PR1502S-A Equivalent & Substitute Parts

Part Overview

The PR1502S-A is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 100V DC reverse voltage and 1.5A average rectified current in a through-hole DO-41 package. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and production continuity. Substitute parts must maintain electrical compatibility across voltage, current, and thermal specifications while accommodating packaging and availability constraints.

Substiute Parts

PR1502S-A

Diodes IncorporatedIn Stock: 736PR1502S-A Datasheet

Current PartRFQ

GP10B-4002HE3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 1132GP10B-4002HE3/54 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PR1502S-A are selected based on the following critical electrical and mechanical parameters:

Voltage Compatibility: Substitute parts must maintain a DC reverse voltage rating (Vr) of 100V or greater to ensure safe operation within the original design envelope.

Current Rating: The average rectified current (Io) of substitute parts must be rated at or above 1.5A to support the original circuit requirements. Parts with lower current ratings do not qualify as direct substitutes.

Package Compatibility: Substitute parts must utilize through-hole mounting in DO-41 or DO-204AL packages to ensure mechanical and electrical compatibility with existing printed circuit board layouts.

Thermal Range: Operating temperature range must encompass the original specification of -65°C to 150°C junction temperature.

Regulatory Compliance: Substitute parts must maintain ROHS3 compliance and MSL 1 classification to satisfy manufacturing and environmental requirements.

The substitute part GP10B-4002HE3/54 meets voltage and package requirements but operates at a reduced current rating of 1A, which is below the original 1.5A specification. This part is suitable only for applications where the circuit current demand does not exceed 1A.

Parameter Comparison

Engineering Selection Recommendations

Primary Consideration - Product Status: The PR1502S-A is classified as obsolete, while the substitute part GP10B-4002HE3/54 maintains active production status. This distinction is critical for long-term supply chain planning and component availability.

Regulatory Compliance: Both the main part and substitute part achieve ROHS3 compliance and MSL 1 classification, satisfying environmental and manufacturing standards without additional qualification requirements.

Current Rating Limitation: The substitute part GP10B-4002HE3/54 is rated for 1A average rectified current, which is 33% lower than the original PR1502S-A specification of 1.5A. Selection of this substitute is restricted to applications where the actual circuit current demand does not exceed 1A.

Voltage and Package Compatibility: The substitute part maintains the 100V reverse voltage rating and DO-41/DO-204AL through-hole package configuration, ensuring direct mechanical and electrical compatibility with existing circuit board designs.

Speed Classification Difference: The substitute part operates as a standard recovery diode (>500ns), whereas the original part is classified as fast recovery (≤500ns). This difference may affect circuit performance in high-frequency switching applications.

Frequently Asked Questions (FAQ)

Q: Can the GP10B-4002HE3/54 be used as a direct replacement for the PR1502S-A in all applications?

A: No. The substitute part is rated for 1A average rectified current, compared to the original 1.5A specification. Direct substitution is limited to applications where circuit current does not exceed 1A. Applications requiring the full 1.5A rating require alternative parts or design modification.

Q: Are the DO-41 and DO-204AL packages physically identical?

A: The DO-41 and DO-204AL designations refer to the same physical package configuration for axial through-hole diodes. Both the main part and substitute part utilize this package, ensuring mechanical compatibility with existing printed circuit board layouts.

Q: What is the significance of the speed classification difference between fast recovery and standard recovery?

A: Fast recovery diodes (≤500ns) are optimized for high-frequency switching applications where rapid reverse recovery is required. Standard recovery diodes (>500ns) are suitable for lower-frequency rectification applications. The substitute part's standard recovery classification may not be suitable for circuits designed around the fast recovery characteristics of the original part.

Q: Does the substitute part require any additional qualification or testing?

A: Selection of the substitute part is based on provided electrical and mechanical parameters. The substitute part maintains ROHS3 compliance and MSL 1 classification consistent with the original part. Circuit-specific performance validation is the responsibility of the design engineer.

Q: Why is the PR1502S-A classified as obsolete?

A: Obsolete status indicates that the manufacturer has discontinued production. The substitute part GP10B-4002HE3/54 is in active production, providing supply continuity for new designs and production requirements.

Q: Are there other substitute parts available for the PR1502S-A?

A: The provided substitute list includes GP10B-4002HE3/54 and cross-reference 1N4002-G. Additional equivalent parts may exist but are not included in this reference document.