Equivalent & Substitute Parts for PSK-S20C-3 (CUI Inc.)

Part Overview

The PSK-S20C-3 by CUI Inc. is an enclosed AC/DC converter with a single 3.3V output, featuring a maximum output current of 3.6A and rated for 12 W power. It supports an input range of 85–264 VAC and 100–370 VDC, and is suitable for ITE (Commercial) applications. The product carries approvals including CB Scheme, EN, IEC, and UL, and meets several standards for safety and electromagnetic compatibility. The device is RoHS compliant, through-hole mounted, and delivered in tray packaging. The PSK-S20C-3 is currently designated as obsolete, making it necessary to identify appropriate substitute models for continued system design or maintenance.

Substiute Parts

PSK-S20C-3

CUI Inc.In Stock: 760PSK-S20C-3 Datasheet

Current PartRFQ

PSK-20D-3

CUI Inc.In Stock: 884PSK-20D-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute selection for AC/DC converter PSK-S20C-3 is strictly based on the following electrical and mechanical key parameters: output voltage (3.3V), maximum output current, power rating, input voltage range, number of outputs, mounting type, package/case, operating temperature, compliance (RoHS, REACH), and regulatory approvals. Only parts matching or exceeding these criteria and detailed in the provided substitute list are considered suitable equivalents for substitution purposes.

Parameter Comparison

Engineering Selection Recommendations

The PSK-S20C-3 is classified as obsolete. The substitute part PSK-20D-3 is designated as active and complies with ROHS3 and REACH requirements. Both devices share the same output voltage, output type, general function, and mounting method. Substitute selection is made strictly based on regulatory certification, compliance status, and matching electrical/mechanical specifications as provided in the comparison table.

Frequently Asked Questions (FAQ)

Q1: What are the critical electrical parameters for substituting PSK-S20C-3?
A1: The output voltage (3.3V), maximum output current, input voltage range, and power rating are the primary criteria for substitution.

Q2: Is package style important in substitution?
A2: Yes, mechanical compatibility such as mounting type and module dimensions, as listed, are necessary for proper substitution.

Q3: Are there compliance or certification differences?
A3: Substitute parts must match or exceed relevant RoHS, REACH, and approval agency criteria stated in the parameter comparison table.

Q4: Can substitute parts have a higher maximum output current or power?
A4: Yes, provided the substitute matches the required output voltage and all other listed compatibility criteria.

Q5: Are operating temperature differences relevant?
A5: Substitution is acceptable as long as the substitute's operating temperature range covers the main part's specified range.

Q6: Is direct electrical or pin compatibility required?
A6: Only the specified mechanical package and mounting type parameters are considered for substitutability within the scope of the provided information.