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Best Alternatives to DB301V-5.0-4P-BU-S

Package: Through HoleNingbo Dorabo Electric Co., Ltd.InterconnectsPitch: 5.0 mmNumber of Positions: 4Rated Voltage (UL): 250 VRated Current (UL): 16 AWire Gauge: 22-14 AWG

Finding a replacement for the DORABO DB301V-5.0-4P-BU-S terminal block requires matching the 4-position, 5.0mm pitch, and 16A current rating. Several alternatives exist with varying electrical ratings.

AI replacement insight

Package riskmedium

Pitch mismatch is common; even with correct pitch, footprint can vary.

Electrical riskhigh

Many similar-looking parts have lower current ratings.

Can it be replaced directly?

Direct replacement for DB301V-5.0-4P-BU-S should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.

Best replacement path

DB128V-5.0-4P-GN-S is the strongest candidate, offering matching current and pitch, but requires datasheet verification of its mechanical footprint.

Main risk

The primary risks are mechanical incompatibility from pitch or footprint differences, and electrical downgrades in current rating.

Recommended alternatives

3
DB128V-5.0-4P-GN-S package
Needs validationlow risk

A 4-position, 5.0mm pitch terminal block with matching current and higher voltage ratings.

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Alternative comparison matrix

Feature / factorDB301V-5.0-4P-BU-SDB128V-5.0-4P-GN-SWJ127-5.0-04P-14-00AWJ128V-5.0-04P-14-00ACompatibility / risk
Current16 A16 A10 A10 A16 A / 10 A — Current rating matches the target.; WJ127-5.0-04P-14-00A: Significant downgrade from target's 16A rating.; WJ128V-5.0-04P-14-00A: Significant downgrade from target's 16A rating.
Voltage250 V300 V300 V300 V300 V — Higher voltage rating provides more margin.; WJ127-5.0-04P-14-00A: Higher voltage rating provides more margin.; WJ128V-5.0-04P-14-00A: Higher voltage rating provides more margin.
Pitch5.0 mm5.0 mm5.0 mm5.0 mm5.0 mm — Pitch matches, essential for PCB fit.; WJ127-5.0-04P-14-00A: Pitch matches, essential for PCB fit.; WJ128V-5.0-04P-14-00A: Pitch matches, essential for PCB fit.
PackageThrough HolePCB Terminal BlockThrough HoleThrough HolePCB Terminal Block / Through Hole — Likely compatible, but requires datasheet check for exact footprint.; WJ127-5.0-04P-14-00A: Package type matches.; WJ128V-5.0-04P-14-00A: Package type matches.

Application & sourcing insights

Questions & answers

Verified drop-in options for DB301V-5.0-4P-BU-S are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.