FR304GP-TP General Purpose Rectifier Diode Equivalent & Substitute Parts

Part Overview

The FR304GP-TP is a general purpose rectifier diode manufactured by Micro Commercial Co, rated for 400 V DC reverse voltage and 3 A average rectified current in a DO-201AD axial through-hole package. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or application-specific performance requirements within the allowed parameter specifications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 3 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 400 V
Capacitance @ Vr, F	50	pF @ 4V, 1MHz
Package / Case	DO-201AD, Axial	—
Mounting Type	Through Hole	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the FR304GP-TP are identified based on strict equivalence of the following critical parameters:

Voltage Rating: 400 V DC reverse voltage (Vr) maximum
Current Rating: 3 A average rectified current (Io)
Forward Voltage: 1.3 V maximum at 3 A forward current
Speed Classification: Fast Recovery ≤ 500ns, > 200mA
Package: DO-201AD axial through-hole configuration
Operating Temperature Range: -55°C to 150°C junction temperature
Compliance: ROHS3 compliant, REACH unaffected

All substitute parts listed maintain these core electrical and mechanical specifications. Variations in reverse recovery time (trr), reverse leakage current, and junction capacitance are within acceptable ranges for general purpose rectifier applications and do not affect functional interchangeability within the specified parameter envelope.

Parameter Comparison

Parameter	FR304GP-TP (Micro Commercial Co)	HER305G A0G (Taiwan Semiconductor)	SF36G (Taiwan Semiconductor)
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V
Current - Average Rectified (Io)	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
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Reverse Recovery Time (trr)	150 ns	50 ns	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 400 V	10 µA @ 400 V	5 µA @ 400 V
Capacitance @ Vr, F	50 pF @ 4V, 1MHz	60 pF @ 4V, 1MHz	60 pF @ 4V, 1MHz
Package / Case	DO-201AD, Axial	DO-201AD, Axial	DO-201AD, Axial
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

HER305G A0G (Taiwan Semiconductor Corporation) is a parametric equivalent substitute with identical voltage, current, and forward voltage specifications. This part exhibits improved reverse recovery time (50 ns versus 150 ns), resulting in faster switching characteristics. Reverse leakage current is 10 µA at 400 V, compared to 5 µA for the FR304GP-TP. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Inventory availability is 1779 pieces in cut tape packaging.

SF36G (Taiwan Semiconductor Corporation) is a parametric equivalent substitute with identical voltage, current, and forward voltage specifications. This part demonstrates the fastest reverse recovery time (35 ns) among the listed substitutes, providing superior switching performance. Reverse leakage current matches the FR304GP-TP at 5 µA at 400 V. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Inventory availability is 1534 pieces in cut tape packaging.

All substitute parts are Active product status and suitable for direct component selection based on electrical equivalence and mechanical compatibility within the DO-201AD through-hole package format.

Frequently Asked Questions (FAQ)

Q: Can HER305G A0G and SF36G be used interchangeably with FR304GP-TP in existing circuit designs?

A: Yes. All three parts meet the core electrical specifications: 400 V reverse voltage rating, 3 A average rectified current, and 1.3 V forward voltage at 3 A. The DO-201AD axial through-hole package is identical across all parts, enabling direct mechanical substitution. Operating temperature ranges and compliance certifications are equivalent.

Q: What is the significance of the different reverse recovery times (trr) listed for each part?

A: Reverse recovery time is the interval required for a diode to transition from forward conduction to reverse blocking state. The FR304GP-TP specifies 150 ns, HER305G A0G specifies 50 ns, and SF36G specifies 35 ns. All values comply with the Fast Recovery classification (≤ 500ns, > 200mA). Faster recovery times reduce switching losses in high-frequency applications but do not affect compatibility in standard rectification circuits.

Q: Are there packaging differences between the main part and substitute parts?

A: The FR304GP-TP is supplied in Tape & Reel (TR) packaging, while HER305G A0G and SF36G are supplied in Cut Tape (CT) packaging. Both packaging formats contain identical DO-201AD axial through-hole components. Packaging format selection depends on assembly process requirements and does not affect electrical or mechanical performance.

Q: Do all parts meet the same regulatory and compliance standards?

A: Yes. FR304GP-TP, HER305G A0G, and SF36G are all ROHS3 compliant, REACH unaffected, and classified as Moisture Sensitivity Level 1 (unlimited). All parts carry EAR99 ECCN classification and 8541.10.0080 HTSUS code.

Q: What is the difference in reverse leakage current between the parts?

A: FR304GP-TP and SF36G specify 5 µA reverse leakage current at 400 V, while HER305G A0G specifies 10 µA at 400 V. Both values are within acceptable ranges for general purpose rectifier applications and do not affect functional interchangeability in standard circuit designs.

Q: Can these parts be used in applications requiring specific reverse recovery time performance?

A: Selection should be based on application requirements. If faster switching is required, SF36G (35 ns trr) or HER305G A0G (50 ns trr) provide improved performance compared to FR304GP-TP (150 ns trr). All parts remain within the Fast Recovery classification and are suitable for general purpose rectification.

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