SMBG22A-E3/5B Equivalent & Substitute Parts

Part Overview

The SMBG22A-E3/5B is an active Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This unidirectional zener diode is designed for general-purpose transient voltage suppression applications, featuring a 22V reverse standoff voltage and 35.5V maximum clamping voltage. The device is housed in a DO-215AA (SMB Gull Wing) surface mount package and is ROHS3 compliant with unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching electrical performance parameters and package compatibility to ensure functional interchangeability in circuit protection applications.

Substiute Parts

SMBG22A-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 925SMBG22A-E3/5B Datasheet

Current PartRFQ

SMBJ22A-TR

STMicroelectronicsIn Stock: 5498SMBJ22A-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBG22A-E3/5B are qualified based on the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 22V
• Voltage - Breakdown (Min): 24.4V
• Voltage - Clamping (Max) @ Ipp: 35.5V
• Current - Peak Pulse (10/1000µs): ≥16.9A
• Power - Peak Pulse: 600W
• Operating Temperature Range: -55°C to 150°C (TJ)
• Package / Case: DO-215AA or DO-214AA (SMB compatible)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant

The SMBJ22A-TR from STMicroelectronics meets all substitution criteria with equivalent voltage ratings, higher peak pulse current (17.7A), and compatible SMB surface mount packaging (DO-214AA).

Parameter Comparison

Engineering Selection Recommendations

The SMBJ22A-TR is a qualified substitute for the SMBG22A-E3/5B based on electrical parameter equivalence and compliance status. Both devices are ROHS3 compliant, REACH unaffected, and carry identical voltage ratings and operating temperature specifications. The SMBJ22A-TR provides higher peak pulse current capability (17.7A versus 16.9A), which offers improved transient suppression margin. Both devices feature unlimited moisture sensitivity rating (MSL 1) and are classified under ECCN EAR99 with matching HTSUS codes. Package compatibility is maintained through SMB surface mount form factors (DO-215AA and DO-214AA), which are mechanically and electrically interchangeable in standard PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ22A-TR replace the SMBG22A-E3/5B in existing designs?

A: Yes. Both devices share identical voltage ratings (22V standoff, 24.4V breakdown, 35.5V clamping), matching power dissipation (600W peak pulse), and equivalent operating temperature ranges (-55°C to 150°C). The SMBJ22A-TR provides higher peak pulse current (17.7A), which is compatible with applications designed for the 16.9A specification.

Q: Are the DO-215AA and DO-214AA packages mechanically compatible?

A: Both packages are SMB surface mount form factors with compatible PCB footprints. DO-215AA (Gull Wing) and DO-214AA (standard SMB) are functionally interchangeable in standard surface mount assembly processes.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the SMBG22A-E3/5B and SMBJ22A-TR are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.

Q: What is the primary difference between these two TVS diodes?

A: The primary difference is the peak pulse current rating: SMBG22A-E3/5B is rated at 16.9A, while SMBJ22A-TR is rated at 17.7A. All other electrical and compliance parameters are identical.

Q: Are there any thermal considerations when substituting these parts?

A: No. Both devices operate across the same temperature range (-55°C to 150°C junction temperature) and share identical power dissipation specifications (600W peak pulse).