Equivalent & Substitute Parts Reference for Vicor VI-25T-IV DC DC Converter

Part Overview

The Vicor Corporation VI-25T-IV is an isolated DC-DC converter module providing a single 6.5V output at up to 23.08A with rated power of 150 W. It is designed for ITE (Commercial) applications, features OCP, OTP, OVP, SCP protections, and operates across a 100V–200V input range with 3 kV isolation. The part is through-hole mounted in a full brick package with specific mechanical dimensions. Product status is obsolete, making it necessary to identify suitable alternative models to ensure continuity of operation and sourcing in designs specifying this converter.

Substiute Parts

VI-25T-IV

Vicor CorporationIn Stock: 867VI-25T-IV Datasheet

Current PartRFQ

VI-25T-IV-B1

Vicor CorporationIn Stock: 887VI-25T-IV-B1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute identification for the VI-25T-IV DC-DC converter is strictly determined by matching the core electrical and mechanical parameters: identical input voltage range (100V–200V), output voltage (6.5V), output current (23.08A), power rating (150 W), isolation (3 kV), type (isolated module), output quantity, efficiency (90%), mounting style (through hole), package (full brick), feature set (OCP, OTP, OVP, SCP), operating temperature range (-40°C ~ 85°C), size/dimensions, and compliance markers. Only parts satisfying all these defined criteria are considered suitable direct substitutes.

Parameter Comparison

Engineering Selection Recommendations

Selecting the VI-25T-IV-B1 as a substitute for the obsolete VI-25T-IV is supported by the matching electrical and mechanical characteristics. Both parts are RoHS non-compliant and REACH unaffected, with identical MSL and ECCN/HTSUS. The operating temperature, input/output parameters, mounting type, and feature set are consistent. The only dimensional difference is in height (1.07" vs. 0.50"), which must be considered in mechanical enclosure designs. The active product status of VI-25T-IV-B1 ensures continued availability within the defined compliance framework.

Frequently Asked Questions (FAQ)

Q1: What parameters must be matched for a proper VI-25T-IV substitute?
A1: Match input voltage range, output voltage/current, power rating, isolation, package type, mounting method, operating temperature, feature set, efficiency, and compliance status.

Q2: Are all full brick VI-200™ series converters suitable substitutes?
A2: Only those meeting the specific output (6.5V, 23.08A), input (100V–200V), power (150W), and identical electrical/mechanical specifications as the VI-25T-IV.

Q3: Does the difference in package height affect compatibility?
A3: Yes, mechanical design must accommodate the substitute's 1.07" height compared to the original 0.50" height.

Q4: Are there differences in compliance or environmental status between main and substitute parts?
A4: Both parts are RoHS non-compliant, REACH unaffected, with identical ECCN and HTSUS classifications.

Q5: Is feature parity ensured between the VI-25T-IV and VI-25T-IV-B1?
A5: Yes, both offer the same protection features: OCP, OTP, OVP, SCP.