SFS1008G Equivalent & Substitute Parts

Part Overview

The SFS1008G is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 600 V DC reverse voltage and 10 A average rectified current. The device is packaged in a Surface Mount TO-263AB (D2PAK) configuration and is classified as Active product status. This diode is suitable for applications requiring fast recovery characteristics with a reverse recovery time of 35 nanoseconds. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements necessitate alternative electrical or mechanical characteristics within the same functional category.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	10	A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 5 A	V
Reverse Recovery Time (trr)	35	ns
Current - Reverse Leakage @ Vr	1	µA @ 600 V
Package / Case	TO-263-3, D2PAK (2 Leads + Tab)	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	—

Substitute Part Grouping Explanation

Substitution eligibility for the SFS1008G is determined by the following critical parameters: voltage rating (600 V DC reverse), package type (TO-263AB D2PAK Surface Mount), mounting technology (Surface Mount), and fast recovery speed classification (≤ 500 ns). The substitute parts identified are grouped based on compatibility with these core parameters.

Group 1 - Direct Functional Equivalents: Parts that maintain the same voltage rating, package configuration, and fast recovery speed characteristics, with variations in current rating or forward voltage specifications.

Group 2 - Higher Current Rating Variants: Parts that exceed the 10 A current specification while maintaining the 600 V voltage rating and D2PAK package, suitable for applications with increased current demands.

Group 3 - Diode Array Configurations: Parts that provide multiple diode elements in a single D2PAK package, applicable to designs requiring multiple diode functions in a compact form factor.

The following parameters determine substitution validity: Voltage - DC Reverse (Vr) (Max) = 600 V; Package / Case = TO-263-3, D2PAK; Mounting Type = Surface Mount; Speed = Fast Recovery ≤ 500 ns.

Parameter Comparison

Parameter	SFS1008G	SDURB1060	SDURB1060CT	STTH30L06GY-TR
Manufacturer	Taiwan Semiconductor Corporation	SMC Diode Solutions	SMC Diode Solutions	STMicroelectronics
Voltage - DC Reverse (Vr) (Max)	600 V	600 V	600 V	600 V
Current - Average Rectified (Io)	10 A	—	— (per Diode)	30 A
Voltage - Forward (Vf) (Max) @ If	1.7 V @ 5 A	2.2 V @ 10 A	1.55 V @ 5 A	1.55 V @ 30 A
Reverse Recovery Time (trr)	35 ns	32 ns	50 ns	90 ns
Current - Reverse Leakage @ Vr	1 µA @ 600 V	10 µA @ 600 V	5 µA @ 600 V	25 µA @ 600 V
Package / Case	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK	TO-263-3, D2PAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 150 °C	-55 to 150 °C	-55 to 150 °C	-40 to 175 °C
Technology	Standard	Standard	Standard	Standard
Speed	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns	Fast Recovery ≤ 500ns
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active

Engineering Selection Recommendations

SDURB1060 (SMC Diode Solutions): This part maintains the 600 V voltage rating and D2PAK package configuration. The reverse recovery time of 32 nanoseconds is faster than the SFS1008G. Forward voltage is elevated at 2.2 V @ 10 A compared to 1.7 V @ 5 A on the primary part. Reverse leakage current is higher at 10 µA @ 600 V. This part is suitable for applications where the primary part is unavailable and forward voltage elevation is acceptable. Product status is Active with ROHS3 compliance.

SDURB1060CT (SMC Diode Solutions): This is a diode array configuration with 1 Pair Common Cathode in a D2PAK package. The 600 V voltage rating and package type match the primary part. Forward voltage of 1.55 V @ 5 A is lower than the SFS1008G. Reverse recovery time is 50 nanoseconds, which is longer than the primary part. This configuration is applicable only to designs requiring multiple diode elements in a single package. Product status is Active with ROHS3 compliance.

STTH30L06GY-TR (STMicroelectronics): This part provides a 30 A current rating, significantly exceeding the 10 A specification of the SFS1008G, while maintaining the 600 V voltage rating and D2PAK package. Forward voltage is 1.55 V @ 30 A. Reverse recovery time is 90 nanoseconds, which is longer than the primary part. Operating temperature range extends to 175 °C maximum junction temperature. This part includes AEC-Q101 automotive qualification. Selection of this part is appropriate for applications requiring higher current capacity within the same voltage and package constraints. Product status is Active with ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can SDURB1060 be used as a direct replacement for SFS1008G?

A: SDURB1060 shares the same 600 V voltage rating, D2PAK package, and fast recovery speed classification. However, the forward voltage is higher at 2.2 V @ 10 A versus 1.7 V @ 5 A on the SFS1008G, and reverse leakage current is elevated at 10 µA @ 600 V. Substitution is valid when forward voltage elevation and increased leakage current are acceptable within circuit design margins.

Q: What is the difference between SDURB1060 and SDURB1060CT?

A: SDURB1060 is a single diode in a D2PAK package. SDURB1060CT is a diode array with 1 Pair Common Cathode configuration in the same D2PAK package. These are functionally different devices. SDURB1060CT is applicable only to designs requiring multiple diode elements with a common cathode connection.

Q: Is STTH30L06GY-TR suitable for applications designed for 10 A operation?

A: STTH30L06GY-TR is rated for 30 A average rectified current, which exceeds the 10 A requirement of the SFS1008G. The higher current rating does not prevent operation at lower currents. However, the reverse recovery time is 90 nanoseconds, which is longer than the 35 nanoseconds of the primary part. This characteristic may affect switching performance in high-frequency applications. Selection depends on circuit requirements for reverse recovery speed.

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts are packaged in TO-263-3, D2PAK (2 Leads + Tab) Surface Mount configuration, matching the primary part. Tape & Reel and Cut Tape packaging options vary by supplier. Verify packaging format availability with the component supplier for production requirements.

Q: What compliance certifications apply to these parts?

A: All parts listed are ROHS3 compliant and have Moisture Sensitivity Level 1 (Unlimited). STTH30L06GY-TR includes AEC-Q101 automotive qualification. SFS1008G and STTH30L06GY-TR have REACH Unaffected status, while SDURB1060 and SDURB1060CT have REACH Affected status. Verify compliance requirements for specific applications before selection.

Q: How do reverse recovery times compare across the substitute options?

A: SFS1008G has a reverse recovery time of 35 nanoseconds. SDURB1060 is faster at 32 nanoseconds. SDURB1060CT is 50 nanoseconds, and STTH30L06GY-TR is 90 nanoseconds. Faster recovery times reduce switching losses in high-frequency applications. Selection should account for circuit operating frequency and switching performance requirements.

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