silicon diac bidirectional trigger diodes db3, DB4 glass passivated pnpn device do- 35 glass axial package functioning as a trigger diode with a fixed voltage reference, db3/DB4 can be used in conjunction with triacs for simplified gate control circuits or as a starting element in fluorescent lamp ballasts absolute maximum ratings (t a =25oc unless specified otherwise)) description symbol value unit power dissipation on printed circuit (l=10mm) (t a =50 o c) p tot 150 mw repetitive peak on-state current (t p =20 m m s, f=100hz) i trm 2 a storage temperature range t stg - 40 to +125 oc junction temperature range t j - 40 to +110 oc thermal resistance junction to ambient in free air 400 oc/w junction to leads 150 oc/w electrical characteristics (t j =25oc unless specified otherwise) symbol min max unit * breakover voltage v bo 28 36 v 35 45 v breakover voltage symmetry [i+v bo i-i-v bo i] + 3 v * dynamic breakover voltage i d v + i 5 v * output voltage v o 5 v * breakover current i bo 50 m a * rise time t r typ 1.5 m s * leakage current i b 10 m a * electrical characteristic applicable in both forward and reverse directions ** connected in parallel with the devices. description test conditions ** c = 22nf ** c = 22nf see diagram 1 ** c = 22nf see diagram 1 see diagram 3 v b = 0.5 v bo max see diagram 1 r th (j-a) r th (j-l) db3 DB4 d 1=[i bo to i f =10ma] see diagram 1 see diagram 2 continental device india limited data sheet page 1 of 4 continental device india limited an iso/ts 16949, iso 9001 and iso 14001 certified company db3_DB4rev_1 190402e
db3/DB4 diagram 1 :current-voltage characteristics diagram 2 :test circuit for output voltage diagram 3 : test circuit see diagram 2. adjust r for ip=0.5a power dissipation versus ambient temperature (maximum values) 0 20 40 60 80 100 120 140 160 0 10 20 30 40 50 60 70 80 90 100 110 120 tamb ( o c) p (mw) relative variation of v bo versus junction temperature (typical values) 1 1.02 1.04 1.06 1.08 1.1 25 50 75 100 tj ( o c) vbo(tj) vbo(tj=25 o c) peak pulse current versus pulse duration (maximum value) 0.01 0.1 1 10 10 100 1000 10000 tp (us) i trm (a) f=100 h z tj intial = 25 o c 220v 50 hz 10k 500k d.u.t 0.1uf r=20 ohm v o ~ 10% 90 % ip t r + i f - i f + v v - v i b i bo 0.5 v bo v bo 10ma continental device india limited data sheet page 2 of 4 db3_DB4rev_1 190402e
do-35 glass axial package do-35, 52mm taping specification note: cathode is marked by band. c d a b a all dimensions are in mm. dim a b c d min 25.40 3.05 0.46 1.70 max ? 4.15 0.56 2.29 52 mm taping specification t & a indicates axial tape and ammo packing (52 mm tape spacing). 1. 300 mm (min) leader tape on every tape. 2. no. of empty places allowed 0.25% without consecutive empty places. 3. ends of leads shall preferably not protrude beyond the tapes. 4. components shall be held sufficiently in the tape or tapes so that they can not come free in normal handling. 5. all dimensions are in mm. 1 . 0 5 m a x . 1.5 r max. 5.50 4.50 52.0 48.0 11 diodes 5 4 . 0 0 5 0 . 0 0 c e n t r e l i n e 1 . 0 5 6 . 0 5 . 0 do-35 t&a 5k/ammo box 0.88 kg/5k pcs 10" x 3.2" x 3.2" 5k 12.7" x 12.7" x 20" 125k 25 kgs package net weight/qty details standard pack inner carton box qty outer carton box qty gr wt size size packing detail on request also available in 26 mm tape do-35:- 5000 pcs./ammo pack diode ammo pack label 2 5 5 . 0 tapes 8 3 . 0 leader 6 . 0 1 . 0 1 . 0 2 . 0 5 2 . 0 6 . 0 f e e d 8 0 . 0 2 . 0 2 . 0 2 . 0 continental device india limited data sheet page 2 of 3 db3_DB4rev_1 190402e db3, DB4 do- 35 glass axial package
component disposal instructions ? 1. cdil semiconductor devices are rohs compliant, customers?are requested to please dispose as per prevailing environmental legislation of their country. db3_DB4rev_1 190402e customer notes disclaimer the product information and the selection guides facilitate selection of the cdil's semiconductor device(s) best suited for application in your product(s) as per your requirement. it is recommended that you completely review our data sheet(s) so as to confirm that the device(s) meet functionality parameters for your application. the information furnished in the data sheet and on the cdil web site/cd are believed to be accurate and reliable. cdil however, does not assume responsibility for inaccuracies or incomplete information. furthermore, cdil does not assume liability whatsoever, arising out of the application or use of any cdil product; neither does it convey any license under its patent rights nor rights of others. these products are not designed for use in life saving/support appliances or systems. cdil customers selling these products (either as individual discrete semiconductor devices or incorporated in their end products), in any life saving/support appliances or systems or applications do so at their own risk and cdil will not be responsible for any damages resulting from such sale(s). cdil strives for continuous improvement and reserves the right to change the specifications of its products without prior notice. cdil is a registered trademark of continental device india limited c-120 naraina industrial area, new delhi 110 028, india. telephone + 91-11-2579 6150, 4141 1112 fax + 91-11-2579 5290, 4141 1119 email@cdil.com www.cdilsemi.com continental device india limited data sheet page 3 of 3 2. in europe, please dispose as per eu directive 2002/96/ec on waste electrical and electronic equipment (weee). db3, DB4 do- 35
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