SMBG26A-E3/5B Equivalent & Substitute Parts

Part Overview

The SMBG26A-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 in surface mount configurations. The part operates across a temperature range of -55°C to 150°C and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1). The SMBG26A-E3/5B is currently in active production status with 794 units in stock.

Equivalent and substitute parts are identified when they maintain identical or functionally equivalent electrical parameters while accommodating different packaging, supplier availability, or manufacturing sourcing requirements.

Substiute Parts

SMBG26A-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 904SMBG26A-E3/5B Datasheet

Current PartRFQ

SMBJ26A-TR

STMicroelectronicsIn Stock: 7108SMBJ26A-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBG26A-E3/5B is determined by strict equivalence of the following electrical and mechanical parameters:

• Voltage - Reverse Standoff (Typ): 26V
• Voltage - Breakdown (Min): 28.9V
• Voltage - Clamping (Max) @ Ipp: 42.1V
• Current - Peak Pulse (10/1000µs): ≥14.3A
• Power - Peak Pulse: 600W
• Operating Temperature Range: -55°C to 150°C (TJ)
• Mounting Type: Surface Mount
• Package / Case: DO-215AA or DO-214AA (SMB variants)
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SMBJ26A-TR from STMicroelectronics meets all substitution criteria. While the package designation differs slightly (DO-214AA vs. DO-215AA), both are SMB Gull Wing surface mount packages with identical electrical performance and mechanical compatibility. The peak pulse current of the SMBJ26A-TR (14.9A) exceeds the minimum requirement of 14.3A, providing equivalent or superior performance.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBG26A-E3/5B and SMBJ26A-TR are active production components with ROHS3 compliance and unlimited moisture sensitivity ratings. Selection between these parts should be based on:

• Supplier availability and lead time requirements
• Inventory status (SMBG26A-E3/5B: 794 units; SMBJ26A-TR: 7039 units)
• Packaging preference (Tape & Reel vs. Cut Tape & Digi-Reel)
• Manufacturer qualification requirements for your application

Both parts satisfy identical electrical specifications and operating conditions. The SMBJ26A-TR provides higher peak pulse current (14.9A vs. 14.3A), offering additional margin in transient suppression applications.

Frequently Asked Questions (FAQ)

Q: Can SMBJ26A-TR directly replace SMBG26A-E3/5B in existing designs?

A: Yes. Both parts are unidirectional TVS diodes with identical voltage ratings (26V standoff, 28.9V breakdown, 42.1V clamping) and equivalent power dissipation (600W peak pulse). The SMB package variants (DO-215AA and DO-214AA) are mechanically and electrically compatible for surface mount applications.

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

A: Both designations refer to SMB Gull Wing surface mount packages. DO-215AA and DO-214AA are functionally equivalent for this TVS diode application with identical lead spacing and mounting footprints.

Q: Are there compliance differences between these parts?

A: No. Both the SMBG26A-E3/5B and SMBJ26A-TR are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Both are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Q: Does the higher peak pulse current of SMBJ26A-TR (14.9A vs. 14.3A) affect circuit design?

A: No negative impact. The higher peak pulse current of the SMBJ26A-TR provides additional transient suppression capability and margin. Circuit designs specified for 14.3A minimum will operate safely with the 14.9A rated part.

Q: What packaging options are available for these parts?

A: SMBG26A-E3/5B is supplied in Tape & Reel (TR) format. SMBJ26A-TR is available in Cut Tape (CT) and Digi-Reel® packaging. Select based on your assembly process requirements and volume needs.