SM30T21AY is out of stock and can be placed on backorder.
Available Substitutes:

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Bourns Inc.
In Stock: 0
Unit Price: $0.41606
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Eaton - Electronics Division
In Stock: 2,456
Unit Price: $1.44000
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Eaton - Electronics Division
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Unit Price: $0.55440
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Eaton - Electronics Division
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Unit Price: $0.38625
Datasheet
29.2V Clamp 102.7A Ipp Tvs Diode Surface Mount SMC
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

SM30T21AY

DigiKey Part Number
497-12177-2-ND - Tape & Reel (TR)
497-12177-1-ND - Cut Tape (CT)
497-12177-6-ND - Digi-Reel®
Manufacturer
Manufacturer Part Number
SM30T21AY
Description
TVS DIODE 18VWM 29.2VC SMC
Manufacturer Standard Lead Time
21 Weeks
Customer Reference
Detailed Description
29.2V Clamp 102.7A Ipp Tvs Diode Surface Mount SMC
Datasheet
 Datasheet
EDA/CAD Models
SM30T21AY Models
Product Attributes
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Category
Current - Peak Pulse (10/1000µs)
102.7A
Mfr
Power - Peak Pulse
3000W (3kW)
Series
Power Line Protection
No
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Operating Temperature
-55°C ~ 175°C (TJ)
Part Status
Active
Grade
Automotive
Type
Zener
Qualification
AEC-Q101
Unidirectional Channels
1
Mounting Type
Surface Mount
Voltage - Reverse Standoff (Typ)
18V
Package / Case
DO-214AB, SMC
Voltage - Breakdown (Min)
20V
Supplier Device Package
Voltage - Clamping (Max) @ Ipp
29.2V
Base Product Number
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (4)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
SMLJ18A-RBourns Inc.0118-SMLJ18A-RTR-ND$0.41606Similar
SMDJ18AHEaton - Electronics Division2,456283-SMDJ18AHTR-ND$1.44000Similar
SMDJ17CAHEaton - Electronics Division0283-SMDJ17CAHTR-ND$0.55440Similar
SMDJ18CAHEaton - Electronics Division0283-SMDJ18CAHTR-ND$0.38625Similar
In-Stock: 0
2,500 estimated in stock on 15-Mar-2027
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$1.35000$1.35
10$1.10600$11.06
100$0.86030$86.03
500$0.72918$364.59
1,000$0.59400$594.00
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
2,500$0.47828$1,195.70
5,000$0.44479$2,223.95
7,500$0.43136$3,235.20
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.