Pulse Transformers IT series Pulse Transformer with Double Secondary Winding n n n n Galvanic separation of drive and power circuit Voltage resistance up to 4kV Ignition current up to 1A Turns ratio up to 3:1:1 Technical specifications Nominal operating voltage: Operating frequency: Ignition currents: Rise time: Test voltage: Max. partial discharge voltage: Temperature range (operation and storage): Flammability corresponding to: Typical electrical schematic Up to 500V 40kHz max. 500kHz max. for data transmission 0.025 to 1A @ 40C 0.4 to 4.0s Up/50Hz/2s max. according to VDE 110b 1.5 x Unom -25C to +70C (25/70/21) UL 94V-0 listed materials Features and benefits IT pulse transformers are designed to offer Approvals n you galvanic isolation for transformer coupled prim. sec. sec. Typical applications Galvanic separation with secondary n Gate drive circuit winding. n Power supplies gate drives. The IT series provides negligible n Voltage resistance up to 4kV. n Power converters delays and the possibility of voltage scaling. n Allows high potential difference voltage n Frequency converters scaling. n Switching applications secondary winding for multiple gate drives. n Vacuum potting. n DC/DC converters Choosing the IT product line brings you the n Very low partial discharge effects. n Line coupling transformers in high-speed rapid availability of a standard gate drive n PCB through hole mounting. transformer. A wide selection on turns ratio, n Custom-specific versions on request. They are available with single or double ignition current and voltages are designed to offer you the desired standard product. data transmission > Components > IT series Pulse transformer selection table Pulse transformer Turns ratio Ignition Voltage Voltage current time area Up V0t Iign Unom [A] [V] [kV] [Vs] IT 143 1:1:1 0.025 500 4 800 IT 242 1:1:1 0.1 500 3.2 250 IT 243 1:1:1 0.1 500 3.2 250 IT 213 1:1:1 0.25 380 2.5 450 IT 233 1:1:1 0.25 500 4 300 IT 253 1:1:1 0.25 500 3.2 160 IT 312 1:1:1 0.25 380 2.5 1200 IT 313 1:1:1 1 380 2.5 450 Rise Inductance Resistance Coupling Input/Output time capacitance connections tr Lp Lstr Rp Rs Ck [s] [mH] [H] [] [] [pF] 0.6 15 200 3 3 10 02 0.9 2.5 75 0.75 0.75 7 02 1 2.5 85 0.8 0.8 7 02 0.4 6.5 20 1.4 1.4 40 02 1.3 3 45 0.8 0.8 7 02 1.3 1.1 45 0.55 0.55 6 02 1 21 35 2.4 2.7 30 02 0.6 3 6 0.33 0.4 27 02 IT 249 2:1:1 0.25 500 3.2 330 4 17 140 3.1 1.5 IT IT IT IT 3:1:1 3:1:1 3:1:1 3:1:1 0.1 0.1 0.25 1 500 500 500 380 4 3.2 4 2.5 600 200 280 500 1.3 0.7 1 1 75 15 17 35 180 70 40 20 7.5 2.8 2 1.6 2.2 0.9 0.7 0.7 154 244 234 314 Weight [g] 14 6 6 9 13 6 24 24 9 02 9 9 9 30 6 02 02 02 02 14 6 13 25 Explanations: - - - - tr rise time at given load resistor R and 70% of the output pulse height. Lp primary inductance measured at 1kHz (secondary coile open). Lstr 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). The ignition current is a set peak value where the voltage drop over the coil resistance is still insignificant (mostly below 1V). Mechanical data IT 213 IT 243, IT 244, IT 249, IT 253 A 1 3 H 2 1 G 4 E A 6 H 6 H 5 5 4 K I F 4 3 2 1 3 4 1 2 2 1 F D C IT 242 6 Prim. E B G C D IT 143, IT 154, IT 233, IT 234 A A L 6 L 5 L H K I 5 L H 6 5 L 3 Prim. 2 4 3 2 1 5 3 E B 6 4 Prim. 1 2 C A K 3 4 4 5 2 5 H 1 6 L L 3 Prim. 2 E B 6 I G F C 2 3 4 5 6 G D IT 312, IT 313, IT 314 H H I 1 L B 4 E F F G H D 1 C D 6 Prim. 3 5 > Components > IT series Dimensions A B C D E F G H I K L * IT 213 IT 243 IT 244 IT 249 IT 253 IT 242 IT 143 IT 154 IT 233 IT 234 IT 312 IT 313 IT 314 Tol. O19 17.6 16.7 11.3 5 0.42 0.4 15.3 7.5 2.1 5 2 17.6 16.7 11.3 5 0.42 0.4 15.3 7.5 2.1 5 2 17.6 16.7 11.3 5 0.42 0.4 15.3 7.5 2.1 5 2 17.6 16.7 11.3 5 0.42 0.4 15.3 7.5 2.1 5 2 17.6 16.7 11.3 5 0.42 0.4 15.3 7.5 2.1 5 2 27* 22.5* 13.7 5 0.45 0.7 20 7.5 3.75 27* 22.5* 13.7 5 0.45 0.7 20 7.5 3.75 27* 22.5* 13.7 5 0.45 0.7 20 7.5 3.75 27* 22.5* 13.7 5 0.45 0.7 20 7.5 3.75 2.5 2.5 2.5 25.5* 25.5* 25* 5 0.5 0.5 15 7.5 5.25 5 3 25.5* 25.5* 25* 5 0.5 0.5 15 7.5 5.25 5 3 0.1 0.1 0.1 +1/-0 2.5 25.5* 25.5* 25* 5 0.5 0.5 15 7.5 5.25 5 3 20 5 0.45 1 10 5 0.2 0.2 0.2 Tolerance is 0.2 All dimensions in mm; 1 inch = 25.4mm Tolerances according: ISO 2768-m / EN 22768-m Your local partner: To find your local partner within Schaffner's global network, please go to www.schaffner.com May 2011 Headquarters and global innovation and development center Schaffner Group Nordstrasse 11 4542 Luterbach Switzerland T +41 32 681 66 26 F +41 32 681 66 30 info@schaffner.ch www.schaffner.com Sales and application centers China Schaffner EMC Ltd. 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