4108-20DB

Attenuators Overview

The Pomona Electronics 4108-20DB is a fixed BNC inline attenuator with a nominal attenuation of 20 dB. It operates within a frequency range of 1.1 MHz to 8 GHz and maintains a 50 Ohm impedance. The device features a power rating of 2 W and a tolerance of ±0.4 dB. Constructed for reliable performance, it supports an operating temperature range from -55°C to +102°C.

Attenuators Feature Summary

• Provides precise signal reduction via fixed 20 dB attenuation
• Ensures signal integrity through tight ±0.4 dB tolerance
• Supports high-frequency applications up to 8 GHz
• Handles continuous power loads of 2 W

Attenuators Applications

• RF test and measurement setups requiring signal level adjustment
• Protection of sensitive receiver inputs from high-power signals
• Impedance matching in 50 Ohm coaxial systems
• Laboratory equipment calibration and verification

Attenuators Procurement Notes

Verify the specific attenuation value matches the application requirement, as the 4108 series includes variants such as 6dB and 10dB. Confirm connector gender compatibility (Male-Female) for inline integration. Check RoHS compliance status if environmental regulations apply. Ensure the 2W power rating exceeds the maximum expected signal power to prevent damage.

Attenuators Selection Notes

Select this model when a significant signal reduction is required compared to lower attenuation options like the 4108-6DB. The 20dB value is suitable for protecting low-noise amplifiers or receivers. Consider the physical size and BNC interface constraints. Verify that the 8GHz bandwidth covers the entire operational spectrum of the system.

Attenuators Part Context

This component belongs to the Pomona 4108 series of connectorized attenuators. The series offers various attenuation values including 6dB, 10dB, and 20dB, all sharing the same BNC interface and general specifications. These units are designed for use in RF environments where stable attenuation and impedance control are critical.

Attenuators Replacement Considerations

Direct substitutes include other Pomona 4108-20DB units. Cross-brand replacements must match the 20dB attenuation, 50 Ohm impedance, BNC connectors, and 8GHz frequency limit. Verify power handling and tolerance specifications align with original requirements.