Line input transformers provide the maximum possible Common Mode Rejection of unwanted signals. All models have a single Faraday shield and a 30dB magnetic shield can. Models are available in 1:1, 1:1.4, 1:2, 2:1 and 4:1 ratios. Several models are also available as octal plug-in versions. This transformer has split primary and secondary windings which can be connected for 1:2 (150:600ohm), 1:1 (600:600ohm) or 2:1 (600:150ohm) operation. Distortion, although specified for 600ohm sources, will be further reduced by lower impedances. A 30dB magnetic shield package is standard.
Ideal for use with low input impedance circuits
Wide bandwidth of -3dB at 0.4Hz and 220kHz
Recommended for levels up to +19dBu at 20Hz
Insertion loss only 1.9dB in 600ohm to 600ohm application
High common-mode rejection of 110dB at 60Hz
Audio Transformer Type - Internal Transformer
Audio Transformer Type - Line Transformer
Spec Sheet available - Yes
Operating Temperature (Maximum):
158 F
Operating Temperature (Minimum):
32 F
Maximum Bandwidth:
220 kHz (-3dB)
Impedance Ratio:
600:600, 600:150 and 150:600
Input Impedance:
745 kohm (1kHz, +4dBu, test circuit 1)
Voltage Gain:
-1.9 dB (1kHz, +4dBu, test circuit 1)
Magnitude response, ref 1 kHz:
-0.05 (20Hz, +4dBu, test circuit 1, Rs=600ohm) and -0.01 (20kHz, +4dBu, test circuit 1, Rs=600ohm) dB
Deviation from linear phase (DLP):
+0.6/-0 degree (20Hz to 20kHz, +4dBu, test circuit 1, Rs=600ohm)
Distortion (THD):
<0.001 (1kHz, +4dBu, test circuit 1, Rs=600ohm) and 0.04 (20Hz, +4dBu, test circuit 1, Rs=600ohm) %
Maximum 20Hz input level:
+19 dBu (1% THD, test circuit 1, Rs=600ohm)
Common-mode rejection ratio (CMRR) 50ohm balanced source:
110 (60Hz, test circuit 2) and 75 (3kHz, test circuit 2) dB
Common-mode rejection ratio (CMRR) 600ohm unbalanced source:
79 (60Hz, test circuit 3) and 45 (3kHz, test circuit 3) dB
Output Impedance:
745 ohm (1kHz, test circuit 1, Rs=600ohm)
Total primary DC resistance:
32 ohm (RED to ORG)
Total secondary DC resistances:
113 ohm (GRY to GRN)
Capacitance at 1kHz:
950pF (total primary to shield and case) and 1.12nF (total secondary to shield and case)
Turns Ratio:
1.000:1 any winding to any other winding
Breakdown Voltage:
250 Vrms (primary or secondary to shield and case, 60Hz, 1 minute test duration)
JT-11SSP-7MPC
- Standard Wide Bandwidth Line Input Transformer