Equivalent & Substitute Parts: TDK-Lambda PFE300S-28 AC/DC Converter

Part Overview

The TDK-Lambda Americas Inc PFE300S-28 is an enclosed AC/DC converter designed for commercial ITE (Information Technology Equipment) applications. It features a single output of 28V at a maximum current of 10.8A and supports an input voltage range of 85 ~ 265 VAC. This 300W converter is provided in an 11-DIP full brick module and is certified to CE and cULus (60950-1) standards. The product is classified as obsolete, necessitating the identification of substitute models to maintain compatibility with existing designs and ensure continued product availability.

Substiute Parts

PFE300S-28

TDK-Lambda Americas IncIn Stock: 5216PFE300S-28 Datasheet

Current PartRFQ

PFE300SA-28

TDK-Lambda Americas IncIn Stock: 1539PFE300SA-28 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution criteria are strictly based on parameters necessary for electrical and mechanical compatibility. The substitute part is grouped according to:

• Input Voltage Range (85 ~ 265 VAC)
• Output Voltage and Current (28V, 10.8A)
• Power Output (≥300 W)
• Type (Enclosed, 1 Output)
• Mechanical Package (11-DIP Module, Full Brick; identical size/dimension)
• Application (ITE Commercial)
• Mounting Type (Through Hole)
• Regulatory Approvals (CE, UL/CSA/CULus; standard numbers as provided)

Only parts matching these parameters are considered substitutes.

Parameter Comparison

Engineering Selection Recommendations

The PFE300S-28 is marked as obsolete, which creates a need for replacement in ongoing designs and service requirements. The PFE300SA-28 matches all principal electrical and mechanical parameters, retaining identical input, output, power rating, package style, physical dimensions, and mounting type. It continues to hold required agency approvals and complies with applicable standards as provided. Based solely on product status, compliance, and certifications, PFE300SA-28 is a technically valid substitute for applications where the PFE300S-28 was used.

Frequently Asked Questions (FAQ)

Q1: What electrical parameters are required for substitution between PFE300S-28 and PFE300SA-28?
A1: Substitution requires matching input voltage range (85 ~ 265 VAC), output voltage (28V), output current (10.8A), and power rating (≥300 W).

Q2: Are mechanical dimensions and mounting type compatible between the two?
A2: Both models use a 11-DIP full brick module with identical dimensions (4.60" L x 2.40" W x 0.50" H) and through hole mounting, ensuring drop-in compatibility.

Q3: Are certifications and standards consistent between these converters?
A3: Both are certified to CE and UL standards (60950-1), with the substitute also listing CSA and 62368-1.

Q4: Is the substitute part available for immediate replacement in existing designs?
A4: The substitute, PFE300SA-28, is active and available in inventory.

Q5: How many output channels are supported by each part?
A5: Both PFE300S-28 and PFE300SA-28 support a single output channel.

Q6: Is there any difference in the enclosure type or form factor?
A6: Both are enclosed AC/DC converters with the same package form factor and enclosure type.