STMicroelectronics SMDB3 DIAC 36V, 1A, 3-Pin SOT-23

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Subtotal 40 units (supplied on a continuous strip)*

£11.32

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£13.60

(inc. VAT)

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40 +£0.283

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Packaging Options:
RS Stock No.:
687-0965P
Mfr. Part No.:
SMDB3
Brand:
STMicroelectronics
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Brand

STMicroelectronics

Maximum Breakover Current

0.01mA

Maximum Breakover Voltage

36V

Repetitive Peak On-State Current

1A

Repetitive Peak Off-State Current

0.01mA

Mounting Type

Surface Mount

Package Type

SOT-23

Pin Count

3

Dimensions

2.9 x 1.3 x 0.95mm

Length

2.9mm

Width

1.3mm

Maximum Operating Temperature

+125 °C

Minimum Operating Temperature

-40 °C

Height

0.95mm

DB3, DB4, SMDB3 DIAC Diodes


ST Microelectronics 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.

Features and Benefits


  • VBO: 32 V and 40 V

  • Low breakover current

  • Breakover voltage symmetry: 3V

  • ECOPACK®2 compliant

Applications


  • Triggering device for Triac or SCR based motor/ light dimmer

  • 32 V trigger device for oscillator circuit

  • Start-up triggering in lighting ballast for CFL, TL or LED lamps


The DIAC, or 'diode for alternating current', is a diode that conducts current only after its breakover voltage has been reached momentarily.

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