BYG22BHM3_A/I Avalanche Diode Equivalent & Substitute Parts

Part Overview

The BYG22BHM3_A/I is an avalanche rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, rated for 100 V DC reverse voltage and 2 A average rectified current in a surface mount DO-214AC (SMA) package. This component is classified as Active product status and carries automotive-grade qualification under AEC-Q101 standard. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or supply chain continuity while maintaining identical functional performance in circuit applications.

Key Parameters

Parameter	Value	Unit
Voltage - DC Reverse (Vr) (Max)	100	V
Current - Average Rectified (Io)	2	A
Voltage - Forward (Vf) (Max) @ If	1.1 @ 2 A	V
Reverse Recovery Time (trr)	25	ns
Current - Reverse Leakage @ Vr	1 @ 100 V	µA
Speed Classification	Fast Recovery ≤ 500ns, > 200mA (Io)	—
Package / Case	DO-214AC, SMA	—
Operating Temperature - Junction	-55 to 150	°C
Technology	Avalanche	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitute parts for the BYG22BHM3_A/I are determined by strict equivalence across the following critical parameters:

Voltage Rating: DC reverse voltage of 100 V maximum
Current Rating: Average rectified current of 2 A
Forward Voltage Drop: 1.1 V maximum at 2 A forward current
Recovery Characteristics: Fast recovery with reverse recovery time of 25 ns
Reverse Leakage: 1 µA maximum at 100 V reverse bias
Package Type: DO-214AC (SMA) surface mount configuration
Temperature Range: Junction operating range of -55°C to 150°C
Technology: Avalanche diode classification

All identified substitute parts maintain identical electrical performance specifications and mechanical compatibility. Substitution is valid when all parameters listed above match the main part specification without deviation.

Parameter Comparison

Parameter	BYG22BHM3_A/I	BYG22B-E3/TR	BYG22B-E3/TR3	BYG22BHE3_A/H
Voltage - DC Reverse (Vr) (Max)	100 V	100 V	100 V	100 V
Current - Average Rectified (Io)	2 A	2 A	2 A	2 A
Voltage - Forward (Vf) (Max) @ If	1.1 V @ 2 A	1.1 V @ 2 A	1.1 V @ 2 A	1.1 V @ 2 A
Reverse Recovery Time (trr)	25 ns	25 ns	25 ns	25 ns
Current - Reverse Leakage @ Vr	1 µA @ 100 V	1 µA @ 100 V	1 µA @ 100 V	1 µA @ 100 V
Speed Classification	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA	Fast Recovery ≤ 500ns, > 200mA
Package / Case	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA	DO-214AC, SMA
Operating Temperature - Junction	-55 to 150°C	-55 to 150°C	-55 to 150°C	-55 to 150°C
Technology	Avalanche	Avalanche	Avalanche	Avalanche
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Base Product Number	BYG22	BYG22	BYG22	BYG22
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

All three substitute parts—BYG22B-E3/TR, BYG22B-E3/TR3, and BYG22BHE3_A/H—are direct parametric equivalents to the BYG22BHM3_A/I and are suitable for interchangeable use in circuit designs requiring 100 V, 2 A avalanche rectifier diodes in DO-214AC surface mount packages.

BYG22BHM3_A/I and BYG22BHE3_A/H both carry automotive-grade qualification under AEC-Q101 standard. These parts are appropriate for applications requiring automotive compliance certification.

BYG22B-E3/TR and BYG22B-E3/TR3 maintain identical electrical specifications and RoHS3 compliance. These variants differ in packaging designation (TR versus TR3) but deliver equivalent performance in standard industrial and commercial applications.

All parts are manufactured by Vishay General Semiconductor - Diodes Division, carry Active product status, and comply with ROHS3 and REACH regulatory requirements. Selection among these equivalents may be based on inventory availability, packaging tape configuration requirements, or supply chain sourcing preferences.

Frequently Asked Questions (FAQ)

Q: Can BYG22B-E3/TR be used as a direct replacement for BYG22BHM3_A/I?

A: Yes. Both parts share identical electrical parameters: 100 V reverse voltage rating, 2 A average rectified current, 1.1 V forward voltage drop at 2 A, 25 ns reverse recovery time, and DO-214AC surface mount packaging. The primary difference is packaging designation (TR tape configuration). Electrical and mechanical compatibility is complete.

Q: What is the difference between BYG22B-E3/TR and BYG22B-E3/TR3?

A: Both parts are parametrically identical with matching electrical specifications and DO-214AC packaging. The designation difference (TR versus TR3) reflects tape reel configuration variants. Selection between these parts depends on tape reel specifications required by assembly equipment or supply chain sourcing.

Q: Are BYG22BHE3_A/H and BYG22BHM3_A/I suitable for automotive applications?

A: Yes. Both parts carry automotive-grade qualification under AEC-Q101 standard and are rated for junction temperatures from -55°C to 150°C. They are appropriate for automotive circuit applications requiring avalanche diode protection.

Q: Do all substitute parts meet RoHS and REACH compliance?

A: Yes. All four parts—BYG22BHM3_A/I, BYG22B-E3/TR, BYG22B-E3/TR3, and BYG22BHE3_A/H—are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Can these diodes be used interchangeably in PCB assembly?

A: Yes. All substitute parts use identical DO-214AC (SMA) surface mount packaging with matching pin configuration and footprint. PCB layout and assembly processes require no modification when substituting among these parts.

Q: What determines whether a part can substitute for the BYG22BHM3_A/I?

A: Substitution requires exact equivalence across voltage rating (100 V), current rating (2 A), forward voltage drop (1.1 V @ 2 A), reverse recovery time (25 ns), reverse leakage current (1 µA @ 100 V), package type (DO-214AC), and operating temperature range (-55°C to 150°C). All identified substitutes meet these criteria without exception.

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