RS2D-M3/5BT Equivalent & Substitute Parts

Part Overview

The RS2D-M3/5BT is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount device operates at 200 V DC reverse voltage with 1.5 A average rectified current in a DO-214AA (SMB) package. The part is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance, mechanical compatibility, and regulatory compliance can be maintained across different manufacturers or product variants within the same base series.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1.5	A
Voltage - Forward (Vf) (Max) @ If	1.3 @ 1.5	V @ A
Speed	Fast Recovery ≤ 500ns, > 200mA (Io)	-
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	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 RS2D-M3/5BT are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical voltage rating (200 V), current rating (1.5 A), package type (DO-214AA SMB), and mounting configuration. These parts are direct functional replacements with no circuit redesign required.

Manufacturer Recommended Alternatives meet the core voltage and package requirements but may differ in secondary parameters such as forward voltage, recovery time, or maximum operating temperature. These parts are suitable for applications where the specified electrical characteristics provide adequate performance margin.

The following parameters determine substitution eligibility:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 200 V
Current - Average Rectified (Io): Must equal or exceed 1.5 A
Package / Case: Must be DO-214AA or SMB equivalent
Mounting Type: Must be Surface Mount
RoHS Status: Must be ROHS3 Compliant

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V @ A]	Speed	trr [ns]	Ir @ Vr [µA @ V]	Package	Tj (Max) [°C]
RS2D-M3/5BT	Vishay	200	1.5	1.3 @ 1.5	Fast Recovery ≤ 500ns	150	5 @ 200	DO-214AA SMB	150
RS2D-E3/52T	Vishay	200	1.5	1.3 @ 1.5	Fast Recovery ≤ 500ns	150	5 @ 200	DO-214AA SMB	150
RS2D-E3/5BT	Vishay	200	1.5	1.3 @ 1.5	Fast Recovery ≤ 500ns	150	5 @ 200	DO-214AA SMB	150
S2D-13-F	Diodes Incorporated	200	1.5	1.15 @ 1.5	Standard Recovery > 500ns	-	5 @ 200	DO-214AA SMB	150
STTH2R02U	STMicroelectronics	200	2	1 @ 2	Fast Recovery ≤ 500ns	30	3 @ 200	DO-214AA SMB	175
STTH4R02U	STMicroelectronics	200	4	1.05 @ 4	Fast Recovery ≤ 500ns	30	3 @ 200	DO-214AA SMB	175

Engineering Selection Recommendations

Direct Substitutes (Parametric Equivalents):

RS2D-E3/52T and RS2D-E3/5BT are parametric equivalents from Vishay General Semiconductor - Diodes Division. Both parts maintain identical electrical specifications to the RS2D-M3/5BT across voltage rating, current rating, forward voltage, recovery time, and reverse leakage current. All three parts are Active status, ROHS3 compliant, and MSL 1 rated. These parts are suitable for direct replacement without circuit modification.

Cross-Manufacturer Alternatives:

S2D-13-F (Diodes Incorporated) meets the 200 V voltage and 1.5 A current requirements in the same DO-214AA SMB package. This part exhibits lower forward voltage (1.15 V @ 1.5 A versus 1.3 V) and operates at standard recovery speed rather than fast recovery. The part is Active status and ROHS3 compliant. Selection of this part is appropriate when forward voltage reduction is beneficial to circuit performance.

STTH2R02U and STTH4R02U (STMicroelectronics) exceed the current rating requirement at 2 A and 4 A respectively, while maintaining the 200 V voltage rating and DO-214AA SMB package. Both parts feature fast recovery characteristics with significantly reduced reverse recovery time (30 ns versus 150 ns) and lower reverse leakage current (3 µA versus 5 µA). Maximum junction temperature is 175°C versus 150°C for the original part. These parts are suitable for applications requiring higher current capacity or improved switching performance.

All substitute parts are ROHS3 compliant, MSL 1 rated, and carry Active product status.

Frequently Asked Questions (FAQ)

Q: Can RS2D-E3/52T and RS2D-E3/5BT be used interchangeably with RS2D-M3/5BT?

A: Yes. Both parts are parametric equivalents with identical electrical specifications including voltage rating, current rating, forward voltage, recovery time, and reverse leakage current. All three parts are manufactured by Vishay in the same DO-214AA SMB package with identical operating temperature range and compliance certifications.

Q: What is the difference between the Vishay RS2D variants and the Diodes Incorporated S2D-13-F?

A: The S2D-13-F maintains the same 200 V voltage and 1.5 A current ratings in the same package. The primary difference is forward voltage: S2D-13-F exhibits 1.15 V @ 1.5 A compared to 1.3 V @ 1.5 A for the RS2D series. Additionally, S2D-13-F operates at standard recovery speed (>500 ns) rather than fast recovery (≤500 ns). Both parts are ROHS3 compliant and suitable for general-purpose rectification applications.

Q: When should STTH2R02U or STTH4R02U be selected instead of the original RS2D-M3/5BT?

A: The STMicroelectronics parts provide higher current capacity (2 A and 4 A respectively) and improved switching characteristics with 30 ns reverse recovery time versus 150 ns. These parts are appropriate for applications requiring higher current handling or reduced switching losses. The maximum junction temperature of 175°C also provides additional thermal margin compared to the 150°C rating of the RS2D-M3/5BT.

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

A: All substitute parts are available in DO-214AA (SMB) surface mount package. Packaging options differ by supplier: Vishay parts are supplied in Tape & Reel (TR) format, while STMicroelectronics parts are supplied in Cut Tape (CT) & Digi-Reel® format. Diodes Incorporated S2D-13-F is supplied in Tape & Reel (TR) format. The physical package dimensions and land pattern remain compatible across all parts.

Q: Do all substitute parts meet the same compliance requirements as the original part?

A: Yes. All substitute parts listed are ROHS3 compliant, MSL 1 rated (Unlimited moisture sensitivity), and REACH unaffected. All parts carry Active product status. Regulatory compliance is maintained across all substitution options.

Q: What is the impact of selecting a part with lower forward voltage such as S2D-13-F?

A: Lower forward voltage reduces power dissipation in the diode during conduction. For the S2D-13-F at 1.15 V versus 1.3 V, the power reduction is approximately 11.5% at rated current. This results in lower junction temperature rise and reduced thermal load on the circuit. The trade-off is standard recovery speed rather than fast recovery, which may increase switching losses in high-frequency applications.

Q: Can STTH4R02U be used in a circuit designed for 1.5 A operation?

A: Yes. STTH4R02U is rated for 4 A average rectified current, which exceeds the 1.5 A requirement. The part operates at lower stress levels when used in a 1.5 A circuit, resulting in improved reliability and reduced junction temperature. The 200 V voltage rating matches the original specification. This configuration is suitable for applications where component derating is desired.

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