VI-B4J-CU Equivalent & Substitute Parts Reference

Part Overview

The Vicor VI-B4J-CU is a DC-DC converter isolated module rated for 36V output, 5.56A current, and 200W power, with an input range of 55V to 100V. This device features a 3 kV isolation, integrated protection features (OCP, OTP, OVP, SCP), and is built in a full brick through-hole package measuring 4.60" x 2.40" x 0.50". The part is classified as obsolete. For continued supply and design maintenance, it is necessary to identify substitute models matching all core electrical, mechanical, and regulatory criteria.

Substiute Parts

VI-B4J-CU

Vicor CorporationIn Stock: 653VI-B4J-CU Datasheet

Current PartRFQ

VI-B4J-CU-B1

Vicor CorporationIn Stock: 967VI-B4J-CU-B1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for DC-DC converter modules in this category requires strict alignment on input voltage range, output voltage, output current, power rating, isolation voltage, number of outputs, package type, mounting method, efficiency, operating temperature range, protection features, and compliance information. Substitutes are selected only if all these parameters match or are equivalent to the discontinued model.

Parameter Comparison

Engineering Selection Recommendations

The VI-B4J-CU is obsolete. The VI-B4J-CU-B1 is active and matches all provided electrical, mechanical, and compliance parameters, except for the height dimension. Both models are RoHS non-compliant and REACH unaffected, with identical moisture sensitivity and export classification. Selection should consider product availability and regulatory compliance status, as both models share critical certifications.

Frequently Asked Questions (FAQ)

Q: Can VI-B4J-CU-B1 directly replace VI-B4J-CU in all applications?
A: VI-B4J-CU-B1 matches all stated electrical characteristics, mounting method, package type, and compliance status. The only variance is in height dimension.

Q: Are there differences in electrical performance between the parts?
A: All listed electrical parameters, including input/output voltage, current, power, isolation, efficiency, and protection features, are identical.

Q: Is the RoHS status different between these models?
A: Both VI-B4J-CU and VI-B4J-CU-B1 are RoHS non-compliant.

Q: Is package compatibility assured?
A: Both models use a full brick package and through-hole mounting. The key difference is overall height: VI-B4J-CU is 0.50" high, VI-B4J-CU-B1 is 1.07" high.

Q: Should operating temperature or certifications be considered in substitution?
A: The operating temperature range, REACH status, moisture sensitivity, ECCN, and HTSUS are the same for both parts, based on provided data.