Description
 The 20dB 5W RF Fixed Attenuator is a high-performance passive component designed to reduce the power of an RF signal by exactly 20dB, providing a precise 100:1 power reduction. With an enhanced 5-Watt power handling capacity, it is robust enough to manage moderate power loads from amplifiers and transmitters, making it ideal for applications that exceed the limits of standard 1W or 2W units. This model is optimized for a wide frequency spectrum from DC to 6GHz, ensuring full compatibility with sub-6GHz 5G NR, Wi-Fi 6, Bluetooth, and advanced microwave bands.
The attenuator features an SMA Male to SMA Female inline configuration, utilizing a precision threaded coupling mechanism that provides high mechanical stability and excellent RF shielding. It is constructed using high-stability resistive elements and premium PTFE dielectric to ensure a flat frequency response and low Voltage Standing Wave Ratio (VSWR) across its entire bandwidth. To support the 5W rating, the device typically features a ruggedized body designed to efficiently dissipate thermal energy, ensuring consistent attenuation accuracy even during continuous operation.
Key Technical Advantages
-
Precise 20dB Attenuation: Delivers a reliable 100-fold power reduction, essential for balancing signal chains and protecting high-precision test ports from high-power saturation.
-
Broad 6GHz Bandwidth: Provides a versatile solution for modern wireless technologies, maintaining high accuracy from DC through the 6GHz spectrum.
-
Enhanced 5W Power Rating: Specifically engineered to handle moderate power levels with a thermal design that prevents the attenuation drift common in lower-rated components.
-
Excellent Impedance Matching: Frequently used as an impedance “pad” to improve the VSWR between mismatched components, reducing signal reflections and protecting expensive upstream sources.
-
Compact and Reliable SMA Interface: Features precision-machined threads designed for a secure, low-loss connection in high-density integration environments.
Key Features
-
Interface Type: SMA Male (Plug) to SMA Female (Jack).
-
Attenuation Value: 20dB (Fixed).
-
Power Rating: 5 Watts (Continuous).
-
Frequency Range: DC – 6.0 GHz.
-
Impedance: 50 Ohm (Standard).
-
Construction: Stainless Steel or Passivated Brass with PTFE dielectric.
-
Common Application: 5G and Wi-Fi 6 signal testing, amplifier output attenuation, laboratory measurements, and protection of sensitive test ports.
Technical Summary
| Parameter | Specification |
| Impedance | 50 Ohm (Nominal) |
| Frequency Range | DC – 6 GHz |
| Attenuation Accuracy | ±0.6 dB to ±0.9 dB |
| VSWR | ≤ 1.30:1 (Typical at 6 GHz) |
| Max Input Power | 5 Watts (Average) |
| Peak Power | 100 Watts (5µs pulse width) |
| Operating Temp | -55°C ~ +125°C |







Reviews
There are no reviews yet.