J305

Overview

The J305 is an N-Channel Junction Field-Effect Transistor (JFET) designed primarily for electronic switching applications, including low on-resistance analog switching. It utilizes Silicon technology and is housed in a TO-92 surface-mount package with three terminals: Gate, Source, and Drain. The device operates within a junction temperature range of -55°C to +150°C. Key electrical characteristics include a Drain-Gate Voltage rating of 30 V, a Gate-Source Voltage limit of -30 V, and a Zero-Gate Voltage Drain Current (IDSS) ranging from 1 mA to 8 mA at VDS = 15V. The forward transfer conductance (gfs) is specified between 3000 μmhos under standard test conditions.

Feature Summary

• Designed specifically for electronic switching applications requiring low on-resistance analog switching capabilities.

Applications

• Electronic switching circuits
• Low on-resistance analog switching

Procurement Notes

Verify the current production status before procurement as this component may be discontinued or subject to process changes. Confirm that the TO-92 package and pinout configuration match the target design requirements. Ensure compliance with RoHS directives if applicable to the specific manufacturing lot. Consult official documentation for any temporary suspension notices or product discontinuance notifications prior to finalizing supply chain decisions.

Selection Notes

Select this component when designing circuits that require an N-Channel JFET for analog switching functions. Verify that the required IDSS range of 1 mA to 8 mA fits the circuit biasing needs. Ensure the operating voltage does not exceed the 30 V Drain-Gate or -30 V Gate-Source limits. Consider the thermal resistance values for heat dissipation planning in enclosed environments.

Part Context

The J305 is part of the N-Channel RF Amplifier series manufactured by Fairchild Semiconductor, which is now associated with onsemi. This specific device is sourced from process 50. It serves as a discrete semiconductor solution for small-signal applications where depletion mode operation is required.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Cross-referencing should be performed using key parameters such as N-Channel JFET type, TO-92 package, and matching IDSS ranges.