Transient Limiter for Protecting Spectrum Analyzer

LIT-930A - For conducted emissions testing with LISN

9 kHz to 30 MHz

Com-Power LIT-930A transient limiter, 9 kHz–30 MHz, 10 dB—protects EMI receiver during LISN tests

Transient Limiter for Protecting Spectrum Analyzer

LIT-930A — Transient Limiter (9 kHz–30 MHz)

  • Shields instruments during low-frequency conducted tests that start at 9 kHz, covering the full 9 kHz–30 MHz band.

  • Installs inline from LISN to receiver to clamp power-up surges, line disturbances, and long-duration inrush events.

  • Streamlines setups by replacing a separate 10 dB pad, delivering consistent input levels across operators and shifts.

  • Cuts overload risk from out-of-band signals and mains-related energy, improving analyzer linearity and detection of real emissions.

  • Well-suited for motors, UPS, and large power supplies, where low-frequency noise and start-up transients are common.

  • Preserves a clean 50 Ω measurement chain with rugged N-type connectors for daily lab use.

  • Enhances instrument longevity and test throughput in both R&D and production environments.

Frequently bought together
  • Frequency Range: 9 kHz - 30 MHz
  • For conducted emissions testing with LISN
  • Protects spectrum analyzer input
  • 10 dB In-band Attenuation
  • Excellent VSWR
  • Frequency range: 9 kHz - 30 MHz
  • Insertion loss: 10 dB +1.5 / -0.5 dB*
  • Max. input level: 4 Watts CW (+36 dBm)

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