Equivalent & Substitute Parts for S3DHE3_A/I

Part Overview

The S3DHE3_A/I 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 Active in product status and carries AEC-Q101 automotive qualification with ROHS3 compliance. Substitute parts are identified to provide equivalent electrical performance, alternative sourcing options, or enhanced specifications within the same package category and voltage/current ratings.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	200	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 2.5 A	V
Reverse Recovery Time (trr)	2.5	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
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the S3DHE3_A/I are grouped based on the following critical parameters that determine functional equivalence:

Primary Equivalence Criteria:

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

Secondary Compatibility Factors:

Operating Temperature Range: Minimum -55°C junction temperature
RoHS Status: ROHS3 Compliant
Reverse Recovery Time (trr): Standard recovery (>500 ns) or faster recovery (≤500 ns)
Forward Voltage (Vf): Variations within typical rectifier specifications

Parts are classified as parametric equivalents when all primary criteria are met. Parts with enhanced specifications (faster recovery time, lower forward voltage, or higher current rating) are identified as upgrades or manufacturer-recommended alternatives. Packaging format variations (Tape & Reel versus Cut Tape) do not affect electrical equivalence.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) [V]	trr [µs/ns]	Ir @ Vr [µA]	Tj (Min) [°C]	Tj (Max) [°C]	Package	Packaging Format
S3DHE3_A/I	Vishay	200	3	1.15 @ 2.5A	2.5 µs	10 @ 200V	-55	150	DO-214AB	Tape & Reel
S3D-E3/57T	Vishay	200	3	1.15 @ 2.5A	2.5 µs	10 @ 200V	-55	150	DO-214AB	Cut Tape
S3D-13-F	Diodes Inc.	200	3	1.15 @ 3A	2.5 µs	10 @ 200V	-65	150	DO-214AB	Tape & Reel
ER3D-TP	Micro Commercial Co	200	3	0.95 @ 3A	35 ns	5 @ 200V	-50	175	DO-214AB	Tape & Reel
ES3D	Diotec	200	3	0.90 @ 3A	20 ns	5 @ 200V	-50	150	DO-214AB	Cut Tape & Digi-Reel
ES3D-13-F	Diodes Inc.	200	3	0.90 @ 3A	25 ns	10 @ 200V	-55	150	DO-214AB	Cut Tape & Digi-Reel
STTH302S	STMicroelectronics	200	3	0.95 @ 3A	35 ns	3 @ 200V	—	175	DO-214AB	Cut Tape & Digi-Reel
STTH3R02S	STMicroelectronics	200	3	1.00 @ 3A	30 ns	3 @ 200V	—	175	DO-214AB	Cut Tape & Digi-Reel
STTH4R02S	STMicroelectronics	200	4	1.05 @ 4A	30 ns	3 @ 200V	—	175	DO-214AB	Cut Tape & Digi-Reel
STTH4R02SY	STMicroelectronics	200	4	1.05 @ 4A	30 ns	3 @ 200V	-40	175	DO-214AB	Tape & Reel

Engineering Selection Recommendations

Direct Parametric Equivalents (Identical Electrical Performance):

S3D-E3/57T is a direct parametric equivalent to S3DHE3_A/I, differing only in packaging format (Cut Tape versus Tape & Reel). Both parts are manufactured by Vishay, carry identical electrical specifications, and maintain the same operating temperature range and compliance status. Selection between these two depends on procurement and assembly line requirements.

Upgraded Alternatives (Enhanced Specifications):

S3D-13-F (Diodes Incorporated), ER3D-TP (Micro Commercial Co), ES3D (Diotec), and ES3D-13-F (Diodes Incorporated) provide faster recovery characteristics (20–35 ns versus 2.5 µs) and lower forward voltage drops (0.90–0.95 V versus 1.15 V). These parts maintain 200 V / 3 A ratings and DO-214AB packaging. ER3D-TP and ES3D extend the maximum junction temperature to 175°C. All upgraded alternatives carry ROHS3 compliance and REACH Unaffected status.

