The SM91502ALE with Audio Transformers / Signal Transformers BMS xformer 1-Ch 1000V AECQ +125 C manufactured by Bourns is a one-channel audio/signal transformer. Its features give the transformer a wide frequency range of up to and beyond 20kHz and it is designed for applications in audio, test and measurement, and medical devices. It offers excellent common mode and differential mode noise immunity, with a common mode impedance of 600 Ohms and a differential mode impedance of 12 KOhms. The transformer also provides high-temperature tolerance (CQC +125°C) and is RoHS compliant. The SM91502ALE is designed to withstand high voltage up to 1000Vpk, and it is available with a minimum insulation distance is 5 mm.