1SMB5921BT3G is out of stock and can be placed on backorder.
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Zener Diode 6.8 V 3 W ±5% Surface Mount SMB
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

1SMB5921BT3G

DigiKey Part Number
1SMB5921BT3GOSTR-ND - Tape & Reel (TR)
1SMB5921BT3GOSCT-ND - Cut Tape (CT)
1SMB5921BT3GOSDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Product Number
1SMB5921BT3G
Description
DIODE ZENER 6.8V 3W SMB
Manufacturer Standard Lead Time
25 Weeks
Customer Reference
Detailed Description
Zener Diode 6.8 V 3 W ±5% Surface Mount SMB
Datasheet
 Datasheet
EDA/CAD Models
1SMB5921BT3G Models
Product Attributes
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Category
Current - Reverse Leakage @ Vr
5 µA @ 5.2 V
Mfr
Voltage - Forward (Vf) (Max) @ If
1.5 V @ 200 mA
Packaging
Tape & Reel (TR)
Cut Tape (CT)
Digi-Reel®
Operating Temperature
-65°C ~ 150°C
Part Status
Active
Mounting Type
Surface Mount
Voltage - Zener (Nom) (Vz)
Package / Case
Tolerance
±5%
Supplier Device Package
SMB
Power - Max
3 W
Base Product Number
Impedance (Max) (Zzt)
2.5 Ohms
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (5)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
SMAJ5921BE3/TR13Microchip Technology0150-SMAJ5921BE3/TR13TR-ND$1.28000Similar
SMBJ4736AE3/TR13Microchip Technology0SMBJ4736AE3/TR13-ND$0.00000Similar
SMBJ5342CE3/TR13Microchip Technology0SMBJ5342CE3/TR13-ND$0.88000Similar
3SMAJ5921B-TPMCC (Micro Commercial Components)03SMAJ5921B-TPMSTR-ND$0.38000Similar
3SMBJ5921B-TPMCC (Micro Commercial Components)03SMBJ5921BTPMSTR-ND$0.39000Similar
In-Stock: 0
2,500 past due; estimated in-stock on 14-Sep-2026
Request Stock Notification
All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$0.45000$0.45
10$0.32100$3.21
100$0.16170$16.17
500$0.14328$71.64
1,000$0.11150$111.50
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
2,500$0.06900$172.50
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.