TF408-2-TL-H

Overview

The TF408-2-TL-H is an N-channel Junction Field-Effect Transistor (JFET) manufactured by onsemi. It is designed for surface-mount applications and utilizes a 3-USFP package. The device supports a maximum drain current of 10 mA and has a maximum power dissipation rating of 30 mW. Key electrical characteristics include a cutoff voltage (VGSoff) of 180 mV at a drain current of 1 µA, and a maximum input capacitance of 4 pF measured at a drain-source voltage of 10 V. The component is rated for operation up to a junction temperature of 150°C.

Feature Summary

• N-channel JFET configuration for signal processing
• Surface-mount 3-USFP packaging for compact integration
• Low input capacitance for high-frequency performance

Applications

• Analog switch circuits
• High-impedance buffer stages
• Signal gating applications

Procurement Notes

Verify the obsolete status of this part number before procurement planning. Confirm availability through authorized distributors or secondary market channels, as standard supply may be discontinued. Ensure that any substitute components meet the required electrical specifications and package dimensions for direct replacement in existing designs.

Selection Notes

Select this component for applications requiring low input capacitance and high impedance characteristics in analog signal paths. Consider the 3-USFP package constraints for PCB layout. Evaluate thermal management requirements given the 30 mW power dissipation limit and 150°C junction temperature rating during design phase.

Part Context

This JFET belongs to the discrete transistor category within onsemi's portfolio. It serves as a specialized semiconductor device for analog circuit applications where low noise and high input impedance are critical. The 3-USFP package provides a compact form factor suitable for space-constrained electronic designs.

Replacement Considerations

The TF408-2-TL-H is listed as obsolete. Check for equivalent N-channel JFETs with similar 10 mA current ratings and 3-pin SMD packages. Verify pinout compatibility and electrical parameters such as VGSoff and Ciss when selecting alternative sources.