PT4522C Equivalent & Substitute Parts Reference

Part Overview

The Texas Instruments PT4522C is an isolated DC-DC converter module, providing a single 5V DC output at up to 4A from a 36V to 75V input. With a 20W power rating and 1.5kV isolation, this product is designed for ITE (Commercial) applications. The PT4522C series (Excalibur™ PT4520) is currently marked as obsolete, making it necessary to identify qualified equivalent or substitute models for ongoing system maintenance or new designs that must replace existing PT4522C units.

Key Parameters

Parameter	PT4522C
Manufacturer	Texas Instruments
Type	Isolated Module
Number of Outputs	1
Voltage - Input (Min)	36V
Voltage - Input (Max)	75V
Voltage - Output 1	5V
Current - Output (Max)	4A
Power (Watts)	20 W
Voltage - Isolation	1.5 kV
Applications	ITE (Commercial)
Features	UVLO
Operating Temperature	-40°C ~ 85°C
Efficiency	82%
Mounting Type	Surface Mount
Package / Case	12-SIP SMD Module
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)
REACH Status	REACH Unaffected
ECCN	EAR99
HTSUS	8504.40.9580

Substitute Part Grouping Explanation

Substitution is based strictly on the following key parameters: type (isolated module), number of outputs (1), voltage input range, output voltage (5V), current rating (4A), power rating (20W), isolation voltage (≥1.5kV), application compatibility (ITE, Commercial), features (UVLO or equivalent), efficiency, mounting method, package/case format, operating temperature range, RoHS/REACH/ECCN/HTSUS compliance, and moisture sensitivity level (MSL). Only parts meeting these criteria are listed as substitutes.

Parameter Comparison

Parameter	PT4522C (Texas Instruments)	RP20-4805SFW (Recom Power)
Type	Isolated Module	Isolated Module
Number of Outputs	1	1
Voltage - Input (Min)	36V	18V
Voltage - Input (Max)	75V	75V
Voltage - Output 1	5V	5V
Current - Output (Max)	4A	4A
Power (Watts)	20 W	20 W
Voltage - Isolation	1.5 kV	1.6 kV
Applications	ITE (Commercial)	ITE (Commercial)
Features	UVLO	OCP, OVP, SCP, UVLO
Operating Temperature	-40°C ~ 85°C	-40°C ~ 63°C
Efficiency	82%	86%
Mounting Type	Surface Mount	Through Hole
Package / Case	12-SIP SMD Module	6-DIP Module
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS	8504.40.9580	8504.40.9580

Engineering Selection Recommendations

The PT4522C is obsolete. Substitute DC-DC converter models such as Recom Power RP20-4805SFW are listed as active and share compliance with ROHS3, REACH, ECCN EAR99, and HTSUS 8504.40.9580. Selection may be based on certification and regulatory document equivalency as provided; only substitute parts with matching or superior compliance are listed.

Frequently Asked Questions (FAQ)

Q1: What criteria are used to determine an equivalent or substitute for the PT4522C?
A1: Substitution is based only on the explicitly provided parameters: electrical ratings, number of outputs, isolation voltage, features, package, mounting method, compliance status, and moisture sensitivity level.

Q2: Is the Recom Power RP20-4805SFW a compatible replacement for the PT4522C?
A2: Both models deliver a 5V/4A output, 20W, have similar isolation voltages, and meet ROHS3 and REACH compliance. Input voltage and mounting methods differ and should be reviewed against mechanical and system design requirements.

Q3: What should be checked regarding package and mounting when considering substitutes?
A3: The PT4522C uses a surface-mount 12-SIP SMD Module, while the RP20-4805SFW is a through-hole 6-DIP Module. Compatibility must be based on the specific mechanical requirements and PCB layout.

Q4: Are all substitute parts available and active?
A4: The RP20-4805SFW is listed as active. Obsolescence and inventory status are provided for each part.

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