Vicor VI-25B-CY Equivalent & Substitute Parts Reference

Part Overview

The Vicor VI-25B-CY is an isolated DC-DC converter module from the VI-200™ (50W) series, offering a single 95V output at up to 526mA from a 100V to 200V input range. It is supplied in a full brick, through-hole package, with key features such as 3 kV isolation, over-current protection (OCP), over-temperature protection (OTP), over-voltage protection (OVP), and short-circuit protection (SCP). This part is classified as obsolete, necessitating the identification of direct substitute models with equivalent electrical and mechanical parameters for design continuity and maintenance purposes.

Substiute Parts

VI-25B-CY

Vicor CorporationIn Stock: 818VI-25B-CY Datasheet

Current PartRFQ

VI-25B-CY-B1

Vicor CorporationIn Stock: 779VI-25B-CY-B1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Vicor VI-25B-CY are grouped strictly according to the following equivalent parameters: series, voltage input range, output voltage, output current, output power, isolation voltage, number of outputs, features, package type, package dimensions, mounting type, efficiency, and compliant environmental/designation certifications. Additional grouping is confirmed by identical or compatible mechanical package (full brick, through-hole) and environmental certification (RoHS/non-compliance, REACH status).

Parameter Comparison

Engineering Selection Recommendations

Selection of VI-25B-CY-B1 as a substitute is validated by identical electrical and functional parameters, series membership, feature set, and environmental compliance statuses. The main part, VI-25B-CY, is obsolete, while VI-25B-CY-B1 is active. Both parts are RoHS non-compliant and have the same REACH status. Mechanical differences are restricted to the component height dimension.

Frequently Asked Questions (FAQ)

Q1: Which key parameters must match when substituting the Vicor VI-25B-CY in a design?
A1: Voltage input range, output voltage, maximum output current, power rating, number of outputs, voltage isolation, features, efficiency, mounting type, package type, and environmental certifications must all match.

Q2: Is VI-25B-CY-B1 an exact electrical substitute for VI-25B-CY?
A2: All listed electrical parameters, features, and certifications for VI-25B-CY-B1 match those of VI-25B-CY. The size differs only in the height dimension.

Q3: Are there any mechanical differences between VI-25B-CY and VI-25B-CY-B1?
A3: Yes, the height of VI-25B-CY-B1 is 1.07" (27.1mm), compared to 0.50" (12.7mm) for VI-25B-CY. Length and width are identical.

Q4: Do both models provide the same compliance status?
A4: Both models are RoHS non-compliant and REACH unaffected.

Q5: What is the significance of the product status difference between the main and substitute part?
A5: VI-25B-CY is obsolete, while VI-25B-CY-B1 is active, which is relevant for long-term sourcing and support.