modem transformer (China)

Modem Transformer



Features:

1) Low distortion, specially designed for V.90 application

2) Flat frequency, phase response

3) Optimized design for size and performance

4) Designed to reflect 600 ohms on the PRI with 397 ohms load on the SEC

5) Good Total Harmonic Distortion Characteristics

6) Customization available

7) Insulation: Class A

8) 230oC peak infrared reflow temperature rating

9) Operating temperature: -40oC to to 85oC



Electrical Specifications 25oC operating temperature -40 oC to 85oC

A) Electrical Specifications:

1) D.C. Resistance (20oC): 1-3: 115 ohms +/-8 , 6-4: 91 ohms +/-8

2) Longitudinal Balance 200 Hz – 4KHz: -80dB min.

3) Insertion Loss 1KHz, 1V: -2.0dB Max.

4) Frequency Response 200Hz – 4KHz: -38dB Min.

5) Hi-Pot: 1500VAC, 1mA, 2Sec: Pri - Sec

6) Inductance (LP) 200Hz, 1.0Vac: 1-3: 19 H Min (26 H TYP)

7) Leakage Inductance (Ls) 200Hz, 1.0V 1-3 tie (4+6): 5mH Max

8) Q value 200Hz, 100mV: 1-3: 1.2 Min

9) Turns Ratio: 1-3 : 6-4 = 1: 1 +/-1

10) Total Harmonic Distortion 300Hz, -10dBm: -86dB Max.



B) Schematics

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C) Mechanical Dimensions (Unit: inches / mm)

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Unless otherwise specified, all tolerances are ±.010 / 0.25