Is there a pin-compatible replacement for MX129-5.08-02P-GN01-Cu-Y-A?

No pin-compatible replacement with an identical 20A current rating was found. While parts like XY2500V-D-5.08-2P are physically compatible, their lower electrical rating requires careful review.

What risks should I check before replacing MX129-5.08-02P-GN01-Cu-Y-A?

The main risk is the lower current rating. All suggested alternatives are rated for 15A, while the original part is 20A. Using a lower-rated part without reducing system current can cause overheating and failure.

MX129-5.08-02P-GN01-Cu-Y-A Alternatives, Datasheet & Cross Reference | Cybermax

Finding a substitute for the MAX MX129-5.08-02P-GN01-Cu-Y-A requires careful attention to its 20A current rating. While several terminal blocks share its 2-pin, 5.08mm pitch package, most are rated for lower currents.

AI replacement insight

Electrical riskhigh

All candidates have a lower current rating (15A vs 20A), requiring mandatory engineering review.

Package risklow

Several candidates match the 2-pin, 5.08mm pitch, vertical through-hole package.

Can it be replaced directly?

No direct, 1-to-1 replacement with a 20A rating was found among the candidates. All form-factor matches have a lower current rating of 15A.

Best replacement path

Use a candidate with a lower current rating like XY2500V-D-5.08-2P, but only after verifying the application's actual current draw is safely below 15A.

Main risk

The primary risk is electrical overstress. Replacing a 20A rated terminal block with a 15A version without derating the application current can lead to overheating and failure.

Recommended alternatives

A potential alternative with the same form factor but a lower current rating of 15A and different color.

View details

Alternative comparison matrix

Feature / factor	MX129-5.08-02P-GN01-Cu-Y-A	DB2EK-5.08-2P-OG-S	DB2EKM-5.08-2P-GN-S	XY2500V-D-5.08-2P	Compatibility / risk
Current	20 A	15 A	15 A	15 A	15 A — Candidate current rating is 25% lower than target.; DB2EKM-5.08-2P-GN-S: Candidate current rating is 25% lower than target.; XY2500V-D-5.08-2P: Candidate current rating is 25% lower than target.
Voltage	300 V	300 V	300 V	300 V	300 V — matched; DB2EKM-5.08-2P-GN-S: matched; XY2500V-D-5.08-2P: matched
Pitch	5.08 mm	5.08 mm	5.08 mm	5.08 mm	5.08 mm — matched; DB2EKM-5.08-2P-GN-S: matched; XY2500V-D-5.08-2P: matched
Color	Green	Orange	-	-	Orange — Color differs from target's green.
Wire Gauge	26-12 AWG	-	28-12 AWG	-	28-12 AWG — Wider range than target's 26-12 AWG.
Package	Terminal Block	-	-	Vertical PCB Terminal Block	Vertical PCB Terminal Block — Both are vertical through-hole terminal blocks.

Application & sourcing insights

Questions & answers

The best alternatives are parts like XY2500V-D-5.08-2P or DB2EKM-5.08-2P-GN-S, but they have a lower current rating of 15A. You must verify your application's current is below this limit.