SMBG33CHE3/52 Equivalent & Substitute Parts

Part Overview

The SMBG33CHE3/52 is a transient voltage suppressor (TVS) diode from Vishay General Semiconductor - Diodes Division, designed for surface mount applications in the DO-215AA (SMB) package. This component provides bidirectional transient voltage suppression with a 33V reverse standoff voltage and 59V maximum clamping voltage. The part is currently listed as obsolete, making identification of suitable substitute components necessary for ongoing design support and procurement.

Substiute Parts

SMBG33CHE3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1106SMBG33CHE3/52 Datasheet

Current PartRFQ

SMBG33CAHE3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 1167SMBG33CAHE3/52 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SMBG33CHE3/52 is determined by the following critical parameters:

• Voltage - Reverse Standoff (Typ): 33V
• Voltage - Breakdown (Min): 36.7V
• Package / Case: DO-215AA, SMB Gull Wing
• Mounting Type: Surface Mount
• Operating Temperature Range: -55°C ~ 150°C (TJ)
• Grade: Automotive
• Qualification: AEC-Q101

The SMBG33CAHE3/52 qualifies as a direct substitute based on matching all critical electrical specifications, package configuration, automotive grade designation, and AEC-Q101 qualification. Both components share identical reverse standoff voltage, breakdown voltage, package type, temperature range, and automotive compliance requirements. The substitute part maintains the same functional classification within the TransZorb® series.

Parameter Comparison

Engineering Selection Recommendations

The SMBG33CAHE3/52 is the qualified substitute for the obsolete SMBG33CHE3/52. Both components maintain identical automotive grade designation and AEC-Q101 qualification status, ensuring compliance with automotive reliability standards. The substitute part is currently in active production status, providing supply continuity for applications requiring 33V TVS diode protection in the DO-215AA package.

The SMBG33CAHE3/52 offers improved performance characteristics with higher peak pulse current capability (11.3A versus 10.2A) and lower maximum clamping voltage (53.3V versus 59V), making it functionally superior for transient suppression applications while maintaining full electrical and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can SMBG33CAHE3/52 be used as a direct replacement for SMBG33CHE3/52?

A: Yes. Both components share identical reverse standoff voltage (33V), breakdown voltage (36.7V), package configuration (DO-215AA SMB), operating temperature range (-55°C to 150°C), and automotive qualification (AEC-Q101). The substitute part is pin-compatible and functionally equivalent for circuit applications.

Q: What are the key differences between these two parts?

A: The primary differences are product status and performance characteristics. SMBG33CHE3/52 is obsolete, while SMBG33CAHE3/52 is active. The substitute offers higher peak pulse current (11.3A vs 10.2A) and lower clamping voltage (53.3V vs 59V), representing improved transient suppression performance.

Q: Are both parts suitable for automotive applications?

A: Yes. Both components carry automotive grade designation and AEC-Q101 qualification, meeting automotive reliability and quality standards.

Q: What packaging format is available for SMBG33CAHE3/52?

A: SMBG33CAHE3/52 is supplied in Tape & Reel (TR) format, standard for surface mount production environments.

Q: Do these parts have identical RoHS compliance?

A: Yes. Both SMBG33CHE3/52 and SMBG33CAHE3/52 are ROHS3 compliant.