Equivalent & Substitute Parts for Vicor VI-2TH-IV

Part Overview

The Vicor VI-2TH-IV is an isolated module DC-DC converter designed for ITE (Commercial) applications. It features a single output of 52V rated at 2.88A with an input voltage operating range from 66V to 160V, delivering up to 150W output power. This model is part of the VI-200™ (150W) series with a full brick through-hole package and provides core features including overcurrent protection (OCP), overtemperature protection (OTP), overvoltage protection (OVP), and short circuit protection (SCP). The part is currently listed as obsolete, which necessitates the identification of alternative models for continued design support and replacement in existing systems.

Substiute Parts

VI-2TH-IV

Vicor CorporationIn Stock: 788VI-2TH-IV Datasheet

Current PartRFQ

VI-2TH-IV-B1

Vicor CorporationIn Stock: 1041VI-2TH-IV-B1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Vicor VI-2TH-IV with the VI-2TH-IV-B1 is based strictly on identical key electrical and mechanical parameters. These include input voltage range, output voltage and current, maximum power rating, voltage isolation, feature set (OCP, OTP, OVP, SCP), efficiency, operating temperature range, mounting style, and full brick package standard. Both parts share RoHS non-compliance status. The only dimensional difference is the height of the package.

Parameter Comparison

Engineering Selection Recommendations

The main part, VI-2TH-IV, is obsolete. The substitute VI-2TH-IV-B1 is active and maintains identical key electrical specifications, mounting style, and compliance status (RoHS non-compliant, REACH Unaffected, ECCN EAR99, HTSUS 8504.40.9580). The only distinction is an increased package height for VI-2TH-IV-B1, which must be accommodated in mechanical designs.

Frequently Asked Questions (FAQ)

Q1: What criteria were used for finding substitute parts for the Vicor VI-2TH-IV DC-DC converter?
A1: Substitute parts are selected based on matching electrical performance, operating temperature, feature set, mounting type, package size category, and compliance status. Only parts with the same input and output specifications, power rating, and isolation voltage are considered.

Q2: Are the VI-2TH-IV and VI-2TH-IV-B1 DC-DC converters fully compatible in terms of electrical specifications?
A2: Yes. Both parts share exactly the same input voltage range, output voltage and current, power rating, voltage isolation, efficiency, protection features, and recommended operating temperature.

Q3: Are there any mechanical differences between the VI-2TH-IV and VI-2TH-IV-B1?
A3: Yes. Both use a full brick package, but VI-2TH-IV-B1 has a greater height (1.07" vs 0.50"). It is necessary to ensure the available space supports this height.

Q4: Is RoHS compliance identical between the original and substitute parts?
A4: Yes. Both parts are RoHS non-compliant.

Q5: Can the substitute part be used in applications qualifying under REACH or ECCN requirements?
A5: Yes, both parts are REACH unaffected and classified under ECCN EAR99.