CS2D-E3/I Equivalent & Substitute Parts

Part Overview

The CS2D-E3/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 1.6 A average rectified current in a surface mount DO-214AA (SMB) package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The diode features standard recovery characteristics with a reverse recovery time of 2.1 µs and operates across a junction temperature range of -55°C to 150°C.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	1.6	A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 2 A	V
Reverse Recovery Time (trr)	2.1	µs
Current - Reverse Leakage @ Vr	5	µA @ 200 V
Mounting Type	Surface Mount	—
Package / Case	DO-214AA, SMB	—
Operating Temperature - Junction	-55 to 150	°C
RoHS Status	ROHS3 Compliant	—
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the CS2D-E3/I is determined by the following critical parameters:

Voltage Rating: All substitute parts must maintain a DC reverse voltage rating of 200 V or greater
Current Rating: Substitute parts must support the required average rectified current of 1.6 A or higher
Package Type: All substitutes must use the DO-214AA (SMB) surface mount package for mechanical and electrical compatibility
Operating Temperature Range: Substitute parts must cover the required junction temperature range of -55°C to 150°C or broader
Compliance: All substitutes must maintain ROHS3 compliance and equivalent regulatory status

Substitute parts are grouped into two categories: direct replacements with matched or superior electrical ratings, and functionally equivalent alternatives with enhanced performance characteristics (faster recovery times, lower forward voltage, or higher current capacity).

Parameter Comparison

Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [µs/ns]	Package	Product Status	RoHS
CS2D-E3/I	Vishay General Semiconductor	200	1.6	1.15 @ 2 A	2.1 µs	DO-214AA (SMB)	Obsolete	ROHS3
S2D-E3/5BT	Vishay General Semiconductor	200	1.5	1.15 @ 1.5 A	2 µs	DO-214AA (SMB)	Active	ROHS3
CMR1S-02 BK PBFREE	Central Semiconductor Corp	200	1	0.95 @ 1 A	35 ns	DO-214AA (SMB)	Active	ROHS3
ES2D	Good-Ark Semiconductor	200	2	0.95 @ 2 A	35 ns	DO-214AA (SMB)	Active	ROHS3
ES2DH	Taiwan Semiconductor Corporation	200	2	0.95 @ 2 A	35 ns	DO-214AA (SMB)	Active	ROHS3
HS2D	SURGE	200	1.5	1.0 @ 1.5 A	50 ns	DO-214AA (SMB)	Active	ROHS3
MUR320SBHR5G	Taiwan Semiconductor Corporation	200	3	0.9 @ 3 A	25 ns	DO-214AA (SMB)	Discontinued at DiGi Electronics	ROHS3

Engineering Selection Recommendations

Primary Recommendation: S2D-E3/5BT

The S2D-E3/5BT from Vishay General Semiconductor is the preferred direct substitute. It maintains the same manufacturer lineage, identical voltage rating (200 V), and comparable current rating (1.5 A versus 1.6 A). The part is active in production with Tape & Reel packaging, ensuring long-term availability. It meets all compliance requirements (ROHS3, REACH Unaffected) and operates within the required temperature range (-55°C to 150°C). The slightly lower current rating (1.5 A) is acceptable for applications where the original 1.6 A specification provides design margin.

Secondary Recommendation: ES2D or ES2DH

Both ES2D (Good-Ark Semiconductor) and ES2DH (Taiwan Semiconductor Corporation) offer superior performance characteristics with 2 A current capacity, lower forward voltage (0.95 V), and faster recovery time (35 ns). ES2DH includes AEC-Q101 automotive qualification, making it suitable for automotive and high-reliability applications. Both parts are active in production and fully compliant. These options provide enhanced performance headroom for designs requiring improved efficiency or faster switching characteristics.

Alternative Recommendation: HS2D

The HS2D from SURGE provides a 1.5 A rating with fast recovery characteristics (50 ns) and lower forward voltage (1.0 V). This part is active in production with substantial inventory availability. It serves as a functional equivalent for applications where the original 1.6 A specification is not critical.

Not Recommended: CMR1S-02 BK PBFREE and MUR320SBHR5G

The CMR1S-02 BK PBFREE has a reduced current rating (1 A), which falls below the original 1.6 A specification and is unsuitable as a direct replacement. The MUR320SBHR5G is discontinued at DiGi Electronics, limiting procurement viability despite its superior 3 A rating and extended temperature range (-55°C to 175°C).

Frequently Asked Questions (FAQ)

Q: Can the S2D-E3/5BT replace the CS2D-E3/I directly without circuit modification?

A: Yes. The S2D-E3/5BT maintains identical voltage rating (200 V), comparable current rating (1.5 A versus 1.6 A), and the same DO-214AA package. Both parts operate within -55°C to 150°C and meet ROHS3 compliance. The 0.1 A difference in current rating is within typical design margins for general-purpose rectifier applications.

Q: What is the advantage of using ES2D or ES2DH over S2D-E3/5BT?

A: ES2D and ES2DH offer higher current capacity (2 A), lower forward voltage drop (0.95 V versus 1.15 V), and significantly faster recovery time (35 ns versus 2 µs). These characteristics reduce power dissipation and improve switching performance. ES2DH includes automotive qualification (AEC-Q101), making it suitable for automotive and mission-critical applications.

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

A: All substitute parts use the DO-214AA (SMB) surface mount package, ensuring mechanical compatibility. However, packaging formats differ: S2D-E3/5BT is supplied in Tape & Reel (TR), ES2D in Cut Tape (CT) & Digi-Reel®, ES2DH in Tape & Reel (TR), HS2D in Bag, and CMR1S-02 BK PBFREE in Bulk. Verify packaging compatibility with your assembly process requirements.

Q: Why is the CMR1S-02 BK PBFREE not recommended as a substitute?

A: The CMR1S-02 BK PBFREE has a maximum average rectified current of 1 A, which is below the original CS2D-E3/I specification of 1.6 A. This reduced current capacity makes it unsuitable for direct replacement in applications requiring the full 1.6 A rating.

Q: Is the MUR320SBHR5G a viable substitute despite being discontinued?

A: The MUR320SBHR5G is not recommended for new designs due to its discontinued status at DiGi Electronics, which limits long-term procurement availability. Although it offers superior specifications (3 A current, 25 ns recovery time, extended temperature range to 175°C), the discontinuation status creates supply chain risk.

Q: Do all substitute parts meet the same compliance standards as the original CS2D-E3/I?

A: All recommended substitute parts (S2D-E3/5BT, ES2D, ES2DH, HS2D) are ROHS3 compliant and REACH Unaffected, matching the original part's compliance status. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts, indicating no special handling requirements.

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

A: The CS2D-E3/I features standard recovery with a reverse recovery time of 2.1 µs. Substitute parts ES2D, ES2DH, HS2D, and MUR320SBHR5G feature fast recovery with reverse recovery times of 35 ns, 35 ns, 50 ns, and 25 ns respectively. Fast recovery reduces switching losses and improves efficiency in high-frequency applications, but standard recovery is adequate for low-frequency rectification.

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