S3AHE3_A/I Equivalent & Substitute Parts

Part Overview

The S3AHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates at 50 V DC reverse voltage with a 3 A average rectified current rating in a DO-214AB (SMC) package. The device is classified as Active product status with AEC-Q101 automotive qualification and ROHS3 compliance. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity when the primary part number becomes unavailable or when alternative sourcing is required.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	50	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max)	1.15	V @ 2.5 A
Reverse Recovery Time (trr)	2.5	µs
Current - Reverse Leakage @ Vr	10	µA @ 50 V
Capacitance @ Vr, F	60	pF @ 4V, 1MHz
Operating Temperature - Junction	-55 to 150	°C
Package / Case	DO-214AB, SMC	-
Mounting Type	Surface Mount	-
RoHS Status	ROHS3 Compliant	-

Substitute Part Grouping Explanation

Substitution eligibility for the S3AHE3_A/I is determined by the following critical parameters: Voltage - DC Reverse (Vr) maximum rating of 50 V, Current - Average Rectified (Io) of 3 A, package type DO-214AB (SMC), surface mount mounting configuration, and compliance certifications (ROHS3, REACH Unaffected, EAR99). All identified substitute parts maintain these core electrical and mechanical specifications. Variations in forward voltage (Vf), reverse recovery time (trr), and junction capacitance are permitted within the substitute group, provided the primary ratings remain equal or superior. All substitute parts are classified as Active product status with equivalent or enhanced environmental qualification.

Parameter Comparison

Parameter	S3AHE3_A/I (Main)	S3A-E3/57T	S3A-13-F	ES3A	ES3A-13-F
Manufacturer	Vishay General Semiconductor	Vishay General Semiconductor	Diodes Incorporated	Taiwan Semiconductor Corporation	Diodes Incorporated
Voltage - DC Reverse (Vr) (Max)	50 V	50 V	50 V	50 V	50 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max)	1.15 V @ 2.5 A	1.15 V @ 2.5 A	1.15 V @ 3 A	950 mV @ 3 A	900 mV @ 3 A
Reverse Recovery Time (trr)	2.5 µs	2.5 µs	Not specified	35 ns	25 ns
Current - Reverse Leakage @ Vr	10 µA @ 50 V	10 µA @ 50 V	10 µA @ 50 V	10 µA @ 50 V	10 µA @ 50 V
Capacitance @ Vr, F	60 pF @ 4V, 1MHz	60 pF @ 4V, 1MHz	40 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz
Operating Temperature - Junction	-55 to 150 °C	-55 to 150 °C	-65 to 150 °C	-55 to 150 °C	-55 to 150 °C
Package / Case	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
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All identified substitute parts maintain the core electrical specifications required for direct replacement of the S3AHE3_A/I: 50 V reverse voltage rating, 3 A average rectified current, and DO-214AB (SMC) surface mount package. All parts are Active product status with ROHS3 compliance and REACH Unaffected designation.

S3A-E3/57T (Vishay General Semiconductor) is a parametric equivalent offering identical electrical characteristics and operating temperature range. This part is recommended for applications requiring exact performance matching with the original specification.

S3A-13-F (Diodes Incorporated) provides equivalent core ratings with an extended lower operating temperature limit (-65°C versus -55°C). This part is suitable for applications requiring enhanced low-temperature performance.

ES3A (Taiwan Semiconductor Corporation) and ES3A-13-F (Diodes Incorporated) feature fast recovery technology with significantly reduced reverse recovery time (35 ns and 25 ns respectively, compared to 2.5 µs for the main part). These parts are suitable for applications where fast switching characteristics provide circuit performance benefits. ES3A-13-F offers the lowest forward voltage drop (900 mV @ 3 A) among the substitute group.

All substitute parts are available in Active status with equivalent compliance certifications. Selection should be based on specific application requirements regarding recovery speed, forward voltage characteristics, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can S3A-E3/57T be used as a direct replacement for S3AHE3_A/I?

A: Yes. S3A-E3/57T is a parametric equivalent with identical voltage rating (50 V), current rating (3 A), forward voltage (1.15 V @ 2.5 A), reverse recovery time (2.5 µs), reverse leakage current (10 µA @ 50 V), and operating temperature range (-55 to 150°C). The DO-214AB (SMC) package and surface mount configuration are identical.

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

A: The S3AHE3_A/I and S3A-E3/57T feature standard recovery with reverse recovery time of 2.5 µs. The ES3A and ES3A-13-F parts feature fast recovery with reverse recovery times of 35 ns and 25 ns respectively. Fast recovery diodes switch more rapidly, reducing switching losses in high-frequency applications. Standard recovery diodes are suitable for lower-frequency rectification applications.

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

A: All substitute parts use the DO-214AB (SMC) surface mount package. Packaging options differ: S3AHE3_A/I and S3A-E3/57T are supplied in Tape & Reel (TR) format. S3A-13-F is supplied in Tape & Reel (TR) format. ES3A packaging is not specified. ES3A-13-F is supplied in Cut Tape (CT) & Digi-Reel® format. Verify packaging compatibility with assembly equipment requirements.

Q: What is the temperature range difference between S3A-13-F and other parts?

A: S3A-13-F operates from -65°C to 150°C junction temperature, providing a 10°C lower minimum operating temperature compared to S3AHE3_A/I, S3A-E3/57T, ES3A, and ES3A-13-F, which operate from -55°C to 150°C. This extended range is beneficial for applications in extreme cold environments.

Q: How do forward voltage characteristics compare across the substitute group?

A: S3AHE3_A/I and S3A-E3/57T specify 1.15 V @ 2.5 A. S3A-13-F specifies 1.15 V @ 3 A. ES3A specifies 950 mV @ 3 A. ES3A-13-F specifies 900 mV @ 3 A. Lower forward voltage reduces power dissipation in rectification circuits. Verify forward voltage specifications match application requirements at the specified current levels.

Q: Are all parts RoHS and REACH compliant?

A: Yes. All parts in the substitute group are ROHS3 Compliant and REACH Unaffected. All parts carry EAR99 ECCN classification and 8541.10.0080 HTSUS code.

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