40dB 50W RF Fixed Attenuator, 50 Ohm

40dB 50 watt fixed coaxial attenuator designed for in-line use, seamlessly integrates into coaxial systems, making it a versatile solution for various electronic setups. Employing advanced microstrip technology, the fixed RF attenuator effectively minimizes signal levels without introducing significant reflections or distortions.

Specification

• Model: ATO-SMAJKS-04-50W-40dB
• Frequency Range (Optional): DC~4GHz
• Standing Wave Ratio (VSWR): 1.2 (Max)
• Attenuation Value: 40dB
• Attenuation Accuracy: ±0.7dB
• Impedance: 50 Ohm
• Power: 50W@25℃
• Pick Power: 1kW (5μsce Pulse Width, 2% Duty Cycle)
• A connector Type: SMA-Male
• B connector type: SMA-Female
• Directionality: SMA Male Input, SMA Female Output
• Temperature Coefficient: ＜0.0004dB/℃
• Working Temperature: -55℃~+100℃
• Inner Conductor Material: Beryllium Bronze with Gold Plating
• Outer Conductor Material: Brass Plated with Ternary Alloy
• Heat Sink: Aluminum Alloy Black
• Insulator: PTFE

Dimension (Unit: mm)

Tips: Difference between dB and dBm when specifying attenuation

dB (decibel) and dBm (decibel-milliwatt) are units used to express the magnitude of a change in power. While both measure relative power levels, they differ in reference points. dB is a dimensionless unit representing a logarithmic ratio of two power levels. dBm, on the other hand, specifically references power relative to 1 milliwatt.

When specifying attenuation, dB is often used to denote the ratio of output power to input power, regardless of the absolute power levels. dBm, however, provides a direct measurement of power in relation to 1 milliwatt. For attenuation expressed in dBm, it indicates the difference between the input and output power levels in milliwatts.

In summary, dB is a relative measure, and dBm is an absolute measure referenced to 1 milliwatt, making dBm more suitable for specifying power levels in practical applications.