050915 website europe tel: +49 2302 662-107 americas tel: +1 404 699-7820 asia tel: +852 26 14-1108 china tel: +86 21 6432 5146 www.wickmanngroup .com e-mail: sales@wickmann.com e-mail: service@wickmannusa.com e-mail: sales@wickmann.com.hk e-mail: sales@wickmann.cn order order order order order qty. qty. qty. qty. qty. order- order- order- order- order- t t t t t ype ype ype ype ype t t t t t erminal code packaging erminal code packaging erminal code packaging erminal code packaging erminal code packaging information information information information information number number number number number wt1812ml140 a p t v v v v v aristors aristors aristors aristors aristors tvs 1812 smd tvs 1812 smd tvs 1812 smd tvs 1812 smd tvs 1812 smd specifications specifications specifications specifications specifications packaging packaging packaging packaging packaging tape and reel t 7 inch reel (1.000 pcs.) material material material material material body: ceramic (zno) terminals: ni/sn plated (code ?p?) ag/pt/pd non plated (code ?n? on request) operating t operating t operating t operating t operating t emperature emperature emperature emperature emperature -55 to +125c solderability solderability solderability solderability solderability acc. to iec 60068-2-58 235c, 2s soldering heat resistance soldering heat resistance soldering heat resistance soldering heat resistance soldering heat resistance 260oc, 10 sec. (iec 60068-2-58) 280oc, 5 sec. (iec 60068-2-58) response t response t response t response t response t ime ime ime ime ime <0.5ns t t t t t emperature emperature emperature emperature emperature c c c c c oefficient ( oefficient ( oefficient ( oefficient ( oefficient ( v) of v) of v) of v) of v) of c c c c c lamping lamping lamping lamping lamping v v v v v oltage (vc) @ specified test current oltage (vc) @ specified test current oltage (vc) @ specified test current oltage (vc) @ specified test current oltage (vc) @ specified test current <0.01%/c power dissipation power dissipation power dissipation power dissipation power dissipation 0.3w max. standards standards standards standards standards iec 61000-4-2 mil-std-883c multilayer ceramic t multilayer ceramic t multilayer ceramic t multilayer ceramic t multilayer ceramic t ransient ransient ransient ransient ransient v v v v v oltage suppressor oltage suppressor oltage suppressor oltage suppressor oltage suppressor standard capacity standard capacity standard capacity standard capacity standard capacity features features features features features thin layer, high precise techniques lead free bi-directional clamping standard and low capacity available with nickel/tin end termination applications applications applications applications applications circuit board and esd, eft protection of: ? i/o ports ? keyboards ? lcd?s ? sensors w w w w w eblinks eblinks eblinks eblinks eblinks further infos see: further infos see: further infos see: further infos see: further infos see: www.wickmanngroup.com further technical infos see technical further technical infos see technical further technical infos see technical further technical infos see technical further technical infos see technical varistor file: varistor file: varistor file: varistor file: varistor file: www.wickmanngroup.com/download/ techvaristor.pdf specifications are subject to change without notice 4.50?0.35 3.20?0.30 1.80 0.50?0.25 typ. inductance max. cont. working voltage max. non-repetitive surge current (8/20 s) type max. non-repetitive surge energy (10/1000 