IT243

DATA SHEET Pulse Transformers IT series with double secondary winding Pulse Transformer with Double Secondary Winding Galvanic separation of drive and power circuit Approvals & Compliances Voltage resistance up to 4 kV Ignition current up to 1 A Turns ratio up to 3:1:1 Features and Benefits Galvanic separation with secondary winding Voltage resistance up to 4 kV Allows high potential difference voltage scaling Vacuum potting Very low partial discharge effects PCB through hole mounting Custom-specific versions on request Typical Applications Gate drive circuit Technical Specifications Power supplies Power converters Nominal operating voltage Up to 500 V Frequency converters Operating frequency 40 kHz max. 500 kHz max. for data transmission DC to 40000 Hz Switching applications Ignition currents 0.025 to 1 A @ 40°C Rise time 0.4 to 4 µs Test voltage Up/50 Hz/2 s max. according to VDE 110b Max. partial discharge voltage 1.5 x Unom Temperature range (operation and storage) -25°C to +70°C (25/70/21) Flammability corresponding to UL 94 V-0 listed materials DC/DC converters Line coupling transformers in high-speed data transmission 2 Pulse Transformers Schaffner Group DATA SHEET 15. Jun 2022 Pulse Transformer Selection Table Pulse transformer Turns ratio Ignition Voltage current Iign Voltage Rise Inductance * Resistance Coupling Input/Output capacitance connections time area time Unom Up V0t tr Lp Lstr Rp Rs Ck Weight [A] [V] [kV] [Vμs] [μs] [mH] [μH] [Ω] [Ω] [pF] IT 143 1:1:1 0.025 500 4 800 0.6 15 200 3 3 10 02 [g] 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 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 * Tolerance: +50%; -30% Explanations: – tr rise time at given load resistor R and 70% of the output pulse height. – Lp primary inductance measured at 1 kHz (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 10 kHz). – The ignition current is a set peak value where the voltage drop over the coil resistance is still insignificant (mostly below 1 V). Mechanical Data IT 213 IT 243, IT 244, IT 249, IT 253 IT 242 IT 143, IT 154, IT 233, IT 234 3 Pulse Transformers Schaffner Group DATA SHEET 15. Jun 2022 IT 312, IT 313, IT 314 Dimensions 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. Ø19 17.6 17.6 17.6 17.6 17.6 27* 27* 27* 27* 25.5* 25.5* 25.5* ±0.1 16.7 16.7 16.7 16.7 16.7 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 25* 25* 25* ±0.1 D 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 0.5 0.5 0.5 F 1 0.4 0.4 0.4 0.4 0.4 0.7 0.7 0.7 0.7 0.5 0.5 0.5 G 10 15.3 15.3 15.3 15.3 15.3 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 ±0.2 I 2.1 2.1 2.1 2.1 2.1 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 3 3 3 A B * Tolerance is ±0.2 All dimensions in mm; 1 inch = 25.4 mm Tolerances according: ISO 2768-m/EN 22768-m Please visit www.schaffner.com to find more details on filter connectors. 2.5 2.5 2.5 2.5 4 Pulse Transformers Headquarters, Global Innovation and Development Switzerland Schaffner Holding AG Industrie Nord Nordstrasse 11e 4542 Luterbach +41 32 681 66 26 info@schaffner.com Schaffner Group China Schaffner EMC Ltd. 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