
Megastar
Strong functional match with identical key electrical ratings and form factor.
XY-XH2.54-4A11-R is a common 4-pin, 2.54mm pitch straight header used in wire-to-board applications. Several functional alternatives are available, but require careful verification of mechanical fit and electrical ratings to ensure compatibility.
Subtle differences in connector housing dimensions can prevent mating.
Strong candidates match voltage and current ratings, but downgrades exist.
This is a common connector type with multiple manufacturers.
No guaranteed drop-in replacement has been identified. ZX-XH2.54-4PZZ-R is the closest candidate but requires engineering review of its datasheet to confirm mechanical compatibility.
Evaluate ZX-XH2.54-4PZZ-R for form, fit, and function by comparing datasheet mechanical drawings.
The primary risk is mechanical incompatibility. While pitch and pin count match, subtle differences in housing dimensions, pin length, or locking features can prevent a proper fit.

Megastar
Strong functional match with identical key electrical ratings and form factor.
| Feature / factor | XY-XH2.54-4A11-R | ZX-XH2.54-4PZZ-R | WF-1A254A4P-Y | Alt 3 | Compatibility / risk |
|---|---|---|---|---|---|
| Package | Through Hole, Straight | Through Hole | Through Hole | Through Hole — Straight TH header. Verify mechanical drawings for exact dimensions.; WF-1A254A4P-Y: Straight TH header. Verify mechanical drawings. | |
| Current | 3.0 A | 3.0 A | 2 A AC/DC | 3.0 A / 2 A AC/DC — matched; WF-1A254A4P-Y: Candidate has a lower current rating than the target. | |
| Voltage | 250 V | 250 V | 250 V AC/DC | 250 V / 250 V AC/DC — matched; WF-1A254A4P-Y: matched | |
| Temperature | -25°C to 85°C | -25°C to +85°C | - | -25°C to +85°C — matched | |
| Color | Red | - | Yellow | Yellow — Housing color differs from target's red housing. |
The best alternative identified is ZX-XH2.54-4PZZ-R from Megastar. It matches the key electrical specifications and form factor, but you must verify the mechanical drawings in the datasheet before ordering.