SMBG40CA-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBG40CA-M3/52 is a unidirectional Transient Voltage Suppressor (TVS) diode manufactured by Vishay General Semiconductor - Diodes Division. This surface mount component operates with a 40V reverse standoff voltage and provides 64.5V maximum clamping voltage at peak pulse current of 9.3A, delivering 600W peak pulse power dissipation. The device is classified as Active product status and is designed for general purpose transient voltage suppression applications. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain performance specifications across production batches and procurement cycles.

Substiute Parts

SMBG40CA-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1043SMBG40CA-M3/52 Datasheet

Current PartRFQ

SMBG40CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 3995SMBG40CA-E3/52 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBG40CA-M3/52 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff: 40V (Typ)
• Voltage - Breakdown: 44.4V (Min)
• Voltage - Clamping: 64.5V (Max) @ Ipp
• Current - Peak Pulse: 9.3A (10/1000µs)
• Power - Peak Pulse: 600W
• Package / Case: DO-215AA, SMB Gull Wing
• Bidirectional Channels: 1
• Type: Zener
• Series: TransZorb®
• Mounting Type: Surface Mount

The SMBG40CA-E3/52 meets all electrical and mechanical substitution criteria. Both parts share identical voltage ratings, peak pulse current specifications, power dissipation capacity, and physical packaging. Both are manufactured by Vishay General Semiconductor - Diodes Division within the TransZorb® series and maintain Active product status with full RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBG40CA-M3/52 and SMBG40CA-E3/52 are Active products manufactured by Vishay General Semiconductor - Diodes Division and maintain full ROHS3 compliance with MSL 1 (Unlimited) moisture sensitivity rating. Selection between these parts should be based on application-specific operating temperature requirements. The SMBG40CA-M3/52 supports an extended operating temperature range of -65°C to 175°C, while the SMBG40CA-E3/52 operates within -55°C to 150°C. For applications requiring operation at temperatures below -55°C or above 150°C, the SMBG40CA-M3/52 is the appropriate choice. For applications within the -55°C to 150°C range, either part is electrically and mechanically equivalent. Both parts are supplied in Tape & Reel packaging suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can SMBG40CA-E3/52 be used as a direct replacement for SMBG40CA-M3/52?

A: The SMBG40CA-E3/52 is electrically and mechanically equivalent for applications operating within the temperature range of -55°C to 150°C (TJ). The primary difference is the operating temperature range. The SMBG40CA-M3/52 supports extended low-temperature operation down to -65°C and high-temperature operation up to 175°C. Verify your application's operating temperature requirements before substitution.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution eligibility is determined by matching: Voltage - Reverse Standoff (40V Typ), Voltage - Breakdown (44.4V Min), Voltage - Clamping (64.5V Max @ Ipp), Current - Peak Pulse (9.3A), Power - Peak Pulse (600W), Package / Case (DO-215AA, SMB Gull Wing), and Mounting Type (Surface Mount). All these parameters must match exactly for direct substitution.

Q: Are both parts compatible with the same PCB layout and assembly process?

A: Yes. Both SMBG40CA-M3/52 and SMBG40CA-E3/52 use identical DO-215AA (SMB Gull Wing) packaging and surface mount technology. They are compatible with the same PCB footprint and automated assembly equipment. Both are supplied in Tape & Reel format.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. Both maintain MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture control requirements during storage or handling.

Q: How do the electrical specifications compare between these parts?

A: The electrical specifications are identical. Both parts provide 40V reverse standoff voltage, 44.4V minimum breakdown voltage, 64.5V maximum clamping voltage at 9.3A peak pulse current, and 600W peak pulse power dissipation. The only difference is the operating temperature range.