SMCG28A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCG28A-M3/9AT 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 protection applications. The device is currently in active production status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or packaging preferences while maintaining identical functional performance.

Substiute Parts

SMCG28A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 1040SMCG28A-M3/9AT Datasheet

Current PartRFQ

SMCG28A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 1555SMCG28A-E3/57T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMCG28A-M3/9AT is permissible with parts that maintain identical electrical performance across all critical parameters. The substitution criteria are based strictly on the following key parameters:

• Voltage - Reverse Standoff (Typ): 28V
• Voltage - Breakdown (Min): 31.1V
• Voltage - Clamping (Max) @ Ipp: 45.4V
• Current - Peak Pulse (10/1000µs): 33A
• Power - Peak Pulse: 1500W
• Package / Case: DO-215AB, SMC Gull Wing
• Mounting Type: Surface Mount
• Unidirectional Channels: 1

The identified substitute part SMCG28A-E3/57T meets all these criteria and is therefore functionally equivalent for direct replacement in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both SMCG28A-M3/9AT and SMCG28A-E3/57T are active production components from Vishay General Semiconductor - Diodes Division. Both parts are RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and use. The parts are functionally interchangeable in all circuit applications requiring 28V TVS diode protection with 33A peak pulse current capability and 45.4V maximum clamping voltage. Selection between these parts may be based on packaging tape reel specifications (M3/9AT versus E3/57T designations) or inventory availability without compromising circuit performance or compliance status.

Frequently Asked Questions (FAQ)

Q: Can SMCG28A-E3/57T be used as a direct replacement for SMCG28A-M3/9AT?

A: Yes. Both parts are identical in all electrical specifications, including reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, and power dissipation. Both use the same DO-215AB package with SMC gull wing configuration for surface-mount assembly.

Q: What do the suffixes M3/9AT and E3/57T represent?

A: These suffixes denote different packaging tape reel specifications from the manufacturer. The electrical and mechanical characteristics of the diode itself remain identical between these variants.

Q: Are there any temperature or compliance differences between these parts?

A: No. Both parts operate across the identical temperature range of -55°C to 150°C (TJ) and maintain the same RoHS3 compliance and REACH unaffected status.

Q: Can these parts be used interchangeably on the same PCB assembly?

A: Yes. Both parts have identical package dimensions (DO-215AB, SMC gull wing) and mounting type (surface mount), allowing direct substitution without PCB layout modifications.

Q: What is the moisture sensitivity level for these components?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.