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Signal Processing Systems : Audio Transformers : Jensen Transformers, Inc. - JT-11K8-APC

Jensen Transformers, Inc. - JT-11K8-APC

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Microphone Input Transformer with 0.07% Distortion Ratio and 1:3.4 Turns Ratio

Model: JT-11K8-APC

High performance at low cost for IC or discrete FET amplifiers
Wide bandwidth -3dB at 1.7Hz and 80kHz
10.5dB of step-up voltage gain
Input impedance of 1.24kohms for loading loss of 1.0dB
High common-mode rejection 123dB at 60Hz

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JT-11K8-APC transformer is designed to optimize performance of low voltage noise, eN, amplifiers. It is recommended only for use with FET amplifiers with no significant current noise, iN. The primary is fully balanced and its terminals may be reversed to invert polarity, if required. A 30dB magnetic shield package is standard.

High performance at low cost for IC or discrete FET amplifiers
Wide bandwidth -3dB at 1.7Hz and 80kHz
10.5dB of step-up voltage gain
Input impedance of 1.24kohms for loading loss of 1.0dB
High common-mode rejection 123dB at 60Hz

Audio Transformer Type - Input Transformer
Spec Sheet available - Yes

Operating Temperature (Maximum): 158 F
Operating Temperature (Minimum): 32 F
Maximum Bandwidth: 80 kHz (-3dB)
Impedance Ratio: 150:1.8k
Input Impedance: 1.24 kohms (1kHz, -20dBu, test circuit 1)
Voltage Gain: 10.5 dB (1kHz, -20dBu, test circuit 1)
Deviation from linear phase (DLP): +3.2/-0 ° (20Hz to 20kHz, -20dBu, test circuit 1)
Distortion (THD): 0.07 % (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: 123 dB (60Hz, test circuit 2)
Output Impedance: 2.05 kohms (1kHz, test circuit 1)
Primary DC resistances: 26.2 ohms
Secondary DC resistances: 257.5 ohms
Capacitances at 1kHz: 82 pF (secondary to shield (BLK) and case (WHI))
Turns Ratio: 1:3.465
Breakdown Voltage: 250 Vrms (primary or secondary to shield and case, 60Hz, 1 minute test duration)

Microphone Input Transformer 195 kb - Data Sheet

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