The CST306-2A is a current sense transformer designed for detecting current in switching power supply applications. It features a turns count of 100, a minimum ET-product of 1000 Vµs, and a maximum DC resistance of 14.0 Ω. The transformer is rated for a primary current of 25.0 A RMS, which results in an approximate 40°C temperature rise, and it operates over a frequency range of 20 kHz to 200 kHz. Constructed with UL rated 130°C materials, this device ensures reliable and safe operation in power management circuits.