Is there a pin-compatible replacement for XY303V-3.81-2P?

No candidate can be guaranteed as pin-compatible without a direct comparison of the datasheets' mechanical drawings. However, parts like DB127S-3.81-2P-GN-S are designed to industry standards and have a high probability of being pin-compatible. Always verify the footprint.

What risks should I check before replacing XY303V-3.81-2P?

The main risk is mechanical mismatch. You must check the candidate's datasheet to ensure its PCB footprint (pin diameter and spacing) matches your board layout. Also, consider minor differences like color or the exact screw termination mechanism.

XY303V-3.81-2P Alternatives, Datasheet & Cross Reference | Ningbo Xinlaiya Electronic Technology Co., Ltd.

Finding a substitute for the XY303V-3.81-2P terminal block involves matching its 2-position, 3.81mm pitch, and 300V/10A rating. Several strong functional alternatives exist, requiring only a final check of the PCB footprint for a successful replacement.

AI replacement insight

Electrical risklow

Top candidates match the 300V/10A rating.

Package riskmedium

While all are through-hole with 3.81mm pitch, the exact pin diameter and housing dimensions must be verified.

Sourcing risklow

Multiple manufacturers produce similar terminal blocks, offering good sourcing flexibility.

Can it be replaced directly?

There are no confirmed direct drop-in replacements without verifying the PCB footprint. However, DB127S-3.81-2P-GN-S is a very strong candidate with matching electrical specifications.

Best replacement path

The DORABO DB127S and DB125 series are the most promising alternatives, offering identical key electrical ratings and physical parameters like pitch and position count. Final selection depends on verifying the PCB footprint.

Main risk

The primary risk is mechanical incompatibility. The PCB footprint (pin spacing and diameter) of any alternative must be checked against the target's layout to ensure a proper fit.

Recommended alternatives

A 2-position, 3.81mm pitch terminal block with matching voltage and current ratings. Verify footprint before use.

View details

Alternative comparison matrix

Feature / factor	XY303V-3.81-2P	DB127S-3.81-2P-GN-S	DB125-3.81-2P-BK-S	DB125-3.81-2P-RD-S	Compatibility / risk
Pitch	3.81 mm	3.81 mm	3.81 mm	3.81 mm	3.81 mm — Pitch matches.; DB125-3.81-2P-BK-S: Pitch matches.; DB125-3.81-2P-RD-S: Pitch matches.
Positions	2	2	-	-	2 — Number of positions matches.
Voltage	300 V	300 V	-	-	300 V — Voltage rating matches.
Current	10 A	10 A	10 A	10 A	10 A — Current rating matches.; DB125-3.81-2P-BK-S: Current rating matches.; DB125-3.81-2P-RD-S: Current rating matches.
Package	Through Hole	Through Hole	-	-	Through Hole — Mounting type matches.
Color	Green/Black (default)	-	Black	Red	Black / Red — Color is black, may differ from original.; DB125-3.81-2P-RD-S: Color is red, may differ from original.
Wire Gauge	26-16 AWG	-	-	28-16 AWG	28-16 AWG — Accepts a slightly wider wire gauge range.

Application & sourcing insights

Questions & answers

The best alternatives are DB127S-3.81-2P-GN-S and the DB125 series from DORABO. They match the critical 3.81mm pitch, 2-position, 300V, and 10A specifications, but you must verify the PCB footprint before ordering.