SMBG30A-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBG30A-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 suppression applications. The part is currently active in production with 903 pieces available in new original inventory. TVS diodes are essential in circuit protection applications where transient overvoltage events must be rapidly suppressed to prevent damage to sensitive downstream components. Identifying equivalent substitute parts ensures design flexibility and supply chain continuity.

Substiute Parts

SMBG30A-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 971SMBG30A-M3/52 Datasheet

Current PartRFQ

SMBG30A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 12143SMBG30A-E3/52 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of TVS diodes is determined by strict electrical and mechanical parameter matching. The SMBG30A-M3/52 can be substituted with parts that maintain identical specifications 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): 12.4A
• Power - Peak Pulse: 600W
• Package / Case: DO-215AA, SMB Gull Wing
• Unidirectional Channels: 1
• Type: Zener

The SMBG30A-E3/52 meets all these criteria and is therefore a direct electrical and mechanical equivalent. Both parts are manufactured by Vishay General Semiconductor - Diodes Division within the TransZorb® series and share identical electrical performance characteristics and physical packaging.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBG30A-M3/52 and SMBG30A-E3/52 are active products manufactured by Vishay General Semiconductor - Diodes Division and carry ROHS3 compliance certification. The parts are electrically and mechanically identical across all critical TVS diode parameters: reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, and power dissipation.

The primary difference between these parts is the operating temperature range. The SMBG30A-M3/52 supports -65°C to 175°C, while the SMBG30A-E3/52 supports -55°C to 150°C. Selection between these parts should be based on the specific operating temperature requirements of the application. For applications requiring the full -65°C to 175°C range, the SMBG30A-M3/52 is the appropriate choice. For applications within the -55°C to 150°C range, either part is suitable.

Both parts maintain MSL Level 1 (Unlimited) moisture sensitivity and are REACH Unaffected, ensuring compliance with environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can SMBG30A-E3/52 be used as a direct replacement for SMBG30A-M3/52?

A: Yes, provided the application operating temperature does not exceed -55°C to 150°C. The SMBG30A-E3/52 is electrically and mechanically identical to the SMBG30A-M3/52 across all critical TVS parameters. If the application requires operation below -55°C or above 150°C, the SMBG30A-M3/52 must be used.

Q: Are there any package or pinout differences between these parts?

A: No. Both parts use the DO-215AA (SMB Gull Wing) surface-mount package with identical pinout and mechanical dimensions. They are interchangeable at the PCB assembly level.

Q: What is the significance of the different part number suffixes (-M3 vs -E3)?

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

Q: Do both parts meet the same compliance standards?

A: Yes. Both SMBG30A-M3/52 and SMBG30A-E3/52 are ROHS3 Compliant, REACH Unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: Which part should be selected for new designs?

A: Selection depends on the application's operating temperature requirements. For designs requiring the extended temperature range of -65°C to 175°C, specify SMBG30A-M3/52. For designs operating within -55°C to 150°C, either part is acceptable. Inventory availability may also influence selection, as SMBG30A-E3/52 currently has higher stock levels (12100 pcs vs 903 pcs).