
XINLAIYA
This is a strong cross-vendor alternative with matching pitch, positions, voltage, and current ratings.
Find the best replacement for the MX126-5.0-03P-GN01-Cu-S-A, a standard 3-position, 5.0mm pitch through-hole terminal block rated for 300V and 10A. This page provides verified alternatives and technical comparisons.
Many candidates match or exceed the 300V/10A rating.
The 5.0mm pitch footprint is an industry standard, but verification of the datasheet drawing is still required.
This is a common component type with a wide supply base, reducing sourcing risk.
Yes, several direct replacements exist from other manufacturers. Parts like XY126V-5.0-3P offer identical key specifications for pitch, voltage, and current.
Use a cross-vendor part with matching specs like XY126V-5.0-3P, or an upgraded-current part like XY301V-A-5.0-3P after verifying mechanical drawings.
The primary risk is minor differences in housing dimensions or material quality between manufacturers. Always verify mechanical drawings.

XINLAIYA
This is a strong cross-vendor alternative with matching pitch, positions, voltage, and current ratings.
| Feature / factor | MX126-5.0-03P-GN01-Cu-S-A | XY126V-5.0-3P | DB128V-5.0-3P-GN-S | XY301V-A-5.0-3P | Compatibility / risk |
|---|---|---|---|---|---|
| Package | 3 pos, 5.0mm pitch, Through Hole | 3 pos, 5.0mm pitch, Through Hole | 3 pos, 5.0mm pitch, Through Hole | 3 pos, 5.0mm pitch, Through Hole | 3 pos, 5.0mm pitch, Through Hole — Form and fit parameters match.; DB128V-5.0-3P-GN-S: Form and fit parameters match.; XY301V-A-5.0-3P: Form and fit parameters match. |
| Voltage | 300 V | 300 V | 300 V | 300 V | 300 V — matched; DB128V-5.0-3P-GN-S: matched; XY301V-A-5.0-3P: matched; XY119A-5.0-3P: matched |
| Current | 10 A | 10 A | 16 A | 15 A | 10 A / 16 A / 15 A — matched; DB128V-5.0-3P-GN-S: Higher current rating provides more margin.; XY301V-A-5.0-3P: Higher current rating provides more margin.; XY119A-5.0-3P: Current rating is 50% lower. |
| Application | 26-14 AWG | 26-14 AWG | 22-12 AWG | 22-14 AWG | 26-14 AWG / 22-12 AWG / 22-14 AWG / 20-18 AWG — Wire gauge range matches.; DB128V-5.0-3P-GN-S: Different wire gauge range, accepts larger wires.; XY301V-A-5.0-3P: Slightly narrower wire gauge range.; XY119A-5.0-3P: Significantly more restrictive wire gauge. |
The best alternatives are XY126V-5.0-3P for a near-identical match, or XY301V-A-5.0-3P and DB128V-5.0-3P-GN-S for an upgrade with a higher current rating. Always check datasheets before purchasing.