Microchip Technology, Inc. JFETs 2N4858U/TR

The 2N4858U/TR is an N-channel JFET in a TO-18 package, designed for analog switching and amplification applications. It has a gate-source breakdown voltage of -40 V, a drain-source voltage rating of 40 V, and a maximum power dissipation of 1.8 W at 25°C with heatsinking. The device operates over a junction and storage temperature range of -65°C to +200°C. Electrical characteristics include a drain-source on-state resistance of 60 Ω, a drain current of 8.0 to 80 mA at V_GS=0 V and V_DS=15 V, and a gate reverse current of -0.25 µA at V_GS=-20 V and V_DS=0 V. It meets MIL-PRF-19500/385 qualification standards.