N-Type Fixed RF Coaxial Attenuator 3–30dB | 2W 5W DC-6GHz

N-Type Fixed RF Coaxial Attenuator — 3 to 30dB | 2W & 5W | DC to 6GHz

Engineered for precision signal management, this N-Type fixed RF coaxial attenuator delivers stable, accurate attenuation across a wide frequency range from DC to 6GHz. Whether you're working in RF testing labs, antenna systems, telecommunications infrastructure, or broadcast engineering, this attenuator provides reliable impedance matching and signal level control in a compact, rugged form factor.

Available in multiple attenuation values (3dB, 5dB, 6dB, 10dB, 15dB, 20dB, and 30dB) and power ratings (2W and 5W), this attenuator is built to handle demanding environments with an operating temperature range of -55°C to +125°C. Its N-J-K connector form ensures secure, low-loss connections in 50-ohm RF systems.

Key Specifications

• Working Frequency: DC – 6.0 GHz
• Input Impedance: 50 Ω
• VSWR (Standing Wave Ratio): <1.2 MAX
• Attenuation Values: 3 / 5 / 6 / 10 / 15 / 20 / 30 dB
• Insertion Loss Tolerance:
  • 1–10 dB: ±0.6 dB
  • 11–20 dB: ±0.8 dB
  • 21–30 dB: ±1.0 dB
• Rated Power: 2W / 5W (see variant)
• Connector Type: N-J-K (Male to Female)
• Operating Temperature: -55°C to +125°C
• Overall Dimensions: 18.5mm × 57.5mm
• Weight: 60g

Why Choose This RF Attenuator?

• ✅ Wide frequency coverage — DC to 6GHz suits a broad range of RF and microwave applications
• ✅ Multiple attenuation values — choose the exact dB level your system requires
• ✅ Low VSWR — ensures minimal signal reflection and system integrity
• ✅ Rugged construction — handles extreme temperature environments from -55°C to +125°C
• ✅ Standard N-type connectors — compatible with most RF test and measurement setups
• ✅ Compact and lightweight — easy to integrate into existing rack or bench setups

Ideal Applications

• RF signal testing and measurement
• Antenna and transmitter systems
• Telecommunications and broadcast equipment
• Laboratory and bench testing
• Wireless network infrastructure
• Amateur (HAM) radio setups

Please Note: The 5W 30dB DC-3GHz variant has been substituted with the DC-6GHz version at the same price, offering an extended frequency range at no extra cost.

Made in Mainland China.

For more information on RF coaxial connector standards and best practices in RF system design, refer to the NIST RF Connector Standards resource.

Frequently Asked Questions

Q: What is a fixed RF coaxial attenuator and what does it do?

A: A fixed RF coaxial attenuator is a passive electronic component used to reduce the amplitude (power level) of an RF signal by a precise, fixed amount — measured in decibels (dB). It is inserted inline in an RF coaxial signal path to prevent signal overload, match impedance between components, or calibrate test equipment without altering the signal's waveform or frequency.

Q: What attenuation values and power ratings are available for this N-type attenuator?

A: This N-type fixed attenuator is available in seven attenuation values: 3dB, 5dB, 6dB, 10dB, 15dB, 20dB, and 30dB. It comes in 2W and 5W power ratings, making it suitable for a variety of low-to-medium power RF applications. The frequency range extends from DC up to 6GHz.

Q: Is this attenuator compatible with standard 50-ohm RF systems?

A: Yes. This attenuator features a 50-ohm input impedance and an N-J-K (N-type Male to Female) connector configuration, making it fully compatible with standard 50-ohm RF coaxial systems used in telecommunications, test & measurement, and amateur radio applications.

Q: What does VSWR <1.2 MAX mean for my RF setup?

A: VSWR (Voltage Standing Wave Ratio) of less than 1.2 indicates that the attenuator causes very little signal reflection at its ports. A lower VSWR means better impedance matching and more efficient signal transmission, which is critical for maintaining the integrity of sensitive RF systems and minimizing power loss due to reflections.