VI-J4J-EY Equivalent & Substitute Parts Reference

Part Overview

The VI-J4J-EY from Vicor Corporation is an isolated DC-DC converter module offering a single 36 V output at up to 1.39 A, with a 55–100 V input range and 50 W maximum power. This product, categorized as a half brick isolated module with features such as overcurrent and short-circuit protection, is now classified as obsolete. Due to its obsolete status and continued requirements for compatible DC-DC conversion modules in existing designs, identifying substitute models with matching key electrical, mechanical, and compliance parameters is necessary.

Substiute Parts

VI-J4J-EY

Vicor CorporationIn Stock: 929VI-J4J-EY Datasheet

Current PartRFQ

VI-J4J-EY-F1

Vicor CorporationIn Stock: 810VI-J4J-EY-F1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined by strict alignment of core electrical and mechanical parameters, including input voltage range, output voltage and current rating, power, isolation voltage, package type, efficiency, protection features, and compliance descriptors. Only those parts matching these key parameters are considered valid substitutes.

Key parameters for grouping:

• Input Voltage Range (55–100 V)
• Output Voltage (36 V)
• Output Current (1.39 A)
• Power (50 W)
• Voltage Isolation (3 kV)
• Efficiency (88%)
• Operating Temperature (–10°C to 100°C)
• Package/Case (Half Brick)
• Mounting (Through Hole)
• Features (OCP, SCP)
• RoHS/REACH Status
• Application Category (ITE, Commercial)

Parameter Comparison

Engineering Selection Recommendations

The VI-J4J-EY is classified as obsolete, and the substitute VI-J4J-EY-F1 is active. Both modules share the same series, key electrical ratings, protection features, package category, and compliance characteristics. Both parts are listed as RoHS non-compliant and REACH unaffected, with through-hole mounting and half brick format. Only the size/dimension field differs within the half brick class. Selection can be based on product lifecycle status and confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: What criteria are used to qualify VI-J4J-EY-F1 as a substitute for VI-J4J-EY?
A: Substitution is based strictly on matching electrical parameters including input voltage range, output voltage and current, power rating, isolation voltage, efficiency, protection features, package type, mounting method, compliance, and application category.

Q: Are the two DC-DC converter modules mechanically compatible?
A: Both are classified as half brick, through-hole modules from the same series. The specific size and dimensional details should be considered for direct mechanical fit where critical.

Q: Do both models have the same compliance status for RoHS and REACH?
A: Both VI-J4J-EY and VI-J4J-EY-F1 are RoHS non-compliant and REACH unaffected.

Q: Is there a difference in electrical performance between the parts?
A: The electrical parameters, including input and output ratings, efficiency, isolation voltage, and protection features are identical based on the provided data.

Q: Does the thermal specification differ between VI-J4J-EY and VI-J4J-EY-F1?
A: Both models feature the same operating temperature range of –10°C to 100°C.

Q: Why is it necessary to find a substitute part for VI-J4J-EY?
A: The main part, VI-J4J-EY, is designated obsolete, making it essential to identify a currently active DC-DC converter with strictly matching parameters for continued maintenance or production.