PDM2-S5-D9-D Equivalent & Substitute Parts Reference

Part Overview

PDM2-S5-D9-D is an isolated DC-DC converter module by CUI Inc., delivering dual outputs of +9V and -9V at 111mA each, with a total output power of 2W. It supports an input voltage range of 4.5V to 5.5V, features 1.5kV isolation, and is certified for ITE commercial applications. The product is obsolete, making it necessary to identify substitute models that satisfy equivalent electrical and mechanical requirements for continued production or maintenance.

Substiute Parts

PDM2-S5-D9-D

CUI Inc.In Stock: 1104PDM2-S5-D9-D Datasheet

Current PartRFQ

PDME2-S5-D9-D

CUI Inc.In Stock: 1154PDME2-S5-D9-D Datasheet

MFR RecommendedRFQ

PDME2-S5-D9-S

CUI Inc.In Stock: 983PDME2-S5-D9-S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is determined by matching the following key parameters: electrical function (isolated DC-DC converter), dual output voltages (+9V and -9V), equal maximum output current (111mA per channel), compatible input voltage range (4.5V – 5.5V), output power (2W), isolation voltage (1.5kV), similar efficiency, through-hole mounting, and RoHS compliance. Package size and pin configuration are noted for package compatibility. Product status is considered, allowing active parts as substitutes for obsolete models. Available safety and standards certifications are aligned where specified.

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute parts is justified by matching electrical performance, isolation, efficiency, RoHS status, and through-hole mounting. Substitute parts PDME2-S5-D9-D and PDME2-S5-D9-S are catalogued as active, ensuring supply. Substitute approvals—such as cURus and compliance with 62368-1—are confirmed for both substitutes. Standard numbers differ from the original, and the PDME2 series has package variations compared to the original PDM2 series.

Frequently Asked Questions (FAQ)

Q1: What parameters qualify PDME2-S5-D9-D and PDME2-S5-D9-S as substitutes for PDM2-S5-D9-D?
A1: Replacement is based on matching output configuration (+9V, -9V at 111mA each), input voltage range (4.5V–5.5V), isolation voltage (1.5kV), through-hole mounting, application class (ITE Commercial), and equivalent or superior efficiency.

Q2: Are there any differences in the package type or pinout?
A2: The original PDM2-S5-D9-D uses a 14-DIP Module with 6 leads (0.80” x 0.40” x 0.32”), while substitutes PDME2-S5-D9-D and PDME2-S5-D9-S use a 7-SIP Module with 5 leads (0.77” x 0.28” x 0.40”). Dimensional and lead differences should be cross-checked for fit within the target design.

Q3: Are compliance and safety approvals equivalent?
A3: The original has CB Scheme, EN, IEC, and UL with 55024; 55032 Class A; 60950-1. Substitutes are listed with cURus and conform to 62368-1. Only fields given in the data are considered.

Q4: Do these substitute parts maintain RoHS and REACH status?
A4: Both the original and substitute PDME2-S5-D9-S are listed as RoHS compliant and REACH unaffected where provided.

Q5: Will thermal and efficiency parameters be affected?
A5: Both the original and substitutes support -40°C to 105°C (with derating) and efficiencies are similar at 83% to 85%, based on provided specifications.