RL253M-AP Equivalent & Substitute Parts

Part Overview

The RL253M-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 2.5 A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, making identification of equivalent substitute parts necessary for ongoing design support and procurement continuity. The part operates across a junction temperature range of -55°C to 150°C and complies with ROHS3 standards.

Substiute Parts

RL253M-AP

Micro Commercial CoIn Stock: 891RL253M-AP Datasheet

Current PartRFQ

PR1503-T

Diodes IncorporatedIn Stock: 787PR1503-T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RL253M-AP is determined by the following critical electrical and mechanical parameters:

Voltage Rating: The substitute part must maintain a DC reverse voltage rating of 200 V to ensure equivalent circuit protection and reliability.

Current Rating: The substitute part must support the required average rectified current. Parts with lower current ratings may be used in applications where the actual circuit current does not exceed the substitute's rating.

Package and Mounting: The substitute must use the DO-15 through-hole axial package to ensure mechanical and electrical compatibility with existing PCB layouts and assembly processes.

Temperature Range: The substitute must cover the operating junction temperature range or provide equivalent thermal performance for the intended application environment.

Compliance Standards: The substitute must maintain ROHS3 compliance to satisfy regulatory and procurement requirements.

The PR1503-T from Diodes Incorporated qualifies as a substitute based on matching voltage rating (200 V), identical package type (DO-15), compatible mounting method (through-hole), and equivalent compliance status (ROHS3).

Parameter Comparison

Engineering Selection Recommendations

The PR1503-T from Diodes Incorporated is an active substitute for the obsolete RL253M-AP. Both parts share identical voltage ratings (200 V), package specifications (DO-15 through-hole axial), and compliance certifications (ROHS3).

The primary difference is the average rectified current rating: the RL253M-AP is rated for 2.5 A while the PR1503-T is rated for 1.5 A. Selection of the PR1503-T is appropriate for applications where the circuit current does not exceed 1.5 A. For applications requiring the full 2.5 A capacity of the original part, alternative substitutes with higher current ratings must be evaluated.

The PR1503-T exhibits faster recovery characteristics (≤500ns) compared to the standard recovery (>500ns) of the RL253M-AP. This difference does not preclude substitution but represents a performance enhancement in switching applications.

The PR1503-T provides an extended lower temperature operating limit (-65°C versus -55°C), offering broader environmental compatibility.

Both parts maintain equivalent reverse leakage current specifications (5 µA @ 200 V) and are supplied in ROHS3-compliant configurations.

Frequently Asked Questions (FAQ)

Q: Can the PR1503-T directly replace the RL253M-AP in all applications?

A: The PR1503-T is mechanically and electrically compatible with the RL253M-AP in applications where the circuit current does not exceed 1.5 A. If the application requires the full 2.5 A rating of the original part, the PR1503-T is not suitable.

Q: What is the significance of the different recovery speeds?

A: The RL253M-AP has standard recovery (>500ns) while the PR1503-T has fast recovery (≤500ns). Fast recovery reduces switching losses in high-frequency applications. For standard rectification applications, both recovery speeds are functionally equivalent.

Q: Are there package compatibility concerns?

A: Both parts use the DO-15 through-hole axial package. No PCB layout or assembly modifications are required for substitution.

Q: Does the extended temperature range of the PR1503-T affect substitution suitability?

A: The PR1503-T operating range (-65°C to 150°C) encompasses the RL253M-AP range (-55°C to 150°C). The extended lower temperature limit of the substitute provides equivalent or superior performance across all operating conditions.

Q: Are both parts RoHS compliant?

A: Yes, both the RL253M-AP and PR1503-T are ROHS3 compliant, satisfying regulatory requirements for lead-free and restricted substance compliance.

Q: What is the current availability status of these parts?

A: The RL253M-AP is obsolete with 855 pieces in stock. The PR1503-T is active with 711 pieces in stock, providing ongoing procurement availability.