BF904,215

Overview

The BF904,215 is an N-channel dual-gate MOSFET RF FET manufactured by NXP Semiconductors. It operates with a rated voltage of 7 V and a maximum drain current of 30 mA. The device is designed for radio frequency applications up to 200 MHz. Key electrical characteristics include a noise figure of 1 dB when tested at 5 V and 10 mA. It utilizes the SOT-143R surface-mount package. The component is identified as a discrete semiconductor device intended for high-frequency signal processing tasks.

Feature Summary

• Dual-gate architecture for enhanced RF control
• Low noise figure performance in RF stages
• Surface-mount SOT-143R packaging

Applications

• RF amplifier circuits
• Mixers in radio frequency systems
• Local oscillator buffers

Procurement Notes

Verify the exact part number suffix against official NXP documentation to confirm tape-and-reel specifications. Confirm that the SOT-143R package matches the design footprint requirements. Check for end-of-life status or alternative recommendations from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component for designs requiring low-noise RF amplification within the specified voltage and current limits. Ensure the operating frequency remains within the 200 MHz range. Verify thermal management capabilities for the SOT-143R package under expected load conditions.

Part Context

This device belongs to the family of N-channel dual-gate MOS-FETs produced by NXP Semiconductors. These components are specialized for analog and RF signal processing. The BF904 variant specifically targets applications needing stable gain and low noise in compact surface-mount formats.

Replacement Considerations

Consult NXP datasheets for direct equivalents such as the BF904A. Verify pin compatibility and electrical parameters before substituting.