SB2J-M3/5BT Equivalent & Substitute Parts

Part Overview

The SB2J-M3/5BT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 600V DC reverse voltage with a 2A average rectified current rating in a DO-214AA (SMB) package. The device is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within the same application parameters.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	600	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 2 A	V
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	1	µA @ 600 V
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitution logic for the SB2J-M3/5BT is based on the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 600V minimum
Current - Average Rectified (Io): 2A minimum
Package / Case: DO-214AA (SMB) surface mount
Mounting Type: Surface Mount

Secondary Compatibility Parameters:

Voltage - Forward (Vf) (Max) @ If: Within acceptable operating range
Reverse Recovery Time (trr): Standard or faster recovery acceptable
Current - Reverse Leakage @ Vr: Within specified limits
Operating Temperature Range: Minimum -55°C to 150°C junction temperature
RoHS3 Compliance: Required for environmental standards

Substitute parts are grouped into two categories:

Direct Equivalents (2A Rating): Parts with identical 2A current rating and 600V voltage specification, maintaining standard recovery characteristics.

Higher Current Capability (3A Rating): Parts with 3A current rating provide enhanced current handling capacity while maintaining 600V voltage specification and DO-214AA package compatibility. These are suitable for applications where additional current margin is beneficial.

Lower Current Rating (1A Rating): Parts with 1A current rating are listed for reference but represent reduced current capability and are not recommended as direct substitutes for 2A applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs/ns]	Ir @ Vr [µA]	Package	Product Status	Temp Range [°C]
SB2J-M3/5BT	Vishay	600	2	1.15 @ 2A	2 µs	1 @ 600V	DO-214AA	Active	-55 to 150
S2J	Nexperia USA Inc.	600	2	1.15 @ 2A	2 µs	1 @ 600V	DO-214AA	Active	-65 to 150
S2JH	Taiwan Semiconductor Corporation	600	2	1.15 @ 2A	1.5 µs	1 @ 600V	DO-214AA	Active	-55 to 150
STTH2L06U	STMicroelectronics	600	2	1.3 @ 2A	85 ns	2 @ 600V	DO-214AA	Active	-40 to 175
STTH2R06U	STMicroelectronics	600	2	1.7 @ 2A	50 ns	2 @ 600V	DO-214AA	Active	-40 to 175
SURS8260T3G-VF01	onsemi	600	2	1.45 @ 2A	75 ns	5 @ 600V	DO-214AA	Not For New Designs	-65 to 175
STTH3L06U	STMicroelectronics	600	3	1.3 @ 3A	85 ns	3 @ 600V	DO-214AA	Active	-40 to 175
STTH3R06U	STMicroelectronics	600	3	1.7 @ 3A	35 ns	3 @ 600V	DO-214AA	Active	-40 to 175

Engineering Selection Recommendations

Recommended Direct Substitutes (2A Current Rating):

S2J (Nexperia USA Inc.) — Active product status with identical electrical specifications to the SB2J-M3/5BT. Extended lower operating temperature limit (-65°C vs. -55°C) provides additional thermal margin. RoHS3 compliant. Suitable for direct replacement in applications requiring 2A at 600V.

S2JH (Taiwan Semiconductor Corporation) — Active product status with AEC-Q101 automotive qualification. Identical voltage and current ratings with slightly faster reverse recovery time (1.5 µs vs. 2 µs). Operating temperature range matches the original part (-55°C to 150°C). RoHS3 compliant. Appropriate for automotive and industrial applications.

Alternative Substitutes with Enhanced Performance (2A Current Rating):

STTH2L06U (STMicroelectronics) — Active product status with fast recovery characteristics (85 ns). Maintains 2A current rating and 600V voltage specification. Extended maximum junction temperature (175°C vs. 150°C). RoHS3 compliant. Forward voltage slightly elevated at 1.3V. Suitable for applications benefiting from faster switching performance.

