PBO-8-9 AC/DC Converter 9V 7.92W Equivalent & Substitute Parts

Part Overview

The PBO-8-9 is an open frame AC/DC converter manufactured by CUI Inc. designed to deliver 9V output at 880mA maximum current with 7.92W power capacity. The unit accepts wide-range AC input (85–305 VAC) and DC input (100–430 VDC), making it suitable for household appliances and commercial ITE applications. The PBO-8-9 is classified as obsolete, necessitating identification of active equivalent models to maintain design continuity and ensure ongoing component availability for new production and field replacements.

Substiute Parts

PBO-8-9

CUI Inc.In Stock: 1012PBO-8-9 Datasheet

Current PartRFQ

PBO-15C-9

CUI Inc.In Stock: 859PBO-15C-9 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PBO-8-9 is determined by the following critical parameters:

Electrical Compatibility:

• Output voltage must be 9V
• Input voltage range must support 85–305 VAC and 100–430 VDC
• Output current capacity must equal or exceed 880mA
• Operating temperature range must encompass –40°C to 85°C

Mechanical Compatibility:

• Mounting type must be Through Hole
• Package must be 16-SIP Module with 6 Leads
• Physical dimensions must match or fit within the same footprint (1.75" L × 0.59" W × 0.94" H)

Regulatory Compliance:

• Minimum certifications must include CE and cURus
• RoHS compliance required

The PBO-15C-9 meets all substitution criteria. It maintains identical input/output voltage specifications, identical package configuration, and identical physical dimensions. The PBO-15C-9 provides higher output current capacity (1.67A versus 880mA) and increased power rating (15W versus 7.92W), enabling it to support applications requiring the PBO-8-9 without electrical or mechanical modification.

Parameter Comparison

Engineering Selection Recommendations

The PBO-15C-9 is the direct substitute for the obsolete PBO-8-9. Selection is based on the following engineering factors:

Product Status: The PBO-8-9 is obsolete with no active manufacturing. The PBO-15C-9 is active and in production, ensuring long-term availability and supply chain continuity.

Electrical Equivalence: Both converters deliver 9V output with identical input voltage specifications. The PBO-15C-9 provides 1.67A output current, which exceeds the PBO-8-9 requirement of 880mA. This higher capacity does not create incompatibility; it ensures the substitute can support the original application and applications requiring higher current draw.

Mechanical Equivalence: Both units share identical package configuration (16-SIP Module, 6 Leads), mounting type (Through Hole), and physical dimensions (1.75" L × 0.59" W × 0.94" H). Direct PCB substitution is possible without layout modification.

Regulatory Compliance: The PBO-15C-9 maintains CE and cURus certifications required by the original specification and adds UL certification. The PBO-15C-9 meets ROHS3 compliance, exceeding the RoHS Compliant status of the PBO-8-9.

Efficiency Improvement: The PBO-15C-9 operates at 82% efficiency compared to the PBO-8-9 at 75%, providing improved thermal performance and reduced power dissipation.

Frequently Asked Questions (FAQ)

Q: Can the PBO-15C-9 be used as a direct replacement for the PBO-8-9 without PCB modification?

A: Yes. Both converters use identical 16-SIP Module packaging with 6 leads, identical through-hole mounting, and identical physical dimensions (1.75" L × 0.59" W × 0.94" H). No PCB layout changes are required.

Q: What is the difference in output current capacity between these converters?

A: The PBO-8-9 provides 880mA maximum output current. The PBO-15C-9 provides 1.67A maximum output current. The substitute exceeds the original specification, making it suitable for applications requiring the original current level and applications requiring higher current draw.

Q: Are the input voltage specifications identical?

A: Yes. Both converters accept 85–305 VAC and 100–430 VDC input voltage ranges. Input compatibility is identical.

Q: What certifications does each converter hold?

A: The PBO-8-9 holds CE and cURus certifications. The PBO-15C-9 holds CE, cURus, and UL certifications. The substitute meets or exceeds all original certifications.

Q: Is the PBO-15C-9 RoHS compliant?

A: Yes. The PBO-15C-9 is ROHS3 compliant, which exceeds the RoHS Compliant status of the PBO-8-9.

Q: Why is the PBO-8-9 listed as obsolete?

A: The PBO-8-9 is no longer in active production. The PBO-15C-9 is the active equivalent model from CUI Inc. and is recommended for all new designs and field replacements.

Q: Can the PBO-15C-9 be used in applications originally designed for the PBO-8-9?

A: Yes. The PBO-15C-9 meets all electrical, mechanical, and regulatory requirements of the PBO-8-9. Higher output current and power capacity do not create incompatibility with original applications.