IT239

DATA SHEET Pulse Transformers IT series with single secondary winding Pulse Transformer with Single Secondary Winding Galvanic separation of drive and power circuit Approvals & Compliances Voltage resistance up to 8 kV Ignition current up to 3 A Turns ratio up to 3:1 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. Features and Benefits Technical Specifications Galvanic separation Voltage resistance up to 8 kV Nominal operating voltage Up to 3000 V Allows high potential difference voltage scaling Operating frequency 40 kHz max. 500 kHz max. for data transmission DC to 40000 Hz Optional grounded shields Ignition currents 0.1 to 3 A @ 40°C PCB through hole mounting or faston types Rise time 0.3 to 2.3 µs Custom-specific versions on request 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 Vacuum potting Very low partial discharge effects Typical Applications Gate drive circuit Power supplies Power converters Frequency converters Switching applications 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 Voltage Rise Inductance* Resistance Coupling Input/ Output capacitance connections time area time Iign Unom Up V0t tr Lp Lstr Rp Rs Ck [A] [V] [kV] [Vμs] [μs] [mH] [μH] [Ω] [Ω] [pF] Weight [g] IT 155 1:1 0.1 500 4 480 1 5 85 1.2 1.2 6 02 13 IT 245 1:1 0.1 750 4 500 1.2 8 100 1.48 1.48 10 02 6 IT 237 1:1 0.25 500 2.5 1100 1 25 35 1.9 2.2 50 02 14 IT 239 1:1 0.25 1000 6 300 2.3 3 80 0.9 0.9 5 02 13 IT 255 1:1 0.25 750 4 250 1.1 2.2 40 0.8 0.8 8 02 6 IT 258 1:1 1 750 3.2 250 0.25 2.5 3 0.62 0.75 80 02 6 IT 370 1:1 1 1000 5 4000 0.6 0.3 6 0.16 0.18 40 02 71 IT 364** 1:1 3 3000 8 5000 1.7 1.5 10 0.16 0.14 35 IT 246 2:1 0.1 750 4 200 0.4 7 35 2.1 1.1 7 02 6 IT 248 2:1 0.25 750 3.2 350 2.2 17 80 3.2 1.6 9 02 6 IT 260 3:1 0.1 500 3.2 200 0.3 12 30 2 0.8 8 02 6 05 220 * Tolerance: +50%; -30% ** Not suitable for PCB-mounting. 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). 3 Pulse Transformers Schaffner Group DATA SHEET 15. Jun 2022 Mechanical Data IT 245, IT 246, IT 248, IT 255, IT 258, IT 260 IT 239 IT 155, IT 237 IT 364 IT 370 Dimensions IT 245 IT 246 IT 248 IT 255 IT 258 IT 260 IT 239 IT 155 IT 237 IT 364 IT 370 Tol. A 17.6* 17.6* 17.6* 17.6* 17.6* 17.6* 27 27 27 50 27 ±0.2 B 16.7* 16.7* 16.7* 16.7* 16.7* 16.7* 22.5 22.5 22.5 50 32.2 ±0.2 C 11.3* 11.3* 11.3* 11.3* 11.3* 11.3* 13.7 13.7 13.7 60 23.7 ±0.2 D 5 5 5 5 5 5 5 5 5 10* 5.5 +1/-0 E 0.42 0.42 0.42 0.42 0.42 0.42 0.45 0.45 0.45 F 0.4 0.4 0.4 0.4 0.4 0.4 0.7 0.7 0.7 G 15.3 15.3 15.3 15.3 15.3 15.3 20 20 20 42 20 ±0.2 H 12.5 12.5 12.5 12.5 12.5 12.5 15 7.5 7.5 42 10 ±0.2 3.5 3.5 2.5 2.5 I L 2 2 2 2 2 2 2.5 Ø0.8 3.5 ±0.2 M N * Tolerance is ±0.1 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 connectors. 25 Ø4.2 ±0.2 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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