?2004 littelfuse, inc. e9 - 1 http://www.littelfuse.com thyristor product catalog + 1 972-580-7777 sidac (79 v to 330 v) e9 general description the sidac is a silicon bilateral voltage triggered switch with greater power-handling capabiliti es than standard diacs. upon application of a voltage exceeding the sidac breakover voltage point, the sidac switches on through a negative resistance region to a low on-state voltage. conduction continues until the current is interrupted or drops below the minimum holding current of the device. teccor?s sidacs feature glass-passivated junctions to ensure a rugged and dependable device capable of withstanding harsh environments. variations of devices covered in this data sheet are available for custom design applications. consult the factory for more informa- tion. r o h s applications ? high-voltage lamp ignitors ? natural gas ignitors ? gas oil ignitors ? high-voltage power supplies ?xenon ignitors ? overvoltage protector ? pulse generators ? fluorescent ligh ting ignitors ? hid lighting ignitors features ?rohs compliant ? ac circuit oriented ? glass-passivated junctions ? high surge current capability e9 to-92 type 70 do-214 surface mount to-202 do-15x
http://www.littelfuse.com e9 - 2 ?2004 littelfuse, inc. +1 972-580-7777 thyristor product catalog sidac data sheets specific test conditions di/dt ? critical rate-of-rise of on-state current dv/dt ? critical rate-of-rise of off-state voltage at rated v drm ; t j 100 c dv q /dt ? critical rate-of-rise of turn-off voltage at 8 khz i bo ? breakover current 50/60 hz sine wave i drm ? repetitive peak off-state current 50/60 hz sine wave; v = v drm i h ? dynamic holding current 50/60 hz sine wave; r = 100 ? i t(rms) ? on-state rms current t j 125 c 50/60 hz sine wave i tsm ? peak one-cycle surge current 50/60 hz sine wave (non- repetitive) r s ? switching resistance 50/60 hz sine wave v bo ? breakover voltage 50/60 hz sine wave v drm ? repetitive peak off-state voltage v tm ? peak on-state voltage; i t = 1 a general notes ? all measurements are made at 60 hz with a resistive load at an ambient temperature of +25 c unless otherwise specified. ? storage temperature range (t s ) is -65 c to +150 c. ? the case (t c ) or lead (t l ) temperature is measured as shown on the dimensional outline drawings in the ?package dimensions? sec- tion of this catalog. ? junction temperature range (t j ) is -40 c to +125 c. ? lead solder temperature is a maximum of +230 c for 10 s maxi- mum; 1/16" (1.59 mm) from case. electrical specification notes (1) see figure e9.5 for v bo change versus junction temperature. (2) see figure e9.6 for i bo versus junction temperature. (3) see figure e9.2 for i h versus case temperature. (4) see figure e9.13 for test circuit. (5) see figure e9.1 for more than one full cycle rating. (6) t c 90 c for to-92 sidac t c 105 c for to-202 sidacs t l 100 c for do-15x t l 90 c for do-214 (7) see figure e9.14 for clarification of sidac operation. (8) for best sidac operation, the load impedance should be near or less than switching resistance. (9) see package outlines for lead form configurations. when ordering special lead forming, add type number as suffix to part number. (10) do not use electrically conne cted mounting tab or center lead. (11) the k2401f1 sidac is designed to ensure good commutation at higher switching frequencies, as requ ired in ignitor circuits for high intensity discharge (hid) lighting. a typical circuit for a metal halide lamp ignitor is shown in figure e9.17. with proper component selection this circuit will produce th ree pulses for ignition of osram lamp types such as hqi-t70w, hqi-t150w, and hqi-t250w which require a minimum of three pulses at 4 kv magnitude and >1 s duration