Equivalent & Substitute Parts for S2M-M3/5BT

Part Overview

The S2M-M3/5BT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 1000 V DC reverse voltage and 1.5 A average rectified current in a surface mount DO-214AA (SMB) package. This part is supplied in Tape & Reel (TR) packaging and maintains Active product status with ROHS3 compliance. Equivalent and substitute parts are identified to address inventory availability, packaging format requirements, automotive qualification needs, or alternative manufacturer sourcing while maintaining electrical and mechanical compatibility within specified parameters.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	1000	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.15 @ 1.5	V @ A
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	1	µA @ 1000 V
Capacitance @ Vr, F	16	pF @ 4V, 1MHz
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

Substitute parts for the S2M-M3/5BT are grouped into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications: 1000 V DC reverse voltage, 1.5 A average rectified current, 1.15 V forward voltage at 1.5 A, 2 µs reverse recovery time, 1 µA reverse leakage current at 1000 V, and DO-214AA (SMB) surface mount package. These parts differ only in packaging format (Tape & Reel versus Cut Tape) or include automotive-grade qualification (AEC-Q101). Parametric equivalents are direct functional replacements.

Manufacturer Recommended Alternatives provide substitution options when parametric equivalents are unavailable. These parts maintain the 1000 V reverse voltage rating and surface mount technology but may differ in current rating, package type, or recovery characteristics. Selection of alternatives requires verification that the reduced or increased current rating, different package format, or modified recovery time aligns with circuit requirements.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): 1000 V
Current - Average Rectified (Io): 1.5 A (parametric equivalents); alternatives may vary
Package / Case: DO-214AA, SMB (parametric equivalents); alternatives may use SMA or other SMB variants
Mounting Type: Surface Mount
Technology: Standard recovery or Fast recovery
Operating Temperature Range: -55°C to 150°C

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs]	Ir @ Vr [µA]	Package	Packaging Format	Grade	Inventory [Pcs]
S2M-M3/5BT	Vishay General Semiconductor	1000	1.5	1.15 @ 1.5	2	1 @ 1000	DO-214AA, SMB	Tape & Reel (TR)	Standard	827
S2M-E3/52T	Vishay General Semiconductor	1000	1.5	1.15 @ 1.5	2	1 @ 1000	DO-214AA, SMB	Cut Tape (CT)	Standard	31800
S2M-E3/5BT	Vishay General Semiconductor	1000	1.5	1.15 @ 1.5	2	1 @ 1000	DO-214AA, SMB	Tape & Reel (TR)	Standard	26000
S2MHE3_A/H	Vishay General Semiconductor	1000	1.5	1.15 @ 1.5	2	1 @ 1000	DO-214AA, SMB	Tape & Reel (TR)	Automotive (AEC-Q101)	36600
S2MHE3_A/I	Vishay General Semiconductor	1000	1.5	1.15 @ 1.5	2	1 @ 1000	DO-214AA, SMB	Tape & Reel (TR)	Automotive (AEC-Q101)	6807
S1K	YAGEO	800	1.1	1.1 @ 1.1	—	—	DO-214AC	Tape & Reel (TR)	Standard	5824
S1M	EVVO Semi	1000	1	1.1 @ 1	—	5 @ 1000	DO-214AC, SMA	Cut Tape (CT) & Digi-Reel®	Standard	5394
S2K	Diotec Semiconductor	800	2	1.15 @ 2	1.5	5 @ 800	DO-214AA, SMB	Tape & Reel (TR)	Standard	3535
S2M	MDD	1000	2	1.15 @ 2	—	—	SOD-214AC, SMA	—	Standard	325963
S2M-LTP	Micro Commercial Co	1000	2	1.15 @ 2	≤0.5	5 @ 1000	DO-214AA, SMB	Tape & Reel (TR)	Standard (Fast Recovery)	2606
S3KB	Taiwan Semiconductor Corporation	800	3	1.15 @ 3	1.5	10 @ 800	DO-214AA, SMB	Cut Tape (CT) & Digi-Reel®	Standard	75300

Engineering Selection Recommendations

Parametric Equivalent Selection (Direct Replacement):

The parts S2M-E3/52T, S2M-E3/5BT, S2MHE3_A/H, and S2MHE3_A/I are parametric equivalents to the S2M-M3/5BT. All maintain 1000 V reverse voltage, 1.5 A average rectified current, identical forward voltage characteristics, and DO-214AA (SMB) package specifications. Selection among these equivalents is based on packaging format and application requirements:

S2M-E3/52T (Cut Tape format) and S2M-E3/5BT (Tape & Reel format) are standard-grade equivalents suitable for general industrial applications with high inventory availability.
S2MHE3_A/H and S2MHE3_A/I carry AEC-Q101 automotive qualification and are required for automotive applications or systems subject to automotive reliability standards. Both maintain identical electrical performance with Tape & Reel packaging.

