FR301GP-TP Equivalent & Substitute Parts

Part Overview

The FR301GP-TP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 50 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Identifying equivalent and substitute parts is necessary for ongoing maintenance, repair, and legacy system support where the original part is no longer readily available or when design flexibility permits component selection from active product lines.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A	V
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 50 V
Package / Case	DO-201AD, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55°C ~ 150°C	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the FR301GP-TP are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical or functionally equivalent electrical specifications across all critical parameters: 50 V reverse voltage rating, 3 A average rectified current, 1.3 V forward voltage drop at rated current, 150 ns reverse recovery time, and DO-201AD axial through-hole package. These parts are direct functional replacements with no circuit redesign required.

Similar Substitutes share the same package, voltage rating, and mounting type but operate at higher current ratings (5 A or 6 A). These parts are suitable for applications where the circuit can tolerate higher current capacity without adverse effects, provided thermal and mechanical constraints are satisfied.

Substitution eligibility is determined by:

Identical or higher voltage rating (50 V minimum)
Equal or higher current rating (3 A minimum)
Identical package and mounting type (DO-201AD, Through Hole)
Compatible operating temperature range
Compliance with applicable regulatory standards (RoHS3, REACH)

Parameter Comparison

Parameter	FR301GP-TP	FR301G	PG300R_R2_00001	EGP51A-E3/D	SF61G B0G
Manufacturer	Micro Commercial Co	Taiwan Semiconductor Corporation	Panjit International Inc.	Vishay General Semiconductor - Diodes Division	Taiwan Semiconductor Corporation
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	50 V	50 V
Current - Average Rectified (Io)	3 A	3 A	3 A	5 A	6 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 3 A	1.3 V @ 3 A	1.3 V @ 3 A	960 mV @ 5 A	975 mV @ 6 A
Reverse Recovery Time (trr)	150 ns	150 ns	150 ns	50 ns	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 50 V	5 µA @ 50 V	1 µA @ 50 V	5 µA @ 50 V	5 µA @ 50 V
Package / Case	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-65°C ~ 175°C	-55°C ~ 150°C
Product Status	Not For New Designs	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS Unaffected	ROHS3 Compliant

Engineering Selection Recommendations

Parametric Equivalents (Direct Replacements)

FR301G and PG300R_R2_00001 are parametric equivalents to the FR301GP-TP, offering identical electrical performance across all critical specifications. Both parts are classified as Active products, ensuring long-term availability and supply chain stability. FR301G is manufactured by Taiwan Semiconductor Corporation and maintains full compliance with RoHS3 and REACH standards. PG300R_R2_00001, supplied by Panjit International Inc., offers improved reverse leakage characteristics (1 µA versus 5 µA at 50 V) while maintaining identical forward voltage and recovery time specifications. Both parts are suitable for direct substitution in legacy system repairs and ongoing production support.

Higher Current Substitutes (Circuit-Dependent Selection)

EGP51A-E3/D and SF61G B0G provide higher current ratings (5 A and 6 A respectively) while maintaining the 50 V voltage rating and DO-201AD package. EGP51A-E3/D, manufactured by Vishay General Semiconductor - Diodes Division under the SUPERECTIFIER® series, features superior reverse recovery time (50 ns versus 150 ns) and an extended operating temperature range (-65°C to 175°C). SF61G B0G, from Taiwan Semiconductor Corporation, offers the fastest reverse recovery time (35 ns) among all listed substitutes. These higher-current parts are suitable for applications where circuit design permits increased current capacity without thermal or mechanical constraints. Selection between these options depends on specific application requirements for switching speed and thermal performance.

Compliance and Regulatory Considerations

All substitute parts maintain RoHS3 compliance and REACH unaffected status, ensuring compatibility with current environmental and regulatory requirements. The transition from the end-of-life FR301GP-TP to any active substitute part supports long-term supply chain sustainability and regulatory compliance for ongoing system support.

Frequently Asked Questions (FAQ)

Q: Can FR301G be used as a direct replacement for FR301GP-TP?

A: Yes. FR301G is a parametric equivalent with identical voltage rating (50 V), current rating (3 A), forward voltage (1.3 V @ 3 A), reverse recovery time (150 ns), and operating temperature range (-55°C to 150°C). The DO-201AD axial through-hole package is identical. No circuit modifications are required.

Q: What is the difference between parametric equivalents and higher-current substitutes?

A: Parametric equivalents (FR301G, PG300R_R2_00001) maintain the same 3 A current rating and all electrical specifications as the original FR301GP-TP. Higher-current substitutes (EGP51A-E3/D at 5 A, SF61G B0G at 6 A) provide increased current capacity. Higher-current parts are suitable only if the circuit design permits the increased current without adverse thermal or mechanical effects.

Q: Is the DO-201AD package the same across all substitute parts?

A: Yes. All listed substitute parts use the DO-201AD axial through-hole package. Physical dimensions, lead spacing, and mounting characteristics are identical, allowing direct mechanical substitution on printed circuit boards.

Q: What does "Not For New Designs" mean for the FR301GP-TP?

A: This designation indicates the part has reached end-of-life status and is no longer recommended for new product development. Existing inventory may be available for legacy system support and repairs, but long-term supply cannot be guaranteed. Active substitute parts (FR301G, PG300R_R2_00001, EGP51A-E3/D, SF61G B0G) are recommended for ongoing production and new applications.

Q: How do reverse recovery time differences affect circuit performance?

A: Reverse recovery time (trr) determines how quickly the diode transitions from conducting to blocking state. The FR301GP-TP and parametric equivalents have 150 ns recovery time. EGP51A-E3/D (50 ns) and SF61G B0G (35 ns) offer faster switching. Faster recovery reduces switching losses and electromagnetic interference in high-frequency applications. Selection depends on circuit switching frequency and performance requirements.

Q: Are all substitute parts RoHS3 compliant?

A: FR301G, PG300R_R2_00001, and SF61G B0G are explicitly RoHS3 compliant. EGP51A-E3/D is listed as RoHS Unaffected, meaning it does not contain restricted substances but is not formally certified to RoHS3. For applications requiring explicit RoHS3 certification, FR301G, PG300R_R2_00001, or SF61G B0G are appropriate selections.

Q: Can PG300R_R2_00001 be used in place of FR301GP-TP?

A: Yes. PG300R_R2_00001 is a parametric equivalent with identical electrical specifications and DO-201AD package. It offers improved reverse leakage performance (1 µA versus 5 µA at 50 V). Both parts are RoHS3 compliant and suitable for direct substitution.

Q: What is the advantage of EGP51A-E3/D over parametric equivalents?

A: EGP51A-E3/D provides higher current capacity (5 A versus 3 A), faster reverse recovery time (50 ns versus 150 ns), and an extended operating temperature range (-65°C to 175°C versus -55°C to 150°C). These characteristics make it suitable for higher-performance applications requiring faster switching or operation in extreme temperature environments, provided the circuit design accommodates the higher current rating.

Q: Is SF61G B0G suitable for high-frequency switching applications?

A: SF61G B0G features the fastest reverse recovery time among all listed substitutes (35 ns), making it suitable for high-frequency switching applications. However, selection should be based on specific circuit requirements for switching frequency, thermal performance, and current capacity. The 6 A rating provides additional current margin compared to the original 3 A specification.

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