each at a minimum repetition rate of 3.3 khz. v-i characteristics type part no. i t(rms) v drm v bo i drm i bo i h to-92 do-15x (10) to-202 do-214 (6) (7) (8) amps volts (1) volts amps (2) amps (3) (4) mamps see ?package dimensions? section for variations. (9) max min min max max max typ max k0900e70 k0900g k0900s 1 70 79 97 5 10 60 150 k1050e70 k1050g k1050s 1 90 95 113 5 10 60 150 k1100e70 k1100g k1100s 1 90 104 118 5 10 60 150 k1200e70 k1200g k1200s 1 90 110 125 5 10 60 150 k1300e70 k1300g k1300s 1 90 120 138 5 10 60 150 k1400e70 k1400g k1400s 1 90 130 146 5 10 60 150 k1500e70 k1500g k1500s 1 90 140 170 5 10 60 150 k2000e70 k2000g k2000f1 k2000s 1 180 190 215 5 10 60 150 k2200e70 k2200g k2200f1 k2200s 1 180 205 230 5 10 60 150 k2400e70 k2400g k2400f1 K2400S 1 190 220 250 5 10 60 150 k2401f1 (11) 190 220 250 5 10 60 150 k2500e70 k2500g k2500f1 k2500s 1 200 240 280 5 10 60 150 k3000f1 1 200 270 330 5 10 60 150 pin 1 pin 2 do not use pin 3 do not use tab r s v bo v s ? () i s i bo ? () ------------------------------- - = -v +i v drm +v v s i s i h r s i drm i bo v bo v t i t (i s - i bo ) (v bo - v s ) r s = -i
?2004 littelfuse, inc. e9 - 3 http://www.littelfuse.com thyristor product catalog +1 972-580-7777 data sheets sidac lk * see electrical specification note (6). ** r ja for to-202 type 23 and type 41 is 70 c/watt. *** mounted on 1 cm 2 copper foil surface; two-ounce copper foil figure e9.1 peak surge current versus surge current duration figure e9.2 normalized dc holding current versus case/lead temperature v tm i tsm r s dv q /dt dv/dt di/dt volts max (5) amps (8) k ? volts/sec volts/sec amps/sec package 60 hz 50 hz e g f s min min min typ 1.5 1.5 1.5 20 16.7 0.1 20 1500 150 1.5 1.5 1.5 20 16.7 0.1 20 1500 150 1.5 1.5 1.5 20 16.7 0.1 20 1500 150 1.5 1.5 1.5 20 16.7 0.1 20 1500 150 1.5 1.5 1.5 20 16.7 0.1 20 1500 150 1.5 1.5 1.5 20 16.7 0.1 20 1500 150 1.5 1.5 1.5 20 16.7 0.1 20 1500 150 1.5 1.5 3 1.5 20 16.7 0.1 20 1500 150 1.5 1.5 3 1.5 20 16.7 0.1 20 1500 150 1.5 1.5 3 1.5 20 16.7 0.1 20 1500 150 3.3 20 16.7 2 42 1500 150 1.5 1.5 3 1.5 20 16.7 0.1 20 1500 150 3 20 16.7 0.1 20 1500 150 thermal resistance (steady state) r jc [r ja ] c/w (typical) * e package g package f package s package 35 [95] 18 [75] 7 [45] ** 30 *** [85] 1.0 10 100 1000 1.0 2.0 4.0 6.0 8.0 10 20 40 supply frequency: 60 hz sinusoidal load: resistive rms on-state current: i t rms maximum rated value at specified junction temperature notes: 1) blocking capability may be lost during and immediately following surge current interval. 2) overload may not be repeated until junction temperature has returned to steady-state rated value. surge current duration ? full cycles peak surge (non-repetitive) on-state current [i tsm ] ? amps 100 0 .5 1.0 2.0 1.5 -15 -40 +25 +65 +105 +125 case temperature (t c ) ? ? c i h i h (t c = 25 ? c) ratio of
http://www.littelfuse.com e9 - 4 ?2004 littelfuse, inc. +1 972-580-7777 thyristor product catalog sidac data sheets figure e9.3 repetitive peak on-state current (i trm ) versus pulse width at various frequencies figure e9.4 maximum allowable ambient temperature versus on-state current figure e9.5 normalized v bo change versus junction temperature figure e9.6 normalized repetitive peak breakover current versus junction temperature figure e9.7 on-state current versus on-state voltage (typical) figure e9.8 power dissipation (typical) versus on-state current [refer to figure e9.14 for basic sidac circuit] di/dt limit line 0.6 0.8 4 2 4 6 8 10 20 40 60 80 100 200 400 600 2 x 10-3 68 1 x 10-2 2468 1 x 10-1 24681 1 pulse base width (t o ) ? ms repetitive peak on-state current (i trm ) ? amps v bo firing current waveform non-repeate d repe tition freq uency f=5 hz f = 10 hz f = 100 hz f = 