SM4T68AY is out of stock and can be placed on backorder.
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STMicroelectronics
In Stock: 0
Unit Price: $0.43000
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Littelfuse Inc.
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Unit Price: $0.53000
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Bourns Inc.
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Eaton - Electronics Division
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Comchip Technology
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121V Clamp 19A (8/20µs) Ipp Tvs Diode Surface Mount DO-214AC (SMA)
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

SM4T68AY

DigiKey Part Number
497-10930-2-ND - Tape & Reel (TR)
497-10930-1-ND - Cut Tape (CT)
497-10930-6-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
SM4T68AY
Description
TVS DIODE 58VWM 121VC DO214AC
Manufacturer Standard Lead Time
21 Weeks
Customer Reference
Detailed Description
121V Clamp 19A (8/20µs) Ipp Tvs Diode Surface Mount DO-214AC (SMA)
Datasheet
 Datasheet
EDA/CAD Models
SM4T68AY Models
Product Attributes
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Category
Current - Peak Pulse (10/1000µs)
19A (8/20µs)
Mfr
Power - Peak Pulse
400W
Series
Power Line Protection
No
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Operating Temperature
-55°C ~ 150°C (TJ)
Part Status
Active
Grade
Automotive
Type
Zener
Qualification
AEC-Q101
Unidirectional Channels
1
Mounting Type
Surface Mount
Voltage - Reverse Standoff (Typ)
58V
Package / Case
DO-214AC, SMA
Voltage - Breakdown (Min)
64.4V
Supplier Device Package
Voltage - Clamping (Max) @ Ipp
121V
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (6)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
SMAJ58A-TRSTMicroelectronics0497-3508-2-ND$0.43000Direct
TPSMA6L58ALittelfuse Inc.0F6171TR-ND$0.53000Similar
SMAJ58ABourns Inc.1,405SMAJ58ABTR-ND$0.31000Similar
SMAJ58AHEaton - Electronics Division0283-SMAJ58AHTR-ND$0.34000Similar
TV04A580J-HFComchip Technology0TV04A580J-HF-ND$0.09563Similar
In-Stock: 0
5,000 estimated in stock on 22-Feb-2027
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$1.49000$1.49
10$0.93800$9.38
100$0.62370$62.37
500$0.48884$244.42
1,000$0.44544$445.44
2,000$0.40893$817.86
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
5,000$0.34788$1,739.40
Tariff Status: Tariff may apply if shipping to the United States. Estimated tariff costs will be calculated and displayed in the shopping cart to help you assess potential expenses.