SMCG43A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCG43A-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 maintains full inventory availability. Substitute parts are identified to provide alternative sourcing options while maintaining identical electrical and mechanical specifications.

Substiute Parts

SMCG43A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 1005SMCG43A-M3/9AT Datasheet

Current PartRFQ

SMCG43A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 2274SMCG43A-E3/57T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMCG43A-M3/9AT are identified based on strict equivalence across all critical electrical and mechanical parameters. The substitution criteria are:

• Identical Voltage - Reverse Standoff (Typ): 43V
• Identical Voltage - Breakdown (Min): 47.8V
• Identical Voltage - Clamping (Max) @ Ipp: 69.4V
• Identical Current - Peak Pulse (10/1000µs): 21.6A
• Identical Power - Peak Pulse: 1500W
• Identical Operating Temperature Range: -55°C to 150°C (TJ)
• Identical Package / Case: DO-215AB, SMC Gull Wing
• Identical Mounting Type: Surface Mount
• Identical Product Status: Active
• Identical Compliance: ROHS3 Compliant, REACH Unaffected

Parts meeting all these criteria are classified as direct electrical and mechanical equivalents suitable for component substitution.

Parameter Comparison

Engineering Selection Recommendations

Both the SMCG43A-M3/9AT and SMCG43A-E3/57T are active production components from Vishay General Semiconductor - Diodes Division with identical electrical and mechanical specifications. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and distribution.

Selection between these parts is based on availability and supply chain considerations. The SMCG43A-E3/57T currently maintains higher inventory levels (2205 pcs) compared to the SMCG43A-M3/9AT (975 pcs), making it suitable for applications requiring extended lead time assurance or bulk procurement. Both parts are functionally interchangeable for all 43V TVS diode applications requiring the specified electrical performance parameters.

Frequently Asked Questions (FAQ)

Q: Are SMCG43A-M3/9AT and SMCG43A-E3/57T electrically identical?

A: Yes. Both parts share identical electrical specifications including 43V reverse standoff voltage, 47.8V minimum breakdown voltage, 69.4V maximum clamping voltage, 21.6A peak pulse current, and 1500W peak pulse power rating.

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

A: Yes. Both parts use the identical DO-215AB (SMC Gull Wing) surface-mount package, ensuring mechanical and electrical compatibility on the same printed circuit board layout.

Q: What is the difference between the part numbers?

A: The part numbers differ in their tape reel specifications (M3/9AT versus E3/57T), which relate to packaging and supplier configurations. The core component specifications remain identical.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both SMCG43A-M3/9AT and SMCG43A-E3/57T are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic components.

Q: What is the operating temperature range for these TVS diodes?

A: Both parts operate across -55°C to 150°C junction temperature range, suitable for industrial and commercial applications.

Q: Are these parts suitable for power line protection applications?

A: No. Both parts are classified for general-purpose transient voltage suppression applications and are not designated for power line protection.