1 khz f = 5 khz f = 10 khz f = 20 khz t j = 125 oc max to i trm l/f non-repeate d 0 0.2 0.4 0.6 0.8 1.0 20 40 60 80 100 120 140 25 rms on-state current [i t(rms) ] ? amps maximum allowable ambient temperature (t a ) ? ?c current waveform: sinusoidal - 60 hz load: resistive or inductive free air rating to-92 and do-214 do-15x and to-202 t ype 23 and 41 to-202 type 1 -12 -20 0 +20 +40 +60 +80 +100 +120 -10 -8 -6 -4 -2 0 +2 +4 -40 +25 junction temperature (t j ) ? ?c percentage of v bo change ? % +140 k2xxxf1 k1xxxe k1xxxg k1xxxs k2xxxe k2xxxg k2xxxs 20 30 40 50 60 80 70 90 100 110 120 1 2 3 4 5 6 7 8 9 junction temperature (t j ) ? ? c repetitive peak breakover current (i bo ) multiplier v = v bo 130 0 0.8 1.2 1.0 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 3.2 3.4 3. 6 0 1 2 3 4 5 6 7 8 9 positive or negative instantaneous on-state voltage (v t ) ? volts positive or negative instantaneous on-state current (i t ) ? amps t l = 25 ?c to-92, do-214 and do-15x "e", "s" and "g" packages to-202 "f" package 0.2 0.4 0.6 0.8 1.0 0 0.4 0.8 1.2 1.6 0.2 0.6 1.0 1.4 1.8 2.0 2.2 rms on-state current [i t(rms) ] ? amps average on-state power dissipation [p d(av) ] ? watts "e", "s" and "g" packages to-92, do-214 and do-15x to-202 "f" package current waveform: sinusoidal load: resistive or inductive conduction angle: see basic sidac cirucit
?2004 littelfuse, inc. e9 - 5 http://www.littelfuse.com thyristor product catalog +1 972-580-7777 data sheets sidac figure e9.9 comparison of sidac versus scr for gas ignitor circuit figure e9.10 circuit (low voltage input) for gas ignition figure e9.11 typical high pressure sodium lamp firing circuit figure e9.12 xenon lamp flashing circuit figure e9.13 dynamic holding current test circuit for sidacs figure e9.14 basic sidac circuit 100-250 v ac 60 hz 100-250 v ac 60 hz scr sidac 4.7 f 100 v 10 f 50 v 24 v ac 60 hz 4.7 f 100 v ? w k1200e sidac 200 v h.v. ignitor 1.2 f 4.7 k - + - + + - sidac 120 v ac 60 hz 16 mh 3.3 k 0.47 f 400 v ballast sidac 220 v ac 60 hz 7.5 k 0.22 f ballast lamp 120 v ac 220 v ac lamp - + + - xenon lamp k2200g 10 f 2 w 120 v ac 60 hz 10 f 450 v 4 kv 0.01 f 400 v 20 m sidac 200- 400 v 100 250 v trigger transformer 20:1 100-250 v ac 60 hz scope push to test s1 switch to test in each direction 100 ? 1% device under test s1 scope indication trace stops i h i pk load 100-250 v ac 60 hz i h v bo 120-145 ? conduction angle i h i h load current v bo v bo
http://www.littelfuse.com e9 - 6 ?2004 littelfuse, inc. +1 972-580-7777 thyristor product catalog sidac data sheets figure e9.15 relaxation oscillator using a sidac figure e9.16 sidac added to protect transistor for typical transistor inductive load switching requirements figure e9.17 typical metal halide ignitor circuit v dc(in) v b0 v c i l r l r sidac (a) circuit r max v in - v bo i bo r min v in - v tm i h (min) (b) waveforms v bo v c i l t t c v ce monitor 100 mh i c monitor + - r s = 0.1 ? test circuit v bb1 =10 v + - v bb2 =0 r bb2 = 100 ? r bb1 = 150 ? 2n6127 (or equivalent) 50 ? 50 ? input (see note b) tip-47 v cc = 20 v voltage and current waveforms input voltage 0 v 5 v 0.63 a 0 sidac v bo 10 v v ce(sat) t w 3 ms (see note a) collector current collector voltage 100 ms t w note a: input pulse width is increased until i cm = 0.63 a. note b: sidac (or diac or series of diacs) chosen so that v bo is just below v ceo rating of transistor to be protected. the sidac (or diac) eliminates a reverse breakdown of the transistor in inductive switching circuits where otherwise the transistor could be destro y ed. ballast k2401f1 220 v / 240 v 50 / 60 hz metal halide lamp h.v. step-up transformer 0.1 ? 0.15 f 0.22 ? 0.33f 5 ? 6h 5.6k ? 8.2k 5w
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