Vishay SMBG18CA-M3/5B Equivalent & Substitute Parts Reference

Part Overview

The Vishay General Semiconductor SMBG18CA-M3/5B is an active surface-mount transient voltage suppressor (TVS) diode categorized under TransZorb® Series, designed to protect sensitive electronics from voltage transients. The necessity to identify substitute or equivalent models arises due to supply chain considerations, inventory levels, or tailored application constraints.

Substiute Parts

SMBG18CA-M3/5B

Vishay General Semiconductor - Diodes DivisionIn Stock: 859SMBG18CA-M3/5B Datasheet

Current PartRFQ

SMBG18CA-E3/52

Vishay General Semiconductor - Diodes DivisionIn Stock: 17776SMBG18CA-E3/52 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute or equivalent transient voltage suppressor diodes are grouped based on explicit matching of critical electrical and mechanical parameters, including: TVS category, bidirectional channel configuration, standoff and breakdown voltages, clamping voltage at peak current, pulse handling capabilities, package type, mounting method, compliance certifications, and product status. Only parts with strictly matching parametric values are considered suitable substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both SMBG18CA-M3/5B and SMBG18CA-E3/52 are classified as active products and share identical compliance certifications, including ROHS3 and REACH, as well as matching Moisture Sensitivity Level and export control classifications. Selection between these TVS diodes may be based on inventory availability and packaging preferences, within the strict context of supplied parameter equivalence.

Frequently Asked Questions (FAQ)

Q1: What are the required parameters to qualify a TVS diode as an equivalent substitute?
A1: The substitute must match in bidirectional channel count, reverse standoff voltage, breakdown voltage, clamping voltage, peak pulse current, peak pulse power, package type, mounting method, compliance status, and product classification.

Q2: Are SMBG18CA-M3/5B and SMBG18CA-E3/52 compatible for direct replacement in the same PCB footprint?
A2: Both parts utilize the DO-215AA, SMB Gull Wing surface-mount package. Mechanical compatibility is maintained within the specified footprint.

Q3: Does compliance status impact substitution between the two TVS diodes?
A3: Both TVS diodes are ROHS3 compliant and REACH unaffected, with identical MSL ratings and export control classifications, supporting direct substitution for compliance-driven applications.

Q4: What differentiates the substitute part SMBG18CA-E3/52 from the main part SMBG18CA-M3/5B?
A4: The only differentiators provided are part number and inventory levels. All functional and compliance parameters are matched based on input data.