SM4T21AY

Part No :: SM4T21AY

Manufacturer: STMicroelectronics

VIGOR # :: 1922435

Description: TVS DIODE 18V 39.3V SMA

Catalog: TVS - Diodes

DataSheet: SM4T21AY PDF

Country of origin: -

Date code: -

SM4T21AY Specifications

Type	Description
Series:	Automotive, AEC-Q101, SM4TY, TRANSIL™
Package:	Tape & Reel (TR)Cut Tape (CT)
Part Status:	Active
Type:	Zener
Unidirectional Channels:	1
Bidirectional Channels:	-
Voltage - Reverse Standoff (Typ):	18V
Voltage - Breakdown (Min):	20V
Voltage - Clamping (Max) @ Ipp:	39.3V
Current - Peak Pulse (10/1000µs):	59A (8/20µs)
Power - Peak Pulse:	400W
Power Line Protection:	No
Applications:	Automotive
Capacitance @ Frequency:	-
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	DO-214AC, SMA
Supplier Device Package:	SMA (DO-214AC)

Please confirm the specifications of the products when ordering.
MOQ means the minimum order quantity required to purchase each parts.
If you have special order instructions,please note it on the ordering pages.
The Pre-Shipment Inspection (PSI) will be applied.
You can email us to change the order details before shipment.
Orders cannot be canceled after shipping the packages.

TT in advance (bank transfer), Credit Card, PayPal can be chosen.
Cash transfer only. (Transfer with checks and bills are not accepted.)
Customer is responsible for paying all possible charges,including sales tax, VAT and customs charges,etc.
If you need the detailed invoice or tax ID,please email us.

FedEx, DHL, and UPS can be selected.
You can select whether to charge shipping fee by your shipping account or to charge by our side.
Please confirm with the logistics company in advance if you are in a remote area. (It may cost extra fees (35-50 USD) for delivery at those areas.)
The shopping cart will automatically calculate the shipping cost.
Delivery time: At the same day (Order deadline is 2pm, HK Time).
Delivery date: usually 2 to 7 working days.
It is unable to appoint a date of delivery.
Tracking number will be sent once your order has been shipped. (It may take up to 24 hours before carriers display the info.)

In Stock: 4390

Shipped from

HK warehouse

Expected Shipping Date

Mar 29 - Apr 02 2026

Pricing(USD)

Quantity	Unit Price	Ext. Price
1	~~$0.8700~~	~~$0.87~~
5000	~~$0.2740~~	~~$1 370.25~~
10000	~~$0.2707~~	~~$2 706.70~~

Current price of SM4T21AY is for reference only, if you want to get best price, please submit a inquiry or direct email to our sales team sales@Vigorcomp.com

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SM4T21AY

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Pricing(USD)