Features: Selection of high quality material, work stable, practical convenience, and with long severing life. EMC, EMI, high voltage, stable performance. These isolation transformers are all high efficiency audio transformers. The primary and secondary windings are tightly coupled, there is sufficient pass frequency band, the original winding inductance is large, the leakage inductance is small, can reduce the influence of the hysteresis loss. Can be used in radio communication, broadcast television, automatic control, as the component of voltage amplification, power output, etc. Often used to transform voltage or transform load impedance. Specifications: Voltage ratio: 1:1 AC Impedance: 600 ohms DC Impedance: 135 ohms Power supply phase: single phase Moisture-proof mode: open Cooling mode: oil immersed air cooled Frequency characteristics: intermediate frequency Windability : Double-wire winding Core form: amorphous alloy Core shape: EI type Appearance structure: vertical Weight: 40 g Package Included: 1 x 10pcs/pack Audio Transformers