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HomeProductsCircuit ProtectionTVS - DiodesSM30T21CAY
SM30T21CAY Image
Image may be representation.
See specifications for product details.

SM30T21CAY - STMicroelectronics

Manufacturer Part Number
SM30T21CAY
Manufacturer
STMicroelectronics
Allelco Part Number
32D-SM30T21CAY
ECAD Model
Parts Description
TVS DIODE 18VWM 29.2VC SMC
Detailed Description
Package
DO-214AB, SMC
Data sheet
SM30TY Series.pdf
RoHs Status
ROHS3 Compliant
In stock: 52080

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Quantity

Specifications

SM30T21CAY Tech Specifications
STMicroelectronics - SM30T21CAY technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - SM30T21CAY

Product Attribute Attribute Value  
Manufacturer STMicroelectronics  
Voltage - Reverse Standoff (Typ) 18V  
Voltage - Clamping (Max) @ Ipp 29.2V  
Voltage - Breakdown (Min) 20V  
Type Zener  
Supplier Device Package SMC  
Series Automotive, AEC-Q101, SM30TY, TRANSIL™  
Power Line Protection No  
Power - Peak Pulse 3000W (3kW)  
Product Attribute Attribute Value  
Package / Case DO-214AB, SMC  
Package Tape & Reel (TR)  
Operating Temperature -55°C ~ 175°C (TJ)  
Mounting Type Surface Mount  
Current - Peak Pulse (10/1000µs) 102.7A  
Capacitance @ Frequency -  
Bidirectional Channels 1  
Base Product Number SM30T21  
Applications Automotive  

Parts Introduction

Manufacturer Part Number

SM30T21CAY

Manufacturer

stmicroelectronics

Introduction

The SM30T21CAY is a Transient Voltage Suppressor (TVS) diode from stmicroelectronics, optimized for protecting sensitive electronic components from voltage spikes.

Product Features and Performance

Zener type TVS diode

Bidirectional protection for one line

Surface mount package

High peak pulse power dissipation (3000W)

Automotive grade

Product Advantages

Offers robust surge protection

Withstands extreme temperature conditions from -55°C to 175°C

Complies with AEC-Q101 standards for automotive reliability and performance

Key Technical Parameters

Reverse Standoff Voltage: 18V

Breakdown Voltage (Min): 20V

Clamping Voltage (Max) @ Ipp: 29.2V

Peak Pulse Current (10/1000µs): 102.7A

Power Peak Pulse: 3000W (3kW)

Operating Temperature Range: -55°C ~ 175°C (TJ)

Quality and Safety Features

AEC-Q101 qualified

Rigid temperature resilience

Compatibility

Compatible with surface mount installations

Matches devices and assemblies requiring high power TVS diode protection with DO-214AB package

Application Areas

Used extensively in automotive and industrial applications where robust protection against voltage spikes is required.

Product Lifecycle

Product Status: Active

In continuous production with no present plans for discontinuation

Several Key Reasons to Choose This Product

High energy absorption capability with 3000W peak pulse power

Reliable protection in broad temperature range (-55°C to 175°C)

Ideal for high reliability applications such as automotive

Surface mount package allows for efficient assembly processes

Certified to automotive standard (AEC-Q101), ensuring stringent quality and performance

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics SM30T21CAY

Product Attribute SM30T21CAY SM30T12AY SM30T28AY SM30T12CAY
Part Number SM30T21CAY SM30T12AY SM30T28AY SM30T12CAY
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Type Zener Zener Zener Zener
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Voltage - Clamping (Max) @ Ipp 29.2V 17V 38.9V 17V
Supplier Device Package SMC SMC SMC SMC
Applications Automotive Automotive Automotive Automotive
Voltage - Reverse Standoff (Typ) 18V 10V 24V 10V
Capacitance @ Frequency - - - -
Power - Peak Pulse 3000W (3kW) 3000W (3kW) 3000W (3kW) 3000W (3kW)
Voltage - Breakdown (Min) 20V 11.4V 26.7V 11.4V
Base Product Number SM30T21 SM30T12 SM30T28 SM30T12
Package Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR) Tape & Reel (TR)
Power Line Protection No No No No
Series Automotive, AEC-Q101, SM30TY, TRANSIL™ Automotive, AEC-Q101, SM30TY, TRANSIL™ Automotive, AEC-Q101, SM30TY, TRANSIL™ Automotive, AEC-Q101, SM30TY, TRANSIL™
Operating Temperature -55°C ~ 175°C (TJ) -55°C ~ 175°C (TJ) -55°C ~ 175°C (TJ) -55°C ~ 175°C (TJ)
Bidirectional Channels 1 - - 1
Current - Peak Pulse (10/1000µs) 102.7A 176A 77.1A 176A
Package / Case DO-214AB, SMC DO-214AB, SMC DO-214AB, SMC DO-214AB, SMC

SM30T21CAY Datasheet PDF

Download SM30T21CAY pdf datasheets and STMicroelectronics documentation for SM30T21CAY - STMicroelectronics.

HTML Datasheet
SM30TY Series.pdf
PCN Assembly/Origin
2.73KHz.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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SM30T21CAY Image

SM30T21CAY

STMicroelectronics
32D-SM30T21CAY

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