SMBG24A-M3/5B Equivalent & Substitute Parts

Part Overview

The SMBG24A-M3/5B 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 and widely available in inventory. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to supply constraints, procurement preferences, or design flexibility needs.

Substiute Parts

SMBG24A-M3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 889SMBG24A-M3/5B Datasheet

Current PartRFQ

SMBG24A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 4414SMBG24A-E3/52 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBG24A-M3/5B is determined by strict equivalence across the following critical parameters:

• Voltage - Reverse Standoff (Typ): 24V
• Voltage - Breakdown (Min): 26.7V
• Voltage - Clamping (Max) @ Ipp: 38.9V
• Current - Peak Pulse (10/1000µs): 15.4A
• Power - Peak Pulse: 600W
• Package / Case: DO-215AA, SMB Gull Wing
• Mounting Type: Surface Mount
• Series: TransZorb®
• Type: Zener
• Unidirectional Channels: 1

The identified substitute part SMBG24A-E3/52 maintains electrical equivalence across all voltage and current ratings, package specifications, and mounting characteristics. Both parts share the same base product number (SMBG24) and are manufactured by the same supplier, ensuring design compatibility at the circuit level.

Parameter Comparison

Engineering Selection Recommendations

Both SMBG24A-M3/5B and SMBG24A-E3/52 are active production parts with ROHS3 compliance and unlimited moisture sensitivity rating. The primary distinction is the operating temperature range: the main part supports -65°C to 175°C, while the substitute supports -55°C to 150°C. Selection between these parts should be based on the specific thermal requirements of the application. For applications operating within the -55°C to 150°C range, either part is suitable. For applications requiring extended low-temperature operation below -55°C or sustained operation above 150°C, the SMBG24A-M3/5B is the appropriate choice. Both parts carry identical electrical ratings and package specifications, ensuring direct PCB-level compatibility.

Frequently Asked Questions (FAQ)

Q: Can SMBG24A-E3/52 be used as a direct replacement for SMBG24A-M3/5B?

A: Yes, for applications operating within the temperature range of -55°C to 150°C. Both parts have identical electrical specifications (24V standoff, 38.9V clamping, 15.4A peak pulse current, 600W peak power) and the same DO-215AA package. The operating temperature range difference must be evaluated against your application requirements.

Q: What is the significance of the different part number suffixes (M3/5B vs. E3/52)?

A: The suffixes indicate different packaging configurations and tape specifications from the manufacturer. Both are supplied in Tape & Reel format suitable for automated assembly. The electrical and mechanical specifications remain equivalent.

Q: Are there any PCB layout or assembly considerations when switching between these parts?

A: No. Both parts use the identical DO-215AA SMB Gull Wing package and surface-mount configuration. PCB footprints, solder reflow profiles, and assembly processes are directly compatible.

Q: What compliance certifications apply to both parts?

A: Both SMBG24A-M3/5B and SMBG24A-E3/52 are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. Both are classified under ECCN EAR99 and HTSUS 8541.10.0080.

Q: How do I determine which part to select for my design?

A: Evaluate your application's operating temperature requirements. If your circuit operates within -55°C to 150°C, either part is suitable. If sustained operation below -55°C or above 150°C is required, specify SMBG24A-M3/5B. For all other electrical and mechanical criteria, the parts are fully equivalent.