Keysight 11947A Transient Limiter 9 kHz - 200 MHz

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In precompliance and standards testing such as MIL-STD-461 and EN 55011 where a spectrum analyzer is used for measurements instead of an EMI receiver, it is always a good idea to use a transient limiter. The Keysight 11947A (formerly Agilent Technologies), transient limiter protects the spectrum analyzer input from damage caused by high-level transients from line impedance stabilization networks (LISNs) during EMI testing for conducted emissions.

The Keysight 11947A Transient Limiter was previously manufactured as the Agilent 11947A Transient Limiter which replaced the HP 11947A Transient Limiter.