pulse transformers it series pulse transformer with double secondary winding approvals n galvanic separation of drive and power circuit n voltage resistance up to 4kv n ignition current up to 1a n turns ratio up to 3:1:1 typical applications it pulse transformers are designed to offer you galvanic isolation for transformer coupled gate drives. the it series provides negligible delays and the possibility of voltage scaling. they are available with single or double secondary winding for multiple gate drives. choosing the it product line brings you the rapid availability of a standard gate drive transformer. a wide selection on turns ratio, ignition current and voltages are designed to offer you the desired standard product. n galvanic separation with secondary winding. n voltage resistance up to 4kv. n allows high potential difference voltage scaling. n vacuum potting. n very low partial discharge effects. n pcb through hole mounting. n custom-specific versions on request. n gate drive circuit n power supplies n power converters n frequency converters n switching applications n dc/dc converters n line coupling transformers in high-speed data transmission features and benefits technical specifications nominal operating voltage: up to 500v operating frequency: 40khz max. 500khz max. for data transmission ignition currents: 0.1 to 1a @ 40c rise time: 0.4 to 4.0s test voltage: u p /50hz/2s max. according to vde 110b max. partial discharge voltage: 1.5 x u nom temperature range (operation and storage): -25c to +70c (25/70/21) flammability corresponding to: ul 94v-0 listed materials typical electrical schematic prim. sec. sec.
> components > it series explanations: C t r rise time at given load resistor r and 70% of the output pulse height. C l p primary inductance measured at 1khz (secondary coile open). C l str stray inductance measured at the secondary side, short circuit at the primary side. if there are several secondary coils only one at the time is connected (measuring frequency 10khz). C the ignition current is a set peak value where the voltage drop over the coil resistance is still insignificant (mostly below 1v). pulse transformer selection table it 143 1:1:1 0.025 500 4 800 0.6 15 200 3 3 10 02 14 it 153 1:1:1 0.1 500 4 600 1.4 9 120 1.5 1.5 10 02 14 it 242 1:1:1 0.1 500 3.2 250 0.9 2.5 75 0.75 0.75 7 02 6 it 243 1:1:1 0.1 500 3.2 250 1 2.5 85 0.8 0.8 7 02 6 it 213 1:1:1 0.25 380 2.5 450 0.4 6.5 20 1.4 1.4 40 02 9 it 233 1:1:1 0.25 500 4 300 1.3 3 45 0.8 0.8 7 02 13 it 253 1:1:1 0.25 500 3.2 160 1.3 1.1 45 0.55 0.55 6 02 6 it 312 1:1:1 0.25 380 2.5 1200 1 21 35 2.4 2.7 30 02 24 it 313 1:1:1 1 380 2.5 450 0.6 3 6 0.33 0.4 27 02 24 it 249 2:1:1 0.25 500 3.2 330 4 17 140 3.1 1.5 9 02 6 it 154 3:1:1 0.1 500 4 600 1.3 75 180 7.5 2.2 9 02 14 it 244 3:1:1 0.1 500 3.2 200 0.7 15 70 2.8 0.9 9 02 6 it 234 3:1:1 0.25 500 4 280 1 17 40 2 0.7 9 02 13 it 314 3:1:1 1 380 2.5 500 1 35 20 1.6 0.7 30 02 25 pulse transformer turns ratio ignition voltage voltage rise inductance resistance coupling input/output weight current time area time capacitance connections i ign u nom u p v 0t t r l p l str r p r s c k [a] [v] [kv] [vs] [s] [mh] [h] [?] [?] [pf] [g] mechanical data it 213 it 243, it 244, it 249, it 253 c d f a h g e 6 1 2 4 prim. h h 3 5 5 2 1 4 3 6 it 143, it 153, it 154, it 233, it 234 l c d f a h g e l b 1 3 2 6 prim. i 5 4 2 4 1 5 6 3 h it 312, it 313, it 314 k c d f a h g e l b 3 2 4 5 prim. i l h 1 6 4 5 3 2 6 1 l c d f a h g e l b 6 4 5 1 prim. k 2 3 5 3 6 2 1 4 i it 242 l c d f a h g e l b 6 4 5 1 prim. k 2 3 5 3 6 2 1 4 i
> components > it series your local partner: to find your local partner within schaffners global network, please go to www.schaffner.com april 2007 it 213 it 243 it 244 it 249 it 253 it 242 it 143 it 153 it 154 it 233 it 234 it 312 it 313 it 314 tol. dimensions a ?19 17.6 17.6 17.6 17.6 17.6 27* 27* 27* 27* 27* 25.5* 25.5* 25.5* 0.1 b 16.7 16.7 16.7 16.7 16.7 22.5* 22.5* 22.5* 22.5* 22.5* 25.5* 25.5* 25.5* 0.1 c 20 11.3 11.3 11.3 11.3 11.3 13.7 13.7 13.7 13.7 13.7 25* 25* 25* 0.1 d 5 5 5 5 5 5 5 5 5 5 5 5 5 5 +1/-0 e 0.45 0.42 0.42 0.42 0.42 0.42 0.45 0.45 0.45 0.45 0.45 0.5 0.5 0.5 f 1 0.4 0.4 0.4 0.4 0.4 0.7 0.7 0.7 0.7 0.7 0.5 0.5 0.5 g 10 15.3 15.3 15.3 15.3 15.3 20 20 20 20 20 15 15 15 h 5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 7.5 0.2 i 2.1 2.1 2.1 2.1 2.1 3.75 3.75 3.75 3.75 3.75 5.25 5.25 5.25 0.2 k 5 5 5 5 5 5 5 5 0.2 l 2 2 2 2 2 2.5 2.5 2.5 2.5 2.5 3 3 3 * tolerance is 0.2 all dimensions in mm; 1 inch = 25.4mm tolerances according: iso 2768 / en 22768
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