unisonic technologies co., ltd us108s/n scr www.unisonic.com.tw 1 of 3 copyright ? 2011 unisonic technologies co., ltd qw-r301-012.ca scrs ? description the utc us108s/n is suitable to fit all modes of control, found in applications such as overvoltage crowbar protection, motor control circuits in power tools and kitchen aids, inrush current limiting circuits, capacitive di scharge ignition and voltage regulation circuits. ? symbol ? ordering information ordering number package pin assignment packing lead free halogen free 1 2 3 us108sl-4-ta3-t us108sg-4-ta3-t to-220 k a g tube us108sl-6-ta3-t us108sg-6-ta3-t to-220 k a g tube us108sl-8-ta3-t us108sg-8-ta3-t to-220 k a g tube us108nl-4-ta3-t US108NG-4-TA3-T to-220 k a g tube us108nl-6-ta3-t us108ng-6-ta3-t to-220 k a g tube us108nl-8-ta3-t us108ng-8-ta3-t to-220 k a g tube note: pin assignment: k: cathode g: gate a: anode
us108s/n scr unisonic technologies co., ltd 2 of 3 www.unisonic.com.tw qw-r301-012.ca ? absolute maximum rating parameter symbol rating unit repetitive peak off-state voltages us108s/n-4 v drm v rrm 400 v us108s/n-6 600 us108s/n-8 800 rms on-state current (180conduction angle) (t c = 110 ) i t ( rms ) 8 a average on-state current (180conduction angle) (t c = 110 )i t ( av ) 5 a non repetitive surge peak on-state current (t j = 25 ) t p =8.3ms us108s i tsm 73 a us108n 100 t p =10ms us108s 70 us108n 95 i2t value for fusing (t p = 10 ms ,t j = 25 ) us108s i2t 24.5 a2s us108n 45 critical rate of rise of on-state current (i g = 2 x i gt , t r 100 ns, t j = 125 , f = 60hz) di/dt 50 a/s peak gate current (t p =20 s, t j = 125 ) i gm 4 a peak reverse gate voltage us108n v rgm 5 v average gate power dissipation (t j = 125 ) p g ( av ) 1 w storage temperature t stg -40 ~ +150 junction temperature t j -40 ~ +125 note 1. absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? thermal data parameter symbol ratings unit junction to ambient ja 60 k/w junction to case jc 20 k/w ? electrical characteristics (t j =25 unless otherwise specified) us108s(sensitive) parameter symbol test conditions min typ max unit gate trigger current i gt v d = 12 v, r l =140 ? 200 a gate trigger voltage v gt v d = 12 v, r l =140 ? 0.8 v gate non-trigger voltage v gd v d = v drm , r l = 3.3k ? ? r gk = 220 t j = 125 0.1 v reverse gate voltage v rg i rg = 10 a 8 v holding current i h i t = 50ma, r gk = 1k ? 5 ma latching current i l i g = 1ma , r gk = 1k ? 6 ma circuit rate of change of off-state voltage dv/dt v d = 65 % v drm ,r gk = 220 ? 5 v/s on-state voltage v tm i tm = 16a, t p = 380 s 1.6 v threshold voltage v t0 t j = 125 0.85 v dynamic resistance r d t j = 125 46 m ? off-state leakage current i drm i rrm v drm = v rrm , r gk = 220 ? 5 a v drm = v rrm , r gk = 220 ? 1 ma
us108s/n scr unisonic technologies co., ltd 3 of 3 www.unisonic.com.tw qw-r301-012.ca ? electrical characteristics(cont.) us108n(sensitive) parameter symbol test conditions min typ max unit gate trigger current i gt v d = 12v, r l =33 ? 2 15 ma gate trigger voltage v gt v d = 12v, r l =33 ? 1.3 v gate non-trigger voltage v gd v d = v drm , r l = 3.3 k ? 0.2 v holding current i h i t = 100ma gate open 30 ma latching current i l i g = 1.2 i gt 70 ma circuit rate of change of off-state voltage dv/dt v d = 67 % v drm gate open 150 v/s on-state voltage v tm i tm = 16 a, t p = 380 s 1.6 v threshold voltage v t0 t j = 125 0.85 v dynamic resistance r d t j = 125 16 m ? off-state leakage current i drm i rrm v drm = v rrm 5 a v drm = v rrm 2 ma utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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