VI-J4K-EY Equivalent & Substitute Parts Reference Guide

Part Overview

The Vicor Corporation VI-J4K-EY is an isolated module DC-DC converter, delivering a single 40V output at up to 1.25A from a 55V to 100V input. It features 3 kV isolation and a power rating of 50W, with overcurrent and short-circuit protection. This product is classified as obsolete, making it necessary to identify alternative models with matching electrical, mechanical, and reliability parameters to ensure ongoing support for existing applications and designs.

Substiute Parts

VI-J4K-EY

Vicor CorporationIn Stock: 684VI-J4K-EY Datasheet

Current PartRFQ

VI-J4K-EY-F1

Vicor CorporationIn Stock: 920VI-J4K-EY-F1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VI-J4K-EY are identified strictly based on the following matching parameters:

• Manufacturer: Vicor Corporation
• Electrical: Input voltage range, output voltage, output current, and power rating
• Mechanical: Package type (Half Brick), through-hole mounting, and physical size and dimensions where provided
• Features: OCP (overcurrent protection) and SCP (short-circuit protection)
• Environmental: Operating temperature range
• Compliance: RoHS status, REACH status, MSL, ECCN, HTSUS

All listed parameters are required to match for strict substitution in this product category.

Parameter Comparison

Engineering Selection Recommendations

When selecting a replacement for the obsolete Vicor VI-J4K-EY, use only those substitute models meeting all matching parameters, including power, voltage, current, protection features, isolation, mechanical format, and compliance attributes. The VI-J4K-EY-F1 provides equivalent RoHS, REACH, MSL, ECCN, and HTSUS status, and maintains consistency with through-hole, half-brick mounting, and all electrical specifications. Consider inventory and product status for lifecycle alignment.

Frequently Asked Questions (FAQ)

Q1. What are the primary criteria for substituting the VI-J4K-EY DC-DC converter?
A1. Selection is based on matching electrical ratings (input voltage, output voltage, output current, power), protection features, isolation, thermal range, mounting method, package type, and compliance information.

Q2. Is the VI-J4K-EY-F1 a direct replacement for the VI-J4K-EY in terms of electrical and mechanical characteristics?
A2. The VI-J4K-EY-F1 matches all specified electrical and functional parameters, with only a variation in the physical size and height within the half-brick package class and consistent mounting type.

Q3. Are there any compliance differences between the VI-J4K-EY and VI-J4K-EY-F1?
A3. Both are non-compliant with RoHS, unaffected by REACH, not applicable for MSL, and share identical ECCN and HTSUS codes.

Q4. Does a difference in size within the half-brick package group affect substitution?
A4. Both models are classified as half-brick modules and use through-hole mounting. Dimensional differences should be reviewed against mechanical constraints specified.

Q5. Why is it necessary to find alternative parts for the VI-J4K-EY?
A5. The VI-J4K-EY is obsolete; substituting with a currently available equivalent part is required to maintain uninterrupted system functionality and support.