Overview
An RF attenuator is a passive device that reduces the power level of an RF signal without distorting its waveform. By introducing a known loss, attenuators help manage signal levels, protect sensitive components, and improve system performance. They are available in fixed, variable, and step types, and are commonly specified by attenuation value (dB), frequency range, power handling, and connector interface.
Features
Attenuation Control: Provides precise reduction of signal power in defined steps (e.g., 1 dB, 3 dB, 10 dB) or continuously adjustable
Frequency Range: Can support DC to 50+ GHz depending on the design.
Low Insertion Loss: Ensures minimal impact on signal transmission and VSWR performance.
Power Handling: Low-, medium-, and high-power models available, from a few watts to hundreds of watts.
Impedance Matching: Typically 50 ohm (some are 75 ohm), ensuring minimal reflection and low VSWR.
Types: Fixed attenuators, variable attenuators, programmable or step attenuators.
Applications
Protecting sensitive instruments from high signal levels
Adjusting signal levels in test and measurement setups
Improving impedance matching and minimizing reflections
Balancing power in RF/microwave circuits
patient monitoring systems with wireless connectivity
RF ablation, telemetry, and diagnostic tools
MRI, CT, and ultrasound imaging devices
Specification
Power | 15W |
Frequency | DC-6GHz |
VSWR | DC-6GHz≦1.25 |
Attenuation | (1-10dB)±0.8dB (15-30dB) ±1.5 dB |
Impedance | 50 ohm |
RF Connector | N-male/N-female |
Working Temperature | -55 ~ +125 ℃ |
FAQ
Sample Delivery Time
Regular models require 15 days, while some complex connectors require 25 days.
Sample Fee
Most RF connectors are CNC-machined parts and do not require mold-making.
However, each part needs to be fine-tuned on the CNC machine. Typically, a single sample costs $200.
This fee will be refunded after a 5K bulk order.
Guarantee
Brass RF connectors come with a one-year warranty.
Stainless steel connectors come with a three-year warranty.
The lifespan also depends on the contact material beryllium contacts offer better durability.
ROHS & REACH Compliance
Our products fully comply with ROHS & REACH regulations.
Does LENORF Offer Military-Grade Products?
Yes. We are honored to provide military-grade products with exceptionally stable quality.
MOQ (Minimum Order Quantity)
Regular connectors: 500 PCS
Adapters: 100 PCS
Military connectors: 100 PCS
Materials
Common materials include:
Body: Brass, stainless steel
Insulator: PTFE, PEEK
Contacts: Brass, phosphor bronze, beryllium copper
Other: Aluminum, titanium alloy
What is the difference between RF connectors and coaxial connectors?
They are often used interchangeably. However: Coaxial connector refers to the physical design (shielded cylindrical form). RF connector emphasizes its use in radio-frequency applications. Most RF connectors are coaxial.
What is “reverse polarity” (RP-SMA, RP-TNC)?
Reverse polarity means the gender of the center pin is swapped while keeping the outer body style unchanged. It was introduced to comply with regulatory requirements in Wi-Fi devices and to prevent connection with standard SMA/TNC.
What’s the lifespan of an RF connector?
Connector durability is rated in mating cycles: General-purpose connectors (BNC, SMA): 500 cycles. Precision connectors (2.92 mm, 2.4 mm): 500 cycles or less. Rugged telecom connectors (N, 7/16 DIN): 500 cycles.
Can RF connectors be reused?
Yes, but performance degrades with wear. Precision connectors (used in test equipment) should be handled carefully—damage to threads or pins increases VSWR and insertion loss.
