Equivalent & Substitute Parts Reference for PSK-S2C-3

Part Overview

The CUI Inc. PSK-S2C-3 is an enclosed AC/DC converter designed for ITE (Commercial) applications, providing a single output of 3.3V at up to 600mA with an input voltage range of 85 ~ 305 VAC or 120 ~ 430 VDC. The power rating is 2W, and it features through-hole mounting with a 4-DIP module case size of 1.33" x 0.87" x 0.71". The product status is marked as obsolete, making it necessary to identify alternative models with equivalent electrical and mechanical specifications to ensure continued support and replacement in existing designs.

Substiute Parts

PSK-S2C-3

CUI Inc.In Stock: 984PSK-S2C-3 Datasheet

Current PartRFQ

PSK-3D-3

CUI Inc.In Stock: 951PSK-3D-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are identified exclusively based on matching key parameters: output voltage, input voltage range, output current, power rating, mounting type, number of outputs, package/case, and compliance information. Substitution is allowed if these electrical and mechanical parameters align within required tolerances for the application. For the PSK-S2C-3, referenced substitutes must provide a 3.3V single output with compatible current and voltage ratings, through-hole mounting, appropriate regulatory compliance, and similar packaging dimensions.

Parameter Comparison

Engineering Selection Recommendations

Selection between the main part (PSK-S2C-3) and substitute (PSK-3D-3) depends on product status, regulatory compliance, and standard certifications. As the PSK-S2C-3 is obsolete, the PSK-3D-3 is suitable as a substitute, offering active status and updated compliance standards including ROHS3 and CE/cURus approvals. Substitute selection should be based only on alignment of provided electrical ratings, mechanical format, and certification details, with strict adherence to input data.

Frequently Asked Questions (FAQ)

Q1: What are the primary criteria for substituting PSK-S2C-3 with PSK-3D-3?
A1: Primary criteria include matching output voltage (3.3V), compatible output current, input voltage range, mounting type (through hole), enclosure type, and relevant certifications and compliance.

Q2: Are there differences in the physical package dimensions?
A2: Yes, PSK-S2C-3 measures 1.33" x 0.87" x 0.71" while PSK-3D-3 measures 1.00" x 1.00" x 0.69". Ensure mechanical compatibility for the targeted PCB.

Q3: Is PSK-3D-3 compliant with the same regulatory standards as PSK-S2C-3?
A3: Both include the 62368-1 standard. Additional standards and approval agencies differ; selection must remain within the provided certifications.

Q4: What is the impact of the higher output current and power rating in the substitute?
A4: PSK-3D-3 provides up to 900mA and 3W, exceeding PSK-S2C-3’s 600mA and 2W, which is compatible if the application does not require power or size restriction beyond the substitute ratings.

Q5: Is there a difference in RoHS compliance between the two models?
A5: PSK-S2C-3 is RoHS Compliant; PSK-3D-3 is ROHS3 Compliant. Both comply with provided environmental requirements.