Equivalent & Substitute Parts for PBO-3-S3.3-B

Part Overview

PBO-3-S3.3-B by CUI Inc. is an open frame AC/DC converter delivering 3.3V at up to 600mA from a wide input voltage range (85 ~ 305 VAC, 70 ~ 430 VDC) with a maximum output power of 2W. This part is designed for ITE (Commercial) applications, featuring through hole mounting, environmental operating temperatures from -40°C to 85°C (with derating), and global regulatory certifications. The PBO-3-S3.3-B is classified as obsolete, necessitating identification of replacement or substitute models to maintain form, fit, and function continuity in legacy and new electronic assemblies.

Substiute Parts

PBO-3-S3.3-B

CUI Inc.In Stock: 807PBO-3-S3.3-B Datasheet

Current PartRFQ

PBO-3C-3

CUI Inc.In Stock: 997PBO-3C-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for PBO-3-S3.3-B is determined by matching all critical functional parameters: input voltage range, output voltage and current, power rating, output count, mounting type, package configuration, environmental temperature range, and compliance certifications. The substitute part listed, PBO-3C-3, matches these core criteria within the variations provided. Key parameters used for substitution include:

• Input voltage range (85 ~ 305 VAC, 70 ~ 430 VDC)
• Output voltage (3.3V)
• Output current (600mA)
• Power (Watt) rating
• Operating temperature
• Mounting type (Through Hole)
• Application suitability (ITE/Commercial, Household Appliances)
• Regulatory approval and RoHS compliance

Parameter Comparison

Engineering Selection Recommendations

Selection of PBO-3C-3 as a substitute for PBO-3-S3.3-B is based on the product lifecycle (active status for PBO-3C-3, obsolete for PBO-3-S3.3-B), regulatory certification, and verified RoHS compliance. Only parts meeting the required compliance standards, input/output parameters, and mounting configurations are considered.

Frequently Asked Questions (FAQ)

Q: What primary criteria govern substituting PBO-3-S3.3-B with PBO-3C-3?
A: Input voltage range, output voltage/current, power rating, operating temperature, mounting type, regulatory certification, RoHS compliance, and package configuration are the critical substitution parameters.

Q: Can the PBO-3C-3 be used as a direct replacement in existing designs using PBO-3-S3.3-B?
A: PBO-3C-3 matches all key electrical specifications and compliance criteria provided. Mechanical package differences must be considered for form and fit compatibility.

Q: Are there major physical differences between the PBO-3-S3.3-B and PBO-3C-3?
A: PBO-3-S3.3-B uses a 12-SIP Module with 6 leads (1.38" x 0.71" x 0.43"), while PBO-3C-3 uses a 6-SIP Module (1.04" x 0.43" x 0.49"). Mechanical compatibility should be confirmed.

Q: Are compliance certifications equivalent between the two models?
A: Each part is RoHS compliant, but approval agency and standards numbers differ based on the manufacturer’s documentation.

Q: What should be considered regarding inventory and status?
A: PBO-3-S3.3-B is listed as obsolete; PBO-3C-3 is active and available in stock, making it suitable for ongoing or future procurement.