Telecomunication transformer

The activity of telecommunication transformer is impedance machining for a widely frequency application, and ensure enough power transfer to next stage, use in telephone receive set, trunk device, router etc.

Modem card, telephone receiver use, offer isolated and impedance matching, operate frequency up to 56KHz. check with your IC manufacturer to get detail character.

ADSL / VDSL /VoIP insolate transformer, request different impedance to matching difference IC，check with your IC manufacturer to get detail character

ISDN interface application, please check with your IC manufacturer to get detail character.

Parameter request when inquiry

1. Operating frequency range
2. Direct current resistance (DCR)
3. Insertion loss, defined as the measured loss through the device excluding the power
   　　division factor, calculated as the ratio of power output to power input.
4. Isolation or high hipot level and safety category ( for example, IEC 60950 )
5. 3dB bandwidth, the frequency range over which the insertion loss for telecom
   　　transformers is less than 3 dB referenced to the mid-band insertion loss.
6. Operating temperature, and maximum dimension, package type