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STMicroelectronics SM4T18CAY TVS Diodes

Bidirectional TVS Diode, 400W, 15V, SMA, AEC-Q101

474 ActiveSTMicroelectronicsSM4T18DO-214AC, SMA$2.92
SM4T18CAY DO-214AC, SMA package illustration

Same model may have multiple batches, images only for reference.

SM4T18CAY
Manufacturer
Part Number (MPN)
SM4T18CAY
Category
Circuit ProtectionTVS DiodesSTMicroelectronics SM4T18CAY
Base Model
Detailed Description
Bidirectional TVS Diode, 400W, 15V, SMA, AEC-Q101
Package
DO-214AC, SMA
Lifecycle Status
Active
Datasheet
PDF SM4T18CAY Datasheet
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Ordering Code Family

SM4T18 groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

2 ordering variants listed on the family page.

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Technical Specifications

STMicroelectronics SM4T18CAY TVS Diodes technical specifications.

General

Series
SM4TY, TRANSIL™
Package / Case
DO-214AC, SMA
Mounting Type
Surface Mount
Operating Temperature
-55°C ~ 150°C (TJ)
Lifecycle Status
Active
Current Peak Pulse 10 1000 S
71A (8/20µs)
Power Peak Pulse
400W
Power Line Protection
No
Grade
Automotive
Type
Zener

Alternate Parts Comparison (SM4T18CAY vs SM4T18AY vs SM6T7V5CA vs SM15T39CA)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
SeriesSM4TY, TRANSIL™SM4TY, TRANSIL™SM6T, TRANSIL™SM15T, TRANSIL™
Package / CaseDO-214AC, SMADO-214AC, SMADO-214AA, SMBDO-214AB, SMC
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-55°C ~ 150°C (TJ)-55°C ~ 150°C (TJ)-55°C ~ 150°C (TJ)-55°C ~ 150°C (TJ)
Lifecycle StatusActiveActiveProductionActive
Current Peak Pulse 10 1000 S71A (8/20µs)71A (8/20µs)53A143A (8/20µs)
Power Line ProtectionNoNoNoNo
TypeZenerZenerZenerZener
Voltage Clamping Max Ipp32.5V32.5V11.3V69.7V
Voltage Reverse Standoff Typ15V15V6.4V33.3V
Bidirectional Channels1--11
Power Peak Pulse400W400W--1500W (1.5kW)
Action

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Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.