SD250-1L

Document 130 Base/Gate Driver Transformers • Lower cost than toroidal equivalents • Frequency range of 10 - 250 kHz and up • Industry standard pin centers • VDE, IEC, UL, CSA compliant • 3750 Vrms isolation between windings • Constructed with UL approved Class 130°C insulation system (UL File E83628) Turns ratio (pri : sec) Primary winding Inductance (min)1 Leakage inductance (max)1 DCR Volt-time product Secondary winding(s) Capacitance, pri to sec (max) DCR, each section (max) SD250-1L 1:1 1.5 mH 4.0 µH 0.4 375 V-µsec 50 pF 0.75 SD250-2L 1 : 1.5 1.5 mH 4.0 µH 0.4 375 V-µsec 50 pF 2.5 SD250-3L 1:1:1 1.5 mH 4.0 µH 0.4 375 V-µsec 50 pF 0.75 SD250-4L 1 : 1.5 : 1.5 1.5 mH 4.0 µH 0.4 375 V-µsec 50 pF 2.5 SD250-1 and 250-2 1 10 Pri (drive) 5 Sec 6 SD250-3 and 250-4 7 1 5 Sec 1 6 10 Pri (drive) 1. Measured at 1 Vrms, 15.75 kHz. 2. Operating temperature range –40°C to +85°C. 3. Electrical specifications at 25°C. Sec 2 9 Recommended board layout 1 5 5 0.75 19,05 1 0.950 max 24,13 1.10 max 27,94 0.395 max 10,03 0.62 ±0.015 15,75 ±0,38 6 10 9 7 6 7 9 10 0.15 ±0.030 3,81 ±0,762 0.032 dia ref 0,813 1.10 max 27,94 0.20 5,08 0.40 10,16 0.80 20,32 0.044 dia 1,12 Weight: Termination: Packaging: 15.6 – 16.8 g Tin-silver over tin over copper 49 per tray Pins 7 and 9 are not present on SD250-1 and SD250-2 Specifications subject to change without notice. Please check our website for latest information. Document 130 Revised 10/26/06 © Coilcraft, Inc. 2006