SB2D-M3/5BT Equivalent & Substitute Parts

Part Overview

The SB2D-M3/5BT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 200 V DC reverse voltage with a 2 A average rectified current rating in a DO-214AA (SMB) package. The device is classified as Active product status with standard recovery characteristics and is RoHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design optimization across multiple manufacturers while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 2 A	V
Reverse Recovery Time (trr)	2	µs
Current - Reverse Leakage @ Vr	1	µA @ 200 V
Package / Case	DO-214AA, SMB	-
Mounting Type	Surface Mount	-
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitute parts for the SB2D-M3/5BT are classified into two categories based on electrical parameter alignment:

Category 1: Direct Parametric Equivalents (2 A Current Rating) Parts that match the primary electrical specifications of 200 V reverse voltage and 2 A average rectified current. These parts maintain identical current handling capacity and voltage rating, differing primarily in recovery speed characteristics and forward voltage performance.

Category 2: Higher Current Rated Alternatives (3 A and 4 A Current Ratings) Parts that exceed the 2 A current specification while maintaining 200 V reverse voltage rating. These components provide design margin and are suitable for applications where increased current capacity is beneficial or required.

Key Parameters Determining Substitution:

Voltage - DC Reverse (Vr) (Max): 200 V (mandatory match)
Package / Case: DO-214AA, SMB (mandatory match for mechanical compatibility)
Mounting Type: Surface Mount (mandatory match)
Current - Average Rectified (Io): 2 A minimum (equal or higher acceptable)
RoHS Status: ROHS3 Compliant (mandatory match)

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns/µs]	Package	Product Status	Inventory [Pcs]
SB2D-M3/5BT	Vishay General Semiconductor	200	2	1.15 @ 2 A	2 µs	DO-214AA, SMB	Active	1116
ER2D-LTP	Micro Commercial Co	200	2	0.95 @ 2 A	35 ns	DO-214AA, SMB	Active	198400
ES2D	Good-Ark Semiconductor	200	2	0.95 @ 2 A	35 ns	DO-214AA, SMB	Active	89400
ES2D-13-F	Diodes Incorporated	200	2	0.92 @ 2 A	25 ns	DO-214AA, SMB	Active	130906
S2DH	Taiwan Semiconductor Corporation	200	2	1.15 @ 2 A	1.5 µs	DO-214AA, SMB	Active	6883
MUR320SB	Taiwan Semiconductor Corporation	200	3	0.90 @ 3 A	25 ns	DO-214AA, SMB	Active	763
HS3DB R5G	Taiwan Semiconductor Corporation	200	3	1.0 @ 3 A	50 ns	DO-214AA, SMB	Discontinued at DiGi Electronics	3893
STTH1R02U	STMicroelectronics	200	1.5	1.0 @ 1.5 A	30 ns	DO-214AA, SMB	Active	16786
STTH4R02U	STMicroelectronics	200	4	1.05 @ 4 A	30 ns	DO-214AA, SMB	Active	20100

Engineering Selection Recommendations

Primary Substitutes (Direct 2 A Equivalents):

ER2D-LTP, ES2D, ES2D-13-F, and S2DH are direct electrical equivalents with 200 V reverse voltage and 2 A current rating in DO-214AA SMB packaging. All are RoHS3 compliant and Active product status. ER2D-LTP offers superior inventory availability (198,400 pcs) with improved forward voltage performance (0.95 V @ 2 A) and fast recovery characteristics (35 ns). ES2D-13-F from Diodes Incorporated provides the lowest forward voltage (0.92 V @ 2 A) with fastest recovery time (25 ns) and highest inventory (130,906 pcs). S2DH from Taiwan Semiconductor Corporation matches the original forward voltage (1.15 V @ 2 A) with slightly faster recovery (1.5 µs vs. 2 µs) and includes AEC-Q101 automotive qualification.

Higher Current Alternatives (3 A and 4 A Ratings):

MUR320SB and HS3DB R5G provide 3 A current capacity while maintaining 200 V reverse voltage. MUR320SB is Active status with 763 pcs inventory and offers fast recovery (25 ns) with 0.90 V forward voltage @ 3 A. HS3DB R5G is Discontinued at DiGi Electronics with limited inventory (3,893 pcs). STTH4R02U from STMicroelectronics provides 4 A capacity with Active status and 20,100 pcs inventory, suitable for applications requiring increased current margin.

Lower Current Alternative:

STTH1R02U from STMicroelectronics operates at 1.5 A current rating. This part is suitable only for applications where the 2 A requirement can be reduced and should not be used as a direct substitute for the SB2D-M3/5BT in circuits designed for 2 A operation.

Compliance and Certification:

All recommended substitutes maintain RoHS3 compliance and REACH Unaffected status. S2DH includes AEC-Q101 automotive qualification for applications requiring automotive-grade components. All parts are classified under HTSUS 8541.10.0080 and ECCN EAR99.

Frequently Asked Questions (FAQ)

Q: Can ER2D-LTP be used as a direct replacement for SB2D-M3/5BT?

A: Yes. ER2D-LTP is a direct substitute with identical 200 V reverse voltage, 2 A current rating, and DO-214AA SMB package. The primary difference is improved recovery speed (35 ns vs. 2 µs) and lower forward voltage (0.95 V vs. 1.15 V @ 2 A), both of which are beneficial characteristics. Electrical and mechanical compatibility is confirmed.

Q: What is the difference between standard recovery and fast recovery diodes in this product line?

A: The SB2D-M3/5BT features standard recovery with 2 µs reverse recovery time. Fast recovery substitutes such as ER2D-LTP, ES2D, and ES2D-13-F have recovery times of 25-35 ns. Fast recovery diodes reduce switching losses and are suitable for higher frequency applications. Both types maintain the same voltage and current ratings and package form factor.

Q: Is STTH1R02U suitable as a substitute for the SB2D-M3/5BT?

A: STTH1R02U is not a direct substitute. While it maintains 200 V reverse voltage and DO-214AA SMB packaging, the current rating is 1.5 A, which is below the 2 A specification of the SB2D-M3/5BT. Use STTH1R02U only in applications where 1.5 A current capacity is sufficient.

Q: Can I use MUR320SB or HS3DB R5G as substitutes?

A: MUR320SB and HS3DB R5G are higher current rated alternatives with 3 A capacity. Both maintain 200 V reverse voltage and DO-214AA SMB packaging. These parts are suitable for applications where increased current capacity is required or beneficial. MUR320SB is Active status with better inventory availability than HS3DB R5G, which is Discontinued at DiGi Electronics.

Q: What is the advantage of STTH4R02U over the SB2D-M3/5BT?

A: STTH4R02U provides 4 A current capacity compared to the 2 A rating of SB2D-M3/5BT, while maintaining 200 V reverse voltage and DO-214AA SMB packaging. This higher current rating provides design margin and is suitable for applications requiring increased current handling. STTH4R02U is Active status with 20,100 pcs inventory.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed are RoHS3 compliant and REACH Unaffected, matching the compliance status of the SB2D-M3/5BT.

Q: Does S2DH have any special qualifications?

A: S2DH includes AEC-Q101 automotive qualification, making it suitable for automotive applications requiring automotive-grade component certification. The SB2D-M3/5BT does not carry this qualification. S2DH maintains identical electrical specifications (200 V, 2 A, 1.15 V forward voltage) and DO-214AA SMB packaging.

Q: What packaging options are available for these substitutes?

A: All substitute parts are available in DO-214AA (SMB) surface mount package, matching the SB2D-M3/5BT. Packaging formats vary between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel®, which are handling and delivery format differences that do not affect electrical or mechanical compatibility.

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