PT6405P Equivalent & Substitute Parts Reference

Part Overview

Texas Instruments PT6405P is a non-isolated point-of-load (PoL) DC-DC converter module providing a single fixed output of 3.3V at up to 3A. The part features through hole mounting in a 12-SIP module form factor and operates over an input voltage range of 4.5V to 5.5V with 85% efficiency. The PT6405P has been classified as obsolete, necessitating the identification of compatible substitute models for ongoing designs, repairs, or inventory replacement.

Substiute Parts

PT6405P

Texas InstrumentsIn Stock: 1001PT6405P Datasheet

Current PartRFQ

R-533.3PA

Recom PowerIn Stock: 1097R-533.3PA Datasheet

MFR RecommendedRFQ

R-733.3D

Recom PowerIn Stock: 60046R-733.3D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for PT6405P have been selected based strictly on matching the following required parameters: non-isolated PoL module category, single output configuration, input voltage capability including 4.5V minimum and at least 5.5V maximum, fixed output voltage of 3.3V, maximum output current of 3A, through hole mounting with 12-SIP module package, ITE (Commercial) application suitability, compliance (RoHS3, REACH), and equivalent or wider operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

The PT6405P is obsolete and no longer in production. Substitute models R-533.3PA and R-733.3D are available and maintain compliance status (ROHS3 Compliant, REACH Unaffected), matching mechanical and electrical key parameters. Both substitutes have an active product status, enabling continued procurement for new or existing designs without interruption in compliance or export status.

Frequently Asked Questions (FAQ)

Q1: What are the essential criteria for substituting PT6405P in a design?
A1: The substitute part must be a non-isolated PoL DC-DC converter module, through hole mounted in a 12-SIP package, provide a single 3.3V output at up to 3A, and support at least the minimum input voltage range (4.5V).

Q2: Are package mounting and pin compatibility addressed in the substitute parts?
A2: All listed substitutes utilize the 12-SIP module format and through hole mounting, aligning with the PT6405P’s mechanical requirements for direct replacement.

Q3: Is compliance with RoHS and REACH required for substitution?
A3: Both R-533.3PA and R-733.3D substitute models explicitly list ROHS3 Compliance and REACH Unaffected status, meeting regulatory requirements for restricted substances and environmental standards.

Q4: Are electrical characteristics such as output voltage, current, and input range strictly matched?
A4: Substitute parts R-533.3PA and R-733.3D have identical output voltage (3.3V) and maximum output current (3A), with input ranges at least as wide as required, ensuring direct compatibility.

Q5: How do operating temperature ranges affect the substitution decision?
A5: Substitute parts have broader operating temperature ranges than the original PT6405P specification, remaining within or exceeding the original device’s limits.

Q6: What should be considered regarding part lifecycle and inventory availability?
A6: Substitute parts listed are active in production and available in stock, ensuring continued support and sourcing.