Higher Current Alternatives (Uprated Performance):

STTH4R02S and STTH4R02SY are rated for 4 A average rectified current while maintaining 200 V reverse voltage and DO-214AB packaging. These parts support applications requiring higher current capacity. STTH4R02SY includes automotive qualification (AEC-Q101) and extended temperature range (-40°C to 175°C), matching the automotive-grade status of the original part.

Selection Criteria Based on Product Status and Compliance:

All substitute parts listed are Active in product status. Parts with automotive qualification (STTH4R02SY) are suitable for automotive applications requiring AEC-Q101 certification. All alternatives maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory alignment with the original S3DHE3_A/I specification.

Frequently Asked Questions (FAQ)

Q: Can S3D-E3/57T be used as a direct replacement for S3DHE3_A/I?

A: Yes. S3D-E3/57T is a parametric equivalent with identical electrical specifications (200 V, 3 A, 1.15 V forward voltage, 2.5 µs recovery time). The only difference is packaging format: S3D-E3/57T is supplied in Cut Tape format while S3DHE3_A/I is supplied in Tape & Reel. Both are manufactured by Vishay and carry the same compliance certifications.

Q: What is the advantage of using ER3D-TP or ES3D-13-F instead of the original S3DHE3_A/I?

A: ER3D-TP and ES3D-13-F feature faster reverse recovery times (35 ns and 25 ns respectively, compared to 2.5 µs) and lower forward voltage drops (0.95 V and 0.90 V respectively, compared to 1.15 V). These characteristics reduce switching losses and heat generation in rectifier circuits. Both parts maintain 200 V / 3 A ratings and DO-214AB packaging. Operating temperature range extends to 175°C for ER3D-TP.

Q: Is STTH4R02S suitable for applications designed for the S3DHE3_A/I?

A: STTH4R02S is electrically compatible for circuits rated at 200 V reverse voltage and surface mount DO-214AB packaging. However, STTH4R02S is rated for 4 A average rectified current, exceeding the 3 A specification of S3DHE3_A/I. This higher current rating does not create incompatibility; the part operates safely in 3 A applications. STTH4R02S features faster recovery (30 ns) and lower forward voltage (1.05 V @ 4A) compared to the original part.

Q: Does packaging format (Tape & Reel versus Cut Tape) affect electrical performance?

A: No. Packaging format affects only procurement, storage, and assembly line handling. Electrical performance, thermal characteristics, and reliability are identical between Tape & Reel and Cut Tape formats of the same part number. Selection depends on manufacturing process requirements and inventory management.

Q: Which substitute part is recommended for automotive applications?

A: STTH4R02SY is the only substitute part listed with automotive qualification (AEC-Q101) and automotive-grade designation. It maintains 200 V / 4 A ratings, DO-214AB packaging, and extended operating temperature range (-40°C to 175°C). STTH4R02SY is suitable for automotive applications requiring AEC-Q101 certification.

Q: Can I use ES3D (Diotec) in place of S3DHE3_A/I?

A: Yes. ES3D meets the primary equivalence criteria: 200 V reverse voltage, 3 A current rating, and DO-214AB surface mount package. ES3D features superior performance characteristics (20 ns recovery time, 0.90 V forward voltage, 5 µA reverse leakage). Operating temperature range is -50°C to 150°C, matching the upper limit of S3DHE3_A/I. ES3D carries ROHS3 compliance and REACH Unaffected status.

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

A: S3DHE3_A/I and S3D-E3/57T are standard recovery diodes with 2.5 µs reverse recovery time. ER3D-TP, ES3D, ES3D-13-F, STTH302S, STTH3R02S, STTH4R02S, and STTH4R02SY are fast recovery diodes with recovery times between 20 ns and 35 ns. Fast recovery diodes reduce switching losses and are preferred in high-frequency switching applications. Both types are electrically compatible in 200 V / 3 A circuits; selection depends on application frequency and efficiency requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed carry ROHS3 compliance status. All parts also maintain REACH Unaffected status, ensuring regulatory alignment with environmental and hazardous substance restrictions.

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