FR302G Equivalent & Substitute Parts

Part Overview

The FR302G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, 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 Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring 100 V / 3 A rectification performance.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 3	V @ A
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 100 V
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 FR302G is determined by strict equivalence across the following electrical and mechanical parameters:

Voltage Rating: 100 V DC reverse voltage (Vr) maximum
Current Rating: 3 A average rectified current (Io)
Package Type: DO-201AD axial through-hole configuration
Mounting: Through-hole technology
Compliance: RoHS3 compliance and REACH unaffected status
Temperature Range: Operating junction temperature range

The substitute part 1N5401-E3/73 meets all mandatory electrical and mechanical criteria for direct substitution. Differences in forward voltage (Vf) and recovery speed characteristics do not preclude substitution when application circuit design accommodates these variations within acceptable operating margins.

Parameter Comparison

Parameter	FR302G	1N5401-E3/73	Unit
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	—
Voltage - DC Reverse (Vr) (Max)	100	100	V
Current - Average Rectified (Io)	3	3	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 3	1.2 @ 3	V @ A
Reverse Recovery Time (trr)	150	Not specified	ns
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Standard Recovery > 500ns, > 200mA	—
Current - Reverse Leakage @ Vr	5	5	µA @ 100 V
Capacitance @ Vr, F	30	30	pF @ 4V, 1MHz
Package / Case	DO-201AD, Axial	DO-201AD, Axial	—
Mounting Type	Through Hole	Through Hole	—
Operating Temperature - Junction	-55 to 150	-50 to 150	°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	—
REACH Status	REACH Unaffected	REACH Unaffected	—
Product Status	Active	Active	—

Engineering Selection Recommendations

Both the FR302G and 1N5401-E3/73 are Active product status components with full RoHS3 compliance and REACH unaffected designation, suitable for applications requiring regulatory compliance in industrial and commercial environments.

The FR302G features fast recovery characteristics (150 ns trr) and is available in cut tape packaging. The 1N5401-E3/73 is classified as standard recovery and is supplied in cut tape format with higher inventory availability (16,569 pcs vs. 665 pcs).

Selection between these parts depends on application-specific requirements for recovery speed and forward voltage characteristics. Both components share identical voltage and current ratings, package configuration, and temperature operating range (-50°C to 150°C minimum for 1N5401-E3/73). The FR302G supports a lower minimum junction temperature of -55°C.

Frequently Asked Questions (FAQ)

Q: Can the 1N5401-E3/73 directly replace the FR302G in existing circuit designs?

A: Yes. Both components share identical voltage ratings (100 V), current ratings (3 A), package type (DO-201AD axial), and mounting configuration (through-hole). Electrical performance differences in forward voltage (1.3 V vs. 1.2 V) and recovery speed are within acceptable substitution parameters for general-purpose rectification applications.

Q: What is the difference between fast recovery and standard recovery classifications?

A: The FR302G is classified as fast recovery with a reverse recovery time of 150 ns. The 1N5401-E3/73 is standard recovery with recovery time exceeding 500 ns. Fast recovery diodes exhibit shorter switching transients and lower reverse recovery charge, beneficial in high-frequency switching applications. Standard recovery diodes are suitable for lower-frequency rectification circuits.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the FR302G and 1N5401-E3/73 are RoHS3 compliant and REACH unaffected, meeting regulatory requirements for electronic component use in restricted substance directives.

Q: What is the operating temperature range for each part?

A: The FR302G operates from -55°C to 150°C junction temperature. The 1N5401-E3/73 operates from -50°C to 150°C junction temperature. The FR302G supports a 5°C lower minimum temperature specification.

Q: Is the DO-201AD package the same for both parts?

A: Yes. Both components use the DO-201AD axial through-hole package configuration, ensuring mechanical and electrical compatibility in PCB designs and breadboard applications without modification to component footprints or mounting hardware.

Q: What is the moisture sensitivity level for these diodes?

A: Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly processes.

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