SMCG22A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCG22A-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. Identifying equivalent and substitute parts is necessary to ensure supply chain flexibility, optimize procurement timelines, and maintain design continuity when the primary part number becomes unavailable or when alternative packaging configurations are required.

Substiute Parts

SMCG22A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 938SMCG22A-M3/9AT Datasheet

Current PartRFQ

SMCG22A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 2750SMCG22A-E3/57T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCG22A-M3/9AT are identified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitution eligibility:

Critical Electrical Parameters:

• Voltage - Reverse Standoff (Typ): 22V
• Voltage - Breakdown (Min): 24.4V
• Voltage - Clamping (Max) @ Ipp: 35.5V
• Current - Peak Pulse (10/1000µs): 42.3A
• Power - Peak Pulse: 1500W

Critical Mechanical Parameters:

• Package / Case: DO-215AB, SMC Gull Wing
• Mounting Type: Surface Mount
• Unidirectional Channels: 1

Compliance & Environmental Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1
• Operating Temperature Range: -55°C to 150°C (TJ)

Parts meeting all these criteria are classified as direct substitutes. Variations in packaging tape reel configurations (such as different reel sizes or tape specifications) do not affect electrical or mechanical compatibility and are therefore acceptable substitution variables.

Parameter Comparison

Engineering Selection Recommendations

Both the SMCG22A-M3/9AT and SMCG22A-E3/57T are active production components manufactured by Vishay General Semiconductor - Diodes Division. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement. The electrical specifications, mechanical package configuration, and environmental operating parameters are identical across both part numbers. Selection between these parts should be based on supply chain availability, procurement lead times, and inventory requirements. The difference in part numbers reflects variations in tape and reel packaging specifications only, which do not affect circuit performance or board-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can SMCG22A-E3/57T be used as a direct replacement for SMCG22A-M3/9AT in production?

A: Yes. Both parts are electrically and mechanically identical. The difference in part numbers reflects only the tape and reel packaging configuration. No circuit redesign or board layout modification is required.

Q: Are there any differences in the DO-215AB package between these two part numbers?

A: No. Both parts use the identical DO-215AB SMC Gull Wing surface mount package. The physical footprint, lead spacing, and soldering requirements are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SMCG22A-M3/9AT and SMCG22A-E3/57T are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: What is the difference between the M3/9AT and E3/57T designations?

A: These designations refer to different tape and reel packaging specifications used for automated component handling and placement. The M3/9AT and E3/57T variants differ in reel size and tape configuration but contain identical electronic components.

Q: Can these parts be mixed in the same production batch?

A: Yes. Since the electrical and mechanical specifications are identical, both part numbers can be used interchangeably within the same design and production environment.

Q: What is the operating temperature range for both parts?

A: Both parts operate across the temperature range of -55°C to 150°C (junction temperature). This range applies to all electrical specifications and performance characteristics.

Q: Are there any inventory considerations when selecting between these substitutes?

A: The SMCG22A-E3/57T currently has higher inventory availability (2722 pcs) compared to SMCG22A-M3/9AT (876 pcs). Procurement decisions may be influenced by required lead times and supply chain requirements.