SMBG40A-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBG40A-M3/52 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 active in production and RoHS3 compliant. Substitute parts are identified when inventory constraints, lead time requirements, or supply chain considerations necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

SMBG40A-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 787SMBG40A-M3/52 Datasheet

Current PartRFQ

SMBG40A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 4060SMBG40A-E3/52 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBG40A-M3/52 is determined by strict equivalence across the following critical parameters:

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

The substitute part SMBG40A-E3/52 meets all electrical specifications and mechanical requirements. Both parts share identical voltage ratings, current handling capacity, power dissipation capability, and package configuration. Substitution is valid based on these matching parameters.

Parameter Comparison

*Operating temperature range differs. SMBG40A-M3/52 supports -65°C to 175°C; SMBG40A-E3/52 supports -55°C to 150°C. Selection depends on application temperature requirements.

Engineering Selection Recommendations

Both SMBG40A-M3/52 and SMBG40A-E3/52 are active production components with ROHS3 compliance and REACH unaffected status. Selection between these parts is based on:

1. Operating temperature requirements: SMBG40A-M3/52 provides extended low-temperature operation to -65°C and high-temperature operation to 175°C. SMBG40A-E3/52 operates within -55°C to 150°C range.

2. Inventory availability: SMBG40A-E3/52 has higher stock availability (3975 Pcs) compared to SMBG40A-M3/52 (774 Pcs).

3. Regulatory compliance: Both parts meet identical compliance requirements for RoHS3, REACH, and MSL ratings.

For applications operating within the -55°C to 150°C temperature range, SMBG40A-E3/52 is a direct electrical and mechanical substitute. For applications requiring extended temperature operation, SMBG40A-M3/52 is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can SMBG40A-E3/52 replace SMBG40A-M3/52 in all applications?

A: SMBG40A-E3/52 is a direct substitute for applications operating within -55°C to 150°C junction temperature range. If your application requires operation below -55°C or above 150°C, SMBG40A-M3/52 must be used due to its extended operating temperature range of -65°C to 175°C.

Q: Are the electrical specifications identical between these parts?

A: Yes. Both parts have identical voltage ratings (40V reverse standoff, 44.4V breakdown minimum, 64.5V clamping maximum), current handling (9.3A peak pulse), and power dissipation (600W peak pulse).

Q: Do both parts use the same package?

A: Yes. Both SMBG40A-M3/52 and SMBG40A-E3/52 use the DO-215AA (SMB Gull Wing) surface-mount package with identical footprint and mounting requirements.

Q: What is the difference between the part number suffixes M3 and E3?

A: The suffix indicates the tape and reel configuration from Vishay. Both are Tape & Reel (TR) packaging. The electrical and mechanical specifications remain identical.

Q: Are both parts RoHS3 compliant?

A: Yes. Both SMBG40A-M3/52 and SMBG40A-E3/52 are ROHS3 compliant with MSL rating of 1 (Unlimited) and REACH unaffected status.