SF2L6G A0G Equivalent & Substitute Parts

Part Overview

The SF2L6G A0G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 400 V DC reverse voltage and 2 A average rectified current in a DO-204AC (DO-15) through-hole axial package. This component is classified as Active product status and complies with RoHS3 and REACH regulations. Equivalent and substitute parts are identified based on matching or compatible electrical and mechanical parameters to support circuit design flexibility, inventory management, and supply chain continuity.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	400	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 2 A	V
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	1	µA @ 400 V
Mounting Type	Through Hole	-
Package / Case	DO-204AC, DO-15, Axial	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the SF2L6G A0G are classified into two categories based on electrical parameter compatibility:

Parametric Equivalent (Direct Substitution): Parts that match the primary electrical specifications: 400 V DC reverse voltage, 2 A average rectified current, fast recovery speed (≤ 500ns), and DO-204AC through-hole package. These parts maintain functional equivalence within the same circuit application.

Similar Parts (Current-Reduced or Speed-Variant Substitutes): Parts that share the 400 V reverse voltage rating and DO-204AC package but differ in average rectified current (1 A or 1.5 A) or recovery time characteristics. These parts are suitable for applications with lower current requirements or where recovery time specifications permit variation.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): 400 V (mandatory match)
Package / Case: DO-204AC, DO-15, Axial (mandatory match for through-hole mounting)
Current - Average Rectified (Io): 2 A (parametric equivalent), 1.5 A or 1 A (similar)
Speed: Fast Recovery ≤ 500ns (parametric equivalent), Standard Recovery >500ns (similar)
Operating Temperature Range: -55°C to 150°C (main part specification)
RoHS3 Compliance: Required for all substitutes

Parameter Comparison

Parameter	SF2L6G A0G	SF26G A0G	1N5060GP-E3/54	1N5617GP-E3/54	EGP20G-E3/54	GP15G-E3/54	RGP15G-E3/54
Manufacturer	Taiwan Semiconductor	Taiwan Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor	Vishay General Semiconductor
Voltage - DC Reverse (Vr) (Max)	400 V	400 V	400 V	400 V	400 V	400 V	400 V
Current - Average Rectified (Io)	2 A	2 A	1 A	1 A	2 A	1.5 A	1.5 A
Voltage - Forward (Vf) (Max) @ If	1.3 V @ 2 A	1.3 V @ 2 A	1.2 V @ 1 A	1.2 V @ 1 A	1.25 V @ 2 A	1.1 V @ 1.5 A	1.3 V @ 1.5 A
Speed	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Standard Recovery >500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Standard Recovery >500ns	Fast Recovery ≤ 500ns
Reverse Recovery Time (trr)	35 ns	35 ns	2 µs	150 ns	50 ns	3.5 µs	150 ns
Current - Reverse Leakage @ Vr	1 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V	500 nA @ 400 V	5 µA @ 400 V	5 µA @ 400 V	5 µA @ 400 V
Package / Case	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial	DO-204AC, DO-15, Axial
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-65 to 175°C	-65 to 175°C	-65 to 150°C	-65 to 175°C	-65 to 175°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

Parametric Equivalent Substitution:

SF26G A0G is a parametric equivalent to SF2L6G A0G. Both parts are manufactured by Taiwan Semiconductor Corporation and share identical electrical specifications: 400 V reverse voltage, 2 A average rectified current, 1.3 V forward voltage at 2 A, fast recovery speed (≤ 500ns), and 35 ns reverse recovery time. Both are Active product status and ROHS3 compliant. The primary difference is packaging format (Cut Tape vs. standard packaging) and reverse leakage current (5 µA vs. 1 µA). SF26G A0G is suitable for direct substitution in applications where the higher reverse leakage specification is acceptable.

Similar Part Substitution (Current-Reduced Applications):

EGP20G-E3/54 (Vishay) is a direct current-rated equivalent at 2 A with 400 V reverse voltage and fast recovery characteristics (50 ns trr). This part is suitable for applications matching the SF2L6G A0G current and voltage requirements. Operating temperature range extends to 175°C, providing broader thermal capability.

