SMBG15C-E3/5B Equivalent & Substitute Parts

Part Overview

The SMBG15C-E3/5B is a bidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for general-purpose transient protection applications. This component features a 15V reverse standoff voltage with a 26.9V maximum clamping voltage and 22.3A peak pulse current capability in a surface-mount DO-215AA (SMB) package. The part is currently listed as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement.

Substiute Parts

SMBG15C-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 890SMBG15C-E3/5B Datasheet

Current PartRFQ

SMBG15CA-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 866SMBG15CA-E3/5B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SMBG15C-E3/5B is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - Reverse Standoff (Typ): 15V
• Voltage - Breakdown (Min): 16.7V
• Bidirectional Channels: 1
• Type: Zener
• Category: Transient Voltage Suppressors (TVS)

Mechanical Equivalence Criteria:

• Package / Case: DO-215AA, SMB Gull Wing
• Mounting Type: Surface Mount

Compliance & Environmental Criteria:

• RoHS Status: ROHS3 Compliant
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The SMBG15CA-E3/5B meets all substitution criteria. While it exhibits minor variations in clamping voltage (24.4V vs. 26.9V) and peak pulse current (24.6A vs. 22.3A), these parameters remain within the functional tolerance band for general-purpose TVS applications and do not compromise circuit protection performance.

Parameter Comparison

Engineering Selection Recommendations

The SMBG15CA-E3/5B is the direct substitute for the obsolete SMBG15C-E3/5B. Both components are manufactured by Vishay General Semiconductor - Diodes Division within the TransZorb® series and share identical electrical specifications for reverse standoff voltage, breakdown voltage, and operating temperature range. Both components maintain ROHS3 compliance and MSL Level 1 rating.

The SMBG15CA-E3/5B offers the advantage of active product status, ensuring continued availability and manufacturing support. The minor parameter variations (clamping voltage and peak pulse current) do not affect functional equivalence for general-purpose transient protection applications. The substitute part is available in Tape & Reel packaging, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the SMBG15CA-E3/5B be used as a direct replacement for the SMBG15C-E3/5B?

A: Yes. Both components share identical reverse standoff voltage (15V), breakdown voltage (16.7V), package type (DO-215AA, SMB Gull Wing), and operating temperature range (-55°C ~ 150°C). The SMBG15CA-E3/5B is the active equivalent of the obsolete SMBG15C-E3/5B.

Q: What are the differences between these two parts?

A: The SMBG15CA-E3/5B exhibits a lower maximum clamping voltage (24.4V vs. 26.9V) and higher peak pulse current (24.6A vs. 22.3A). Both components maintain 600W peak pulse power rating. These variations remain within functional tolerance for general-purpose TVS applications.

Q: Are there packaging differences between the main part and substitute?

A: Both components use the DO-215AA (SMB Gull Wing) surface-mount package. The SMBG15CA-E3/5B is supplied in Tape & Reel packaging, while the main part does not specify packaging format. Both are compatible with standard surface-mount assembly equipment.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SMBG15C-E3/5B and SMBG15CA-E3/5B are ROHS3 compliant with MSL Level 1 rating (unlimited moisture sensitivity). Both are REACH unaffected and classified under ECCN EAR99.

Q: Why is the main part listed as obsolete?

A: The SMBG15C-E3/5B is no longer in active production. The SMBG15CA-E3/5B represents the current active equivalent within the TransZorb® series and should be used for new designs and ongoing procurement.