FR302-AP Equivalent & Substitute Parts

Part Overview

The FR302-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 100 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. The FR302-AP operates across a junction temperature range of -55°C to 150°C and complies with RoHS3 standards.

Substiute Parts

FR302-AP

Micro Commercial CoIn Stock: 1139FR302-AP Datasheet

Current PartRFQ

FR302GP-AP

Micro Commercial CoIn Stock: 1039FR302GP-AP Datasheet

DirectRFQ

FR302G A0G

Taiwan Semiconductor CorporationIn Stock: 731FR302G A0G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FR302-AP is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 100 V
• Current - Average Rectified (Io): 3 A
• Voltage - Forward (Vf) (Max) @ If: 1.3 V @ 3 A
• Reverse Recovery Time (trr): 150 ns
• Speed Classification: Fast Recovery ≤ 500ns, > 200mA (Io)
• Package / Case: DO-201AD, Axial
• Mounting Type: Through Hole
• Operating Temperature - Junction: -55°C to 150°C
• RoHS Status: ROHS3 Compliant

Substitute parts are classified into two categories:

Direct Manufacturer Substitute: FR302GP-AP from Micro Commercial Co maintains identical electrical specifications and packaging. This part is active in product status, offering improved reverse leakage characteristics (5 µA vs. 10 µA @ 100 V) and lower capacitance (50 pF vs. 65 pF @ 4V, 1MHz).

Parametric Equivalent: FR302G A0G from Taiwan Semiconductor Corporation meets all mandatory electrical and mechanical parameters. This part is active in product status and demonstrates further reduced capacitance (30 pF @ 4V, 1MHz) while maintaining identical voltage, current, and recovery time specifications.

Parameter Comparison

Engineering Selection Recommendations

FR302GP-AP (Direct Manufacturer Substitute): This part is the primary substitute for the obsolete FR302-AP. Manufactured by the same supplier, it maintains full electrical and mechanical compatibility while offering active product status. The improved reverse leakage specification (5 µA vs. 10 µA @ 100 V) and reduced capacitance (50 pF vs. 65 pF @ 4V, 1MHz) represent performance enhancements without deviation from the core electrical ratings. ROHS3 compliance and unlimited moisture sensitivity level are maintained.

FR302G A0G (Parametric Equivalent): This Taiwan Semiconductor Corporation part satisfies all mandatory electrical and mechanical parameters for direct substitution. Active product status and ROHS3 compliance are confirmed. The further reduced capacitance (30 pF @ 4V, 1MHz) may provide additional benefits in high-frequency applications while maintaining identical voltage, current, and recovery time specifications. This part is suitable for applications where the FR302GP-AP is unavailable.

Both substitute parts are available in active production status, ensuring long-term procurement viability compared to the obsolete FR302-AP.

Frequently Asked Questions (FAQ)

Q: Can FR302GP-AP be used as a direct replacement for FR302-AP in existing designs?

A: Yes. The FR302GP-AP maintains identical electrical specifications (100 V, 3 A, 1.3 V forward voltage, 150 ns recovery time) and identical DO-201AD axial through-hole packaging. The improved reverse leakage and reduced capacitance represent performance enhancements with no negative impact on circuit operation.

Q: What is the difference between FR302GP-AP and FR302G A0G?

A: Both parts meet all mandatory electrical and mechanical parameters. The primary difference is manufacturer: FR302GP-AP is from Micro Commercial Co, while FR302G A0G is from Taiwan Semiconductor Corporation. FR302G A0G exhibits lower capacitance (30 pF vs. 50 pF @ 4V, 1MHz). Both are active in product status and ROHS3 compliant.

Q: Are there any package or mounting differences between these parts?

A: No. All three parts (FR302-AP, FR302GP-AP, and FR302G A0G) use the DO-201AD axial through-hole package and are mounted identically on printed circuit boards.

Q: Why is the FR302-AP classified as obsolete?

A: The FR302-AP is listed as obsolete by the manufacturer. The FR302GP-AP serves as the active replacement from the same manufacturer, offering equivalent functionality with improved electrical characteristics.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Both FR302GP-AP and FR302G A0G are ROHS3 compliant, matching the compliance status of the original FR302-AP.

Q: What is the operating temperature range for these diodes?

A: All three parts operate across a junction temperature range of -55°C to 150°C, providing identical thermal performance specifications.

Q: Can these parts be used interchangeably in high-frequency switching applications?

A: Yes. All parts share identical reverse recovery time (150 ns) and fast recovery speed classification (≤ 500ns, > 200mA). The reduced capacitance in FR302G A0G may provide marginal benefits in high-frequency circuits, but all parts are electrically equivalent for switching performance.