Is there a pin-compatible replacement for WJ300V-5.0-03P-12-00A?

DORABO's DB127V-5.0-3P-GN-S is a form-fit-function match, meaning it has the same PCB footprint (3-pin, 5.0mm pitch). However, due to a minor current rating difference, it's not a direct drop-in and requires engineering review.

What risks should I check before replacing WJ300V-5.0-03P-12-00A?

The main risks are mechanical and electrical mismatches. Verify the pitch (5.0mm), pin count (3), and mounting orientation (vertical). Also, ensure the substitute's current rating is sufficient for your application, as the original is rated for 16A.

WJ300V-5.0-03P-12-00A Alternatives, Datasheet & Cross Reference | KANGNEX

Finding a replacement for the WJ300V-5.0-03P-12-00A terminal block requires matching its 3-position, 5.0mm pitch, and 16A current rating. Several alternatives exist, but careful review of mechanical and electrical specifications is crucial.

AI replacement insight

Electrical riskmedium

Most alternatives have lower current ratings than the 16A target.

Package risklow

Several parts match the 5.0mm pitch and vertical mount, but many common parts use 5.08mm pitch and must be avoided.

Can it be replaced directly?

No exact drop-in replacement was found. The closest alternatives require review, primarily for a slight reduction in current rating.

Best replacement path

The most viable path is using a form-fit compatible part like DB127V-5.0-3P-GN-S, accepting a minor current derating from 16A to 15A.

Main risk

The primary risk is selecting a substitute with an insufficient current rating or an incorrect mechanical form factor (pitch or mounting angle).

Recommended alternatives

A 3-position, 5.0mm pitch terminal block with a slightly lower current rating.

View details

Alternative comparison matrix

Feature / factor	WJ300V-5.0-03P-12-00A	DB127V-5.0-3P-GN-S	MX126R-5.0-03P-GN01-Cu-S-A	Compatibility / risk
Pitch	5.0mm	5.0mm	5.0mm	5.0mm — Pitch matches.; MX126R-5.0-03P-GN01-Cu-S-A: Pitch matches.
Package	Vertical Through Hole	Vertical Through Hole	Right Angle	Vertical Through Hole / Right Angle — Form and fit match.; MX126R-5.0-03P-GN01-Cu-S-A: Form factor mismatch; target is vertical.
Current	16A	15A	10A	15A / 10A — Slight downgrade, verify application has margin.; MX126R-5.0-03P-GN01-Cu-S-A: Significant downgrade, requires application review.
Voltage	250V	300V	300V	300V — Higher voltage rating is acceptable.; MX126R-5.0-03P-GN01-Cu-S-A: Higher voltage rating is acceptable.
Wire Gauge	22-14 AWG	26-14 AWG	-	26-14 AWG — Slightly different lower range.

Application & sourcing insights

Questions & answers

The DORABO DB127V-5.0-3P-GN-S is a strong functional alternative. It matches the 3-position, 5.0mm pitch, and vertical mounting, but has a slightly lower current rating of 15A versus the original's 16A.