S1BHE3_A/I Equivalent & Substitute Parts

Part Overview

The S1BHE3_A/I is a general-purpose rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 100 V DC reverse voltage and 1 A average rectified current in a surface mount DO-214AC (SMA) package. This part is classified as Active product status and carries automotive-grade qualification under AEC-Q101. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design continuity across multiple manufacturers while maintaining electrical and mechanical compatibility within the specified parameter ranges.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	1	A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 1 A	V
Reverse Recovery Time (trr)	1.8	µs
Current - Reverse Leakage @ Vr	1	µA @ 100 V
Package / Case	DO-214AC, SMA	—
Mounting Type	Surface Mount	—
Operating Temperature - Junction	-55 to 150	°C
Grade	Automotive	—
Qualification	AEC-Q101	—
RoHS Status	ROHS3 Compliant	—

Substitute Part Grouping Explanation

Substitute parts for the S1BHE3_A/I are grouped into two categories based on substitution criteria:

Parametric Equivalents maintain identical or functionally equivalent electrical specifications across all critical parameters: 100 V reverse voltage rating, 1 A average rectified current, DO-214AC (SMA) surface mount package, and operating temperature range of -55°C to 150°C. These parts differ only in packaging format (Tape & Reel versus Cut Tape) or minor variations in non-critical parameters such as capacitance or reverse recovery time that do not affect circuit performance within the specified operating conditions.

Manufacturer Recommended Alternatives are parts from different manufacturers that meet the core electrical requirements (100 V, 1 A, DO-214AC package) but may exhibit variations in secondary parameters such as forward voltage drop, reverse recovery time, reverse leakage current, or operating temperature range. These parts are suitable for applications where the primary electrical ratings are the controlling factors and minor performance variations are acceptable.

The key parameters determining substitutability are:

Voltage - DC Reverse (Vr) (Max): 100 V
Current - Average Rectified (Io): 1 A
Package / Case: DO-214AC, SMA
Mounting Type: Surface Mount
Operating Temperature Range: -55°C minimum to 150°C minimum maximum

Parameter Comparison

Manufacturer Part Number	Manufacturer	Vr (Max) [V]	Io [A]	Vf (Max) @ If [V]	trr [µs]	Ir @ Vr [µA]	Package	Temp Range [°C]	Grade	Product Status
S1BHE3_A/I	Vishay	100	1	1.1 @ 1 A	1.8	1 @ 100 V	DO-214AC (SMA)	-55 to 150	Automotive	Active
S1B-E3/5AT	Vishay	100	1	1.1 @ 1 A	1.8	1 @ 100 V	DO-214AC (SMA)	-55 to 150	—	Active
S1B-E3/61T	Vishay	100	1	1.1 @ 1 A	1.8	1 @ 100 V	DO-214AC (SMA)	-55 to 150	—	Active
S1BHE3_A/H	Vishay	100	1	1.1 @ 1 A	1.8	1 @ 100 V	DO-214AC (SMA)	-55 to 150	Automotive	Active
EGF1B	Fairchild Semiconductor	100	1	1.0 @ 1 A	0.05	10 @ 100 V	DO-214AC (SMA)	-65 to 175	—	Active
ES1B-13-F	Diodes Incorporated	100	1	0.92 @ 1 A	0.025	5 @ 100 V	DO-214AC (SMA)	-55 to 150	—	Active
ES1B-LTP	Micro Commercial Co	100	1	0.95 @ 1 A	0.035	5 @ 100 V	DO-214AC (SMA)	-65 to 175	—	Not For New Designs
RGF1B	Fairchild Semiconductor	100	1	1.3 @ 1 A	0.15	5 @ 100 V	DO-214AC (SMA)	-65 to 175	—	Active
RS1B-13-F	Diodes Incorporated	100	1	1.3 @ 1 A	0.15	5 @ 100 V	DO-214AC (SMA)	-65 to 150	—	Active
ACGRA4002-HF	Comchip Technology	100	1	1.1 @ 1 A	2.5	5 @ 100 V	DO-214AC (SMA)	-55 to 150	Automotive	Active
GS1B_R1_00001	Panjit International Inc.	100	1	1.1 @ 1 A	—	1 @ 100 V	DO-214AC (SMA)	-55 to 150	—	Active

Engineering Selection Recommendations

Vishay S1B Series (Parametric Equivalents)

The S1B-E3/5AT, S1B-E3/61T, and S1BHE3_A/H parts are direct parametric equivalents to the S1BHE3_A/I. All four Vishay parts share identical electrical specifications and operating temperature range. Selection among these variants is determined by packaging format requirements: S1BHE3_A/I and S1BHE3_A/H are available in Tape & Reel and Cut Tape formats respectively, while S1B-E3/5AT and S1B-E3/61T offer alternative packaging configurations. The S1BHE3_A/H variant carries the same automotive-grade qualification and AEC-Q101 certification as the primary part. These substitutes are suitable for direct replacement in all applications where the S1BHE3_A/I is specified.

Automotive-Grade Alternatives

The ACGRA4002-HF from Comchip Technology is an automotive-grade, AEC-Q101 qualified alternative that maintains the 100 V / 1 A electrical ratings and -55°C to 150°C operating temperature range. This part exhibits a slightly higher reverse recovery time (2.5 µs versus 1.8 µs) and lower reverse leakage current (5 µA versus 1 µA), which are acceptable variations for general-purpose rectification applications. This part is suitable for automotive applications requiring AEC-Q101 compliance.

