SW003A5F91 Equivalent & Substitute DC DC Converter Reference

Part Overview

The SW003A5F91, manufactured by OmniOn Power, is an isolated DC-DC converter module with a single 3.3V output at a maximum current of 3.5A. It supports an input voltage range of 36V to 75V, delivers a peak power output of 12W, and provides 2.25 kV isolation. Key features include remote on/off, overcurrent protection (OCP), overvoltage protection (OVP), and undervoltage lockout (UVLO). This module, intended for ITE (Commercial) applications, is supplied in a 6-DIP through-hole package and is now listed as obsolete. When a product is obsolete, identifying alternative models with matching specifications and form factor is essential to maintain system compatibility and performance.

Substiute Parts

SW003A5F91

OmniOn PowerIn Stock: 999SW003A5F91 Datasheet

Current PartRFQ

SW003A5F91Z

OmniOn PowerIn Stock: 1484SW003A5F91Z Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for SW003A5F91 are selected strictly based on matching electrical and mechanical parameters, including input voltage range (36V–75V), output voltage (3.3V), maximum output current (3.5A), power rating (12W), isolation voltage (2.25 kV), features (remote on/off, OCP, OVP, UVLO), efficiency, mounting type (through hole), package/case (6-DIP module), and operating temperature range (-40°C to 85°C). Only parts with identical specifications and package dimensions are considered valid substitutes.

Key parameters for substitution:

• Input voltage range
• Output voltage and current
• Power rating
• Isolation voltage
• Features
• Mounting type and package dimensions
• Operating temperature range
• Efficiency

Parameter Comparison

Engineering Selection Recommendations

The main part, SW003A5F91, is obsolete. The SW003A5F91Z is listed as active and matches all key electrical and mechanical parameters. The SW003A5F91Z is RoHS compliant and has an MSL of 1 (Unlimited), while SW003A5F91 is REACH unaffected and not applicable for MSL. Selection is based on continued product status and compliance with RoHS directives. No further criteria are used beyond the provided parameters.

Frequently Asked Questions (FAQ)

Q1: What are the key substitution criteria for SW003A5F91?
A1: Substitute parts must match input voltage range (36V–75V), output voltage (3.3V), maximum output current (3.5A), power rating (12W), isolation voltage (2.25 kV), protection features, mounting style, package dimensions, and operating temperature.

Q2: Is mechanical compatibility ensured between SW003A5F91 and SW003A5F91Z?
A2: Both parts feature the same 6-DIP module package with identical size/dimensions (1.10" L x 0.96" W x 0.34" H) and through-hole mounting type.

Q3: Does the substitute SW003A5F91Z offer the same features as the obsolete part?
A3: SW003A5F91Z provides remote on/off, overcurrent, overvoltage, and undervoltage protection, as well as efficiency, temperature range, and control features matching the original SW003A5F91.

Q4: Are there any differences in compliance or certifications between the parts?
A4: SW003A5F91Z is specified as RoHS compliant with MSL 1 (Unlimited). SW003A5F91 is REACH unaffected and MSL is not applicable.

Q5: How is electrical compatibility maintained when substituting SW003A5F91?
A5: SW003A5F91Z matches all key electrical characteristics including input/output voltages, current, and isolation voltage, ensuring system performance continuity.

Q6: What package considerations should be evaluated in substitution?
A6: Both parts use the 6-DIP module through-hole package with identical measurements, ensuring drop-in mechanical fit.