FR303-AP Equivalent & Substitute Parts

Part Overview

The FR303-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. This component is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design and procurement requirements. The FR303-AP operates across a junction temperature range of -55°C to 150°C and complies with ROHS3 standards.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 3 A	V
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	10	µA @ 200 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-201AD, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution of the FR303-AP is determined by electrical and mechanical parameter equivalence within the rectifier diode category. The critical parameters governing substitution are:

Voltage Rating: DC reverse voltage (Vr) must equal or exceed 200 V
Current Rating: Average rectified current (Io) must equal or exceed 3 A
Forward Voltage: Forward voltage drop (Vf) at rated current must not exceed 1.3 V @ 3 A
Recovery Characteristics: Reverse recovery time (trr) must not exceed 150 ns for fast recovery classification
Package Compatibility: DO-201AD axial through-hole package required for mechanical fit
Temperature Range: Operating junction temperature range must accommodate -55°C to 150°C minimum
Compliance: ROHS3 compliance required

Substitute parts are grouped into three categories based on substitution relationship:

Direct Manufacturer Equivalent: FR303GP-AP represents the active production equivalent from the original manufacturer with identical electrical specifications and improved reverse leakage characteristics.

Similar Manufacturer Equivalent: RGP30D-E3/54 from Vishay General Semiconductor meets all electrical and mechanical parameters with extended temperature range capability and tape & reel packaging option.

Parametric Equivalent: FR303G A0G from Taiwan Semiconductor Corporation satisfies all critical electrical parameters with reduced junction capacitance and active product status.

Parameter Comparison

Parameter	FR303-AP (Main)	FR303GP-AP (Direct)	RGP30D-E3/54 (Similar)	FR303G A0G (Parametric)
Manufacturer	Micro Commercial Co	Micro Commercial Co	Vishay General Semiconductor	Taiwan Semiconductor Corporation
Product Status	Obsolete	Active	Active	Active
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A	1.3 V @ 3 A	1.3 V @ 3 A	1.3 V @ 3 A
Reverse Recovery Time (trr)	150 ns	150 ns	150 ns	150 ns
Current - Reverse Leakage @ Vr	10 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V	5 µA @ 200 V
Package / Case	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-65 to 175°C	-55 to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

FR303GP-AP is the primary substitute for FR303-AP applications. This part is manufactured by the original equipment manufacturer, maintains identical electrical specifications, and holds active product status. The FR303GP-AP exhibits improved reverse leakage characteristics (5 µA versus 10 µA) and is available in higher inventory quantities. This part is suitable for direct replacement in existing designs without circuit modification.

RGP30D-E3/54 serves as an alternative substitute when extended operating temperature range (-65°C to 175°C) is required or when tape & reel packaging is preferred for automated assembly processes. This Vishay part meets all electrical parameters and maintains ROHS3 compliance. The RGP30D-E3/54 is part of the SUPERECTIFIER® series and offers the highest inventory availability among substitute options.

FR303G A0G provides a parametric equivalent option from Taiwan Semiconductor Corporation with active product status. This part demonstrates reduced junction capacitance (30 pF versus 65 pF at 4 V, 1 MHz) and improved reverse leakage performance. The FR303G A0G is suitable for applications where lower capacitance characteristics provide circuit performance benefits.

All three substitute parts satisfy the electrical and mechanical requirements of the FR303-AP and maintain compliance with ROHS3 standards and unlimited moisture sensitivity classification.

Frequently Asked Questions (FAQ)

Q: Can FR303GP-AP be used as a direct replacement for FR303-AP?

A: Yes. The FR303GP-AP is the direct manufacturer equivalent with identical electrical specifications, package configuration, and operating temperature range. No circuit modifications are required.

Q: What is the primary difference between FR303GP-AP and RGP30D-E3/54?

A: Both parts meet the electrical requirements of the FR303-AP. The RGP30D-E3/54 offers extended operating temperature range (-65°C to 175°C versus -55°C to 150°C) and is supplied in tape & reel packaging. The FR303GP-AP is supplied in standard packaging and is from the original manufacturer.

Q: Are all substitute parts available in the same package configuration?

A: Yes. All substitute parts use the DO-201AD axial through-hole package, ensuring mechanical compatibility with existing PCB designs and assembly processes.

Q: Does the reduced reverse leakage in substitute parts affect circuit operation?

A: The reduced reverse leakage (5 µA in substitutes versus 10 µA in FR303-AP) represents improved performance characteristics. This change does not negatively affect circuit operation and may improve performance in applications sensitive to leakage current.

Q: Which substitute part has the lowest junction capacitance?

A: The FR303G A0G exhibits the lowest junction capacitance at 30 pF @ 4 V, 1 MHz, compared to 65 pF in the FR303-AP and 50 pF in the FR303GP-AP. The RGP30D-E3/54 does not specify capacitance data.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (FR303GP-AP, RGP30D-E3/54, and FR303G A0G) are ROHS3 compliant and carry unlimited moisture sensitivity classification (MSL 1).

Q: What is the inventory status of each substitute part?

A: FR303GP-AP: 891 pieces in stock; RGP30D-E3/54: 1250 pieces in stock; FR303G A0G: 730 pieces in stock.

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