SMBG9.0C-E3/5B Equivalent & Substitute Parts

Part Overview

The SMBG9.0C-E3/5B is a bidirectional Transient Voltage Suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for general-purpose overvoltage protection applications. This component features a 9V reverse standoff voltage with a 16.9V maximum clamping voltage and 35.5A peak pulse current capability in a surface-mount DO-215AA (SMB) package. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements.

Substiute Parts

SMBG9.0C-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 783SMBG9.0C-E3/5B Datasheet

Current PartRFQ

SMBG9.0CA-E3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 826SMBG9.0CA-E3/5B Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SMBG9.0C-E3/5B is determined by strict equivalence across the following critical parameters:

• Reverse Standoff Voltage: 9V (Typ)
• Breakdown Voltage: 10V (Min)
• Package Type: DO-215AA, SMB Gull Wing (Surface Mount)
• Bidirectional Configuration: Single channel
• Series Classification: TransZorb® family
• Zener Type: Maintained across substitutes
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Compliance Standards: ROHS3 Compliant, REACH Unaffected

The SMBG9.0CA-E3/5B qualifies as a direct substitute based on identical reverse standoff voltage, breakdown voltage, package configuration, and thermal operating range. Variations in clamping voltage (15.4V vs. 16.9V) and peak pulse current (39A vs. 35.5A) remain within the functional tolerance of the SMBG9.0 base product family and do not disqualify substitution for general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

The SMBG9.0CA-E3/5B is the qualified substitute for the obsolete SMBG9.0C-E3/5B. Selection is supported by the following factors:

Product Status: The substitute part maintains Active status, ensuring continued availability and manufacturing support. The main part's Obsolete classification necessitates transition to an active equivalent.

Compliance Alignment: Both parts maintain identical ROHS3 compliance and REACH Unaffected status, satisfying regulatory requirements for new designs and production environments.

Electrical Equivalence: Reverse standoff voltage (9V), breakdown voltage (10V), and peak pulse power (600W) are identical. The substitute's improved clamping voltage (15.4V vs. 16.9V) and higher peak pulse current (39A vs. 35.5A) provide enhanced performance margins within the same functional class.

Package Compatibility: Identical DO-215AA SMB Gull Wing surface-mount configuration ensures direct PCB footprint compatibility without layout modifications.

Thermal Performance: Matching operating temperature range (-55°C ~ 150°C TJ) maintains thermal design equivalence across applications.

Frequently Asked Questions (FAQ)

Q: Can SMBG9.0CA-E3/5B be used as a direct replacement for SMBG9.0C-E3/5B?

A: Yes. Both parts share identical reverse standoff voltage (9V), breakdown voltage (10V), package configuration (DO-215AA SMB), and thermal operating range. The substitute is electrically and mechanically compatible for general-purpose TVS applications.

Q: What is the difference in clamping voltage between these parts?

A: The main part specifies 16.9V maximum clamping voltage, while the substitute specifies 15.4V. This 1.5V difference represents improved clamping performance in the substitute and does not prevent substitution for applications designed around the 9V standoff specification.

Q: Does the higher peak pulse current of the substitute affect compatibility?

A: No. The substitute's 39A peak pulse current (vs. 35.5A in the main part) represents enhanced current handling capability. Both parts maintain 600W peak pulse power, and the increase in current capacity does not compromise circuit compatibility.

Q: Are there packaging differences between these parts?

A: The main part is supplied in bulk packaging, while the substitute is supplied in Tape & Reel (TR) format. Both use identical DO-215AA SMB Gull Wing surface-mount packages. Tape & Reel packaging is standard for automated assembly processes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SMBG9.0C-E3/5B and SMBG9.0CA-E3/5B are ROHS3 Compliant and REACH Unaffected, with identical Moisture Sensitivity Level (MSL) 1 ratings.

Q: Why is the main part classified as obsolete?

A: Obsolescence reflects Vishay's product lifecycle management. The SMBG9.0CA-E3/5B maintains the same functional specifications and remains in active production, making it the appropriate choice for new designs and ongoing production support.