SMCG30A-M3/9AT Equivalent & Substitute Parts

Part Overview

The SMCG30A-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

SMCG30A-M3/9AT

Vishay General Semiconductor - Diodes DivisionIn Stock: 1073SMCG30A-M3/9AT Datasheet

Current PartRFQ

SMCG30A-E3/57T

Vishay General Semiconductor - Diodes DivisionIn Stock: 2299SMCG30A-E3/57T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMCG30A-M3/9AT is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 30V
• Voltage - Breakdown (Min): 33.3V
• Voltage - Clamping (Max) @ Ipp: 48.4V
• Current - Peak Pulse (10/1000µs): 31A
• Power - Peak Pulse: 1500W
• Unidirectional Channels: 1
• Package / Case: DO-215AB, SMC Gull Wing
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C to 150°C (TJ)

The substitute part SMCG30A-E3/57T meets all of these critical parameters identically. The difference between the main part and the substitute lies only in the packaging configuration (tape & reel variant designation), which does not affect electrical performance or functional compatibility in the circuit.

Parameter Comparison

Engineering Selection Recommendations

Both the SMCG30A-M3/9AT and SMCG30A-E3/57T are active production components from Vishay General Semiconductor - Diodes Division. Both parts carry identical electrical specifications, thermal ratings, and compliance certifications (RoHS3 Compliant, REACH Unaffected). The parts are functionally interchangeable in circuit design and PCB layout.

Selection between these parts should be based on procurement availability and packaging requirements. The SMCG30A-E3/57T currently maintains higher inventory availability (2289 Pcs) compared to the SMCG30A-M3/9AT (984 Pcs). Both parts are supplied in tape & reel packaging suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Are SMCG30A-M3/9AT and SMCG30A-E3/57T electrically identical?

A: Yes. Both parts are identical in all electrical parameters, including voltage ratings, current ratings, power dissipation, and operating temperature range. They are direct functional equivalents.

Q: What is the difference between these part numbers?

A: The difference lies in the tape & reel packaging configuration variant. The suffix designations (M3/9AT versus E3/57T) indicate different packaging specifications from the supplier, but the die and electrical performance are identical.

Q: Can I substitute SMCG30A-E3/57T for SMCG30A-M3/9AT in my design?

A: Yes. The parts are pin-compatible, package-compatible, and electrically equivalent. No circuit modifications or PCB layout changes are required.

Q: Are both parts RoHS3 compliant?

A: Yes. Both SMCG30A-M3/9AT and SMCG30A-E3/57T are RoHS3 compliant and REACH unaffected.

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

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

Q: Which part should I specify for new designs?

A: Either part is acceptable for new designs. Selection should be based on current supplier availability and procurement lead times. Both parts are in active production status.