SMBG28A-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBG28A-M3/52 is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This surface-mount component is designed for general-purpose transient voltage suppression applications, featuring a 28V reverse standoff voltage and 45.4V maximum clamping voltage. The part is currently active in production and RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory availability, lead time considerations, or design flexibility needs.

Substiute Parts

SMBG28A-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1027SMBG28A-M3/52 Datasheet

Current PartRFQ

SMBG28A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 2208SMBG28A-E3/52 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBG28A-M3/52 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 28V (nominal)
• Voltage - Breakdown (Min): 31.1V
• Voltage - Clamping (Max) @ Ipp: 45.4V
• Current - Peak Pulse (10/1000µs): 13.2A
• Power - Peak Pulse: 600W
• Package / Case: DO-215AA, SMB Gull Wing
• Mounting Type: Surface Mount
• Unidirectional Channels: 1
• Series: TransZorb®

The SMBG28A-E3/52 meets all substitution criteria, maintaining identical electrical specifications and mechanical compatibility. Both parts are manufactured by Vishay General Semiconductor - Diodes Division and share the same base product number (SMBG28), confirming functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both SMBG28A-M3/52 and SMBG28A-E3/52 are active production parts with identical electrical and mechanical specifications. Selection between these parts should be based on:

• Inventory availability and lead time requirements
• Operating temperature range requirements: The SMBG28A-M3/52 supports -65°C to 175°C, while the SMBG28A-E3/52 supports -55°C to 150°C. Applications requiring operation below -55°C or above 150°C must use the SMBG28A-M3/52.
• Both parts maintain ROHS3 compliance and REACH unaffected status, suitable for regulated applications.
• Moisture sensitivity level 1 (unlimited) applies to both parts, indicating no special storage or handling requirements.

Frequently Asked Questions (FAQ)

Q: Can SMBG28A-E3/52 be used as a direct replacement for SMBG28A-M3/52?

A: The SMBG28A-E3/52 is electrically and mechanically equivalent for applications operating within -55°C to 150°C. For applications requiring the extended lower temperature range (-65°C), the SMBG28A-M3/52 must be used.

Q: What is the difference between the M3 and E3 suffixes?

A: The suffix designates the tape and reel configuration and manufacturing date code. Both parts are functionally identical TransZorb® TVS diodes with the same electrical performance.

Q: Are both parts suitable for surface-mount assembly?

A: Yes. Both parts use the DO-215AA (SMB Gull Wing) package and are designed for surface-mount applications with identical footprints and reflow profiles.

Q: Do these parts require special handling or storage?

A: No. Both parts have Moisture Sensitivity Level 1 (Unlimited), indicating standard handling and storage conditions are acceptable.

Q: Are there compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8541.10.0080).