S3B General Purpose Rectifier Diode 100V 3A DO-214AB Equivalent & Substitute Parts

Part Overview

The S3B is a general purpose rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 100V DC reverse voltage and 3A average rectified current in a surface mount DO-214AB (SMC) package. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements such as automotive qualification or alternative packaging formats.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	3	A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 3 A	V
Reverse Recovery Time (trr)	1.5	µs
Current - Reverse Leakage @ Vr	10	µA @ 100 V
Capacitance @ Vr, F	60	pF @ 4V, 1MHz
Mounting Type	Surface Mount	-
Package / Case	DO-214AB, SMC	-
Operating Temperature - Junction	-55 to 150	°C
Technology	Standard	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level (MSL)	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the S3B rectifier diode is determined by strict equivalence in the following electrical and mechanical parameters:

Primary Substitution Criteria:

Voltage - DC Reverse (Vr) (Max): 100V
Current - Average Rectified (Io): 3A
Package / Case: DO-214AB, SMC
Mounting Type: Surface Mount
Operating Temperature Range: -55°C to 150°C
RoHS3 Compliance

Secondary Considerations:

Voltage - Forward (Vf) at rated current
Reverse Recovery Time (trr) and recovery speed classification
Reverse Leakage Current
Capacitance characteristics
Automotive qualification (AEC-Q101) where applicable
Packaging format (Cut Tape, Tape & Reel, or bulk)

All identified substitute parts maintain the core electrical ratings and mechanical compatibility required for direct substitution in applications designed for the S3B. Variations in forward voltage, recovery time, and leakage current are within acceptable ranges for general purpose rectification applications.

Parameter Comparison

Parameter	S3B (Main)	ES3B-E3/57T	ACGRC302-HF	S3B-E3/57T	S3BHE3_A/H
Manufacturer	Taiwan Semiconductor Corporation	Vishay General Semiconductor - Diodes Division	Comchip Technology	Vishay General Semiconductor - Diodes Division	Vishay General Semiconductor - Diodes Division
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	3 A	3 A	3 A	3 A	3 A
Voltage - Forward (Vf) (Max) @ If	1.15 V @ 3 A	900 mV @ 3 A	1.15 V @ 3 A	1.15 V @ 2.5 A	1.15 V @ 2.5 A
Speed Classification	Standard Recovery >500ns	Fast Recovery ≤ 500ns	Standard Recovery >500ns	Standard Recovery >500ns	Standard Recovery >500ns
Reverse Recovery Time (trr)	1.5 µs	30 ns	Not specified	2.5 µs	2.5 µs
Current - Reverse Leakage @ Vr	10 µA @ 100 V	10 µA @ 100 V	5 µA @ 100 V	10 µA @ 100 V	10 µA @ 100 V
Capacitance @ Vr, F	60 pF @ 4V, 1MHz	45 pF @ 4V, 1MHz	20 pF @ 4V, 1MHz	60 pF @ 4V, 1MHz	60 pF @ 4V, 1MHz
Package / Case	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC	DO-214AB, SMC
Operating Temperature - Junction	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C	-55°C to 150°C
Automotive Grade / AEC-Q101	Standard	Standard	Automotive / AEC-Q101	Standard	Automotive / AEC-Q101
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active

Engineering Selection Recommendations

S3B (Taiwan Semiconductor Corporation) Primary choice for standard general purpose rectification applications. Maintains full electrical and thermal specifications across the operating temperature range. RoHS3 compliant with unlimited moisture sensitivity rating. Suitable for non-automotive applications requiring standard recovery characteristics.

ES3B-E3/57T (Vishay General Semiconductor - Diodes Division) Fast recovery variant with significantly reduced reverse recovery time (30 ns versus 1.5 µs). Lower forward voltage drop (900 mV @ 3A) reduces power dissipation. Supplied in Cut Tape packaging. Appropriate for applications requiring improved switching performance and reduced thermal load. Maintains RoHS3 compliance and unlimited MSL rating.

