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

Part Overview

The Vicor VI-25B-CX is an isolated module DC-DC converter, providing a single 95V output at up to 790mA from a 100V to 200V DC input. The device is part of the VI-200™ (75W) series and offers a 3 kV isolation voltage, through hole mounting, and full brick packaging. The part is RoHS non-compliant and listed as obsolete. Due to its obsolete status, identifying direct substitutes with equivalent electrical, mechanical, and compliance parameters is necessary for maintaining system functionality and form factor in legacy designs.

Substiute Parts

VI-25B-CX

Vicor CorporationIn Stock: 1180VI-25B-CX Datasheet

Current PartRFQ

VI-25B-CX-B1

Vicor CorporationIn Stock: 951VI-25B-CX-B1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Vicor VI-25B-CX is determined by matching the following key parameters:

• Electrical parameters: input voltage range (100V – 200V), output voltage (95V), output current (790mA), power rating (75W), isolation voltage (3kV), efficiency (90%), number of outputs (1), and available protection features (OCP, OTP, OVP, SCP).
• Mechanical parameters: mounting type (through hole), package/case (full brick), and size/dimensions.
• Environmental and compliance factors: operating temperature range (−25°C to 85°C), RoHS status, REACH status, and MSL.
• Series and application: VI-200™ (75W), ITE (Commercial).

Only parts fully aligned on these parameters are listed as substitutes.

Parameter Comparison

Engineering Selection Recommendations

The Vicor VI-25B-CX is obsolete, while the VI-25B-CX-B1 is active. Both parts are RoHS non-compliant and REACH unaffected. Moisture Sensitivity Level and compliance parameters are identical. The substitute part offers the same essential electrical performance parameters and application suitability. Dimensional differences exist between the models within the full brick form factor and must be evaluated for mechanical compatibility.

Frequently Asked Questions (FAQ)

Q1: What parameters are critical for selecting a substitute for VI-25B-CX?
A1: Substitute selection is based on matching input voltage range, output voltage and current, power rating, isolation voltage, protection features, mounting type, package form, and compliance attributes.

Q2: Are the VI-25B-CX and VI-25B-CX-B1 directly interchangeable?
A2: Both offer equivalent electrical and basic mechanical characteristics. Size differences within the full brick package may affect integration in designs with strict height constraints.

Q3: Are there differences in compliance between the main and substitute parts?
A3: Both VI-25B-CX and VI-25B-CX-B1 are RoHS non-compliant and REACH unaffected, with identical ECCN and HTSUS codes.

Q4: Does the substitute part support all the protection features found in the original?
A4: Overcurrent protection (OCP), overtemperature protection (OTP), overvoltage protection (OVP), and short circuit protection (SCP) are present in both models.

Q5: Are there any moisture sensitivity or storage differences?
A5: Both parts have “Not Applicable” Moisture Sensitivity Level (MSL), ensuring equivalent handling and storage requirements.

Q6: Is the package form and mounting method the same?
A6: Both parts use a full brick package and through hole mounting. Dimensional differences may be present within the same package classification.