Signal Processing Systems : Audio Transformers : Jensen Transformers, Inc. - JT-110K-HPC

Microphone Input Transformer with 0.045% Distortion Ratio and 1:8.1 Turns Ratio

Model: JT-110K-HPC

Ideal for a variety of IC or discrete input amplifiers
Wide bandwidth -3dB at 1.0Hz and 100kHz
18dB of voltage gain with noise figure of 2.4dB
Input impedance of 1.4kohms for loading loss of 0.9dB
High common-mode rejection 115dB at 60Hz

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JT-110K-HPC transformer has turns ratio which optimizes the noise performance of many IC amplifiers. Its secondary source impedance varies less than 10% from 20Hz to 20kHz. The primary is fully balanced and its terminals may be reversed to invert polarity, if required. A 30dB magnetic shield package is standard.

Ideal for a variety of IC or discrete input amplifiers
Wide bandwidth -3dB at 1.0Hz and 100kHz
18dB of voltage gain with noise figure of 2.4dB
Input impedance of 1.4kohms for loading loss of 0.9dB
High common-mode rejection 115dB at 60Hz

Audio Transformer Type - Input Transformer
Spec Sheet available - Yes

Operating Temperature (Maximum): 158 F
Operating Temperature (Minimum): 32 F
Maximum Bandwidth: 100 kHz (-3dB)
Impedance Ratio: 150:10k
Input Impedance: 1.49 kohms (1kHz, -20dBu, test circuit 1)
Voltage Gain: 17.8 dB (1kHz, -20dBu, test circuit 1)
Deviation from linear phase (DLP): +4.5/-0 ° (20Hz to 20kHz, -20dBu, test circuit 1)
Distortion (THD): 0.045 % (20Hz, -20dBu, test circuit 1)
Maximum 20Hz input level: -2.0 dBu (1% THD, test circuit 1)
Common-mode Rejection Ratio (CMRR) 150ohms Balanced Source: 85 dB (60Hz, test circuit 2)
Output Impedance: 12.9 kohms (1kHz, test circuit 1)
Primary DC resistances: 28.7 ohms
Secondary DC resistances: 2.96 kohms
Capacitances at 1kHz: 166 pF (secondary to shield and case)
Turns Ratio: 1:8.1
Breakdown Voltage: 250 Vrms (primary or secondary to shield and case, 60Hz, 1 minute test duration)