1:1 Line Isolation Transformer

<p>These line transformers provide isolation between modems or similar devices and telephone Iines. This transformer is designed for use in voice or data transmission circuits where the line DC is diverted from the windings by a choke or solid state device. The use of this transformer should enable the equipment it is used with to comply with the relevant requirements of <STRONG>BS6305</STRONG>.</p>

Choice of through hole or ultra low profile surface mount
Matching transformer
Designed for use in data transmission circuits
Available in OEP1200 and OEP8000 versions

Products
Technical Details
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VTX-131-001 (OEP) 1200
Insertion loss	1.5dB max @ 2kHz.
Return loss	–20dB @ 200Hz-4kHz.
Isolation longitudinal	3.54kV RMS or 5kV DC.
Saturation	10V RMS 65V peak.
Balance better than	80dB 200Hz-4kHz.
Signal/noise ratio	>33dB
DC resistance	68 ±10% (NB. not to be tested with a DC current)

VTX-134-002 (OEP) 8000
Turns Ratio	1:1,
Nominal Impedance	600Ω
DCR per winding	111 (±15%)
Frequency response	±0.2dB (200Hz-4kHz)
Isolation,	50Hz >3.3kVrms min.
Return Loss	–18dB min (200Hz-4kHz)
Insertion Loss	4dB max (2kHz/600 )
Longitudinal Balance	>80dB
THD (typical)	600Hz -89dBm-100dBm
Saturation	<10Vrms, 65V peak. 50Hz