SMBG7.5-E3/5B Equivalent & Substitute Parts

Part Overview

The SMBG7.5-E3/5B is a unidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, part of the TransZorb® series. This component is designed for general-purpose transient voltage suppression applications in surface-mount configurations using the DO-215AA (SMB) package. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement.

Substiute Parts

SMBG7.5-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 1080SMBG7.5-E3/5B Datasheet

Current PartRFQ

SMBG7.5A-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 954SMBG7.5A-E3/5B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SMBG7.5-E3/5B is determined by strict equivalence across the following critical parameters:

• Reverse Standoff Voltage: 7.5V (Typ)
• Breakdown Voltage (Min): 8.33V
• Package Type: DO-215AA (SMB Gull Wing)
• Mounting Type: Surface Mount
• Unidirectional Configuration: 1 channel
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Compliance: ROHS3 Compliant, REACH Unaffected

The SMBG7.5A-E3/5B qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. Variations in clamping voltage and peak pulse current do not disqualify substitution when the core voltage rating and package specifications remain identical.

Parameter Comparison

Engineering Selection Recommendations

The SMBG7.5A-E3/5B is the qualified substitute for the obsolete SMBG7.5-E3/5B. Both components maintain identical voltage ratings, package specifications, and compliance certifications. The SMBG7.5A-E3/5B carries Active product status, ensuring continued availability and manufacturing support. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements. The substitute part is available in Tape & Reel packaging, suitable for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the SMBG7.5A-E3/5B be used as a direct replacement for the SMBG7.5-E3/5B?

A: Yes. Both parts share identical reverse standoff voltage (7.5V), breakdown voltage (8.33V minimum), and DO-215AA package specifications. The electrical and mechanical compatibility is established.

Q: What is the difference between the clamping voltages of these two parts?

A: The SMBG7.5-E3/5B has a maximum clamping voltage of 14.3V at peak pulse current, while the SMBG7.5A-E3/5B has a maximum clamping voltage of 12.9V. Both values fall within acceptable operating ranges for 7.5V standoff voltage applications.

Q: Are there packaging differences between these parts?

A: Both parts use the DO-215AA (SMB Gull Wing) surface-mount package. The SMBG7.5A-E3/5B is supplied in Tape & Reel format, which is standard for high-volume automated assembly.

Q: Does the SMBG7.5A-E3/5B meet the same compliance standards?

A: Yes. Both parts are ROHS3 Compliant, REACH Unaffected, with MSL rating of 1 (Unlimited), and operate across the same temperature range of -55°C to 150°C (TJ).

Q: Why is the original part listed as obsolete?

A: Product obsolescence is determined by the manufacturer. The SMBG7.5A-E3/5B, as an active product from the same manufacturer and series, provides continuity for applications requiring 7.5V TVS diode functionality in SMB packages.