Ultra-Stable, High-Power RF Termination

Oil-Cooled
15 kW Series RF Loads

The Bird 8941 series is a high-power, 50-ohm coaxial RF load designed for ultra-stable termination at 13.56 MHz and other low-frequency applications from DC to 28 MHz. With a continuous power rating of 15 kW, it serves as a reliable reject or dummy load in industrial, scientific, and broadcast environments.

The oil-dielectric cooling system, combined with a blower assembly and integrated axial fans, ensures consistent heat dissipation and performance.

Compare Models Manual

Why Choose the 8941 Series?

Precision Termination at 13.56 MHz

Engineered for stability at 13.56 MHz—the industry-standard ISM frequency used in plasma etch, deposition, and wafer processing systems—where signal integrity and process consistency are critical

15 kW Continuous Power Handling

Supports high-power RF generators found in semiconductor fabs, with oil-dielectric and forced-air cooling to ensure consistent thermal performance and uptime during demanding runs.

Low VSWR from DC to 28 MHz

Provides clean, low-reflection termination across the operating band, reducing power mismatch risks and helping protect sensitive RF subsystems in advanced semiconductor tools.

Model Selection

Explore all available models in the 8941 Series

Model Number

8941-115SC13 request_button

DC to 20 MHz @ 1.15:1 max

QC Type, 7/16 DIN (f)

43 in x 9.5 in x 33.4 in
(1092 x 241 x 847 mm)

236 lbs (107 kg)

Get Quote

8941-230SC13 request_button

DC to 20 MHz @ 1.15:1 max

QC Type, 7/16 DIN (f)

43 in x 9.5 in x 33.4 in
(1092 x 241 x 847 mm)

236 lbs (107 kg)

Get Quote

Swipe for more

Which 15 kW RF Load Fits You?

Use Case

Calibration in plasma-based process control (e.g. 13.56 MHz)

SC13 Series

Ultra-stable VSWR (<1.05) with <0.1 dB variation, zero warm-up, and optimized for use with Bird sensors

Lab or metrology work requiring repeatability

SC13 Series

Passive design ensures measurement consistency over time with no moving parts or cooling delays

Need for instant-on performance in cleanroom or precision environments

SC13 Series

Fanless convection cooling avoids contamination and delivers reliable results from the first reading

Swipe for more

Get Expert Help

Why RF Pros Choose Bird Loads

Accuracy, protection, and lasting performance—Bird loads deliver where it counts. From convection to water- and air-cooled designs, each is built to absorb full RF power, minimize VSWR, and perform reliably in the toughest environments.

Oil-Cooled 15 kW Series RF Loads

Why Choose the 8941 Series?

Precision Termination at 13.56 MHz

15 kW Continuous Power Handling

Low VSWR from DC to 28 MHz

Model Selection

Which 15 kW RF Load Fits You?

Why RF Pros Choose Bird Loads

Oil-Cooled
15 kW Series RF Loads

Precision Termination at 13.56 MHz

15 kW Continuous Power Handling

Low VSWR from DC to 28 MHz