1N5617GP-E3/54 (Vishay) provides fast recovery performance (150 ns trr) at 1 A current rating with 400 V reverse voltage. This part is suitable for lower-current applications where the SF2L6G A0G 2 A rating exceeds circuit requirements.

RGP15G-E3/54 (Vishay) offers fast recovery (150 ns trr) at 1.5 A current rating with 400 V reverse voltage. This part bridges the current range between 1 A and 2 A specifications.

Lower-Current Alternatives (Standard Recovery):

GP15G-E3/54 (Vishay) and 1N5060GP-E3/54 (Vishay) provide standard recovery characteristics (>500ns) at reduced current ratings (1.5 A and 1 A respectively). These parts are suitable for applications where recovery speed is not a critical parameter and current requirements are lower than 2 A.

All substitute parts maintain DO-204AC through-hole axial package compatibility, ROHS3 compliance, and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can SF26G A0G replace SF2L6G A0G in all applications?

A: SF26G A0G is a parametric equivalent with identical voltage, current, and speed specifications. The reverse leakage current is higher (5 µA vs. 1 µA at 400 V), which may affect applications with stringent leakage requirements. Both parts are ROHS3 compliant and Active product status. Verify leakage specifications against circuit design requirements before substitution.

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

A: Fast recovery diodes have reverse recovery time (trr) ≤ 500ns, while standard recovery diodes have trr >500ns. SF2L6G A0G specifies 35 ns fast recovery. Fast recovery diodes are suitable for high-frequency switching applications. Standard recovery alternatives (GP15G-E3/54, 1N5060GP-E3/54) have longer recovery times (3.5 µs and 2 µs respectively) and are suitable for lower-frequency applications.

Q: Can I use a 1 A rated diode (1N5060GP-E3/54 or 1N5617GP-E3/54) instead of the 2 A rated SF2L6G A0G?

A: Substitution with lower current-rated parts is only valid if circuit average rectified current does not exceed the substitute part rating. 1N5060GP-E3/54 and 1N5617GP-E3/54 are rated for 1 A maximum. Both maintain 400 V reverse voltage and DO-204AC package compatibility. Verify circuit current requirements before selection.

Q: Are all substitute parts in the same DO-204AC package?

A: Yes. All listed substitute parts use DO-204AC (DO-15) axial through-hole package. Physical dimensions and PCB mounting are identical. Packaging format differences (Cut Tape vs. standard) do not affect electrical performance or mechanical fit.

Q: What is the operating temperature range difference between SF2L6G A0G and Vishay substitutes?

A: SF2L6G A0G operates from -55°C to 150°C junction temperature. Vishay parts (1N5060GP-E3/54, 1N5617GP-E3/54, GP15G-E3/54, RGP15G-E3/54) operate from -65°C to 175°C, providing extended lower and upper temperature capability. EGP20G-E3/54 operates from -65°C to 150°C. Select based on application thermal requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of SF2L6G A0G. No additional regulatory verification is required for substitution.

Q: What is the significance of reverse leakage current differences?

A: SF2L6G A0G specifies 1 µA reverse leakage at 400 V, while most Vishay substitutes specify 5 µA. 1N5617GP-E3/54 specifies 500 nA, providing superior leakage performance. Higher leakage current increases power dissipation in reverse bias conditions. Select based on circuit leakage budget and thermal design requirements.

Q: Can EGP20G-E3/54 be used as a direct replacement for SF2L6G A0G?

A: EGP20G-E3/54 is suitable for direct replacement in applications requiring 2 A at 400 V with fast recovery characteristics. Forward voltage is 1.25 V at 2 A (vs. 1.3 V for SF2L6G A0G), and reverse recovery time is 50 ns (vs. 35 ns). Operating temperature range extends to 175°C. Verify forward voltage drop and recovery time specifications against circuit design before substitution.

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