ST Life.augmented

DB3

DIAC
  • active Active

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 fluorenscent lamp ballasts.

A new surface mount version is now available in SOT-23 package, providing reduced space and compatibility with automatic pick and place equipment.

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Errata Sheet
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Datasheet

Key Features

  • VBO: 32V and 40V
  • LOW BREAKOVER CURRENT

Design Resources

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Technical Documentation

Product Specifications

Description Version Size
pdf
DS2125: DIAC
3.1 60 KB

Application Notes

Description Version Size
pdf
AN2703: Parameter list for SCRs, TRIACs, AC switches, and DIACS
2.5 99 KB

Technical Notes & Articles

Description Version Size
pdf
TN1173: Packing information for IPAD™, protection, rectifiers, thyristors and AC Switches
3.1 333 KB

HW Model & CAD Libraries

HW Model & CAD Libraries

Description Version Size
zip
Diacs PSpice model (.lib) and symbols (.olb)
1.0 10 KB

Publications and Collaterals

Selection Guides

Description Version Size
pdf
Thyristors, Triacs, AC switches and A.S.D™ selection guide
1.0 1,717 KB

Sample & Buy

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Part Number Marketing StatusPackagePacking TypeJunction Temperature (max) Order From STUnit Price (US$)*
@ 100
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
DB3ActiveDO-35Tape And Reel125Free Samples.051Distributor reported inventory date: 2016-02-06
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA2328310000
AVNETOrder NowAMERICA150000
Newark Element14Order NowAMERICA214300
P&SOrder NowASIA/PACIFIC101
ARROWOrder NowEUROPE2070000
Farnell Element14Order NowEUROPE199171
RS COMPONENTSOrder NowEUROPE54095
RUTRONIKOrder NowEUROPE3050005000
DIGIKEYOrder NowWORLDWIDE140781
FUTUREOrder NowWORLDWIDE550005000
MOUSEROrder NowWORLDWIDE104231
Ecopack2PDF
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(*) 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
(**) 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.
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