Description
The Solar Electronics LISNs use a series inductor between the test sample and the
power source to provide the impedance-versus-frequency characteristic. A coaxial
connector with d.c. isolation is provided for connection to the associated frequency
selective EMI meter. The power source end of the inductor is bypassed to ground.
Due to the large current-carrying capability of some LISNs, it is not always practical
to use a switch for changing inductance values. Instead, some models are equipped
with a high current pin plug-and-jack combination for quickly connecting and disconnecting
a network and substituting another.This nylon insulated pin plug and jack arrangement
is a safety feature, well isolated from inadvertent short circuits, providing protection
to operating personnel.
Current ratings up to 200 amperes are available in 50 μH styles and 500 amperes
in 5 μH styles. See the chart on the following page.
When measurements are made in a shielded room, the LISNs intended for F.C.C. applications
will also serve for V.D.E. tests.When operating on an unfiltered power line, the
V.D.E. specifications require a filter consisting of 250 microhenry inductor and
a capacitor. This filter is included in the 24 ampere LISN, Type 9348-50-R-24-BNC,
and the 50 ampere LISN, Type 8602-50-TS-50-N.
EMI specifications require one LISN in each ungrounded power lead. Even though the
neutral is considered "ground", if it is not connected to chassis inside
the unit under test, the lead must be tested with an LISN. Therefore, use two LISNs
in d.c. or single phase a.c. applications, three LISNs for delta-connected three
phase circuits, and four LISNs for "Y" connected three phase circuits.
Application
When measuring conducted radio interference voltages from active power lines to ground,
it is essential to know the line impedance so that repeatable tests can be made
by more than one laboratory. Artificial line impedances are specified in MIL-STD-462,
V.D.E., C.I.S.P.R., C22.4, NACSEM 5100, ANSI C63.2 and other EMI specifications.
The characteristic impedance of the five microhenry and 50 microhenry LISNs brackets
the mean value of power line impedance which has been measured by independent researchers.
These two inductance values in parallel with the 50 ohms of the EMI meter fall between
the minimum and maximum line impedance values which have been measured. The mean
value would be represented by a twenty microhenry inductor in parallel with100 ohms.
|
Current |
Inductance |
Line/Ground |
Voltage |
Case |
|
|
| Type Number |
Amps |
μH |
50-60 Hz |
400 Hz |
Size* |
Circuit |
Frequency Range |
| 6330-100-PJ-50-N |
50 |
100 |
270 |
130 |
#3 |
Single |
10 KHz- 4 MHz |
| 6330-100-TS-50-N |
50 |
100 |
270 |
130 |
#3 |
Single |
10 KHz- 4 MHz |
| 6330-250-PJ-50-N |
50 |
250 |
270 |
130 |
#3 |
Single |
8 KHz- 4 MHz |
| 6330-250-TS-50-N |
50 |
250 |
270 |
130 |
#3 |
Single |
8 KHz- 4 MHz |
| 6330-600-PJ-50-N |
50 |
600 |
270 |
130 |
#3 |
Single |
7.5 KHz- 5 MHz |
| 6330-600-TS-50-N |
50 |
600 |
270 |
130 |
#3 |
Single |
7.5 KHz- 5 MHz |
| 6338-5-PJ-50-N |
50 |
5 |
270 |
130 |
#1 |
Single |
150 KHz- 65 MHz |