ACGRC302-HF (Comchip Technology) Automotive-qualified option with AEC-Q101 certification. Meets automotive industry reliability and qualification standards. Lower reverse leakage current (5 µA @ 100V) and reduced capacitance (20 pF @ 4V, 1MHz) compared to standard variants. Supplied in Tape & Reel format. Suitable for automotive and mission-critical applications requiring formal qualification documentation.

S3B-E3/57T (Vishay General Semiconductor - Diodes Division) Standard recovery variant from Vishay with identical forward voltage and leakage characteristics to the main S3B part. Reverse recovery time of 2.5 µs and capacitance of 60 pF match the original specification. Supplied in Tape & Reel packaging with highest inventory availability (12,400 pcs). Direct functional equivalent for non-automotive applications.

S3BHE3_A/H (Vishay General Semiconductor - Diodes Division) Automotive-qualified variant with AEC-Q101 certification. Identical electrical specifications to S3B-E3/57T with automotive-grade reliability. Supplied in Tape & Reel format. Appropriate for automotive applications requiring qualified component documentation and traceability.

Frequently Asked Questions (FAQ)

Q: Can ES3B-E3/57T be used as a direct replacement for S3B in all applications?

A: ES3B-E3/57T is electrically compatible for applications where fast recovery characteristics are acceptable or beneficial. The 30 ns reverse recovery time and 900 mV forward voltage drop differ from the S3B specification. Applications sensitive to switching speed or power dissipation characteristics should evaluate ES3B-E3/57T performance requirements independently.

Q: What is the difference between standard and automotive-qualified variants?

A: ACGRC302-HF and S3BHE3_A/H carry AEC-Q101 automotive qualification, indicating compliance with automotive industry reliability, testing, and traceability standards. These variants are required for automotive applications and mission-critical systems where formal qualification documentation is mandatory. Standard variants (S3B, S3B-E3/57T) are suitable for general industrial and consumer applications.

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

A: No. S3B is supplied without specified packaging format. ES3B-E3/57T is supplied in Cut Tape (CT) format. ACGRC302-HF, S3B-E3/57T, and S3BHE3_A/H are supplied in Tape & Reel (TR) format. Packaging format selection depends on manufacturing process requirements and component handling equipment compatibility.

Q: What are the key electrical differences between substitute parts?

A: Forward voltage ranges from 900 mV (ES3B-E3/57T) to 1.15 V (S3B, ACGRC302-HF, S3B-E3/57T, S3BHE3_A/H). Reverse recovery time varies from 30 ns (ES3B-E3/57T) to 2.5 µs (S3B-E3/57T, S3BHE3_A/H). Reverse leakage current ranges from 5 µA (ACGRC302-HF) to 10 µA (other variants). Capacitance ranges from 20 pF (ACGRC302-HF) to 60 pF (S3B, S3B-E3/57T, S3BHE3_A/H). All variants maintain 100V reverse voltage and 3A current ratings.

Q: Which substitute part has the lowest power dissipation?

A: ES3B-E3/57T exhibits the lowest forward voltage drop at 900 mV @ 3A, resulting in reduced power dissipation compared to other variants rated at 1.15 V @ 3A or 1.15 V @ 2.5A.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts (ES3B-E3/57T, ACGRC302-HF, S3B-E3/57T, S3BHE3_A/H) are RoHS3 compliant with unlimited moisture sensitivity level (MSL 1).

Q: What inventory levels are available for each substitute part?

A: S3B: 858 pcs. ES3B-E3/57T: 5,730 pcs. ACGRC302-HF: 3,418 pcs. S3B-E3/57T: 12,400 pcs. S3BHE3_A/H: 1,351 pcs. S3B-E3/57T maintains the highest inventory availability.

Q: Can substitute parts be mixed within a single assembly?

A: All substitute parts are electrically and mechanically compatible within the specified parameter ranges. Mixed usage is permissible from a functional standpoint. Design documentation and traceability requirements may impose restrictions on mixed component sourcing depending on application classification and quality standards.

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