Fixed Attenuators

Modular Electronics Accessories

Photo of Fixed Attenuators

The Fixed Attenuators family (A309–A313) provides precision 50 Ω impedance-matched attenuation for nuclear instrumentation and fast signal conditioning applications.
Based on passive resistive networks, these devices ensure accurate amplitude reduction without introducing distortion or requiring external power. Their compact inline design with LEMO female connectors makes them ideal for laboratory setups, detector front-end protection, signal dynamic range matching and calibration tasks in high-frequency measurement environments.

Available attenuation values: 1 dB, 3 dB, 6 dB, 12 dB and 20 dB, allowing precise signal scaling according to system requirements.

  • Precision fixed attenuation
    Available in 1, 3, 6, 12 and 20 dB versions for accurate signal level adjustment.

  • 50 Ω impedance matched
    Optimized for minimal reflection and signal integrity preservation.

  • Passive resistive design
    No power supply required; stable and noise-free operation.

  • LEMO connectivity
    Inline female connectors for seamless integration in laboratory and detector setups.

Fixed Attenuators Models

Grid Compare
A313

A313
    A312

    A312
      A311

      A311
        A309

        A309
          A310

          A310
            Image
            Name
            Description
            Input impedance
            Max frequency
            A313

            A313

            20 dB Attenuator

            50 Ω

            > 300 MHz
            A312

            A312

            12 dB Attenuator

            50 Ω

            > 300 MHz
            A311

            A311

            6 dB Attenuator

            50 Ω

            > 300 MHz
            A309

            A309

            1 dB Attenuator

            50 Ω

            > 300 MHz
            A310

            A310

            3 dB Attenuator

            50 Ω

            > 300 MHz