S2D-LTP Equivalent & Substitute Parts

Part Overview

The S2D-LTP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AA (SMB) package. This part is classified as "Not For New Designs," indicating it has reached end-of-life status. Equivalent and substitute parts are necessary to maintain design continuity, support legacy systems, and enable procurement from active product lines with comparable electrical and mechanical characteristics.

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
Speed	Standard Recovery >500ns, > 200mA (Io)	-
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

Substitution of the S2D-LTP is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 2 A
Package / Case: DO-214AA, SMB
Mounting Type: Surface Mount
Operating Temperature Range: Compatible with -55°C to 150°C minimum

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: 1.15 V @ 2 A or lower
Speed Classification: Standard or Fast Recovery
Current - Reverse Leakage @ Vr: 5 µA @ 200 V or lower
RoHS3 Compliance: Required

Substitute parts are grouped into two categories:

Direct Equivalents (Identical Electrical Specifications): Parts with matching voltage, current, forward voltage, and recovery speed characteristics.

Parametric Equivalents (Enhanced Performance): Parts with identical or superior voltage and current ratings, improved forward voltage characteristics, or faster recovery times, suitable for direct replacement with performance benefits.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	Speed	Ir @ Vr [µA]	Package	Product Status	RoHS3
S2D-LTP	Micro Commercial Co	200	2	1.15 @ 2A	Standard Recovery >500ns	5 @ 200V	DO-214AA, SMB	Not For New Designs	Yes
ES2DH	Taiwan Semiconductor Corporation	200	2	0.95 @ 2A	Fast Recovery ≤500ns	10 @ 200V	DO-214AA, SMB	Active	Yes
MUR320SBHR5G	Taiwan Semiconductor Corporation	200	3	0.90 @ 3A	Fast Recovery ≤500ns	5 @ 200V	DO-214AA, SMB	Discontinued at DiGi Electronics	Yes
S2D	Diotec Semiconductor	200	2	1.15 @ 2A	Standard Recovery >500ns	5 @ 200V	DO-214AA, SMB	Active	Yes
S2DH	Taiwan Semiconductor Corporation	200	2	1.15 @ 2A	Standard Recovery >500ns	1 @ 200V	DO-214AA, SMB	Active	Yes
SB2D-M3/5BT	Vishay General Semiconductor - Diodes Division	200	2	1.15 @ 2A	Standard Recovery >500ns	1 @ 200V	DO-214AA, SMB	Active	Yes

Engineering Selection Recommendations

For Direct Replacement (Identical Performance):

The S2D manufactured by Diotec Semiconductor is a direct functional equivalent to the S2D-LTP. Both parts share identical electrical specifications: 200 V reverse voltage, 2 A average rectified current, 1.15 V forward voltage at 2 A, and standard recovery speed characteristics. The S2D is currently in Active product status with 3,049 units in stock, making it the primary choice for legacy system support and design continuity.

For Enhanced Performance with Backward Compatibility:

The S2DH (Taiwan Semiconductor Corporation) and SB2D-M3/5BT (Vishay) are parametric equivalents that maintain identical voltage and current ratings while offering improved reverse leakage characteristics (1 µA versus 5 µA at 200 V). Both parts are Active products with substantial inventory availability. The S2DH includes AEC-Q101 automotive qualification, and the SB2D-M3/5BT is manufactured by a major semiconductor supplier. These parts are suitable for applications where lower leakage current provides operational benefits.

For Higher Current Capability:

The ES2DH (Taiwan Semiconductor Corporation) and MUR320SBHR5G (Taiwan Semiconductor Corporation) offer fast recovery characteristics with improved forward voltage performance. The ES2DH maintains the 2 A rating with 0.95 V forward voltage and is Active. The MUR320SBHR5G provides 3 A capability at 0.90 V forward voltage but is discontinued at DiGi Electronics. These options are applicable when circuit design permits higher current capacity or when fast recovery switching characteristics are beneficial.

Compliance and Certification:

All substitute parts listed are RoHS3 compliant and REACH unaffected, matching the environmental compliance profile of the S2D-LTP. Parts with AEC-Q101 qualification (S2DH, SB2D-M3/5BT) are suitable for automotive and high-reliability applications.

Frequently Asked Questions (FAQ)

Q: Can the S2D-LTP be replaced with the S2D from Diotec Semiconductor?

A: Yes. The S2D from Diotec Semiconductor is a direct equivalent with identical electrical specifications: 200 V reverse voltage, 2 A average rectified current, 1.15 V forward voltage at 2 A, and standard recovery speed. Both use the DO-214AA (SMB) surface mount package. The S2D is currently Active with 3,049 units in stock.

Q: What is the difference between the S2DH and the original S2D-LTP?

A: The S2DH maintains identical voltage, current, and forward voltage specifications but offers superior reverse leakage performance (1 µA versus 5 µA at 200 V). The S2DH includes AEC-Q101 automotive qualification and is manufactured by Taiwan Semiconductor Corporation. Both use the DO-214AA package and are suitable for direct replacement.

Q: Is the ES2DH a suitable substitute for the S2D-LTP?

A: The ES2DH is a suitable substitute with the same 200 V reverse voltage and 2 A current rating. It offers improved forward voltage (0.95 V versus 1.15 V at 2 A) and fast recovery characteristics. The ES2DH is Active with 3,896 units in stock and includes AEC-Q101 automotive qualification. The package and mounting type are identical.

Q: Can I use the MUR320SBHR5G as a replacement for the S2D-LTP?

A: The MUR320SBHR5G is compatible from an electrical standpoint, sharing the 200 V reverse voltage rating and DO-214AA package. However, it is rated for 3 A average rectified current (versus 2 A) and offers fast recovery characteristics. This part is discontinued at DiGi Electronics, making it unsuitable for new procurement. Use only if existing inventory is available and higher current capability is acceptable for the application.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed (ES2DH, S2D, S2DH, SB2D-M3/5BT, and MUR320SBHR5G) are RoHS3 compliant and REACH unaffected, matching the environmental compliance of the S2D-LTP.

Q: What is the difference between Standard Recovery and Fast Recovery diodes?

A: The S2D-LTP uses Standard Recovery (>500 ns reverse recovery time), while ES2DH and MUR320SBHR5G use Fast Recovery (≤500 ns). Fast recovery diodes switch more quickly, reducing switching losses in high-frequency applications. Standard recovery diodes are suitable for lower-frequency rectification. Both types are compatible with the same voltage and current specifications.

Q: Can I substitute a 3 A diode for a 2 A application?

A: Yes. The MUR320SBHR5G is rated for 3 A and can be used in applications designed for 2 A operation. The higher current rating provides additional margin and does not degrade performance in lower-current applications. However, verify that the improved forward voltage (0.90 V at 3 A) and fast recovery characteristics are acceptable for the circuit design.

Q: What is the operating temperature range for substitute parts?

A: The S2D-LTP operates from -55°C to 150°C. The S2D (Diotec) operates from -50°C to 150°C. The ES2DH, S2DH, and SB2D-M3/5BT operate from -55°C to 150°C. The MUR320SBHR5G operates from -55°C to 175°C. All parts are compatible with the S2D-LTP temperature range, with some offering extended upper temperature limits.

Q: Are there packaging differences between substitute parts?

A: All substitute parts use the DO-214AA (SMB) surface mount package, identical to the S2D-LTP. Packaging differences exist only in tape format: the S2D-LTP, S2D, S2DH, and SB2D-M3/5BT are supplied in Tape & Reel (TR), while the MUR320SBHR5G is supplied in Cut Tape (CT). Both formats are compatible with standard pick-and-place assembly equipment.

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