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Functioning as a trigger diode with a fixed voltage reference, the DB3/DB4 series can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts.
The surface mount SOT23-3L package allows compact, SMD based designs for automated manufacturing.
Key Features
- VBO : 32 V and 40 V
- Low breakover current
- Breakover voltage symmetry : 3V
- ECOPACK®2 compliant
Sample & Buy
| Part Number | Package | Packing Type | Marketing Status | Budgetary Price (US$)* | Quantity | Junction Temperature (°C) (max) | ECCN (US) | Country of Origin | Order from Distributors | Order from ST |
|---|---|---|---|---|---|---|---|---|---|---|
| DB3 | DO-35 | Tape And Reel |
Active
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0.051 | 100 | 125 | EAR99 | - | Check Availability | Get sample |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors
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Development Tools
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Picture Part number Manufacturer Description 
ST Thyristor Finder ST Thyristor product finder application for Android and iOS Part NumberThyristor product finder application for Android and iOS
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| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| DB3 |
Active
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DO-35 | Industrial | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
