VOFM-5-18 Equivalent & Substitute Parts Reference

Part Overview

The VOFM-5-18 is an open-frame AC/DC converter manufactured by CUI Inc. It features a single 18V output at 280mA with an input range of 85–264 VAC and delivers up to 5W of power. Its key features include medical applications suitability, universal AC input, through-hole mounting, and specific safety and EMC certifications such as CB Scheme, EN, IEC, and UL. The part has been classified as obsolete, making the identification of directly substitutable parts necessary for design continuity, manufacturing maintenance, and component sourcing.

Substiute Parts

VOFM-5-18

CUI Inc.In Stock: 1009VOFM-5-18 Datasheet

Current PartRFQ

EPM15-180-BP-0F0

Astrodyne TDIIn Stock: 1182EPM15-180-BP-0F0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is based strictly on matching the following parameters as provided: output voltage (18V), number of outputs (1), input voltage range, mounting type (through hole), open-frame construction, medical application suitability, and relevant electrical/mechanical compatibility such as package type and RoHS status. Other matched criteria include safety approvals, power/output current capability equal to or exceeding the main part, and compliance with specified standards.

Parameter Comparison

Engineering Selection Recommendations

Selection of the substitute part, EPM15-180-BP-0F0 by Astrodyne TDI, is based on the device meeting or exceeding the number of outputs, output voltage, input voltage range, power rating, mounting type, and medical application suitability as specified for the VOFM-5-18. Both parts are RoHS compliant and have through-hole mounting and 4-DIP module packages. The substitute part holds relevant agency approvals. The status of the main part as obsolete and the active status with inventory availability of the substitute justifies the selection.

Frequently Asked Questions (FAQ)

Q1. What parameters must be matched when substituting VOFM-5-18?
A1. Essential matching parameters are output voltage (18V), number of outputs (1), input voltage range, power or output current capability, mounting type, package/case, application suitability, and RoHS compliance.

Q2. Are the package and mounting type identical between VOFM-5-18 and EPM15-180-BP-0F0?
A2. Both parts use a 4-DIP module and support through-hole mounting.

Q3. How does the output power compare between the two parts?
A3. The EPM15-180-BP-0F0 has a higher maximum power output (12 W compared to 5 W) and a higher maximum output current (670mA vs. 280mA), with identical output voltage.

Q4. Are both parts suitable for medical applications?
A4. Both VOFM-5-18 and EPM15-180-BP-0F0 are specified for medical applications.

Q5. Are compliance and safety certifications equivalent?
A5. Both parts are certified to relevant safety agency standards with specified approval agency listings.

Q6. Is the substitute part RoHS compliant?
A6. Both parts are RoHS compliant according to the provided status fields.

Q7. Do the parts have similar dimensions?
A7. The EPM15-180-BP-0F0 has slightly larger physical dimensions compared to VOFM-5-18, but both use the same nominal package type.