SB2D-M3/52T Equivalent & Substitute Parts

Part Overview

The SB2D-M3/52T is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount diode operates at 200 V DC reverse voltage with a 2 A average rectified current rating and is housed in a DO-214AA (SMB) package. The device is classified as Active product status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across the specified parameter range. Alternative sources provide equivalent or enhanced performance characteristics while maintaining the same package footprint and mounting technology.

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-M3/52T are qualified based on the following criteria:

Primary Electrical Parameters:

Voltage - DC Reverse (Vr) (Max): 200 V minimum
Current - Average Rectified (Io): 2 A minimum
Package / Case: DO-214AA or SMB equivalent
Mounting Type: Surface Mount

Secondary Compatibility Parameters:

Operating Temperature Range: Must support minimum -55°C to 150°C junction temperature
RoHS3 Compliance: Required for environmental and regulatory compatibility
Moisture Sensitivity Level: MSL 1 preferred for handling consistency

Parts are grouped into two categories:

Direct Equivalents (Same Electrical Rating): Parts with 200 V reverse voltage and 2 A current rating maintain identical electrical specifications and are interchangeable without circuit redesign.

Enhanced Performance Substitutes (Higher Current Rating): Parts with 200 V reverse voltage and current ratings exceeding 2 A provide superior performance margin and are suitable for applications requiring additional current capacity within the same voltage class.

Note: STTH1R02U is listed as a substitute despite 1.5 A current rating, as it maintains 200 V reverse voltage and DO-214AA package compatibility. Applications requiring full 2 A capacity should verify current margin requirements.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs/ns]	Ir @ Vr [µA]	Package	Temp Range [°C]	RoHS3
SB2D-M3/52T	Vishay General Semiconductor	200	2	1.15 @ 2 A	2 µs	1 @ 200 V	DO-214AA (SMB)	-55 to 150	Yes
S2D	Diotec Semiconductor	200	2	1.15 @ 2 A	1.5 µs	5 @ 200 V	DO-214AA (SMB)	-50 to 150	Yes
ER2D-LTP	Micro Commercial Co	200	2	0.95 @ 2 A	35 ns	5 @ 200 V	DO-214AA (SMB)	-65 to 175	Yes
ES2D	Good-Ark Semiconductor	200	2	0.95 @ 2 A	35 ns	10 @ 200 V	DO-214AA (SMB)	-55 to 150	Yes
ES2D-13-F	Diodes Incorporated	200	2	0.92 @ 2 A	25 ns	5 @ 200 V	DO-214AA (SMB)	-55 to 150	Yes
STTH1R02U	STMicroelectronics	200	1.5	1.0 @ 1.5 A	30 ns	3 @ 200 V	DO-214AA (SMB)	—	Yes
STTH4R02U	STMicroelectronics	200	4	1.05 @ 4 A	30 ns	3 @ 200 V	DO-214AA (SMB)	—	Yes

Engineering Selection Recommendations

Direct Substitution (Equivalent Electrical Performance):

S2D, ER2D-LTP, ES2D, and ES2D-13-F are qualified as direct substitutes for the SB2D-M3/52T. All maintain 200 V reverse voltage and 2 A current ratings with DO-214AA package compatibility. These parts are Active product status with RoHS3 compliance and MSL 1 rating.

ER2D-LTP and ES2D-13-F offer improved reverse recovery time characteristics (35 ns and 25 ns respectively versus 2 µs for the SB2D-M3/52T), resulting in reduced switching losses and improved efficiency in rectification applications. Forward voltage drop is also reduced across these alternatives (0.92 V to 0.95 V versus 1.15 V), contributing to lower power dissipation.

S2D maintains forward voltage specification identical to the SB2D-M3/52T (1.15 V @ 2 A) with slightly improved reverse recovery time (1.5 µs), providing a conservative substitution path with minimal performance deviation.

Current-Rated Alternatives:

STTH1R02U (1.5 A rating) and STTH4R02U (4 A rating) are available from STMicroelectronics with 200 V reverse voltage and DO-214AA package compatibility. STTH1R02U operates below the 2 A specification and is suitable only for applications with reduced current requirements. STTH4R02U provides doubled current capacity and is appropriate for designs requiring enhanced current margin within the 200 V voltage class.

Compliance and Regulatory Status:

All substitute parts maintain RoHS3 compliance and are classified as Active product status. ER2D-LTP and ES2D-13-F support extended operating temperature ranges (-65°C to 175°C and -55°C to 150°C respectively), providing thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can S2D be used as a direct replacement for SB2D-M3/52T?

A: Yes. S2D maintains identical voltage (200 V) and current (2 A) ratings with DO-214AA package compatibility. Forward voltage specification is identical at 1.15 V @ 2 A. Reverse recovery time is improved at 1.5 µs versus 2 µs. Both parts are RoHS3 compliant with MSL 1 rating.

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

A: The SB2D-M3/52T is classified as standard recovery with 2 µs reverse recovery time. Substitute parts ER2D-LTP, ES2D, and ES2D-13-F are fast recovery devices with reverse recovery times of 35 ns, 35 ns, and 25 ns respectively. Fast recovery diodes reduce switching losses and are preferred in high-frequency rectification and switching power supply applications.

Q: Is STTH1R02U suitable for applications requiring 2 A continuous current?

A: No. STTH1R02U is rated for 1.5 A average rectified current, which is below the 2 A specification of the SB2D-M3/52T. This part is suitable only for applications with maximum current requirements of 1.5 A or less.

Q: Can STTH4R02U be used in place of SB2D-M3/52T?

A: Yes. STTH4R02U maintains 200 V reverse voltage and DO-214AA package compatibility with a 4 A current rating, providing 2 A margin above the original specification. This part is suitable for applications where additional current capacity is beneficial. Forward voltage at 4 A is 1.05 V, which is lower than the SB2D-M3/52T specification at 2 A.

Q: What are the packaging differences between substitute parts?

A: All substitute parts use DO-214AA (SMB) surface mount package, maintaining identical footprint and mounting compatibility with the SB2D-M3/52T. Packaging format varies between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel® options, which affects handling and assembly processes but not electrical or mechanical compatibility.

Q: Which substitute offers the lowest forward voltage drop?

A: ES2D-13-F provides the lowest forward voltage at 0.92 V @ 2 A, compared to 1.15 V @ 2 A for the SB2D-M3/52T. This 0.23 V reduction results in lower power dissipation and improved efficiency in rectification circuits.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (S2D, ER2D-LTP, ES2D, ES2D-13-F, STTH1R02U, and STTH4R02U) are RoHS3 compliant and suitable for applications with environmental and regulatory compliance requirements.

Q: What is the operating temperature range difference between SB2D-M3/52T and ER2D-LTP?

A: SB2D-M3/52T operates from -55°C to 150°C junction temperature. ER2D-LTP extends this range to -65°C to 175°C, providing 10°C additional margin at both low and high temperature extremes. This extended range is beneficial for applications in extreme thermal environments.

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