S2D Equivalent & Substitute Parts Reference

Part Overview

The S2D is a general-purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 200 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AA (SMB) package. This component is classified as Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified based on matching or superior electrical performance within the same package category, enabling direct replacement in circuit designs where component availability or supply chain requirements necessitate alternative sourcing.

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
Reverse Recovery Time (trr)	1.5	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 S2D are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalent (Direct Replacement): Parts that match all critical electrical parameters—200 V reverse voltage, 2 A average rectified current, DO-214AA package, and surface mount configuration—with identical or superior performance characteristics. These parts satisfy the same circuit requirements without design modification.

Similar Equivalent (Functional Replacement): Parts that maintain the same reverse voltage rating and package form factor but may differ in forward voltage, reverse recovery time, reverse leakage current, or operating temperature range. These parts are suitable for applications where the specific performance variation does not impact circuit operation.

Key Parameters for Substitution Determination:

Voltage - DC Reverse (Vr) (Max): Must equal or exceed 200 V
Current - Average Rectified (Io): Must equal or exceed 2 A
Package / Case: Must be DO-214AA (SMB) or compatible surface mount package
Mounting Type: Must be Surface Mount
Operating Temperature Range: Must encompass the application requirement
RoHS Status: Must maintain ROHS3 compliance

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [ns]	Ir @ Vr [µA]	Package	Temp Range [°C]	Qualification
S2D	Taiwan Semiconductor Corporation	200	2	1.15 @ 2A	1500	1 @ 200V	DO-214AA (SMB)	-55 to 150	—
S2DH	Taiwan Semiconductor Corporation	200	2	1.15 @ 2A	1500	1 @ 200V	DO-214AA (SMB)	-55 to 150	AEC-Q101
ES2D-13-F	Diodes Incorporated	200	2	0.92 @ 2A	25	5 @ 200V	DO-214AA (SMB)	-55 to 150	—
ES2DA-13-F	Diodes Incorporated	200	2	0.92 @ 2A	25	5 @ 200V	DO-214AC (SMA)	-55 to 150	—
ES2DHE3_A/H	Vishay General Semiconductor - Diodes Division	200	2	0.90 @ 2A	20	10 @ 200V	DO-214AA (SMB)	-55 to 150	AEC-Q101
ES2DHE3_A/I	Vishay General Semiconductor - Diodes Division	200	2	0.90 @ 2A	20	10 @ 200V	DO-214AA (SMB)	-55 to 150	AEC-Q101
ESH2D-E3/52T	Vishay General Semiconductor - Diodes Division	200	2	0.93 @ 2A	35	2 @ 200V	DO-214AA (SMB)	-55 to 175	—
ESH2D-E3/5BT	Vishay General Semiconductor - Diodes Division	200	2	0.93 @ 2A	35	2 @ 200V	DO-214AA (SMB)	-55 to 175	—
MURS120-13-F	Diodes Incorporated	200	1	0.875 @ 1A	25	2 @ 200V	DO-214AA (SMB)	-55 to 175	—
MURS120-E3/52T	Vishay General Semiconductor - Diodes Division	200	1	0.875 @ 1A	35	2 @ 200V	DO-214AA (SMB)	-65 to 175	—
MURS120-E3/5BT	Vishay General Semiconductor - Diodes Division	200	2	0.875 @ 1A	35	2 @ 200V	DO-214AA (SMB)	-65 to 175	—

Engineering Selection Recommendations

Direct Parametric Equivalent:

The S2DH (Taiwan Semiconductor Corporation) is a parametric equivalent to the S2D, offering identical electrical specifications with the addition of AEC-Q101 automotive qualification. This part is suitable for direct replacement in all applications where the S2D is specified. The S2DH provides enhanced reliability documentation for automotive and mission-critical applications.

Functional Equivalents with Enhanced Performance:

Parts ES2D-13-F, ES2DHE3_A/H, ES2DHE3_A/I, ESH2D-E3/52T, and ESH2D-E3/5BT maintain the 200 V reverse voltage and 2 A current rating in DO-214AA packages. These parts exhibit lower forward voltage drops (0.90 to 0.93 V) compared to the S2D (1.15 V), resulting in reduced power dissipation. Parts from Vishay General Semiconductor (ES2DHE3 and ESH2D series) include AEC-Q101 qualification where specified. The ESH2D series extends the operating temperature range to 175°C, providing additional thermal margin for high-temperature applications.

