BF1206,115

Overview

The BF1206 is a dual N-channel dual-gate MOS-FET discrete semiconductor component manufactured by NXP Semiconductors. It integrates two low-noise gain-controlled amplifiers within a single SOT363 micro-miniature plastic package with six leads. The device features shared source and gate 2 leads, internal bias circuits for DC stabilization, and integrated protection diodes between the gates and source. Designed for VHF and UHF applications, it operates with a 5 V supply voltage and delivers high forward transfer admittance with superior cross-modulation performance during automatic gain control.

Feature Summary

• Integrates two distinct dual-gate MOS-FET amplifiers in a single surface-mount package
• Features shared source and gate 2 pins to simplify circuit topology
• Provides superior cross-modulation performance during automatic gain control operation
• Includes integrated diodes between gates and source for input voltage surge protection

Applications

• Gain controlled low noise amplifiers for VHF applications
• Gain controlled low noise amplifiers for UHF applications
• Digital television tuners requiring 5 V supply voltage
• Analog television tuners requiring 5 V supply voltage

Procurement Notes

Verify the specific ordering suffix against current NXP documentation to confirm package variant and tape-and-reel specifications. Confirm that the component status remains active or qualifies as historical reference if discontinued. Ensure electrostatic discharge handling protocols are followed during transport and assembly due to the sensitivity of the MOS-FET structure.

Selection Notes

Select this component when designing compact VHF or UHF front-end stages requiring dual independent gain control channels. The shared source and gate 2 architecture reduces pin count compared to separate transistors. Evaluate the thermal resistance from junction to soldering point and ensure the total power dissipation limits are respected under maximum operating temperature conditions.

Part Context

This component belongs to the NXP discrete semiconductors portfolio, specifically categorized as a dual-gate MOS-FET. It is designed for use in radio frequency signal processing where low noise and high linearity are critical. The SOT363 package allows for space-constrained surface mount implementations in consumer electronics and communication equipment.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.