SMBG10A-E3/5B Equivalent & Substitute Parts

Part Overview

The SMBG10A-E3/5B is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This component is part of the TransZorb® series and is designed for general-purpose transient voltage suppression applications. The device features a 10V reverse standoff voltage with a 17V maximum clamping voltage and 35.3A peak pulse current capability in a surface-mount DO-215AA (SMB Gull Wing) package. The product maintains Active status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain considerations, or packaging format preferences while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value	Unit
Voltage - Reverse Standoff (Typ)	10	V
Voltage - Breakdown (Min)	11.1	V
Voltage - Clamping (Max) @ Ipp	17	V
Current - Peak Pulse (10/1000µs)	35.3	A
Power - Peak Pulse	600	W
Operating Temperature Range	-55 to 150	°C (TJ)
Mounting Type	Surface Mount	—
Package / Case	DO-215AA, SMB Gull Wing	—
Type	Zener	—
Unidirectional Channels	1	—

Substitute Part Grouping Explanation

Substitute parts for the SMBG10A-E3/5B are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Matching Parameters:

Voltage - Reverse Standoff (Typ): 10V
Voltage - Breakdown (Min): 11.1V
Voltage - Clamping (Max) @ Ipp: 17V
Current - Peak Pulse (10/1000µs): ≥35.3A
Power - Peak Pulse: 600W
Operating Temperature Range: -55°C to 150°C (TJ)
Mounting Type: Surface Mount
Unidirectional Channels: 1
Type: Zener

Package Compatibility: The SMBG10A-E3/5B uses DO-215AA (SMB Gull Wing) packaging. Substitute parts must use compatible SMB-family packages (DO-214AA, DO-215AA) to ensure PCB footprint compatibility and mechanical fit.

The SMBJ10A-TR from STMicroelectronics meets all electrical parameter requirements and uses the DO-214AA (SMB) package, which is mechanically compatible with the original DO-215AA footprint for surface-mount applications.

Parameter Comparison

Parameter	SMBG10A-E3/5B (Vishay)	SMBJ10A-TR (STMicroelectronics)	Match Status
Voltage - Reverse Standoff (Typ)	10V	10V	Matched
Voltage - Breakdown (Min)	11.1V	11.1V	Matched
Voltage - Clamping (Max) @ Ipp	17V	17V	Matched
Current - Peak Pulse (10/1000µs)	35.3A	37A	Substitute Exceeds
Power - Peak Pulse	600W	600W	Matched
Operating Temperature Range	-55 to 150°C (TJ)	-55 to 150°C (TJ)	Matched
Mounting Type	Surface Mount	Surface Mount	Matched
Package / Case	DO-215AA, SMB Gull Wing	DO-214AA, SMB	Compatible
Type	Zener	Zener	Matched
Unidirectional Channels	1	1	Matched
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Matched
REACH Status	REACH Unaffected	REACH Unaffected	Matched

Engineering Selection Recommendations

Both the SMBG10A-E3/5B and SMBJ10A-TR maintain Active product status with full regulatory compliance. The SMBG10A-E3/5B is manufactured by Vishay General Semiconductor and supplied in Tape & Reel (TR) packaging format. The SMBJ10A-TR is manufactured by STMicroelectronics and supplied in Cut Tape (CT) and Digi-Reel® packaging formats.

Selection between these parts should be based on:

Packaging Format Requirements: The original part uses Tape & Reel (TR) format, while the substitute uses Cut Tape (CT) and Digi-Reel® formats. Verify packaging compatibility with assembly processes.
Inventory and Lead Time: The SMBJ10A-TR currently has higher inventory availability (12,600 pcs) compared to the SMBG10A-E3/5B (978 pcs), which may influence supply chain decisions.
Regulatory Compliance: Both parts are RoHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications.
Performance Margin: The SMBJ10A-TR provides a 1.7A higher peak pulse current rating (37A vs. 35.3A), offering additional performance margin within the same 600W power dissipation envelope.

Frequently Asked Questions (FAQ)

Q: Can the SMBJ10A-TR directly replace the SMBG10A-E3/5B on existing PCBs?

A: Yes. Both devices use compatible SMB-family packages (DO-215AA and DO-214AA respectively). The footprints are mechanically compatible for surface-mount assembly. Electrical parameters are matched or exceeded by the substitute part.

Q: What is the difference between DO-215AA and DO-214AA packages?

A: Both are SMB (Surface Mount) package variants with identical lead spacing and PCB footprint dimensions. DO-215AA (Gull Wing) and DO-214AA (SMB) are mechanically interchangeable for standard surface-mount applications.

Q: Are there any electrical performance differences between these parts?

A: The SMBJ10A-TR provides 37A peak pulse current versus 35.3A for the SMBG10A-E3/5B. All other electrical parameters—reverse standoff voltage, breakdown voltage, clamping voltage, and power dissipation—are identical. The higher current rating of the substitute part does not create incompatibility.

Q: Do packaging format differences (Tape & Reel vs. Cut Tape) affect electrical performance?

A: No. Packaging format affects only handling, storage, and assembly logistics. Electrical and mechanical specifications remain unchanged regardless of packaging format.

Q: Are both parts suitable for the same applications?

A: Yes. Both parts are rated for general-purpose transient voltage suppression with identical voltage ratings, temperature ranges, and compliance certifications. Application suitability is determined by the matched electrical parameters.

Q: What compliance certifications apply to both parts?

A: Both the SMBG10A-E3/5B and SMBJ10A-TR are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080.

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