SMBG150A-M3/5B Equivalent & Substitute Parts

Part Overview

The SMBG150A-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 protection applications. The device is currently in active production status and is RoHS3 compliant. Substitute parts are identified when inventory constraints, lead time requirements, or supply chain considerations necessitate alternative sourcing while maintaining equivalent electrical and mechanical performance.

Substiute Parts

SMBG150A-M3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 919SMBG150A-M3/5B Datasheet

Current PartRFQ

SMBG150A-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 833SMBG150A-E3/52 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SMBG150A-M3/5B are identified based on strict equivalence of the following critical parameters:

• Voltage - Reverse Standoff (Typ): 150V
• Voltage - Breakdown (Min): 167V
• Voltage - Clamping (Max) @ Ipp: 243V
• Current - Peak Pulse (10/1000µs): 2.5A
• Power - Peak Pulse: 600W
• Package / Case: DO-215AA, SMB Gull Wing
• Mounting Type: Surface Mount
• Type: Zener, Unidirectional
• Series: TransZorb®
• Base Product Number: SMBG150

The SMBG150A-E3/52 is classified as a direct substitute because it maintains identical electrical specifications and mechanical packaging. Differences in operating temperature range and packaging code do not affect functional equivalence for general-purpose transient voltage suppression applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SMBG150A-M3/5B and SMBG150A-E3/52 are active production components manufactured by Vishay General Semiconductor - Diodes Division and carry identical RoHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• Availability and lead time requirements
• Operating temperature range constraints specific to the application
• Packaging code requirements for supply chain documentation

The SMBG150A-M3/5B supports an extended operating temperature range of -65°C to 175°C, while the SMBG150A-E3/52 operates within -55°C to 150°C. Applications requiring operation below -55°C or above 150°C must use the SMBG150A-M3/5B. For applications within the -55°C to 150°C range, either part is functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can SMBG150A-E3/52 be used as a direct replacement for SMBG150A-M3/5B?

A: Yes, for applications operating within the temperature range of -55°C to 150°C. Both parts share identical electrical specifications, including voltage ratings, clamping characteristics, and peak pulse current ratings. The primary difference is the operating temperature range.

Q: What is the significance of the packaging code difference (M3/5B vs. E3/52)?

A: The packaging codes indicate different tape and reel configurations from the manufacturer. Both use identical DO-215AA (SMB Gull Wing) surface-mount packages. The code difference reflects supply chain or manufacturing batch designation and does not affect component functionality or PCB compatibility.

Q: Are both parts suitable for general-purpose transient voltage suppression?

A: Yes. Both SMBG150A-M3/5B and SMBG150A-E3/52 are rated for general-purpose applications with identical transient suppression characteristics: 150V reverse standoff voltage, 243V maximum clamping voltage, and 2.5A peak pulse current.

Q: What compliance certifications apply to both parts?

A: Both parts 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 order if both are available?

A: Verify your application's operating temperature requirements. If operation below -55°C or above 150°C is required, specify SMBG150A-M3/5B. For applications within -55°C to 150°C, either part meets functional requirements. Consider lead time and inventory availability as secondary selection criteria.