Datasheet

ManualsBrandsST ManualsDiodesTrigger diode DO-35 30...34 V

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DB3TG

October 2001 - Ed: 2A

DIAC

DO-35

■

: 32V

■

Low breakover current: 15µA max

■

Breakover voltage range: 30 to 34V

FEATURES

Functioning as a trigger diode with a fixed voltage

reference, the DB3TG can be used in conjunction

with triacs for simplified gate control circuits or as

a starting element in fluorescent lamp ballasts.

DESCRIPTION

Symbol Parameter Value Unit

TRM

Repetitive peak on-state current

tp=20µs F= 120 Hz

Tstg

Storage temperature range

Operating junction temperature range

-40to+125 °C

ABSOLUTE MAXIMUM RATINGS (limiting values)

Summary of content (4 pages)

PAGE 1
DB3TG ® DIAC FEATURES ■ ■ ■ VBO : 32V Low breakover current: 15µA max Breakover voltage range: 30 to 34V DESCRIPTION Functioning as a trigger diode with a fixed voltage reference, the DB3TG can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts.
PAGE 2
DB3TG ELECTRICAL CHARACTERISTICS (Tj = 25°C unless otherwise specified) Symbol Parameter Test Conditions Breakover voltage * VBO C = 22nF ** Value Unit MIN. 30 V TYP. 32 MAX. 34 I VBO1 - VBO2 I Breakover voltage symmetry C = 22nF ** MAX. ±2 V ∆V Dynamic breakover voltage * VBO and VF at 10mA MIN. 9 V VO Output voltage * see diagram 2 (R=20Ω) MIN. 5 V IBO Breakover current * C = 22nF ** MAX. 15 µA see diagram 3 MAX. 2 µs VR = 0.5 VBO max MAX.
PAGE 3
DB3TG Diagram 1: Voltage - current characteristic curve. Diagram 2: Test circuit. 10 kΩ 220 V + IF 500 kΩ D.U.T Rs=0 I C=0.1µF 50 Hz P Vo 10mA T410 R=20 Ω IBO IR -V + V Diagram 3: Rise time measurement. 0,5 VBO V VF lp 90 % VBO - IF 10 % tr Fig. 1: Relative variation of VBO versus junction temperature (typical values) Fig. 2: Repetitive peak pulse current versus pulse duration (maximum values). VBO [Tj] ITRM(A) VBO [Tj = 25°C] 20.0 1.08 F=120Hz Tj initial=25°C 10.0 1.06 1.
PAGE 4
DB3TG Fig. 3: Time duration while current pulse is higher 50mA versus C and Rs (typical values). tp(µs) 40 Tj=25°C 68Ω 35 30 47Ω 25 33Ω 20 15 22Ω 10 10Ω 5 0 10 C(nF) 0Ω 20 50 100 200 500 PACKAGE MECHANICAL DATA (in millimeters) DO-35 REF. C O /D A C DIMENSIONS Millimeters O / B Inches Min. Max. Min. Max. A 3.05 4.50 0.120 0.177 B 1.53 2.00 0.060 0.079 C 28.00 D 0.458 O /D 1.102 0.558 0.018 0.022 Information furnished is believed to be accurate and reliable.