Vicor VI-J1K-EX Equivalent & Substitute Parts Reference

Part Overview

Vicor VI-J1K-EX is an isolated module DC-DC converter designed for commercial ITE applications, providing one output at 40V and up to 1.88A with an input range of 21V to 32V. Its features include overcurrent and short-circuit protection, 3 kV isolation, and a half-brick through-hole package. The product is classified as obsolete, making it necessary to identify alternative models with matching electrical and mechanical parameters for continued circuit design and maintenance.

Key Parameters

Parameter	Value
Manufacturer Part Number	VI-J1K-EX
Type	Isolated Module
Number of Outputs	1
Voltage - Input (Min)	21V
Voltage - Input (Max)	32V
Voltage - Output 1	40V
Current - Output (Max)	1.88A
Power (Watts)	75 W
Voltage - Isolation	3 kV
Operating Temperature	-10°C ~ 100°C
Efficiency	88%
Mounting Type	Through Hole
Package / Case	Half Brick
Size / Dimension	2.28" L x 2.40" W x 0.50" H (57.9mm x 70.0mm x 12.7mm)
RoHS Status	RoHS non-compliant
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8504.40.9580

Substitute Part Grouping Explanation

Substitution is determined exclusively by matching electrical, mechanical, and compliance parameters. The substitute must offer the same isolation, input and output voltage range, current, power rating, temperature range, efficiency, mounting type, and package size category. Only parameters provided in the input were evaluated: output voltage, output current, input voltage range, isolation voltage, efficiency, mounting type, package / case, operating temperature, RoHS and REACH status, and regulatory codes.

Parameter Comparison

Parameter	VI-J1K-EX (Main)	VI-J1K-EX-B1 (Substitute)
Type	Isolated Module	Isolated Module
Number of Outputs	1	1
Voltage - Input (Min)	21V	21V
Voltage - Input (Max)	32V	32V
Voltage - Output 1	40V	40V
Current - Output (Max)	1.88A	1.88A
Power (Watts)	75 W	75 W
Voltage - Isolation	3 kV	3 kV
Operating Temperature	-10°C ~ 100°C	-10°C ~ 100°C
Efficiency	88%	88%
Mounting Type	Through Hole	Through Hole
Package / Case	Half Brick	Half Brick
Size / Dimension	2.28" L x 2.40" W x 0.50" H (57.9mm x 70.0mm x 12.7mm)	2.36" L x 2.28" W x 1.08" H (59.9mm x 57.9mm x 27.4mm)
RoHS Status	RoHS non-compliant	RoHS non-compliant
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8504.40.9580	8504.40.9580

Engineering Selection Recommendations

The primary selection criteria are product status, compliance, and provided certifications. VI-J1K-EX is obsolete, while VI-J1K-EX-B1 is active. Both models are RoHS non-compliant and REACH unaffected with identical ECCN and HTSUS codes. Substitution is supported exclusively due to matched functional parameters, regulatory codes, and series membership.

Frequently Asked Questions (FAQ)

Q: What are the main criteria for substituting VI-J1K-EX with VI-J1K-EX-B1?
A: Substitution is based strictly on matching input/output voltages, output current, isolation voltage, efficiency, mounting type, package/case, operating temperature, and compliance parameters.

Q: Are there dimensional differences between the VI-J1K-EX and VI-J1K-EX-B1 modules?
A: Yes, both are half-brick packages, but the exact physical dimensions differ. Ensure mechanical compatibility in the target application.

Q: Is the substitute part RoHS compliant?
A: Both VI-J1K-EX and VI-J1K-EX-B1 are RoHS non-compliant.

Q: Does the substitute have the same regulatory certifications?
A: Both parts share identical ECCN and HTSUS codes and are REACH unaffected.

Q: Are there any application or features changes between these modules?
A: Both support OCP and SCP features for ITE (commercial) applications as specified.

Q: Is additional evaluation needed for mounting type or footprint compatibility?
A: Both models use through-hole mounting and half-brick form factor; however, review size details for enclosure or layout alignment.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message