Fast Recovery Alternatives

The EGF1B, ES1B-13-F, ES1B-LTP, RS1B-13-F, and RGF1B parts feature fast recovery characteristics (reverse recovery time ≤ 500 ns) compared to the standard recovery profile of the S1BHE3_A/I (1.8 µs). These parts are suitable for applications where reduced reverse recovery time provides performance benefits. The ES1B-13-F and RS1B-13-F from Diodes Incorporated offer the lowest reverse recovery times (25 ns and 150 ns respectively) and are Active product status. The ES1B-LTP is designated as Not For New Designs and should not be selected for new circuit development.

Product Status Considerations

All recommended substitutes maintain Active product status except ES1B-LTP, which is classified as Not For New Designs. For new designs, selection should be limited to parts with Active status: S1B-E3/5AT, S1B-E3/61T, S1BHE3_A/H, EGF1B, ES1B-13-F, RGF1B, RS1B-13-F, ACGRA4002-HF, and GS1B_R1_00001.

Compliance and Certification

All substitute parts maintain ROHS3 compliance and EAR99 export classification consistent with the primary part. Automotive applications requiring AEC-Q101 qualification should be limited to S1BHE3_A/H and ACGRA4002-HF.

Frequently Asked Questions (FAQ)

Q: Can S1B-E3/5AT be used as a direct replacement for S1BHE3_A/I?

A: Yes. The S1B-E3/5AT is a parametric equivalent with identical voltage rating (100 V), current rating (1 A), forward voltage drop (1.1 V @ 1 A), reverse recovery time (1.8 µs), and operating temperature range (-55°C to 150°C). The primary difference is packaging format (Tape & Reel for S1B-E3/5AT versus Tape & Reel for S1BHE3_A/I). Both parts use the DO-214AC (SMA) surface mount package and are electrically interchangeable.

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

A: The S1BHE3_A/I exhibits standard recovery characteristics with a reverse recovery time of 1.8 µs. Fast recovery alternatives such as ES1B-13-F (25 ns), EGF1B (50 ns), and RS1B-13-F (150 ns) have significantly lower reverse recovery times. Fast recovery diodes reduce switching losses and are beneficial in high-frequency switching applications. Standard recovery diodes are suitable for line-frequency and low-frequency rectification applications.

Q: Is the ACGRA4002-HF suitable for automotive applications?

A: Yes. The ACGRA4002-HF carries automotive-grade classification and AEC-Q101 qualification, matching the automotive credentials of the S1BHE3_A/I. Both parts are rated for -55°C to 150°C operating temperature and maintain ROHS3 compliance. The ACGRA4002-HF is suitable for automotive circuit applications requiring AEC-Q101 certified components.

Q: Why does ES1B-LTP show "Not For New Designs" status?

A: The ES1B-LTP is designated as Not For New Designs by the manufacturer. This classification indicates that while the part remains available for existing applications and legacy designs, it should not be selected for new circuit development. For new designs, select from parts with Active product status such as ES1B-13-F, which offers superior fast recovery characteristics (25 ns reverse recovery time).

Q: Can I substitute a fast recovery diode for the standard recovery S1BHE3_A/I?

A: Fast recovery diodes such as ES1B-13-F, EGF1B, and RS1B-13-F meet the core electrical requirements (100 V, 1 A, DO-214AC package) and are electrically compatible. However, the selection depends on circuit requirements. Fast recovery diodes are beneficial in switching applications where reduced reverse recovery time minimizes switching losses. In line-frequency rectification applications, the performance difference is negligible, and standard recovery parts such as S1BHE3_A/I are appropriate.

Q: What packaging options are available for Vishay S1B series equivalents?

A: Vishay offers the S1B series in multiple packaging formats: S1BHE3_A/I and S1BHE3_A/H are available in Tape & Reel and Cut Tape formats respectively. S1B-E3/5AT is supplied in Tape & Reel format with high inventory availability (56,876 pcs). S1B-E3/61T is supplied in Cut Tape & Digi-Reel® format. Selection among these variants is based on procurement and assembly requirements rather than electrical performance.

Q: Are all substitute parts RoHS compliant?

A: All listed substitute parts maintain ROHS3 compliance consistent with the primary S1BHE3_A/I part. This compliance status applies to S1B-E3/5AT, S1B-E3/61T, S1BHE3_A/H, ES1B-13-F, ES1B-LTP, RS1B-13-F, ACGRA4002-HF, and GS1B_R1_00001. Fairchild Semiconductor parts (EGF1B and RGF1B) do not list RoHS status in the provided specifications.

Q: What is the difference between DO-214AC and SMA package designations?

A: DO-214AC and SMA refer to the same surface mount package. DO-214AC is the JEDEC standard designation, while SMA is the industry common abbreviation for this package type. All listed substitute parts use this identical package, ensuring mechanical and electrical compatibility in surface mount applications.

Q: Can I use RGF1B as a substitute despite its higher forward voltage drop (1.3 V)?

A: The RGF1B meets the core electrical requirements (100 V, 1 A, DO-214AC package) and is electrically compatible. The higher forward voltage drop (1.3 V versus 1.1 V) results in increased power dissipation during conduction. In applications where forward voltage drop is a critical design parameter, this difference may be significant. In general-purpose rectification applications with adequate thermal design margin, the RGF1B is suitable.

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