PBO-1-S9 Equivalent & Substitute Parts Reference

Part Overview

The PBO-1-S9 from CUI Inc. is an open frame AC/DC converter designed for ITE (Commercial) applications, delivering a single 9V output at up to 111mA (1W). This model has reached Obsolete status, requiring the identification and analysis of valid equivalent or substitute models with matching or greater electrical and mechanical specifications for continued design-in and supply chain support.

Substiute Parts

PBO-1-S9

CUI Inc.In Stock: 1073PBO-1-S9 Datasheet

Current PartRFQ

PBO-3C-9

CUI Inc.In Stock: 966PBO-3C-9 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined strictly by matching or exceeding the key electrical and mechanical parameters necessary for function and compliance. These include input voltage range, output voltage, maximum output current, output power, number of outputs, mounting style, operating temperature range, package type/size, and applicable approvals. Only devices meeting or exceeding the original specifications are considered valid substitutes.

Parameter Comparison

Engineering Selection Recommendations

Selection of a substitute for the PBO-1-S9 should be made based on the following criteria from the provided data:

• Product status: PBO-1-S9 is Obsolete; PBO-3C-9 is Active.
• Input voltage, output voltage, and operating temperature range: No deviation between the main and substitute part.
• RoHS compliance: Both models are RoHS compliant.
• Certification and approval agency listing: Both parts have certifications, but the approval agencies and standards are not fully identical. Selection must match the necessary certification requirements of the end application by comparing the approval standards listed.
• Device mounting type: Both use through hole mounting, suitable for like-for-like board replacement.
• Output parameters: PBO-3C-9 provides output parameters equal to or greater than PBO-1-S9.

Frequently Asked Questions (FAQ)

Q: What primary parameters are required for substituting an AC/DC converter like the PBO-1-S9?
A: Voltage input range, output voltage, output current, power rating, number of outputs, package compatibility, mounting type, approvals, and compliance status.

Q: Are PBO-1-S9 and PBO-3C-9 cross-compatible for output voltage and current?
A: Both provide a 9V single output. The substitute PBO-3C-9 offers higher output current and power. Output voltage specification is consistent.

Q: Can the PBO-3C-9 fit in all mechanical locations where PBO-1-S9 is used?
A: Both models share an 11.0mm width. Length and height differ (PBO-3C-9 is shorter and lower), and the pinout may differ since packages are specified as 12-SIP Module, 6 Leads (PBO-1-S9) versus 6-SIP Module (PBO-3C-9). Mechanical and PCB layout fit must be verified.

Q: Do both models have the same regulatory and safety approvals?
A: Approval agency and standard listing are not identical. The PBO-1-S9 includes CB Scheme, EN, IEC, UL, while PBO-3C-9 lists CE, cURus. Specific application certification requirements must be cross-checked with these agency details.

Q: Does RoHS compliance status match between the original and substitute parts?
A: Both PBO-1-S9 and PBO-3C-9 are RoHS Compliant, meeting current environmental regulation requirements.