SMBJ300A is out of stock and can be placed on backorder.
Available Substitutes:

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Eaton - Electronics Division
In Stock: 0
Unit Price: $0.54000
Datasheet

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Diotec Semiconductor
In Stock: 0
Unit Price: $0.15000
Datasheet
486V Clamp 1.3A Ipp Tvs Diode Surface Mount DO-214AA (SMBJ)
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

SMBJ300A

DigiKey Part Number
18-SMBJ300ATR-ND - Tape & Reel (TR)
18-SMBJ300ACT-ND - Cut Tape (CT)
18-SMBJ300ADKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
SMBJ300A
Description
TVS DIODE 300VWM 486VC DO214AA
Manufacturer Standard Lead Time
12 Weeks
Customer Reference
Detailed Description
486V Clamp 1.3A Ipp Tvs Diode Surface Mount DO-214AA (SMBJ)
Datasheet
 Datasheet
EDA/CAD Models
SMBJ300A Models
Product Attributes
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Category
Voltage - Clamping (Max) @ Ipp
486V
Mfr
Current - Peak Pulse (10/1000µs)
1.3A
Series
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
-65°C ~ 150°C (TJ)
Unidirectional Channels
1
Mounting Type
Surface Mount
Voltage - Reverse Standoff (Typ)
300V
Package / Case
DO-214AA, SMB
Voltage - Breakdown (Min)
335V
Supplier Device Package
Associated Products
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (2)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
SMBJ300AEaton - Electronics Division0283-SMBJ300ATR-ND$0.54000Similar
P6SMB350ADiotec Semiconductor04878-P6SMB350ATR-ND$0.15000Similar
In-Stock: 0
3,000 estimated in stock on 16-Feb-2027
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$0.40000$0.40
10$0.30600$3.06
100$0.23400$23.40
500$0.20900$104.50
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
3,000$0.19400$582.00
6,000$0.18375$1,102.50
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.