rev. b / ah db3 / DB4 taitron components incorporated www.taitroncomponents.com page 1 of 5 tel: (800) - taitron (800) - 824 - 8766 (661) - 257 - 6060 fax: (800)-taitfax (800)-824-8329 (661)-257-6415 bidirectional diac trigger diode bidirectional diac trigger diode features ? low breakover current ? excellent symmetry ? very low leakage current ? trigger diode with a fixed voltage reference ? high temperature soldering guaranteed: 250c/10s/9.5mm lead length at 5 lbs tension ? rohs compliance mechanical data case: glass case do-35 terminals: plated axial leads, solderable per mil-std-750, method 2026 weight: approx. 0.13 gram maximum ratings (t ambient =25oc unless noted otherwise) symbol description db3 DB4 unit p d power dissipation on printed circuit (l=10mm) (t a =50c) 150 mw i trm repetitive peak on-state current (t p =20s, f=100hz) 2 a t j operating temperature range -40 to +110 c t stg storage temperature range -40 to +125 c r ja thermal resistance junction to ambient air 400 c/w r jl thermal resistance junction to case 150 c/w do-35
bidirectional diac trigger diode rev. b / ah db3/DB4 www.taitroncomponents.com page 2 of 5 electrical characteristics (t ambient =25oc unless noted otherwise) symbol description min. max. unit conditions db3 28 36 v *v bo * breakover voltage DB4 35 45 v ** c=22nf see fig.4 [ i+v bo i-i-v bo i ] breakover voltage symmetry -3 3 v ** c=22nf, see fig.4 ? v ** dynamic breakover voltage 5 - v ? 1=[ i bo to i f =10ma ] see fig.4 v o * output voltage 5 - v see fig.6 i bo * breakover current - 50 a ** c=22nf tr * rise time typ.1.5 s see fig.5 i b * leakage current - 10 a v b =0.5, v bo max. see fig.4 *electrical characteristic applicable in both forward and reverse directions. **connected in parallel with the devices. typical characteristics curves fig.2- typical relative variation of v bo junction temperature tj (c) v bo (tj) v bo (tj=25c) fig.1-max. power dissipation ambient tem p erature ta ( c ) pd, power dissipation (mw)
bidirectional diac trigger diode rev. b / ah db3/DB4 www.taitroncomponents.com page 3 of 5 fig.4- current?voltage characteristics fig.5- rise time measurement fig.3- peak pulse current tp (s) i trm , repetitive peak on-state current (a)
bidirectional diac trigger diode rev. b / ah db3/DB4 www.taitroncomponents.com page 4 of 5 fig.6-test circuit for output voltage dimensions in inches (mm) do-35
bidirectional diac trigger diode rev. b / ah db3/DB4 www.taitroncomponents.com page 5 of 5 how to contact us: us headquarters 28040 west harrison parkaway, valencia, ca 91355-4162 tel: (800) taitron (800) 824-8766 (661) 257-6060 fax: (800) taitfax (800) 824-8329 (661) 257-6415 email: taitron@taitroncomponents.com http:// www.taitroncomponents.com taitron components mexico, s.a .de c.v. boulevard central 5000 interior 5 parque industrial atitalaquia, hidalgo c.p. 42970 mexico tel: +52-55-5560-1519 fax: +52-55-5560-2190 taitron componets incorporated e representa??es do brasil ltda rua domingos de morais, 2777, 2.andar, sala 24 sade - s?o paulo-sp 04035-001 brazil tel: +55-11-5574-7949 fax: +55-11-5572-0052 taitron componets incorporated, shanghai representative office metrobank plaza, 1160 west yan? an road, suite 1503, shanghai, 200052, china tel: +86-21-5424-9942 fax: +86-21-5424-9931
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