| Name | Physical Appearance | Winding diagram | Dimensions | Specification | |
|
SR-489
|
 |
 |
A=16.5
B=17 C=11 |
Frequency
range
|
200Hz to 4kHz |
|
Input
voltage levels |
10mV to 1V | ||||
|
Impedance
ratio
|
20k ohms : 4k ohms | ||||
|
DCR
|
at
20 degrees celcius, between terminals 1 and 3: 900 ohms +/-15% between terminals 6 and 4: 370 ohms +/-15% |
||||
|
Working
attenuation
|
at
1kHz: within -8.0dB (including electric power loss) |
||||
|
Deviation
|
within
+/-1.0 (based upon the value at 1kHz) |
||||
|
Withstanding
voltage |
between Pri. ~ Sec.~ Core: AC1500V |
||||
|
Insulation
resistance |
with
DC500V, between each component : 100M ohms and above |
||||
|
SR-831C
|
 |
|
A=16.5
B=17 C=11 |
Frequency
range
|
200Hz to 4kHz |
|
Input
voltage levels |
10mV to 1V | ||||
|
Impedance
ratio
|
20k ohms : 20k ohms | ||||
|
DCR
|
at
20 degrees celcius, between terminals 1 and 3: 510 ohms +/-15% between terminals 6 and 4: 510 ohms +/-15% |
||||
|
Working
attenuation
|
at 1kHz: within -8.0dB | ||||
|
Deviation
|
within
+/-1.0dB (based upon the value at1kHz) |
||||
|
Withstanding
voltage |
between Pri.~ Sec.~ Core: AC1500V | ||||
|
Insulation
resistance |
with
DC500V, between each component : 100M ohms and above |
||||
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