Datasheet

ManualsBrandsST ManualsDiodesTrigger diode DO-35 28...36 V

DB3 /DB4 / DC34



April 1995

TRIGGER DIODES

DO 35

(Glass)

: 32V / 34V / 40V VERSIONS

LOW BREAKOVERCURRENT

FEATURES

Symbol Parameter Value Unit

th (j-a)

Junction to ambient 400 °C/W

th (j-l)

Junction-leads 150 °C/W

High reliability glass passivation insuring

parameter stability and protection against

junction contamination.

DESCRIPTION

Symbol Parameter Value Unit

P Power dissipation on printed circuit

(L = 10 mm)

Ta = 65 °C 150 mW

TRM

Repetitive peak on-state current tp = 20 µs

F= 100 Hz

Tstg

Storage and operating junction temperature range

-40to+125

°C

ABSOLUTE RATINGS (limiting values)

THERMAL RESISTANCES

1/4

Summary of content (4 pages)

PAGE 1
DB3 /DB4 / DC34  TRIGGER DIODES FEATURES VBO : 32V / 34V / 40V VERSIONS LOW BREAKOVER CURRENT DESCRIPTION DO 35 (Glass) High reliability glass passivation insuring parameter stability and protection against junction contamination.
PAGE 2
DB3 / DB4 / DC34 ELECTRICAL CHARACTERISTICS (Tj = 25°C) Symbol VBO Parameter Test Conditions Breakover voltage * Value C = 22nF ** see diagram 1 Unit DB3 DC34 DB4 MIN 28 30 35 TYP 32 34 40 MAX 36 38 45 V [I+VBOI-I-VBOI] Breakover voltage symmetry C = 22nF ** see diagram 1 MAX ±3 V I∆V± I Dynamic breakover voltage * ∆I = [IBO to IF=10mA] see diagram 1 MIN 5 V see diagram 2 MIN 5 V C = 22nF ** MAX see diagram 3 TYP 1.5 µs VB = 0.
PAGE 3
DB3 / DB4 / DC34 Fig.1 : Power dissipation versus ambient temperature (maximum values) Fig.2 : Relative variation of VBO versus junction temperature (typical values) VBO[Tj] o VBO[Tj=25 C] P (mW) 160 1.08 140 120 1.06 100 80 1.04 60 40 1.02 o 20 0 Tj( C) o Tamb ( C) o 0 10 20 30 40 50 60 70 80 90 100 110 120 130 1.00 25 50 75 100 125 Fig.3 : Peak pulse current versus pulse duration (maximum values) I TRM (A) 2 F = 100 Hz o Tj initial = 25 C 1 0.1 tp ( s) 0.
PAGE 4
DB3 / DB4 / DC34 PACKAGE MECHANICAL DATA (in millimeters) DO 35 Glass B A B note 1 E /C O E note 1 /D O O /D note 2 REF. DIMENSIONS Millimeters NOTES Inches Min. Max. Min. Max. A 3.050 4.500 0.120 0.117 B 12.7 ∅C 1.530 2.000 0.060 0.079 ∅D 0.458 0.558 0.018 0.022 E 0.500 1.27 1 - The lead diameter ∅ D is not controlled over zone E 2 - The minimum axial lengh within which the device may be placed with its leads bent at right angles is 0.59”(15 mm) 0.