Manufacturer Recommended Alternative Selection:

Alternative parts are selected when parametric equivalents are unavailable and circuit design permits parameter variation:

S1M (EVVO Semi) maintains 1000 V reverse voltage but reduces current rating to 1 A and uses SMA package instead of SMB. This alternative is suitable for lower-current applications where the 1.5 A rating is not required.
S2K (Diotec Semiconductor) and S3KB (Taiwan Semiconductor Corporation) reduce reverse voltage to 800 V while increasing current capacity to 2 A and 3 A respectively. These alternatives are suitable for applications where 800 V reverse voltage is sufficient and higher current capacity is beneficial.
S2M (MDD) maintains 1000 V reverse voltage and increases current to 2 A but uses SMA package format. This alternative provides higher current capacity in a different package type.
S2M-LTP (Micro Commercial Co) maintains 1000 V reverse voltage and 2 A current with fast recovery characteristics (≤0.5 µs) in DO-214AA (SMB) package. This alternative is suitable for applications requiring faster switching performance.
S1K (YAGEO) reduces both reverse voltage to 800 V and current to 1.1 A with DO-214AC package. This alternative is suitable for lower-voltage, lower-current applications.

Compliance and Certification:

All listed parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). Automotive applications must specify S2MHE3_A/H or S2MHE3_A/I to ensure AEC-Q101 qualification. Standard industrial applications may use any parametric equivalent or alternative based on circuit requirements.

Frequently Asked Questions (FAQ)

Q: Can S2M-E3/52T replace S2M-M3/5BT directly?

A: Yes. S2M-E3/52T is a parametric equivalent with identical electrical specifications (1000 V, 1.5 A, 1.15 V forward voltage, 2 µs recovery time) and DO-214AA (SMB) package. The only difference is packaging format: S2M-E3/52T is supplied in Cut Tape (CT) format while S2M-M3/5BT is supplied in Tape & Reel (TR) format. Direct electrical replacement is confirmed.

Q: What is the difference between S2M-E3/5BT and S2MHE3_A/H?

A: Both parts are parametric equivalents with identical electrical specifications and Tape & Reel packaging. S2MHE3_A/H carries AEC-Q101 automotive qualification, making it suitable for automotive applications and systems requiring automotive-grade reliability. S2M-E3/5BT is standard-grade. Selection depends on application requirements.

Q: Can S1M be used as a substitute for S2M-M3/5BT?

A: S1M is a manufacturer-recommended alternative, not a parametric equivalent. It maintains 1000 V reverse voltage but reduces current rating to 1 A and uses DO-214AC (SMA) package instead of DO-214AA (SMB). Substitution is valid only if circuit design permits 1 A maximum current and SMA package compatibility.

Q: Why would S2K be considered as an alternative?

A: S2K is a manufacturer-recommended alternative that increases current capacity to 2 A in DO-214AA (SMB) package but reduces reverse voltage to 800 V. This alternative is suitable for applications where 800 V reverse voltage is sufficient and higher current capacity is beneficial. It is not suitable for circuits requiring 1000 V reverse voltage.

Q: What is the advantage of S2M-LTP over S2M-M3/5BT?

A: S2M-LTP maintains 1000 V reverse voltage and DO-214AA (SMB) package but increases current to 2 A and provides fast recovery characteristics (≤0.5 µs versus 2 µs). This alternative is suitable for applications requiring faster switching performance and higher current capacity while maintaining the same reverse voltage rating and package type.

Q: Are all listed parts ROHS3 compliant?

A: Yes. All listed parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). Compliance status is consistent across parametric equivalents and manufacturer-recommended alternatives.

Q: Can S3KB replace S2M-M3/5BT in a 1000 V application?

A: No. S3KB is rated for 800 V maximum reverse voltage, which is insufficient for applications requiring 1000 V reverse voltage. S3KB is suitable only for applications where 800 V reverse voltage is adequate. The higher current capacity (3 A) does not compensate for the reduced voltage rating.

Q: What packaging formats are available for parametric equivalents?

A: Parametric equivalents are available in two packaging formats: Tape & Reel (TR) for S2M-E3/5BT, S2MHE3_A/H, and S2MHE3_A/I; and Cut Tape (CT) for S2M-E3/52T. All maintain DO-214AA (SMB) package type. Selection is based on assembly process requirements and inventory availability.

Q: Is automotive qualification required for all applications?

A: Automotive qualification (AEC-Q101) is required only for automotive applications and systems subject to automotive reliability standards. Standard industrial applications may use non-qualified parts. S2MHE3_A/H and S2MHE3_A/I provide automotive qualification; all other listed parts are standard-grade.

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