Current-Limited Alternatives:

MURS120-13-F, MURS120-E3/52T, and MURS120-E3/5BT are rated for 1 A average rectified current. These parts are not suitable as direct replacements for the S2D in applications requiring 2 A continuous current capacity. However, MURS120-E3/5BT is specified with 2 A current rating and may be considered for applications where the lower current rating of other MURS120 variants is insufficient.

Package Consideration:

ES2DA-13-F is packaged in DO-214AC (SMA) format rather than DO-214AA (SMB). This part requires PCB layout modification and is not recommended as a direct mechanical substitute without design review.

Compliance and Certification:

All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the S2D. Parts with AEC-Q101 qualification (S2DH, ES2DHE3_A/H, ES2DHE3_A/I) are suitable for automotive applications requiring formal qualification documentation.

Frequently Asked Questions (FAQ)

Q: Can the S2DH be used as a direct replacement for the S2D?

A: Yes. The S2DH is a parametric equivalent with identical electrical specifications (200 V, 2 A, 1.15 V forward voltage, 1.5 µs reverse recovery time). The S2DH includes AEC-Q101 automotive qualification, making it suitable for all applications where the S2D is specified.

Q: What is the primary difference between the S2D and ES2D-13-F?

A: Both parts are rated for 200 V and 2 A in DO-214AA packages. The ES2D-13-F exhibits lower forward voltage (0.92 V versus 1.15 V) and faster reverse recovery time (25 ns versus 1500 ns). These characteristics reduce power dissipation and switching losses, making the ES2D-13-F suitable for high-frequency switching applications.

Q: Can MURS120 series parts replace the S2D?

A: MURS120-13-F and MURS120-E3/52T are rated for 1 A average rectified current and are not suitable for applications requiring 2 A continuous current. MURS120-E3/5BT is specified with 2 A current rating and may be used as a substitute, though it exhibits lower forward voltage (0.875 V @ 1 A specification) and faster recovery characteristics.

Q: Why does ES2DA-13-F have a different package designation?

A: ES2DA-13-F is packaged in DO-214AC (SMA) format, which differs mechanically from the DO-214AA (SMB) package of the S2D. SMA packages are smaller and require different PCB footprints. This part is not recommended as a direct mechanical substitute without PCB layout modification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the S2D.

Q: What is the significance of AEC-Q101 qualification?

A: AEC-Q101 is an automotive industry qualification standard. Parts with this certification (S2DH, ES2DHE3_A/H, ES2DHE3_A/I) have undergone formal reliability testing and are approved for automotive applications. Non-qualified parts may be used in non-automotive applications where formal automotive certification is not required.

Q: Can the ESH2D series be used in applications with operating temperatures above 150°C?

A: Yes. The ESH2D-E3/52T and ESH2D-E3/5BT are rated for operating temperatures up to 175°C, extending the thermal operating range by 25°C compared to the S2D. These parts are suitable for high-temperature applications within this extended range.

Q: What packaging options are available for 200 V, 2 A rectifier diodes?

A: The S2D and most substitute parts are available in DO-214AA (SMB) surface mount packages. ES2DA-13-F is available in DO-214AC (SMA) format. All listed parts are surface mount configurations suitable for automated assembly.

Q: How does reverse recovery time affect circuit performance?

A: Reverse recovery time (trr) determines the switching speed of the diode. The S2D has a trr of 1500 ns (standard recovery), while ES2D and ESH2D series parts have trr values of 20 to 35 ns (fast recovery). Fast recovery diodes are preferred in high-frequency switching applications to reduce switching losses and electromagnetic interference.

Q: Is the S2D suitable for high-frequency rectification applications?

A: The S2D is classified as standard recovery with a reverse recovery time of 1500 ns. For high-frequency applications (above 100 kHz), fast recovery alternatives such as ES2D-13-F (25 ns trr) or ES2DHE3 series (20 ns trr) are recommended to minimize switching losses and improve efficiency.

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