Equivalent & Substitute Parts Reference for PSK-S25D-9

Part Overview

The PSK-S25D-9 (CUI Inc.) is an enclosed AC/DC converter designed for ITE (Commercial) applications. It provides a single 9V output at up to 2.5A from a universal AC (85 ~ 264 VAC) or DC (100 ~ 370 VDC) input. With a 23W power rating, adjustable output, and through-hole mounting, the PSK-S25D-9 offers robust performance for commercial electronics. This model is classified as Obsolete, necessitating the identification of alternative components with similar electrical and mechanical parameters for continued design and production support.

Substiute Parts

PSK-S25D-9

CUI Inc.In Stock: 847PSK-S25D-9 Datasheet

Current PartRFQ

PSK-30D-9

CUI Inc.In Stock: 1240PSK-30D-9 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are selected strictly based on alignment to key electrical and mechanical parameters provided in the product description. All substitutes must provide:

• One output at 9V DC
• Compatible input voltage range (AC and DC)
• Output current and total power matching or exceeding 2.5A / 23W
• Enclosed construction, through-hole mounting, package/case compatibility
• Operating temperature range: -40°C ~ 85°C (With Derating)
• Regulatory and RoHS compliance as specified
• Identifiable approval agencies and standards

Parameter Comparison

Engineering Selection Recommendations

Selection is dictated by the product status of the PSK-S25D-9 as Obsolete. Substitute selection is justified where the alternative meets or exceeds electrical ratings, input compatibility, regulatory compliance, RoHS status, and mounting requirements specified in the provided data. Size, package/case, and agency approvals are validated directly from the detailed specifications supplied. Certification standards and ECCN must match the application requirements as listed.

Frequently Asked Questions (FAQ)

Q: What key parameters must match for substitution in enclosed AC/DC converters?
A: Voltage and current output ratings, input voltage compatibility, mounting type, regulatory approvals, RoHS compliance, and operational temperature range as specified.

Q: Is PSK-30D-9 a direct substitute for PSK-S25D-9?
A: PSK-30D-9 provides identical output voltage, equal or higher output current and power, compatible input ranges, matching mounting style, and listed regulatory compliance.

Q: Are package/case differences relevant between PSK-S25D-9 and PSK-30D-9?
A: Package form factor and mechanical dimensions are specified for each; selection must ensure compatibility with the intended PCB layout or enclosure as provided.

Q: Can substitutes be used in ITE (Commercial) applications without modification?
A: Substitute use is strictly allowed where application category (ITE, Household Appliances) and certifications are present in the provided data.

Q: Why is substitute selection necessary?
A: The PSK-S25D-9 is classified as obsolete; continued design designs require substitute parts with matching or superior technical and regulatory characteristics.

Q: What compliance certifications must substitutes provide?
A: Certifications listed (CB Scheme, IEC, UL, CE, cURus, UKCA) and applicable standards (62368-1, 60335-1) as specified in the component data.