TekBox TBL0550-1 5UH 50A LINE IMPEDANCE STABILISATION NETWORK DC LISN
The TekBox TBL0550-1 5µH LISN is a device required to setup conducted noise measurements of DC-powered electronic equipment. It is designed to be used for measurements in the frequency range of 150kHz to 110 MHz according to CISPR 16-1-2, CISPR-25, EN55025, MIL-STD-461F, ISO11452-4 and with limitations DO-160/ED-14G and ISO 7637-2.
The LISN is inserted into the supply line of the DUT (Device Under Test). Conducted noise which is present at the supply terminals of the DUT can be measured at the BNC connector using a spectrum analyzer or a measurement receiver. The source (supply) terminal and the DUT terminal are decoupled by a 5µH inductor.
Two TBL0550-1 in combination with the Tekbox LISN Mate enable separate measurement of common mode and differential mode noise.
The unit comes equipped with a BNC-male to N-male RG232 cable, mating connectors and ground brackets to attach it to a ground plane.
Frequency range: 100 kHz – 150 MHz
DC Resistance: < 5 mΩ
Maximum current: 50A continuous, 70 A for 3 minutes
Nominal operating voltage range: 0 – 60V DC;
Component rating: 250V
High current plug/screw terminals – male: Phoenix Contact 1998933, female: Phoenix Contact 1967375
1µF capacitor can be disconnected internally by removing a jumper
Dimensions: 120 mm x 100 mm x 225 mm (270 mm including ground brackets); weight: 1.6 kg
Spectrum Analyzer / Measurement Receiver protection:
The TBL0550-1 LISN does not contain any protective elements in the RF path. Use an external attenuator and/or limiter, if your DUT may produce harmful transients or high RF noise levels, in order to protect the spectrum analyser / measurement receiver input.
The LISN housing is connected to the negative / ground SOURCE and DUT pin of the terminal block and the ground of the RF connector. Inadvertently connecting the positive voltage to the ground pin will expose you to the risk of electric shock. Consequently, for safety reasons, the nominal operating voltage range is specified as 0V - 60V. The maximum voltage rating with respect to component rating is 250V.
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