Coilcraft, Inc. Base/Gate Driver Transformers SD250-1L

The SD250-1L Base/Gate Driver Transformer from Coilcraft, Inc. operates within a frequency range of 10 to 250 kHz and is designed with a turns ratio of 1:1. It features a primary winding inductance of a minimum of 1.5 mH and a maximum leakage inductance of 4.0 µH. The transformer has a voltage-time product of 375 V-µsec and provides 3750 Vrms isolation between primary and secondary windings for one minute, with 1500 Vrms isolation between secondaries.

The insulation system is rated UL1446 Class B (130°C), ensuring reliability in various applications. The operating temperature range is from -40°C to +85°C. The transformer has a maximum DCR of 0.4 ohms for the primary winding and 0.75 ohms for each secondary winding. Weighing between 15.6 to 16.8 grams, it is packaged with 64 units per tray and features tin-silver over tin over copper terminations.