Equivalent & Substitute Parts for FSK-S15-5U

Part Overview

The CUI Inc. FSK-S15-5U is an enclosed AC/DC converter providing a single 5V, 3A output at up to 15W, with universal AC input (85 ~ 264 VAC) and through-hole mounting in a 7-DIP module package. This model is listed as obsolete. Due to its discontinued status, identification of equivalent or substitute models is essential to maintain existing designs or support repair and replacement where direct drop-in compatibility is critical.

Substiute Parts

FSK-S15-5U

CUI Inc.In Stock: 848FSK-S15-5U Datasheet

Current PartRFQ

FSK-S15-3R3U

CUI Inc.In Stock: 1164FSK-S15-3R3U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute part selection is based strictly on matching fundamental electrical and mechanical parameters including series, power rating, input voltage range, output current, number of outputs, mounting type, package, safety certifications, and environmental ratings. Output voltage is permitted to differ within the same series and output/current envelope if all other operational, dimensional, and regulatory parameters are identical.

Key substitution parameters:

• Series: FSK-S15 (15W)
• Power (Watts): 15 W
• Voltage - Input: 85 ~ 264 VAC
• Current - Output (Max): 3A
• Number of Outputs: 1
• Mounting Type: Through Hole
• Package / Case: 7-DIP Module, 5 Leads
• Size / Dimension: 2.76" x 1.77" x 0.89"
• Efficiency: 75%
• Approval Agency: CB, CE, cUL, UL
• Operating Temperature: -10°C ~ 60°C (With Derating)
• Standard Number: 60950-1
• Application: ITE (Commercial)
• Product Status: Obsolete

Parameter Comparison

Engineering Selection Recommendations

The FSK-S15-5U and FSK-S15-3R3U are both obsolete models in the FSK-S15 (15W) series with verified certification to CB, CE, cUL, and UL standards and compliance to 60950-1. Both parts feature identical mechanical footprints, environmental ratings, and are suited for ITE (Commercial) use. Selection can be based on inventory and required output voltage within otherwise unchanged system parameters.

Frequently Asked Questions (FAQ)

Q1: What key criteria are used to define a substitute power converter in this category?
A1: Substitute selection is based on matching series, power rating, input voltage range, maximum output current, number of outputs, mechanical package, approval agency certifications, and application category.

Q2: Are output voltage differences allowed when selecting substitutes?
A2: Substitutes are included from the same series when all electrical, mechanical, and regulatory parameters align except for output voltage.

Q3: Does the substitute, FSK-S15-3R3U, fit directly into a board designed for FSK-S15-5U?
A3: Both models use the same 7-DIP Module, 5 Leads package and identical mechanical dimensions, supporting drop-in compatibility from a mechanical perspective.

Q4: Does the substitute meet the same certifications and standards as the original?
A4: Yes, both models have approval from CB, CE, cUL, UL and meet standard 60950-1.

Q5: What is the environmental and regulatory compliance status of the substitute?
A5: The substitute part shares the same RoHS and REACH status, as well as ECCN and HTSUS classifications as the original model.