1SMB5939BT3G is out of stock and can be placed on backorder.
Available Substitutes:

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MCC (Micro Commercial Components)
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MCC (Micro Commercial Components)
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Panjit International Inc.
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Unit Price: $0.66000
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Zener Diode 39 V 3 W ±5% Surface Mount SMB
Image shown is a representation only. Exact specifications should be obtained from the product data sheet.

1SMB5939BT3G

DigiKey Part Number
1SMB5939BT3GOSTR-ND - Tape & Reel (TR)
1SMB5939BT3GOSCT-ND - Cut Tape (CT)
1SMB5939BT3GOSDKR-ND - Digi-Reel®
Manufacturer
Manufacturer Part Number
1SMB5939BT3G
Description
DIODE ZENER 39V 3W SMB
Manufacturer Standard Lead Time
22 Weeks
Customer Reference
Detailed Description
Zener Diode 39 V 3 W ±5% Surface Mount SMB
Datasheet
 Datasheet
EDA/CAD Models
1SMB5939BT3G Models
Product Attributes
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Category
Current - Reverse Leakage @ Vr
1 µA @ 29.7 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)
45 Ohms
Environmental & Export Classifications
Product Questions and Answers
Additional Resources
Substitutes (3)
Part NumberManufacturerQuantity AvailableDigiKey Part NumberUnit PriceSubstitute Type
3SMAJ5939B-TPMCC (Micro Commercial Components)03SMAJ5939B-TPMSTR-ND$0.31000Similar
3SMBJ5939B-TPMCC (Micro Commercial Components)03SMBJ5939BTPMSTR-ND$0.46000Similar
1SMB5939_R1_00001Panjit International Inc.03757-1SMB5939_R1_00001TR-ND$0.66000Similar
In-Stock: 0
2,500 estimated in stock on 16-Nov-2026
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All prices are in USD
Cut Tape (CT) & Digi-Reel®
QuantityUnit PriceExt Price
1$0.36000$0.36
10$0.21200$2.12
100$0.11100$11.10
500$0.10200$51.00
1,000$0.09700$97.00
* All Digi-Reel orders will add a $7.00 reeling fee.
Tape & Reel (TR)
QuantityUnit PriceExt Price
2,500$0.07675$191.88
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.