| 6338-5-TS-50-N |
50 |
5 |
270 |
130 |
#1 |
Single |
150 KHz- 65 MHz |
| 6338-57-PJ-50-N |
50 |
57 |
270 |
130 |
#2 |
Single |
14 KHz- 4 MHz |
| 6338-57-TS-50-N |
50 |
57 |
270 |
130 |
#2 |
Single |
14 KHz- 4 MHz |
| 6516-5-TS-10-BNC |
10 |
5 |
270 |
130 |
#5 |
Single |
150 KHz- 65 MHz |
| 6516-57-TS-10-BNC |
10 |
57 |
270 |
130 |
#6 |
Single |
14 KHz- 4 MHz |
| 7225-1 |
10 |
650 |
270 |
130 |
#1 |
Single |
10 KHz-400 MHz (useable up to 1 GHz) |
| 7333-5-PJ-50-N |
50 |
5 |
500 |
240 |
#1 |
Single |
150 KHz- 65 MHz |
| 7333-5-TS-50-N |
50 |
5 |
500 |
240 |
#1 |
Single |
150 KHz- 65 MHz |
| 7333-57-PJ-50-N |
50 |
57 |
500 |
240 |
#2 |
Single |
14 KHz- 4 MHz |
| 7333-57-TS-50-N |
50 |
57 |
500 |
240 |
#2 |
Single |
14 KHz- 4 MHz |
| 8012-50-R-24-BNC |
24 |
50 |
135 |
N/A |
#1 |
Dual |
10 KHz- 50 MHz |
| 8028-50-TS-24-BNC |
24 |
50 |
270 |
130 |
#1 |
Single |
10 KHz- 50 MHz |
| 8116-50-PJ-100-N |
100 |
50 |
270 |
130 |
#3‡ |
Single |
10 KHz- 30 MHz |
| 8116-50-TS-100-N |
100 |
50 |
270 |
130 |
#3‡ |
Single |
10 KHz- 50 MHz |
| 8116-100-PJ-100-N |
100 |
100 |
270 |
130 |
#3‡ |
Single |
10 KHz- 4 MHz |
| 8116-100-TS-100-N |
100 |
100 |
270 |
130 |
#3‡ |
Single |
10 KHz- 4 MHz |
| 8116-250-PJ-100-N |
100 |
250 |
270 |
130 |
#3‡ |
Single |
8 KHz- 4 MHz |
| 8116-250-TS-100-N |
100 |
250 |
270 |
130 |
#3‡ |
Single |
8 KHz- 4 MHz |
| 8309-5-PJ-100-N |
100 |
5 |
500 |
240 |
#3 |
Single |
150 KHz- 65 MHz |
| 8309-5-TS-100-N |
100 |
5 |
500 |
240 |
#3 |
Single |
150 KHz- 65 MHz |
| 8328-50-PJ-50-N |
50 |
50 |
270 |
130 |
#3 |
Single |
10 KHz- 50 MHz, 0.1f coupling capacitor |
| 8328-50-TS-50-N |
50 |
50 |
270 |
130 |
#3 |
Single |
10 KHz- 50 MHz, 0.1f coupling capacitor |
| 8410-250-R-24 |
24 |
250 |
270 |
130 |
#1 |
Dual |
250H choke network with AC receptacle for use
with 8012-( ) and 9252-( ) for VDE applications |
| 8602-50-PJ-50-N |
50 |
50 |
270 |
130 |
#4 |
Single |
10 KHz- 50 MHz w/ 250H choke |
| 8602-50-TS-50-N |
50 |
50 |
270 |
130 |
#4 |
Single |
10 KHz- 50 MHz w/ 250H choke |
| 8610-50-PJ-100-N |
100 |
50 |
500 |
240 |
#3‡ |
Single |
10 KHz- 30 MHz |
| 8610-50-TS-100-N |
100 |
50 |
500 |
240 |
#3‡ |
Single |
10 KHz- 30 MHz |
| 8611-50-TS-10-N |
10 |
50 |
270 |
130 |
#2 |
Single |
10 KHz- 30 MHz w/ 250H choke |
| 8615-2-TS-100-N |
100 |
2 |
270 |
130 |
#1 |
Single |
1 MHz- 1 GHz |
| 8616-5-PJ-200-N |
200 |
5 |
270 |
130 |
#3‡ |
Single |
150 KHz- 65 MHz |
| 8616-5-TS-200-N |
200 |
5 |
270 |
130 |
#3‡ |
Single |
150 KHz- 65 MHz |
| 8616-50-PJ-200-N |
200 |
50 |
270 |
130 |
#3‡ |
Single |
10 KHz- 50 MHz |
| 8616-50-TS-200-N |
200 |
50 |
270 |
130 |
#3‡ |
Single |
10 KHz- 50 MHz |
| 8902-5-TS-500-N |
500 |
5 |
500 |
240 |
#4 |
Single |
150 KHz- 1 GHz |
| 8905-50-TS-50-N |
50 |
50 |
270 |
130 |
#3 |
Single |
10 KHz-200 MHz |
| 8907-250-TS-24 |
24 |
250 |
270 |
130 |
#1 |
Dual |
250H choke network with binding posts. For use
with two 8028-( ) for VDE applications |
| 9106-1300-N-10-N |
10 |
1300 |
270 |
130 |
#1 |
Single |
10 KHz- 1 GHz |
| 9117-5-PJ-50-N |
50 |
5 |
500 |
240 |
#1 |
Single |
150 KHz- 1 GHz |
| 9117-5-TS-50-N |
50 |
5 |
500 |
240 |
#1 |
Single |
150 KHz- 1 GHz |
