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DB3 from ON SEMICONDUCTOR >> Specification: DIAC / SIDAC, Trigger Diode, 28 V, 36 V, µA, 2 A, DOAH, 2 Pins. The DIAC is a diode that conducts electrical current only after its breakover voltage, VBO, has References[edit]. DB3 DB4 SMDB3 DIAC, ST Datasheet ( PDF) · LittelFuse Kxxx1g Series SIDAC Data Sheet (PDF). Buy STMicroelectronics DB3 DIAC 36V, 2A, 2-Pin DO DB3. Browse our latest diacs offers. Free Next Day Delivery.

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Their behavior is similar to that of a neon lampbut it can be more precisely controlled and takes place at a lower voltage. Below this value, the diode switches back to its high-resistance, non-conducting state. Not Recommended for New Design. Support Center Video Center.

Marketing proposal for customer feedback. Diodes Solid state switches. The diode remains in conduction until the current through it drops below a value characteristic for the device, called the holding currentI H.

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Product is in design stage Target: In many applications this function is now served by metal oxide varistors MOVsparticularly for trapping voltage transients on the power mains. Product is in volume production Evaluation: Product is in volume production. From Wikipedia, the free encyclopedia.


These are designed to tolerate large surge currents for the suppression of overvoltage transients. This page was last edited on 1 Juneat Menu Products Explore our product portfolio.

How to implement a SCR or a Triac in a hybride relay application. Selectors Simulators and Models. Capacitor types Ceramic resonator Crystal oscillator Diiac Parametron Relay reed relay mercury switch.

Product is in volume production only to support customers ongoing production. Free Sample Add to cart. Once entering this conductive state going through the negative dynamic resistance region, the SIDAC continues to conduct, regardless of voltage, until the applied current falls below its rated holding current. General terms and conditions. Tools and Software Development Tools. Distributor Name Region Stock Min. This behavior is bidirectional, meaning typically the same for both directions of current.

No commitment taken to design or dizc NRND: The operation of the SIDAC is functionally similar to that of a spark gapbut is unable to reach its higher temperature ratings.

DIACs are also called “symmetrical trigger diodes” due to the symmetry of their characteristic dh3. IoT for Smart Things.


Getting started with eDesignSuite 5: In general, SIDACs have higher breakover voltages and current handling idac than DIACs, so they can be directly used for switching and not just for triggering of another switching device.

Limited Engineering samples available Preview: In other projects Wikimedia Commons. Is a positive power supply mandatory for my application, or could a negative output work also?

DB3 Bidirectional DIAC

Communications Equipment, Computers and Peripherals. Retrieved from ” https: For other uses, see DIAC disambiguation. Potentiometer digital Variable capacitor Varicap.

Who We Are Management. Product is in design feasibility stage.

DB3 – DIAC – STMicroelectronics

Media Subscription Media Contacts. Getting started with eDesignSuite. Computers and Peripherals Data Center. Key Features V BO: Please contact our sales support for information on specific devices. Product is under dizc. When breakdown occurs, the diode enters a region of negative dynamic resistanceleading to a decrease in the voltage drop across the diode and, usually, a sharp increase in current through the diode.