Equivalent & Substitute Parts for RS2D-13

Part Overview

The RS2D-13 is a general-purpose rectifier diode manufactured by Diodes Incorporated, rated for 200 V DC reverse voltage and 1.5 A average rectified current in a surface mount SMB (DO-214AA) package. This part is classified as discontinued at DiGi Electronics, necessitating identification of equivalent and substitute components for ongoing design support and procurement.

The RS2D-13 features fast recovery characteristics with a reverse recovery time of 150 ns, making it suitable for applications requiring rapid switching performance. Equivalent and substitute parts are identified based on matching or exceeding the electrical and mechanical specifications of the original component.

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 V @ 1.5 A	V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Reverse Recovery Time (trr)	150	ns
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Capacitance @ Vr, F	30	pF @ 4V, 1MHz
Package / Case	DO-214AA, SMB	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-65 to 150	°C
RoHS Status	RoHS non-compliant	—

Substitute Part Grouping Explanation

Substitution of the RS2D-13 is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a DC reverse voltage rating of 200 V or higher to ensure safe operation within the original design envelope.

Current Rating: Substitute parts must support an average rectified current of 1.5 A or greater. Parts with higher current ratings (2 A, 4 A) are acceptable as they provide additional design margin.

Package and Mounting: All substitutes use the DO-214AA (SMB) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts.

Recovery Speed: The original RS2D-13 specifies fast recovery characteristics (≤ 500 ns). Substitute parts are grouped into two categories: fast recovery (matching the original specification) and standard recovery (> 500 ns), with the latter suitable only for applications where switching speed is not critical.

Temperature Range: Operating temperature ranges vary among substitutes. The original part specifies -65°C to 150°C; substitutes with narrower ranges (-55°C to 150°C or -40°C to 175°C) are acceptable for applications within those bounds.

Compliance Status: The original RS2D-13 is RoHS non-compliant. Active substitute parts are RoHS3 compliant, supporting modern procurement and environmental requirements.

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	Speed	trr [ns]	Ir @ Vr [µA]	Package	Status	RoHS
RS2D-13	Diodes Incorporated	200	1.5	1.3 @ 1.5A	Fast Recovery ≤ 500ns	150	5 @ 200V	DO-214AA, SMB	Discontinued	Non-compliant
RS2D-13-F	Diodes Incorporated	200	1.5	1.3 @ 1.5A	Fast Recovery ≤ 500ns	150	5 @ 200V	DO-214AA, SMB	Active	RoHS3 Compliant
RS2D-E3/52T	Vishay General Semiconductor - Diodes Division	200	1.5	1.3 @ 1.5A	Fast Recovery ≤ 500ns	150	5 @ 200V	DO-214AA, SMB	Active	RoHS3 Compliant
S1DBH	Taiwan Semiconductor Corporation	200	1.0	1.1 @ 1A	Standard Recovery > 500ns	—	5 @ 200V	DO-214AA, SMB	Active	RoHS3 Compliant
S2D-E3/52T	Vishay General Semiconductor - Diodes Division	200	1.5	1.15 @ 1.5A	Standard Recovery > 500ns	2000	1 @ 200V	DO-214AA, SMB	Active	RoHS3 Compliant
STTH1R02U	STMicroelectronics	200	1.5	1.0 @ 1.5A	Fast Recovery ≤ 500ns	30	3 @ 200V	DO-214AA, SMB	Active	RoHS3 Compliant
STTH2R02U	STMicroelectronics	200	2.0	1.0 @ 2A	Fast Recovery ≤ 500ns	30	3 @ 200V	DO-214AA, SMB	Active	RoHS3 Compliant
STTH4R02U	STMicroelectronics	200	4.0	1.05 @ 4A	Fast Recovery ≤ 500ns	30	3 @ 200V	DO-214AA, SMB	Active	RoHS3 Compliant
STTH4R02UY	STMicroelectronics	200	4.0	1.05 @ 4A	Fast Recovery ≤ 500ns	30	3 @ 200V	DO-214AA, SMB	Active	RoHS3 Compliant

Engineering Selection Recommendations

Direct Equivalent (Parametric Match):

RS2D-13-F is the direct parametric equivalent, manufactured by Diodes Incorporated with identical electrical specifications. This part is active and RoHS3 compliant, providing a drop-in replacement with no design modifications required. The only difference is packaging format (Tape & Reel vs. bulk), which does not affect electrical performance.

Primary Alternatives (Fast Recovery, Matched Current Rating):

STTH1R02U (STMicroelectronics) and RS2D-E3/52T (Vishay) both maintain the 200 V / 1.5 A specification with fast recovery characteristics. STTH1R02U offers superior reverse recovery time (30 ns vs. 150 ns), resulting in lower switching losses and reduced electromagnetic interference. RS2D-E3/52T provides a Vishay alternative with equivalent performance to the original RS2D-13.

