Equivalent & Substitute Parts Reference for CUI Inc. PBO-8-3

Part Overview

The CUI Inc. PBO-8-3 is an open frame AC/DC converter designed to provide a single 3.3V output at a maximum current of 1.6A, delivering up to 5.28W of power. It supports input ranges from 85 ~ 305 VAC and 100 ~ 430 VDC. The product is categorized for use in household appliances and ITE (commercial) applications, featuring a through-hole mounting in a 16-SIP Module, 6 Leads package. The part status is listed as obsolete, creating a requirement for alternative models to maintain design continuity and supply availability.

Substiute Parts

PBO-8-3

CUI Inc.In Stock: 1350PBO-8-3 Datasheet

Current PartRFQ

PBO-15C-3

CUI Inc.In Stock: 970PBO-15C-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is based strictly on matching critical electrical and mechanical parameters relevant to open frame AC/DC converters. The substitute part, PBO-15C-3, shares the same input voltage range, output voltage, output type, mounting method, operating temperature range, package/case, dimensions, application category, and approval agency categories. Higher output current and power must be verified within allowed system operation. Substitution logic considers product status and compliance markings for regulatory continuity.

Key parameters for substitution:

• Voltage - Input
• Voltage - Output 1
• Current - Output (Max)
• Power (Watts)
• Operating Temperature
• Mounting Type
• Package / Case
• Size / Dimension
• Approval Agency
• RoHS Status

Parameter Comparison

Engineering Selection Recommendations

The main part, PBO-8-3, is obsolete. The substitute, PBO-15C-3, is active and compliant with RoHS3 requirements. Both parts share similar certifications, including CE and cURus, with the substitute also certified by UL. Moisture Sensitivity Level and classification codes (ECCN, HTSUS) are comparable. Selection can be made with reference to product status, compliance, and regulatory approval without introducing additional criteria.

Frequently Asked Questions (FAQ)

Q1: What parameters must match for an AC/DC converter substitution in this category?
Substitution requires matching input voltage range, output voltage, mounting type, package/case, operating temperature, and application type. Regulatory approvals and RoHS compliance must also align.

Q2: Does the different output current or power of the substitute affect compatibility?
As the output voltage, input range, and package remain unchanged, substitution is viable when higher current and power are acceptable in the application.

Q3: Are the form factor and mounting arrangements the same for PBO-8-3 and PBO-15C-3?
Both utilize the 16-SIP Module with 6 leads and through-hole mounting. Dimensions are identical.

Q4: Does the substitute maintain compliance with required certifications and standards?
Both parts are CE and cURus-certified; PBO-15C-3 adds UL approval. Both are RoHS compliant.

Q5: Can the substitute be used in the same inventory and assembly process as the original?
Moisture Sensitivity Level and physical package are the same for both models, supporting consistent assembly practices.

Q6: Is there any difference in operating temperature performance?
Both models provide an operating temperature range of -40°C ~ 85°C (with derating), suitable for similar environments.