FR503-TP Equivalent & Substitute Parts Reference

Part Overview

The FR503-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200V DC reverse voltage and 5A average rectified current in a DO-201AD axial through-hole package. This component is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support, maintenance, and production continuity. The FR503-TP features fast recovery characteristics with a reverse recovery time of 150 nanoseconds, suitable for applications requiring rapid switching performance in power supply and rectification circuits.

Substiute Parts

FR503-TP

Micro Commercial CoIn Stock: 1174FR503-TP Datasheet

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GP30D-E3/54

Vishay General Semiconductor - Diodes DivisionIn Stock: 830GP30D-E3/54 Datasheet

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SF64G B0G

Taiwan Semiconductor CorporationIn Stock: 805SF64G B0G Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the FR503-TP are selected based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

1. Voltage Rating: All substitutes must maintain the 200V DC reverse voltage specification to ensure safe operation in the original circuit.

2. Package and Mounting: All substitutes use the DO-201AD axial through-hole package, ensuring mechanical and electrical compatibility with existing PCB layouts and assembly processes.

3. Current Rating: Substitute parts are evaluated based on average rectified current capacity. Parts rated at or above 5A provide direct functional equivalence. Parts rated below 5A (such as the 3A-rated GP30D-E3/54) are listed as substitutes but with reduced current capacity and require circuit evaluation.

4. Recovery Characteristics: The FR503-TP employs fast recovery technology (≤500ns). Substitutes are grouped by recovery speed classification, with fast recovery parts providing closer electrical performance alignment.

5. Compliance and Status: All substitutes maintain ROHS3 compliance and moisture sensitivity level 1 (unlimited), matching the original part's environmental and regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

GP30D-E3/54 (Vishay General Semiconductor - Diodes Division)

The GP30D-E3/54 is an active product with ROHS3 compliance and extended operating temperature range (-65°C to 175°C). This part shares the 200V voltage rating and DO-201AD package with the FR503-TP. However, the GP30D-E3/54 is rated for 3A average rectified current, which is below the original 5A specification. Additionally, this part employs standard recovery technology (>500ns) rather than fast recovery, resulting in a reverse recovery time of 5 microseconds compared to the FR503-TP's 150 nanoseconds. Selection of this part is appropriate only for applications where the 3A current rating is sufficient and slower switching performance is acceptable.

SF64G B0G (Taiwan Semiconductor Corporation)

The SF64G B0G is an active product with ROHS3 compliance and REACH unaffected status. This part maintains the 200V voltage rating, DO-201AD package, and through-hole mounting of the FR503-TP. The SF64G B0G is rated for 6A average rectified current, exceeding the original 5A specification, and employs fast recovery technology with a reverse recovery time of 35 nanoseconds, which is faster than the FR503-TP's 150 nanoseconds. The operating temperature range matches the FR503-TP (-55°C to 150°C). This part provides direct functional equivalence with enhanced current capacity and improved switching performance.

Frequently Asked Questions (FAQ)

Q: Can the GP30D-E3/54 be used as a direct replacement for the FR503-TP?

A: The GP30D-E3/54 shares the same 200V voltage rating and DO-201AD package, but has a reduced current rating of 3A versus the FR503-TP's 5A. Additionally, it uses standard recovery technology rather than fast recovery. This part is suitable only for applications where 3A current capacity is sufficient and slower switching speed is acceptable.

Q: What are the key differences between the SF64G B0G and the FR503-TP?

A: Both parts maintain the 200V voltage rating, DO-201AD package, and through-hole mounting. The SF64G B0G has a higher current rating (6A versus 5A) and faster reverse recovery time (35ns versus 150ns). Operating temperature ranges are identical. The SF64G B0G is an active product, whereas the FR503-TP is obsolete.

Q: Are all substitute parts available in the same packaging format?

A: Yes. All substitute parts listed use the DO-201AD axial through-hole package, ensuring mechanical compatibility with existing PCB designs and assembly processes. The GP30D-E3/54 is supplied in Tape & Reel packaging, while the SF64G B0G packaging format is not specified in the provided data.

Q: Do the substitute parts meet the same compliance requirements as the FR503-TP?

A: Yes. Both substitute parts are ROHS3 compliant and have moisture sensitivity level 1 (unlimited), matching the FR503-TP's environmental and regulatory compliance profile.

Q: What is the significance of recovery time differences between these parts?

A: Recovery time affects switching speed in rectification circuits. The FR503-TP has a 150ns reverse recovery time (fast recovery). The GP30D-E3/54 has a 5 microsecond recovery time (standard recovery), which is significantly slower. The SF64G B0G has a 35ns recovery time, which is faster than the FR503-TP. Selection depends on circuit switching frequency requirements.

Q: Can the SF64G B0G be used in all applications where the FR503-TP was used?

A: The SF64G B0G provides equivalent or superior electrical performance in all key parameters: matching voltage rating, exceeding current capacity, and providing faster switching. It is suitable for direct substitution in applications originally designed for the FR503-TP.