Higher Current Alternatives (Fast Recovery, Increased Current Margin):

STTH2R02U (2 A) and STTH4R02U / STTH4R02UY (4 A) provide increased current capacity while maintaining 200 V reverse voltage and fast recovery characteristics. These parts are suitable for designs requiring additional thermal or current margin. STTH4R02UY includes automotive-grade qualification (AEC-Q101) and extended temperature range (-40°C to 175°C), supporting automotive and industrial applications.

Standard Recovery Alternative (Reduced Switching Speed):

S2D-E3/52T (Vishay) maintains the 200 V / 1.5 A specification but with standard recovery characteristics (2 µs reverse recovery time). This part is suitable for low-frequency or non-switching applications where fast recovery is not required. Lower reverse leakage current (1 µA vs. 5 µA) may provide benefits in high-impedance circuits.

Current-Reduced Alternative:

S1DBH (Taiwan Semiconductor Corporation) is rated for 200 V / 1.0 A with standard recovery characteristics and automotive qualification (AEC-Q101). This part is suitable only for applications where the 1.5 A current requirement can be reduced to 1.0 A.

All recommended substitutes are RoHS3 compliant and active in production, ensuring long-term availability and compliance with modern procurement standards.

Frequently Asked Questions (FAQ)

Q: Can RS2D-13-F be used as a direct replacement for RS2D-13?

A: Yes. RS2D-13-F is manufactured by the same supplier (Diodes Incorporated) with identical electrical specifications: 200 V reverse voltage, 1.5 A average rectified current, 1.3 V forward voltage drop, and 150 ns reverse recovery time. The only difference is packaging format (Tape & Reel). No circuit modifications are required.

Q: What is the difference between fast recovery and standard recovery diodes?

A: Fast recovery diodes (≤ 500 ns reverse recovery time) switch off more rapidly than standard recovery diodes (> 500 ns). Fast recovery diodes reduce switching losses and electromagnetic interference, making them suitable for high-frequency switching applications. Standard recovery diodes are adequate for low-frequency or non-switching applications and typically have lower forward voltage drops.

Q: Can STTH2R02U or STTH4R02U be used if the circuit only requires 1.5 A?

A: Yes. STTH2R02U (2 A) and STTH4R02U (4 A) can be used in circuits designed for 1.5 A operation. The higher current rating provides additional design margin and thermal headroom. No circuit modifications are required, as these parts maintain the same 200 V reverse voltage and DO-214AA package.

Q: What is the significance of the STTH4R02UY automotive qualification?

A: STTH4R02UY carries AEC-Q101 automotive qualification and is rated for -40°C to 175°C operation, compared to the standard STTH4R02U which is rated to 175°C maximum. The automotive variant is suitable for automotive, industrial, and high-reliability applications requiring extended temperature range and quality assurance.

Q: Is the RS2D-13 RoHS non-compliance a concern for new designs?

A: The RS2D-13 is RoHS non-compliant and discontinued. All active substitute parts (RS2D-13-F, RS2D-E3/52T, STTH1R02U, STTH2R02U, STTH4R02U, STTH4R02UY, S2D-E3/52T) are RoHS3 compliant. New designs should specify RoHS-compliant alternatives to meet modern procurement, environmental, and regulatory requirements.

Q: Can S1DBH be used as a substitute if the application requires 1.5 A?

A: No. S1DBH is rated for 1.0 A average rectified current, which is below the 1.5 A requirement of the RS2D-13. Using an undersized component creates risk of thermal stress and component failure. S1DBH is suitable only for applications where the current requirement is 1.0 A or less.

Q: What is the difference between RS2D-E3/52T and S2D-E3/52T?

A: RS2D-E3/52T (Vishay) maintains fast recovery characteristics (150 ns) and is a direct equivalent to RS2D-13. S2D-E3/52T (Vishay) has standard recovery characteristics (2 µs) and lower reverse leakage current (1 µA vs. 5 µA). RS2D-E3/52T is suitable for high-frequency switching; S2D-E3/52T is suitable for low-frequency or non-switching applications.

Q: Are all substitute parts available in the same DO-214AA (SMB) package?

A: Yes. All substitute parts listed use the DO-214AA (SMB) surface mount package, ensuring mechanical and electrical compatibility with existing PCB layouts. Packaging formats (Tape & Reel, Cut Tape, Digi-Reel) differ but do not affect electrical performance or PCB mounting.

Q: What is the advantage of STTH1R02U over RS2D-13-F?

A: STTH1R02U (STMicroelectronics) offers superior reverse recovery time (30 ns vs. 150 ns) and lower forward voltage drop (1.0 V vs. 1.3 V), resulting in reduced switching losses and improved efficiency. Both parts maintain 200 V / 1.5 A specifications. STTH1R02U is preferred for high-frequency switching applications where efficiency is critical.

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