s) max. clamping voltage at spec. current (8/20 s) nominal voltage at 1ma (dc) test current typ. capacitance wt1812ml050a wt1812ml090a wt1812ml120a wt1812ml140a wt1812ml180a wt1812ml220a wt1812ml260a wt1812ml300a wt1812ml380a WT1812ML450A wt1812ml560a wt1812ml680a wt1812ml850a v m(ac) (v) 4,0 6,0 9,0 11,0 14,0 17,0 20,0 25,0 30,0 35,0 40,0 50,0 60,0 v m(dc) (v) 5,5 9,0 12,0 14,0 18,0 22,0 26,0 30,0 38,0 45,0 56,0 68,0 85,0 i tm (a) 500 500 800 800 800 800 800 800 800 800 500 400 400 w tm (j) 0,8 1,0 1,8 2,0 2,3 2,5 3,0 3,6 4,2 4,5 4,8 4,5 5,8 v c (v@a) 15,5 @ 10 25,0 @ 10 30,0 @ 10 33,0 @ 10 38,0 @ 10 44,0 @ 10 54,0 @ 10 65,0 @ 10 77,0 @ 10 90,0 @ 10 110,0 @ 10 135,0 @ 10 165,0 @ 10 v n(dc)min. (v) 7,1 10,0 14,0 16,0 22,0 24,3 29,5 35,0 42,3 50,0 61,2 74,0 91,0 v n(dc)max. (v) 9,8 14,5 18,5 21,0 28,0 30,0 38,0 43,0 51,7 61,0 74,0 90,0 115,0 1khz c typ. (pf) 12900 7100 6500 4410 4000 3670 2670 2320 1960 1370 950 590 530 l typ. (nh) 2,5 2,5 2,5 2,5 2,5 2,5 2,5 2,5 2,5 2,5 2,5 2,5 2,5 maximum ratings (125c) maximum ratings (125c) maximum ratings (125c) maximum ratings (125c) maximum ratings (125c) specifications (25c) specifications (25c) specifications (25c) specifications (25c) specifications (25c) 1mhz c typ. (pf) 11200 6070 5260 3940 3500 2990 2320 1890 1680 1150 730 500 450 this product is not recommended for new designs. please refer to littelfuse series mla. dimensions (mm) dimensions (mm) dimensions (mm) dimensions (mm) dimensions (mm)
website europe tel: +49 2302 662-107 americas tel: +1 404 699-7820 asia tel: +852 26 14-1108 china tel: +86 21 6432 5146 www.wickmanngroup .com e-mail: sales@wickmann.com e-mail: service@wickmannusa.com e-mail: sales@wickmann.com.hk e-mail: sales@wickmann.cn 050915 v/i characteristics v/i characteristics v/i characteristics v/i characteristics v/i characteristics 85,0 22,0 26,0 30,0 38,0 45,0 56,0 68,0 5,5 14,0 9,0 12,0 18,0 85,0 22,0 26,0 30,0 38,0 45,0 56,0 68,0 5,5 14,0 9,0 12,0 18,0 wt1812ml850 a wt1812ml680 a wt1812ml560 a wt1812ml450 a wt1812ml380 a wt1812ml300 a wt1812ml260 a wt1812ml220 a wt1812ml180 a wt1812ml140 a wt1812ml120 a wt1812ml090 a wt1812ml050 a maximum surge current: wt1812ml050a - wt1812ml090a, wt1812ml560a maximum surge current: wt1812ml050a - wt1812ml090a, wt1812ml560a maximum surge current: wt1812ml050a - wt1812ml090a, wt1812ml560a maximum surge current: wt1812ml050a - wt1812ml090a, wt1812ml560a maximum surge current: wt1812ml050a - wt1812ml090a, wt1812ml560a v v v v v aristors aristors aristors aristors aristors tvs 1812 smd tvs 1812 smd tvs 1812 smd tvs 1812 smd tvs 1812 smd
050915 website europe tel: +49 2302 662-107 americas tel: +1 404 699-7820 asia tel: +852 26 14-1108 china tel: +86 21 6432 5146 www.wickmanngroup .com e-mail: sales@wickmann.com e-mail: service@wickmannusa.com e-mail: sales@wickmann.com.hk e-mail: sales@wickmann.cn maximum surge current: wt1812ml680a - wt1812ml850a maximum surge current: wt1812ml680a - wt1812ml850a maximum surge current: wt1812ml680a - wt1812ml850a maximum surge current: wt1812ml680a - wt1812ml850a maximum surge current: wt1812ml680a - wt1812ml850a v v v v v aristors aristors aristors aristors aristors tvs 1812 smd tvs 1812 smd tvs 1812 smd tvs 1812 smd tvs 1812 smd maximum surge current: wt1812ml120a - WT1812ML450A maximum surge current: wt1812ml120a - WT1812ML450A maximum surge current: wt1812ml120a - WT1812ML450A maximum surge current: wt1812ml120a - WT1812ML450A maximum surge current: wt1812ml120a - WT1812ML450A
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