meet or exceed 250V and 2A.
Package riskhigh
All kept parts have different position counts.
Firmware risklow
Passive connector; no firmware impact.
Sourcing riskmedium
Catalog indexed, but product URLs absent.
Can it be replaced directly?
No confirmed pin-compatible replacement was found in these candidates.
Best replacement path
Source the exact 2P part first; use same-pitch alternates only with board and harness review.
Main risk
Pin count, footprint length, and mating housing mismatch.
Recommended alternatives
2Alternative comparison matrix
| Feature / factor | XY-XHB2.54-2A21 | XY-XHB2.54-8A21 | M2545R-04P | M2553R-03P | Compatibility / risk |
|---|---|---|---|---|---|
| Package | TH RA | TH RA | TH RA | TH RA | TH RA — Mount style matches; M2545R-04P: Mount style matches; M2553R-03P: Mount style matches |
| Pinout | 2P,1-row | 8P,1-row | 4P,1-row | 3P,1-row | 8P,1-row / 4P,1-row / 3P,1-row — Position count differs; M2545R-04P: Position count differs; M2553R-03P: Extra position |
| Voltage | 250 V | 250 V | 250 V | 250 V | 250 V — Rating matches; M2545R-04P: Rating matches; M2553R-03P: Rating matches |
| Current | 2 A | 2 A | 4 A | 5 A | 2 A / 4 A / 5 A — Rating matches; M2545R-04P: Higher rating; M2553R-03P: Higher rating |
| Temperature | -25..85C | -25..85C | -40..130C | not keyed | -25..85C / -40..130C / not keyed — ES summary match; M2545R-04P: Wider range; M2553R-03P: Needs check |
Application & sourcing insights
Questions & answers
The best path is the exact 2P part. XY-XHB2.54-8A21 is only a same-series redesign candidate.