Equivalent & Substitute Parts for PBO-3-S5

Part Overview

The CUI Inc. PBO-3-S5 is an open frame AC/DC converter with a single 5V output rated at 2.5W and a maximum output current of 500mA. With input voltage compatibility ranging from 85–305 VAC and 70–430 VDC, the unit is designed for ITE (Commercial) applications. This model is now classified as obsolete, necessitating the identification of equivalent or substitute models for continued design and production support.

Substiute Parts

PBO-3-S5

CUI Inc.In Stock: 911PBO-3-S5 Datasheet

Current PartRFQ

PBO-3C-5

CUI Inc.In Stock: 1173PBO-3C-5 Datasheet

MFR RecommendedRFQ

PSK-3D-5

CUI Inc.In Stock: 1388PSK-3D-5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped exclusively by matching or exceeding critical parameters, maintaining compatibility with the main unit's 5V output, input voltage range, maximum output current, number of outputs, power rating, mounting style, and environmental requirements. Substitute models offered by CUI Inc., PBO-3C-5 and PSK-3D-5, meet these criteria based on IEC standards compliance, RoHS, and equivalent mounting and rating specifications.

The key parameters considered for substitution are as follows:

• Output voltage: 5V
• Maximum output current: ≥500mA
• Power rating: ≥2.5W
• Number of outputs: 1
• Input voltage range: covering 85–305 VAC
• Mounting type: through hole
• RoHS and compliance certifications

Parameter Comparison

Engineering Selection Recommendations

Given the obsolete status of PBO-3-S5 and the active availability of substitute models, engineering selection should be determined by:

• Continued RoHS and relevant environmental compliance
• Retention or improvement of certification coverage (IEC, CE, cURus, CB Scheme, EN, UL)
• Compatibility with the required application voltages and currents
• Retention of through hole mounting for mechanical consistency
• Verification of certification numbers and standard agency coverage strictly as provided

Frequently Asked Questions (FAQ)

Q: What are the essential substitution criteria for PBO-3-S5?
A: Substitute models must provide a 5V output, support at least 500mA output current, match or exceed the 2.5W power rating, and accept input voltages within 85–305 VAC. Compliance with product certifications is also required.

Q: Are the package types and mechanical dimensions identical between PBO-3-S5 and substitutes?
A: Substitute models maintain through hole mounting, but have differences in module style, lead count, and physical size. Review package descriptions and mechanical footprints for final board layout compatibility.

Q: Do substitute models support the same environmental and safety certifications?
A: Substitute parts specify compliance with RoHS and relevant safety/regulatory standards, with approval agency and standard numbers given. Cross-reference these with the main part to ensure certification requirements are met.

Q: How does efficiency compare among offered substitutes?
A: PBO-3C-5 and PSK-3D-5 both exhibit higher efficiency values than the main PBO-3-S5 model based on provided specification.

Q: Is through hole mounting consistently supported in all substitute options?
A: All listed substitute models utilize through hole mounting, consistent with the main unit’s mechanical integration requirements.