CS3D-E3/H Equivalent & Substitute Parts

Part Overview

The CS3D-E3/H is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 200 V DC reverse voltage and 3 A average rectified current in a DO-214AB (SMC) surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and design continuity. The diode operates across a junction temperature range of -55°C to 150°C and exhibits standard recovery characteristics with a reverse recovery time of 2.8 µs.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 3 A	V
Reverse Recovery Time (trr)	2.8	µs
Current - Reverse Leakage @ Vr	10	µA @ 200 V
Package / Case	DO-214AB, SMC	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Product Status	Obsolete	—

Substitute Part Grouping Explanation

Substitution of the CS3D-E3/H is determined by matching the following critical electrical and mechanical parameters:

Primary Matching Criteria:

Voltage - DC Reverse (Vr) (Max): 200 V
Current - Average Rectified (Io): 3 A
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount

Secondary Compatibility Factors:

Voltage - Forward (Vf) (Max) @ If: ≤ 1.2 V @ 3 A
Reverse Recovery Time (trr): ≤ 2.8 µs
Current - Reverse Leakage @ Vr: ≤ 10 µA @ 200 V
Operating Temperature - Junction: -55°C to 150°C (minimum)

Substitute parts are grouped into three categories based on their relationship to the main part:

Direct Manufacturer Equivalent: S3D-E3/57T (Vishay) — identical electrical specifications with active product status and improved availability.

Manufacturer Recommended Substitute: CMR5U-02 TR13 PBFREE (Central Semiconductor) — higher current rating (5 A) with compatible voltage and package specifications, suitable for applications requiring additional current margin.

Parametric Equivalents: S3D (Diodes Incorporated), S3D-TP (Micro Commercial Co), and S3D_R1_00001 (Panjit International) — all meet the primary matching criteria with minor variations in secondary parameters.

Parameter Comparison

Parameter	CS3D-E3/H (Main)	S3D-E3/57T	CMR5U-02 TR13 PBFREE	S3D	S3D-TP	S3D_R1_00001
Manufacturer	Vishay	Vishay	Central Semiconductor	Diodes Incorporated	Micro Commercial Co	Panjit International
Voltage - DC Reverse (Vr) (Max)	200 V	200 V	200 V	200 V	200 V	200 V
Current - Average Rectified (Io)	3 A	3 A	5 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.2 V @ 3 A	1.15 V @ 2.5 A	1.7 V @ 5 A	1.15 V @ 3 A	1.2 V @ 3 A	1.2 V @ 3 A
Reverse Recovery Time (trr)	2.8 µs	2.5 µs	22 ns	2 µs	—	—
Current - Reverse Leakage @ Vr	10 µA @ 200 V	10 µA @ 200 V	1 µA @ 600 V	10 µA @ 200 V	10 µA @ 200 V	1 µA @ 200 V
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-65 to 175°C	-65 to 150°C	-55 to 150°C	-55 to 150°C
Product Status	Obsolete	Active	Active	Obsolete	Not For New Designs	Active
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Preferred): Select S3D-E3/57T (Vishay General Semiconductor - Diodes Division). This part maintains identical electrical specifications to the CS3D-E3/H while offering active product status, superior availability (17,200 pcs in stock), and ROHS3 compliance. The packaging format is Cut Tape (CT), suitable for automated assembly processes.

For Higher Current Margin Applications: Select CMR5U-02 TR13 PBFREE (Central Semiconductor Corp) when the application circuit can accommodate a 5 A rated diode. This part provides enhanced current capacity, faster recovery time (22 ns), and extended operating temperature range (-65 to 175°C). It is supplied in Tape & Reel format and is ROHS3 compliant.

For Active Product Status with 3 A Rating: Select S3D_R1_00001 (Panjit International Inc.) as an alternative parametric equivalent. This part maintains the 3 A current rating, active product status, and ROHS3 compliance with improved reverse leakage characteristics (1 µA @ 200 V). It is supplied in Tape & Reel format with unlimited moisture sensitivity level.

Avoid for New Designs: S3D (Diodes Incorporated) and S3D-TP (Micro Commercial Co) are classified as obsolete or not for new designs, respectively. These parts should be used only for legacy system maintenance or repair applications where design continuity is required.

Frequently Asked Questions (FAQ)

Q: Can the S3D-E3/57T directly replace the CS3D-E3/H without circuit modification?

A: Yes. The S3D-E3/57T maintains identical voltage (200 V), current (3 A), and package specifications (DO-214AB, SMC). Forward voltage and reverse recovery time are equivalent or superior. No circuit modification is required.

Q: What is the primary advantage of using CMR5U-02 TR13 PBFREE over S3D-E3/57T?

A: The CMR5U-02 TR13 PBFREE provides a higher current rating (5 A versus 3 A) and significantly faster recovery time (22 ns versus 2.5 µs). This part is suitable for applications requiring additional current margin or faster switching performance. The extended operating temperature range (-65 to 175°C) also provides thermal headroom.

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

A: All substitute parts use the DO-214AB (SMC) package for surface mount assembly. However, packaging formats differ: S3D-E3/57T is supplied in Cut Tape (CT), while CMR5U-02 TR13 PBFREE, S3D-TP, and S3D_R1_00001 are supplied in Tape & Reel (TR) format. Verify packaging compatibility with your assembly process.

Q: Which substitute part has the best product status for new designs?

A: S3D-E3/57T and S3D_R1_00001 both carry active product status. S3D-E3/57T is the preferred choice due to direct manufacturer equivalence and higher inventory availability. S3D_R1_00001 is an acceptable alternative with active status and improved reverse leakage characteristics.

Q: What is the difference in reverse leakage current between the main part and substitutes?

A: The CS3D-E3/H specifies 10 µA @ 200 V. S3D-E3/57T, S3D, and S3D-TP maintain this specification. CMR5U-02 TR13 PBFREE and S3D_R1_00001 offer improved leakage at 1 µA @ 200 V and 1 µA @ 200 V, respectively, representing a 10-fold reduction in reverse leakage current.

Q: Is RoHS compliance a consideration for substitution?

A: Yes. The CS3D-E3/H does not specify RoHS status. All active substitute parts (S3D-E3/57T, CMR5U-02 TR13 PBFREE, and S3D_R1_00001) are ROHS3 compliant, meeting current environmental and regulatory requirements for commercial and industrial applications.

Q: Can S3D-TP be used as a substitute despite its "Not For New Designs" status?

A: S3D-TP meets all primary electrical and mechanical matching criteria and is suitable for legacy system maintenance, repair, or retrofit applications. It should not be selected for new product designs. For new designs, use S3D-E3/57T or S3D_R1_00001.

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