Z1640E – OEP

The OEP Z1640E is a telecom grade audio transformer designed for impedance matching and isolation in voice and data communication circuits. Featuring a bobbin-wound construction and a core material likely composed of ferrite or laminated silicon steel, the Z1640E offers a specified impedance ratio tailored for coupling to a 600-ohm balanced line. Its primary inductance is typically in the range of several Henries, enabling efficient low-frequency signal transfer within the voice band (300 Hz to 3.4 kHz). The transformer provides galvanic isolation between primary and secondary windings, with a minimum isolation voltage rating of at least 1500Vrms. Performance characteristics include a frequency response optimized for voice frequencies, low insertion loss, and controlled harmonic distortion. The Z1640E is commonly used in telephone line interfaces, modem circuits, and other applications requiring signal coupling with electrical isolation.