RL255M-AP Equivalent & Substitute Parts

Part Overview

The RL255M-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 600V DC reverse voltage and 2.5A average rectified current in a DO-15 (DO-204AC) axial through-hole package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The RL255M-AP operates across a junction temperature range of -55°C to 150°C and complies with ROHS3 standards.

Substiute Parts

RL255M-AP

Micro Commercial CoIn Stock: 1242RL255M-AP Datasheet

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RL255GP-AP

Micro Commercial CoIn Stock: 879RL255GP-AP Datasheet

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3A60 A0G

Taiwan Semiconductor CorporationIn Stock: 11313A60 A0G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RL255M-AP is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Voltage - DC Reverse (Vr) (Max): 600 V minimum
• Current - Average Rectified (Io): 2.5 A minimum
• Mounting Type: Through Hole
• Package / Case: DO-15 or DO-204AC compatible axial configuration
• Operating Temperature Range: -55°C to 150°C minimum
• Recovery Speed: Standard Recovery >500ns, > 200mA (Io)

Substitute Parts Identified:

1. RL255GP-AP (Micro Commercial Co) - Direct equivalent with identical electrical ratings and active product status. Differs in packaging format (Tape & Box vs. standard) and forward voltage specification (1.1 V vs. 1 V).

2. 3A60 A0G (Taiwan Semiconductor Corporation) - Functional substitute with higher current rating (3A vs. 2.5A) and identical voltage specifications. Maintains all thermal and compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

RL255GP-AP Selection: The RL255GP-AP is the primary substitute for the obsolete RL255M-AP. Both parts share the same base product number (RL255) and are manufactured by Micro Commercial Co. The RL255GP-AP maintains identical electrical specifications for voltage and current ratings, with active product status ensuring long-term availability. The forward voltage specification increases from 1 V to 1.1 V at rated current, which remains within acceptable tolerance for general-purpose rectification applications. The RL255GP-AP is supplied in Tape & Box packaging format. Both parts comply with ROHS3 standards and carry MSL Level 1 classification.

3A60 A0G Selection: The 3A60 A0G from Taiwan Semiconductor Corporation serves as a functional substitute with enhanced current capacity (3A vs. 2.5A). This part maintains the 600V reverse voltage rating and identical thermal operating range. The higher current rating provides design margin for applications requiring increased rectification capacity. The 3A60 A0G is packaged in DO-204AC (DO-15) format, matching the original package specification. This part carries active product status and ROHS3 compliance with REACH Unaffected designation.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and MSL Level 1 classification, ensuring compatibility with standard manufacturing and storage protocols. The ECCN classification (EAR99) and HTSUS code (8541.10.0080) remain consistent across all parts.

Frequently Asked Questions (FAQ)

Q: Can RL255GP-AP be used as a direct replacement for RL255M-AP?

A: Yes. The RL255GP-AP is a direct equivalent with identical voltage (600V) and current (2.5A) ratings, matching thermal specifications (-55°C to 150°C), and equivalent recovery speed characteristics. The primary difference is packaging format (Tape & Box vs. standard) and a marginal increase in forward voltage (1.1V vs. 1V). Both parts comply with ROHS3 standards.

Q: What is the difference between the DO-15 and R-3 package formats?

A: Both are axial through-hole packages for rectifier diodes. The DO-15 (DO-204AC) and R-3 are industry-standard designations for similar form factors. The RL255GP-AP uses R-3 designation while the RL255M-AP uses DO-15. Physical compatibility depends on PCB layout and lead spacing specifications.

Q: Why is the 3A60 A0G rated for 3A instead of 2.5A?

A: The 3A60 A0G is a higher-capacity variant of the same 600V rectifier family. The increased current rating (3A vs. 2.5A) provides additional design margin and thermal headroom for applications requiring higher rectification capacity while maintaining identical voltage specifications and thermal operating range.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The RL255M-AP, RL255GP-AP, and 3A60 A0G all carry ROHS3 Compliant status, ensuring compatibility with environmental and regulatory requirements.

Q: What is the significance of the MSL Level 1 classification?

A: MSL Level 1 indicates unlimited moisture sensitivity level, meaning the component has no moisture-related storage or handling restrictions. All three parts carry this classification, simplifying inventory management and manufacturing processes.

Q: Can the 3A60 A0G be used in applications designed for 2.5A operation?

A: Yes. The 3A60 A0G maintains the same 600V reverse voltage rating and thermal operating range as the RL255M-AP. The higher current rating (3A) is compatible with 2.5A applications, providing additional design margin without compromising performance.

Q: What is the difference in capacitance between these parts?

A: The RL255M-AP specifies 35pF at 4V/1MHz, the RL255GP-AP specifies 40pF, and the 3A60 A0G specifies 27pF. These variations are within acceptable ranges for general-purpose rectification and do not affect substitution compatibility for standard applications.