| 9233-50-PJ-50-N |
50 |
50 |
270 |
130 |
#3 |
Single |
10 KHz- 50 MHz, 0.25F coupling capacitor |
| 9233-50-TS-50-N |
50 |
50 |
270 |
130 |
#3 |
Single |
10 KHz- 50 MHz, 0.25F coupling capacitor |
| 9247-50-TS-50-N |
50 |
50 |
500 |
240 |
#3 |
Single |
10 KHz- 50 MHz, 0.1F coupling capacitor |
| 9252-50-R-24-BNC |
24 |
50 |
270 |
130 |
#7 |
Dual |
10 KHz- 50 MHz, 0.25F coupling capacitor |
| 9322-50-R-10-BNC |
10 |
50 |
270 |
130 |
#7 |
Dual |
10 KHz- 50 MHz |
| 9331-50-PJ-200-N |
200 |
50 |
500 |
240 |
#3‡ |
Single |
10 KHz- 50 MHz |
| 9331-50-TS-200-N |
200 |
50 |
500 |
240 |
#3‡ |
Single |
10 KHz- 50 MHz |
| 9345-5-R-10-BNC |
10 |
5 |
135 |
N/A |
#1 |
Dual |
150 KHz- 65 MHz |
| 9348-50-R-24-BNC |
24 |
50 |
270 |
130 |
#7 |
Dual |
10 KHz- 50 MHz with 250H choke |
| 9351-5-TS-200-N |
200 |
5 |
500 |
240 |
#3‡ |
Single |
100 KHz- 1 GHz, 150 impedance |
| 9403-5-TS-10-BNC |
10 |
5 |
270 |
130 |
#5 |
Single |
150 KHz- 65 MHz |
| 9408-50-R-24-BNC |
24 |
50 |
500 |
240 |
#7 |
Dual |
10 KHz- 50 MHz |
| 9409-50-R-24 |
24 |
50 |
135 |
N/A |
#2 |
Dual |
6 Output Auxiliary, no RF connector |
| 9509-50-R-24-BNC |
24 |
50 |
500 |
240 |
#7 |
Dual |
10 KHz- 50 MHz w/ 250H choke |
| 9517-50-R-10-BNC |
10 |
50 |
270 |
130 |
#7 |
Dual |
10 KHz- 50 MHz w/ 250H choke |
| 9608-50-BP-10-BNC |
10 |
50 |
500 |
240 |
#7 |
Dual |
10 KHz- 50 MHz, binding posts, no switch |
| 9615-50-R-25-BNC |
25 |
50 |
270 |
130 |
#7 |
Dual |
10 KHz- 30 MHz, air coil |
| 9622-50-BP-10-BNC |
10 |
50 |
500 |
240 |
#1 |
Single |
10 KHz- 50 MHz |
| 9623-50-TS-25-BNC |
25 |
50 |
270 |
130 |
#1 |
Single |
10 KHz- 30 MHz, air coil |
| 9629-50-TS-25-BNC |
25 |
50 |
500 |
240 |
#1 |
Single |
10 KHz- 30 MHz |
| 9632-50-TS-50-N |
50 |
50 |
270 |
130 |
#3 |
Single |
10 KHz- 50 MHz, high wattage for GM spec |
| 9702-50-TS-100-N |
100 |
50 |
270 |
130 |
call |
Single |
10 KHz- 50 MHz w/ 250H choke |
| 9706-5-TS-250-N |
250 |
5 |
270 |
130 |
#3 |
Single |
150 KHz- 65 MHz |
| 9845-50-BP-10-BNC |
10 |
50 |
135 |
N/A |
#1 |
Dual |
10 KHz- 30 MHz, binding posts, no switch |
| 9847-50-TS-50-N |
50 |
50 |
270 |
130 |
#3 |
Single |
with 20F capacitor |
| 9857-50-BP-24-BNC |
24 |
50 |
135 |
120 |
#1 |
Dual |
10 KHz- 50 MHz, binding posts, no switch |
| 9861-50-BP-24-BNC |
24 |
50 |
270 |
130 |
#7 |
Dual |
10 KHz- 50 MHz, binding posts, no switch |
| 9867-5-TS-50-N |
50 |
5 |
270 |
130 |
#2 |
Single |
10 KHz- 400 MHz w/ 10F capacitor |
| 9911-50-R-10-BNC |
10 |
50 |
135 |
N/A |
#1 |
Dual |
10 KHz- 50 MHz |
| 9913-50-TS-10-BNC |
10 |
50 |
270 |
130 |
#7 |
Dual |
10 KHz- 50 MHz, 6-32 threaded terminals |
| *Case Sizes (w x h x l) |
|
#3: 10.06" x 9.0" x 13.12" (25.72 cm x 22.86 cm x 33.34 cm) |
| Add 3" (7.62 cm) for Base
Plate |
|
#4: 7.53" x 7.63" x 18.97" (19 cm x 19.43 cm x 48.26 cm) |
| ‡ With 50 or 60 Hz Ventilating
Fan; add 7.09" (18.00 cm) |
|
#5: 3.12" x 1.75" x 3.87" (7.94 cm x 4.44 cm x 9.84 cm) |
| #1: 4.5" x 4.5" x 9.25" (11.43 cm x 11.43 cm x 23.5 cm) |
|
#6: 2.75" x 2.45" x 5.7" (6.98 cm x 6.22 cm x 14.48 cm) |
| #2: 7.0" x 7.0" x 8.25" (17.78 cm x 11.78 cm x 24.13 cm) |
|
#7: 13.06" x 7.0" x 10.06" (33.20 cm x 17.78 cm x 25.55 cm) |