| Name | Physical appearance | Wiring diagram | Dimensions | Specification | |
|
Line
transformer for general purposes |
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|
SR-463A
|
 |
 |
A=16.5 B=17 C=11 |
Frequency
range
|
300Hz to 4kHz |
|
Input
signal levels
|
10mV to 1V | ||||
|
Impedance
ratio
|
600ohms : 600ohms | ||||
|
Working
attenuation
|
at 1kHz, 1V: within -1.5dB | ||||
|
Loss
deviation
|
from
300Hz to 4kHz: within +/-0.5dB |
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|
DCR
|
at 20 degrees
celcius, |
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|
Withstanding
voltage
|
between Pri.~ Sec.~ Core: AC1500V | ||||
|
Insulation
resistance
|
with
DC500V, between each component : 100M ohms and above |
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|
SMD
line transformer
|
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|
SR-631A
|
 |
 |
A=15 B=6.5 |
Frequency
range
|
300Hz to 4kHz |
|
Input
signal level
|
0dB | ||||
|
Impedance
ratio
|
600 ohms : 600 ohms |
||||
|
Working
attenuation
|
at 1kHz, 1V: within -1.5dB | ||||
|
Loss
deviation
|
from
300Hz to 4kHz: within +/-0.5dB |
||||
|
DCR
|
at
20 degrees celcius, between terminals 1 and 6: 61 ohms +/-15% between terminals 12 and 7: 71 ohms +/-15% |
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|
Withstanding
voltage
|
between Pri. and Sec.: AC1500V between Pri. to Core: AC1500V |
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|
Insulation
resistance
|
with DC500V,
between each component : |
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|
High
withstanding voltage line transformer
Complied the IEC950 Standard Using parts approved by the British Approvals Board for Telecommunications(BABT) important standards for safety. |
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|
SR-422
|
|
 |
A=20 B=13 C=13 |
Frequency
range
|
200Hz to 4kHz |
|
Maximum
input signal level
|
0dBm | ||||
|
Impedance
ratio
|
terminals
1 and 3 : 8 and 6 = 600ohms : 600ohms terminals 1 and 4 : 8 and 5 = 1200ohms : 1200ohms |
||||
|
Working
attenuation
|
at 1kHz, within -1dB | ||||
|
Loss
deviation |
from
200Hz to 4kHz: within +/-0.5dB |
||||
|
Filter
characteristic
|
Cut off frequency: 10kHz | ||||
|
DCR
|
between
terminals 1 and 3: 43 ohms +/-15% between terminals 1 and 4: 62 ohms +/-15% between terminals 8 and 6: 15 ohms +/-15% between terminals 8 and 5: 62 ohms +/-15% |
||||
|
Withstanding
voltage
|
between Pri. ~ Sec.~ Core : AC 3000V | ||||
|
Insulation
resistance
|
with
DC500V, between each component : 100M ohms and above |
||||
|
Line
transformer for ISDN
|
|||||
|
SR-673 |
 |
 |
A=14 B=14 C=13 |
Winding
ratio
|
1 : 2.5 |
|
|
|
||||
|
DCR
|
between
terminals 3 and 1: 2 ohms between terminals 4 and 6: 5 ohms |
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|
Withstanding
voltage
|
between Pri. and Sec.: AC1000V between Pri. and Core: AC1000V |
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|
Insulation
resistance
|
with DC500V,
|
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|
Line
transformer for ADSL
|
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|
SR-588
|
 |
 |
A=14 B=14 C=13 |
Frequency
range
|
10kHz to 1.1MHz |
|
Impedance
ratio
|
terminals
10 and 7 : 1 and 4 = 83 ohms : 100 ohms (terminals 9 and 8 shorted; terminals 2 and 3 shorted) |
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|
Working
attenuation
|
at
300kHz: within 500mdB |
||||
|
Loss
deviation |
from
300Hz to 4kHz: within +/-1dB |
||||
|
DCR
|
between
terminals 1 and 3: 0.78 ohms +/-15% between terminals 2 and 4: 0.80 ohms +/-15% between terminals 9 and 7: 0.82 ohms +/-15% between terminals 10 and 8: 0.62 ohms +/-15% |
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|
Withstanding
voltage
|
between primary and secondary: AC2000V |
||||
|
Insulation
resistance
|
with
DC500V, between each component : 100M ohms and above |
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