SF62G-AP Equivalent & Substitute Parts

Part Overview

The SF62G-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 a DO-201AD axial through-hole package. This component is classified as "Not For New Designs," indicating it has reached end-of-life status. Finding equivalent and substitute parts is necessary for maintenance, repair, and legacy system support where the original part is no longer available or procurement is limited.

Key Parameters

Parameter	Value
Voltage - DC Reverse (Vr) (Max)	100 V
Current - Average Rectified (Io)	6 A
Voltage - Forward (Vf) (Max) @ If	975 mV @ 6 A
Reverse Recovery Time (trr)	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 100 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)
Package / Case	DO-201AD, Axial
Mounting Type	Through Hole
Operating Temperature - Junction	-55°C ~ 150°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SF62G-AP is determined by the following critical parameters:

Mandatory Matching Parameters:

Voltage - DC Reverse (Vr) (Max): 100 V
Package / Case: DO-201AD, Axial
Mounting Type: Through Hole
Technology: Standard

Current Rating Consideration: The SF62G-AP is rated for 6 A average rectified current. Substitute parts must meet or exceed this current rating to ensure adequate performance in the original application circuit.

Performance Parameters:

Reverse Recovery Time (trr): 35 ns or faster
Voltage - Forward (Vf) (Max) @ If: 975 mV or lower at rated current
Current - Reverse Leakage @ Vr: 5 µA @ 100 V or lower

Compliance Requirements:

RoHS3 Compliant
Operating Temperature Range: -55°C ~ 150°C minimum

Substitute parts are grouped into two categories: parametric equivalents (matching all electrical specifications) and functional substitutes (meeting minimum requirements with reduced current ratings).

Parameter Comparison

Parameter	SF62G-AP (Main)	UG4B-E3/54 (Substitute)	SF62G A0G (Equivalent)	SF62GHA0G (Equivalent)
Manufacturer	Micro Commercial Co	Vishay General Semiconductor - Diodes Division	Taiwan Semiconductor Corporation	Taiwan Semiconductor Corporation
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	6 A	4 A	6 A	6 A
Voltage - Forward (Vf) (Max) @ If	975 mV @ 6 A	950 mV @ 4 A	975 mV @ 6 A	975 mV @ 6 A
Reverse Recovery Time (trr)	35 ns	30 ns	35 ns	35 ns
Current - Reverse Leakage @ Vr	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 V	5 µA @ 100 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°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C	-55°C ~ 150°C
Product Status	Not For New Designs	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Grade	Standard	Standard	Standard	Automotive (AEC-Q101)

Engineering Selection Recommendations

Parametric Equivalents (Preferred for Direct Replacement):

SF62G A0G and SF62GHA0G, both manufactured by Taiwan Semiconductor Corporation, are parametric equivalents to the SF62G-AP. These parts match all electrical specifications including 100 V reverse voltage, 6 A average rectified current, 975 mV forward voltage drop, and 35 ns reverse recovery time. Both are Active products with ROHS3 compliance. SF62GHA0G includes automotive-grade qualification (AEC-Q101), making it suitable for applications requiring automotive-level reliability and traceability.

Functional Substitute (Current-Limited Application):

UG4B-E3/54, manufactured by Vishay General Semiconductor - Diodes Division, is a functional substitute with identical voltage ratings and package specifications. However, this part is rated for 4 A average rectified current compared to the 6 A rating of the SF62G-AP. UG4B-E3/54 is suitable only for applications where the actual circuit current demand does not exceed 4 A. This part exhibits superior reverse recovery time (30 ns versus 35 ns) and slightly lower forward voltage drop (950 mV @ 4 A). UG4B-E3/54 is Active and ROHS3 compliant.

Selection Criteria:

For direct replacement in circuits requiring full 6 A capability, select SF62G A0G or SF62GHA0G. For automotive or high-reliability applications, SF62GHA0G is the preferred choice due to AEC-Q101 qualification. For applications with current demand below 4 A, UG4B-E3/54 provides an alternative with improved reverse recovery characteristics. All substitute parts maintain identical package geometry (DO-201AD axial through-hole) and operating temperature range (-55°C ~ 150°C).

Frequently Asked Questions (FAQ)

Q: Can UG4B-E3/54 be used as a direct replacement for SF62G-AP?

A: UG4B-E3/54 is a functional substitute only for applications where circuit current does not exceed 4 A. The SF62G-AP is rated for 6 A average rectified current, while UG4B-E3/54 is rated for 4 A. Both parts share identical voltage ratings (100 V), package type (DO-201AD axial), and mounting configuration (through-hole). If the application circuit requires the full 6 A capability, use SF62G A0G or SF62GHA0G instead.

Q: What is the difference between SF62G A0G and SF62GHA0G?

A: SF62G A0G and SF62GHA0G are electrically identical, both rated for 100 V, 6 A, with 975 mV forward voltage drop and 35 ns reverse recovery time. The primary difference is that SF62GHA0G carries automotive-grade qualification (AEC-Q101) and is designated for automotive applications. Both are Active products manufactured by Taiwan Semiconductor Corporation and are ROHS3 compliant.

Q: Are all substitute parts available in the same package as the original SF62G-AP?

A: Yes. All substitute parts listed (UG4B-E3/54, SF62G A0G, and SF62GHA0G) use the DO-201AD axial through-hole package. Physical dimensions and PCB mounting footprints are identical, allowing direct mechanical substitution without circuit board redesign.

Q: Why is the SF62G-AP marked as "Not For New Designs"?

A: The "Not For New Designs" status indicates the SF62G-AP has reached end-of-life and is no longer recommended for new product development. This classification is typical for legacy components. For new designs, use SF62G A0G, SF62GHA0G, or UG4B-E3/54 depending on current requirements and application grade.

Q: What compliance certifications apply to these substitute parts?

A: All listed substitute parts are ROHS3 compliant and REACH unaffected. SF62GHA0G additionally carries AEC-Q101 automotive qualification. All parts operate within the -55°C ~ 150°C junction temperature range and have Moisture Sensitivity Level (MSL) of 1 (Unlimited).

Q: Can these diodes be used interchangeably in high-frequency switching applications?

A: All parts listed are classified as fast recovery diodes with reverse recovery times of 30 ns (UG4B-E3/54) or 35 ns (SF62G-AP, SF62G A0G, SF62GHA0G). These specifications support high-frequency switching applications. However, circuit performance depends on the specific switching frequency and application requirements. Verify that the selected part's reverse recovery time and forward voltage characteristics are compatible with the circuit design.

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