SMBJ18CA is out of stock and can be placed on backorder.
Available Substitutes:

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Littelfuse Inc.
In Stock: 186,996
Unit Price: $0.57000
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Littelfuse Inc.
In Stock: 0
Unit Price: $15.36150
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Littelfuse Inc.
In Stock: 3,381
Unit Price: $0.87000
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Diodes Incorporated
In Stock: 72,970
Unit Price: $0.66000
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Bourns Inc.
In Stock: 14,955
Unit Price: $0.60000
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MCC (Micro Commercial Components)
In Stock: 4,727
Unit Price: $0.49000
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Semtech Corporation
In Stock: 3,000
Unit Price: $1.20000
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Comchip Technology
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Unit Price: $0.15939
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Comchip Technology
In Stock: 0
Unit Price: $0.17179
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Comchip Technology
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Unit Price: $0.17179
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Taiwan Semiconductor Corporation
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29.2V Clamp 20.55A Ipp Tvs Diode Surface Mount SMB
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

SMBJ18CA

DigiKey Part Number
478-7066-2-ND - Tape & Reel (TR)
478-7066-1-ND - Cut Tape (CT)
478-7066-6-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
SMBJ18CA
Description
TVS DIODE 18VWM 29.2VC SMB
Manufacturer Standard Lead Time
25 Weeks
Customer Reference
Detailed Description
29.2V Clamp 20.55A Ipp Tvs Diode Surface Mount SMB
Datasheet
 Datasheet
EDA/CAD Models
SMBJ18CA Models
Product Attributes
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Category
Current - Peak Pulse (10/1000µs)
20.55A
Mfr
Power - Peak Pulse
600W
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Power Line Protection
No
Part Status
Active
Applications
General Purpose
Type
Zener
Operating Temperature
-55°C ~ 150°C (TJ)
Bidirectional Channels
1
Mounting Type
Surface Mount
Voltage - Reverse Standoff (Typ)
18V
Package / Case
DO-214AA, SMB
Voltage - Breakdown (Min)
20V
Supplier Device Package
Voltage - Clamping (Max) @ Ipp
29.2V
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (11)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
SMBJ18CALittelfuse Inc.186,996SMBJ18CALFTR-ND$0.57000Upgrade
SMBJ18CA-HRLittelfuse Inc.0SMBJ18CA-HR-ND$15.36150Upgrade
SZ1SMB18CAT3GLittelfuse Inc.3,381F11551TR-ND$0.87000Similar
SMBJ18CA-13-FDiodes Incorporated72,970SMBJ18CA-FDITR-ND$0.66000Similar
SMBJ18CABourns Inc.14,955SMBJ18CABTR-ND$0.60000Similar
In-Stock: 0
3,000 estimated in stock on 26-Apr-2027
Request Stock Notification
Non-Cancelable/Non-Returnable
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$0.80000$0.80
10$0.49900$4.99
50$0.36520$18.26
100$0.32180$32.18
500$0.24544$122.72
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
3,000$0.18951$568.53
9,000$0.16571$1,491.39
Tariff Status: Tariff may apply if shipping to the United States. Tariff costs are calculated and will be displayed in the shopping cart.