SM6T18A STMicroelectronics TVS Diode (Uni-directional) (Diodes Moulded) In Stock

Peak pulse power: 600 W (10/1000 μs) and 4 kW (8/20 μs) • Stand-off voltage range from 5 V to 188 V • Unidirectional and bidirectional types • Low leakage current: 0.2 μA at 25 °C and 1 μA at 85 °C • Operating Tj max: 150 °C • High power capability at Tj max.: up to 515 W (10/1000 µs) • Lead finishing: matte tin plating

ACTIVETVS Diode (Uni-directional)Verified May 2026
Package / Visual Reference
SM6T18ADiodes Moulded
Quick Facts
Manufacturer
STMicroelectronics
Package
Diodes Moulded
Pin Count
2
Lifecycle
ACTIVE
Category
TVS Diode (Uni-directional)
Price
From $0.0647(MOQ 100)
Temp Range
-55.0°C to 150.0°C
RoHS
Compliant
Lead Time
3–7 business days
Shipping
DHL Express · Worldwide

Specifications

Factory Lead Time13Weeks
YTEOL7.46
Additional FeatureUL RECOGNIZED
Breakdown Voltage-Max18.9V
Breakdown Voltage-Min17.1V
Breakdown Voltage-Nom18V
Clamping Voltage-Max25.2V
ConfigurationSINGLE, 1 CHANNEL
Diode Element MaterialSILICON
Diode TypeTRANS VOLTAGE SUPPRESSOR DIODE
JEDEC-95 CodeDO-214AA
JESD-30 CodeR-PDSO-C2
JESD-609 Codee3
Non-rep Peak Rev Power Dis-Max600W
Number of Elements1
Package Body MaterialPLASTIC/EPOXY
Package ShapeRECTANGULAR
Package StyleSMALL OUTLINE
Peak Reflow Temperature (Cel)260
PolarityUNIDIRECTIONAL
Power Dissipation-Max5W
Qualification StatusNot Qualified
Reference StandardIEC-61000-4-2, 4-4, 4-5; MIL-STD-750
Rep Pk Reverse Voltage-Max15.3V
Reverse Current-Max0.2 µA
Reverse Test Voltage15.3V
Surface MountYES
TechnologyAVALANCHE
Terminal FinishMatte Tin (Sn) - annealed
Terminal FormC BEND
Terminal PositionDUAL
Time@Peak Reflow Temperature-Max (s)30
PackageDiodes Moulded

Compliance & Regulatory

RoHS StatusCompliant
Moisture Sensitivity LevelMSL 1
ECCNEAR99
HTS Code8541.10.00.50
Country of OriginMainland China

Datasheet

SM6T18A Datasheet Download

Official datasheet from STMicroelectronics

Alternate & Equivalent Parts

Compatible alternatives and drop-in replacements for SM6T18A:

SM6T18CASTMicroelectronics

Trans Voltage Suppressor Diode, 600W, 15.3V V(RWM), Bidirectional, 1 Element, Silicon, DO-214AA

View Part →

Frequently Asked Questions

What is the price of SM6T18A?

SM6T18A is priced from $0.0647 USD depending on quantity. Submit an RFQ on FindMyChip for the best current pricing from authorized China distributors.

Is SM6T18A in stock?

SM6T18A is currently available at FindMyChip. We maintain stock from authorized distributors and ship worldwide with typical 3-7 business day lead time.

Where can I buy SM6T18A?

You can buy SM6T18A from FindMyChip, a B2B electronic component platform sourcing from China distributors. We offer competitive pricing and low MOQ for SM6T18A from STMicroelectronics.

What is the datasheet for SM6T18A?

The official SM6T18A datasheet from STMicroelectronics contains full specifications including pin configuration, electrical characteristics, and application notes. Download it directly from the datasheet section above.

What package does SM6T18A come in?

SM6T18A is available in Diodes Moulded packaging. See the package diagram and pinout above for detailed dimensional information.

Related Guides

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Competitive Pricing
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About STMicroelectronics

STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.

AvailabilityIn Stock
Reference Price (USD)
From $0.0647
Buy from 1pc · Factory-direct pricing
Qty.Unit PriceExt. Price
100+$0.2588$25.88
500+$0.1600$80.00
1000+$0.1300$130.00
2500+$0.0839$209.75
10000+$0.0650$649.90
20000+$0.0647$1293.20
pcs
Unit price: $0.2588 · Total: $25.88

In Stock · 24h Response · Worldwide Shipping

Lead Time3-7 business days
MOQFrom 1 piece
ShippingDHL / FedEx / UPS
OriginChina (Authorized)

Response within 24 hours · Worldwide shipping

Their engineering team helped us find a pin-compatible alternative when our original MCU went EOL.

MR
Marco Rossi
CTO, AutoDrive Systems, Italy