BYG22BHE3_A/I Avalanche Diode Equivalent & Substitute Parts

Part Overview

The BYG22BHE3_A/I is an avalanche rectifier diode manufactured by Vishay General Semiconductor - Diodes Division, classified as an active product. This surface mount diode operates at 100 V DC reverse voltage with a 2 A average rectified current rating and is packaged in the DO-214AC (SMA) form factor. The device is qualified to AEC-Q101 automotive standards and maintains ROHS3 compliance. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same base product series, enabling direct replacement in circuit applications without design modification.

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	V @ A
Reverse Recovery Time (trr)	25	ns
Current - Reverse Leakage @ Vr	1 @ 100	µA @ V
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

Substitution of the BYG22BHE3_A/I is determined by strict equivalence across the following parameters:

Voltage Rating: 100 V DC reverse voltage (Vr)
Current Rating: 2 A average rectified current (Io)
Forward Voltage Drop: 1.1 V maximum at 2 A
Reverse Recovery Time: 25 ns
Reverse Leakage Current: 1 µA at 100 V
Package Type: DO-214AC (SMA) surface mount
Technology: Avalanche diode classification
Operating Temperature Range: -55°C to 150°C junction temperature
Base Product Series: BYG22

All identified substitute parts maintain identical electrical performance characteristics and mechanical compatibility. Substitution is valid across different packaging designations (TR, TR3, and tape reel variants) within the same base product family, as these designations reflect supply chain and reel configuration differences rather than functional or electrical variations.

Parameter Comparison

Parameter	BYG22BHE3_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 substitute parts listed maintain full electrical and mechanical equivalence to the BYG22BHE3_A/I. Selection among available substitutes is based on inventory availability and supply chain considerations:

BYG22BHE3_A/I (1,010 pcs available): Original specification with automotive AEC-Q101 qualification. Active product status.

BYG22B-E3/TR (1,900 pcs available): Parametric equivalent with identical electrical characteristics. Active product status. Tape & Reel packaging variant.

BYG22B-E3/TR3 (8,309 pcs available): Parametric equivalent with identical electrical characteristics. Active product status. Tape & Reel packaging variant with highest inventory availability.

BYG22BHE3_A/H (104,300 pcs available): Parametric equivalent with automotive AEC-Q101 qualification matching the original part. Active product status. Highest inventory availability. Tape & Reel packaging variant.

All parts are manufactured by Vishay General Semiconductor - Diodes Division and comply with ROHS3, REACH, and MSL 1 requirements. No electrical performance degradation occurs with any listed substitute. Selection should prioritize availability and supply chain lead time requirements.

Frequently Asked Questions (FAQ)

Q: Can BYG22B-E3/TR be used as a direct replacement for BYG22BHE3_A/I?

A: Yes. Both parts maintain identical electrical parameters including 100 V reverse voltage, 2 A current rating, 1.1 V forward voltage drop, and 25 ns reverse recovery time. Both are packaged in DO-214AC (SMA) surface mount form factor and operate across the same temperature range. The difference in part number designation reflects packaging reel configuration only.

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

A: Both parts are electrically and mechanically identical. The TR and TR3 designations indicate different tape and reel packaging configurations used for automated assembly equipment compatibility. Electrical performance and PCB mounting are unchanged.

Q: Does BYG22BHE3_A/H include automotive qualification?

A: Yes. BYG22BHE3_A/H carries AEC-Q101 automotive qualification, matching the original BYG22BHE3_A/I specification. All electrical and thermal parameters are identical.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original part's regulatory requirements.

Q: Can these diodes be used in high-temperature applications?

A: Yes. All parts operate across the junction temperature range of -55°C to 150°C, supporting both industrial and automotive thermal environments.

Q: What is the reverse recovery time specification, and why is it important?

A: Reverse recovery time (trr) is specified at 25 ns for all parts. This parameter defines the time required for the diode to transition from forward conduction to reverse blocking state. The fast recovery classification (≤ 500 ns) indicates suitability for switching applications with switching frequencies up to several megahertz.

Q: Is moisture sensitivity a concern for these surface mount diodes?

A: No. All parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions. Standard PCB assembly and storage practices apply without special moisture control requirements.

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