STTH2R06U (STMicroelectronics) — Active product status with fast recovery characteristics (50 ns). Maintains 2A current rating and 600V voltage specification. Extended maximum junction temperature (175°C vs. 150°C). RoHS3 compliant. Forward voltage elevated at 1.7V. Appropriate for high-frequency switching applications.

Higher Current Capability Substitutes (3A Current Rating):

STTH3L06U (STMicroelectronics) — Active product status with 3A current rating providing 50% additional current capacity. Fast recovery (85 ns). 600V voltage specification maintained. Extended maximum junction temperature (175°C). RoHS3 compliant. Suitable for applications requiring enhanced current margin within the same package.

STTH3R06U (STMicroelectronics) — Active product status with 3A current rating providing 50% additional current capacity. Fast recovery (35 ns). 600V voltage specification maintained. Extended maximum junction temperature (175°C). RoHS3 compliant. Appropriate for high-frequency applications with increased current requirements.

Not Recommended:

SURS8260T3G-VF01 (onsemi) — Product status is "Not For New Designs." Although electrically compatible with 2A at 600V and AEC-Q101 qualified, this part should not be selected for new applications due to its obsolescence trajectory.

Frequently Asked Questions (FAQ)

Q: Can the S2J replace the SB2J-M3/5BT in my application?

A: Yes. The S2J from Nexperia USA Inc. is a direct electrical equivalent with identical 600V voltage rating, 2A current rating, and DO-214AA package. Both parts meet RoHS3 compliance. The S2J has an extended lower operating temperature limit (-65°C vs. -55°C), which provides additional thermal margin in cold environments.

Q: What is the difference between STTH2L06U and STTH2R06U?

A: Both parts maintain the 2A current rating and 600V voltage specification in DO-214AA package. The primary differences are: STTH2L06U has a forward voltage of 1.3V @ 2A with 85 ns reverse recovery time, while STTH2R06U has a forward voltage of 1.7V @ 2A with 50 ns reverse recovery time. STTH2R06U is faster but generates more forward voltage drop. Selection depends on whether switching speed or power dissipation is the priority.

Q: Can I use a 3A-rated diode (STTH3L06U or STTH3R06U) instead of the 2A-rated SB2J-M3/5BT?

A: Yes. The 3A-rated parts are electrically compatible with the same 600V voltage specification and DO-214AA package. The higher current rating provides additional design margin and is suitable for applications where current capacity enhancement is beneficial. No circuit modifications are required.

Q: Why is the SURS8260T3G-VF01 listed if it is not recommended?

A: The SURS8260T3G-VF01 is included for reference as it meets the electrical substitution criteria (600V, 2A, DO-214AA package) and is AEC-Q101 qualified for automotive applications. However, its "Not For New Designs" status indicates the manufacturer is discontinuing this product line. New designs should select from Active status alternatives.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed in this reference are RoHS3 compliant and have unlimited moisture sensitivity level (MSL 1), matching the environmental compliance profile of the SB2J-M3/5BT.

Q: What is the impact of different reverse recovery times (trr)?

A: Reverse recovery time affects switching speed and electromagnetic interference characteristics. The SB2J-M3/5BT has a standard recovery time of 2 µs. STMicroelectronics parts (STTH series) offer fast recovery with trr values between 35 ns and 85 ns, suitable for higher-frequency applications. The S2JH offers intermediate recovery at 1.5 µs. Selection depends on the switching frequency requirements of the application.

Q: Can I substitute the SB2J-M3/5BT with a lower-current-rated part like STTH1L06U or STTH1R06U?

A: No. The STTH1 series parts are rated for 1A maximum current, which is below the 2A requirement of the SB2J-M3/5BT. Using an undersized component would exceed its current rating and compromise reliability. Only parts with 2A or higher current ratings are suitable substitutes.

Q: What is the operating temperature range consideration for substitution?

A: The SB2J-M3/5BT operates from -55°C to 150°C junction temperature. The S2J extends the lower limit to -65°C, providing additional cold-temperature margin. STMicroelectronics parts extend the upper limit to 175°C, providing additional thermal headroom. Selection depends on the application's thermal environment. All listed substitutes meet or exceed the original temperature range.

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