HER602-AP Equivalent & Substitute Parts

Part Overview

The HER602-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 100 V DC reverse voltage and 6 A average rectified current in an R-6 axial through-hole package. This part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement continuity. Active alternatives with identical or compatible electrical and mechanical specifications are available from the same manufacturer and qualified alternative suppliers.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	6	A
Voltage - Forward (Vf) (Max) @ If	1.1	V @ 6 A
Reverse Recovery Time (trr)	50	ns
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Capacitance @ Vr, F	100	pF @ 4V, 1MHz
Package / Case	R-6, Axial	Through Hole
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the HER602-AP is determined by equivalence in the following critical parameters: maximum reverse voltage (100 V), average rectified current (6 A), forward voltage drop (1.1 V @ 6 A), reverse recovery time (50 ns), reverse leakage current (10 µA @ 100 V), and package configuration (R-6 axial through-hole). Parts meeting all these specifications are classified as direct equivalents. Parts with identical electrical ratings but different recovery speed characteristics are classified as similar substitutes, provided all other parameters remain within acceptable tolerances.

Parameter Comparison

Parameter	HER602-AP (Main)	HER602GP-AP (Direct)	6A01B-G (Similar)
Manufacturer	Micro Commercial Co	Micro Commercial Co	Comchip Technology
Product Status	Obsolete	Active	Active
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V
Current - Average Rectified (Io)	6 A	6 A	6 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 6 A	1.1 V @ 6 A	1 V @ 6 A
Speed	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Standard Recovery > 500ns, > 200mA
Reverse Recovery Time (trr)	50 ns	50 ns	Not specified
Current - Reverse Leakage @ Vr	10 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V
Capacitance @ Vr, F	100 pF @ 4V, 1MHz	100 pF @ 4V, 1MHz	100 pF @ 4V, 1MHz
Package / Case	R-6, Axial	R-6, Axial	R-6, Axial
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

HER602GP-AP is the primary direct equivalent for the obsolete HER602-AP. Both parts are manufactured by Micro Commercial Co and share identical electrical specifications, including 100 V reverse voltage, 6 A current rating, 1.1 V forward voltage drop, 50 ns reverse recovery time, and -55°C to 150°C operating temperature range. HER602GP-AP carries active product status and is ROHS3 compliant, making it the preferred replacement for new designs and procurement.

6A01B-G manufactured by Comchip Technology is a qualified alternative that meets the core voltage and current requirements (100 V, 6 A) with identical reverse leakage current and capacitance specifications. This part exhibits a lower forward voltage drop (1 V @ 6 A) and operates within a narrower temperature range (-55°C to 125°C). The 6A01B-G employs standard recovery speed characteristics (> 500ns) rather than fast recovery, which may affect switching performance in high-frequency applications. This part is suitable for applications where recovery speed is not a critical design parameter and the reduced temperature range is acceptable.

Frequently Asked Questions (FAQ)

Q: Can HER602GP-AP be used as a direct replacement for HER602-AP?

A: Yes. HER602GP-AP is a direct equivalent with identical electrical specifications: 100 V reverse voltage, 6 A current rating, 1.1 V forward voltage drop at 6 A, 50 ns reverse recovery time, and -55°C to 150°C operating temperature. Both use R-6 axial through-hole packaging. HER602GP-AP is the active production equivalent.

Q: What is the difference between HER602-AP and 6A01B-G?

A: Both parts share the same voltage (100 V), current (6 A), and package specifications. Key differences are: 6A01B-G has a lower forward voltage drop (1 V vs. 1.1 V @ 6 A), operates at standard recovery speed (> 500ns) rather than fast recovery (≤ 500ns), and has a reduced maximum junction temperature (125°C vs. 150°C). The 6A01B-G is suitable for applications where fast recovery is not required.

Q: Are all three parts in the same package?

A: Yes. HER602-AP, HER602GP-AP, and 6A01B-G all use R-6 axial through-hole packaging, ensuring mechanical compatibility in existing PCB layouts.

Q: Which part should be selected for new designs?

A: HER602GP-AP is the recommended selection for new designs. It is the active production equivalent from the original manufacturer with identical specifications to the obsolete HER602-AP and carries full compliance certifications.

Q: Can 6A01B-G be used in applications requiring fast recovery performance?

A: No. The 6A01B-G operates at standard recovery speed (> 500ns), which differs from the fast recovery specification (≤ 500ns) of HER602-AP and HER602GP-AP. Applications requiring fast switching or high-frequency operation should use HER602GP-AP.

Q: What is the temperature operating range difference between the parts?

A: HER602-AP and HER602GP-AP both operate from -55°C to 150°C. The 6A01B-G operates from -55°C to 125°C, a 25°C reduction in maximum junction temperature. Applications requiring operation above 125°C must use HER602GP-AP.

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