Line Impedance Stabilization Networks (LISNs)

LISN

Line Impedance Stabilization Network developed for conducted emission testing according to the most commonly adopted EMC specifications like CISPR, FCC, ISO, EN, RTCA DO-160 and MIL-STD 461D. 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. The LISN circuit is designed and constructed to meet the performance criteria given by these standards. Line Impedance Stabilization Network(LISN), or Artificial Mains Network (AMN), takes the main input and provides a balanced and impedance-stabilized output to power the EUT along with a port for the measuring equipment. Provides a defined, stable, impedance to the Equipment Under Test. The EUT is isolated from the power distribution network minimizing potential effects of external influences and measurements facilitating accurate, repeatable results. Providing a near 1:1 (0.5 dB insertion loss) 50Ω coaxial measurement port (type-N) for connection to a spectrum analyzer or EMI receiver.

MODEL FREQUENCY RANGE INDUCTOR RATING CURRENT RATING TEST SECIFICATION DATASHEET
LI-125A 0.15 - 30 MHz 50 uH 25 Amps FCC, CISPR, EN, ANS, NZL
LI-150A 0.15 - 30 MHz 50 uH 50 Amps FCC, CISPR, EN, ANS, NZL
LI-1100 0.15 - 30 MHz 50 uH 100 Amps CISPR 16-1-2, Ansi C63.4
LIN-120A 0.15 - 30 MHz 50 uH 20 Amps FCC, CISPR, EN, ANS, NZL
LI-215A 0.009 - 30 MHz 250 & 50 uH 15 Amps CISPR, EN
LIN-220A 0.9 - 30 MHz 250 & 50 uH 20 Amps CISPR, ANSI
LI-350 0.01- 400 MHz 5 uH 50 Amps RTCA DO-160, MIL-STD 461D
LI-400 0.01-10 MHz 50 uH 25 Amps MIL-STD 461D