SMBG15CA-M3/52 Equivalent & Substitute Parts

Part Overview

The SMBG15CA-M3/52 is a bidirectional 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 features a 15V reverse standoff voltage with a 24.4V maximum clamping voltage and 24.6A peak pulse current capability in a compact DO-215AA (SMB) package. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating.

Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate varying inventory availability across different distribution channels and manufacturing batches.

Substiute Parts

SMBG15CA-M3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 682SMBG15CA-M3/52 Datasheet

Current PartRFQ

SMBG15CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 2337SMBG15CA-E3/52 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBG15CA-M3/52 is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 15V
• Voltage - Breakdown (Min): 16.7V
• Voltage - Clamping (Max) @ Ipp: 24.4V
• Current - Peak Pulse (10/1000µs): 24.6A
• Power - Peak Pulse: 600W
• Package / Case: DO-215AA, SMB Gull Wing
• Mounting Type: Surface Mount
• Bidirectional Channels: 1
• Type: Zener

The SMBG15CA-E3/52 meets all substitution criteria as a direct equivalent. Both parts share identical electrical performance specifications, the same physical package, and equivalent manufacturing standards. The difference in manufacturing code (M3 versus E3) reflects different production batches or tape reel configurations from the same manufacturer, with no impact on functional or electrical characteristics.

Parameter Comparison

*Operating temperature range differs. The SMBG15CA-M3/52 supports a wider temperature envelope (-65°C to 175°C) compared to the SMBG15CA-E3/52 (-55°C to 150°C). Applications requiring operation at the extreme limits of the M3 variant must verify compatibility with the E3 variant's narrower range.

Engineering Selection Recommendations

Both the SMBG15CA-M3/52 and SMBG15CA-E3/52 are active production components with full RoHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

1. Operating temperature requirements: If the application requires sustained operation below -55°C or above 150°C, the SMBG15CA-M3/52 is the appropriate choice due to its extended temperature range.

2. Supply availability: The SMBG15CA-E3/52 currently has higher inventory availability (2321 units) compared to the SMBG15CA-M3/52 (648 units), making it suitable for high-volume production runs where supply continuity is prioritized.

3. Tape reel configuration: The manufacturing code difference (M3 versus E3) may reflect different tape reel specifications. Verify tape reel compatibility with existing pick-and-place equipment if automated assembly is employed.

Both parts are electrically and mechanically interchangeable for applications operating within the narrower temperature range of -55°C to 150°C.

Frequently Asked Questions (FAQ)

Q: Can SMBG15CA-E3/52 be used as a direct replacement for SMBG15CA-M3/52?

A: Yes, for applications operating between -55°C and 150°C. The electrical specifications, package, and mounting characteristics are identical. If your application requires operation outside this temperature window, particularly below -55°C or above 150°C, the SMBG15CA-M3/52 must be used.

Q: What does the manufacturing code (M3 versus E3) indicate?

A: The manufacturing code reflects different production batches or tape reel configurations from Vishay. These codes do not affect electrical performance or functional characteristics. Both variants meet identical specifications for voltage, current, and power ratings.

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

A: No. Both parts use the DO-215AA (SMB Gull Wing) package with identical physical dimensions and PCB footprint. They are fully compatible with the same circuit board layout and automated assembly processes.

Q: What compliance certifications apply to both parts?

A: Both SMBG15CA-M3/52 and SMBG15CA-E3/52 are RoHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8541.10.0080. Moisture sensitivity level is 1 (unlimited) for both variants.

Q: Which part should I select for new designs?

A: For new designs, either part is acceptable provided the operating temperature range of -55°C to 150°C is compatible with your application. Consider supply availability and lead time when making your selection. If extended temperature operation is required, specify SMBG15CA-M3/52.