PN4117 / PN4118 / PN4119 N-Channel Switch is a N-Channel switch from Fairchild Semiconductor Corporation. This device is designed for low current DC and audio applications. It provides excellent performance as input stages for sub-picoamp instrumentation or any high impedance signal sources.
This document provides technical specifications for the Fairchild PN4117, PN4118, and PN4119 N-Channel Switches, available in SOT-23 packages. These devices are designed for low current DC and audio applications, offering excellent performance as input stages for sub-picoamp instrumentation or high impedance signal sources. The source and drain terminals are interchangeable.
The datasheet details absolute maximum ratings, thermal characteristics, and comprehensive electrical parameters including off-state characteristics, on-state currents, and small-signal characteristics such as transconductance and output conductance. It also includes typical performance graphs for transfer characteristics, leakage current, output conductance, and capacitance versus voltage.
| Drain-Gate Voltage | 40 V |
|---|---|
| Gate-Source Voltage | -40 V |
| Operating Junction Temperature | -55 to +150 °C |
| Total Device Dissipation | 350 mW |
| Thermal Resistance Junction to Case | 125 °C/W |
| Gate-Source Breakdown Voltage | 40 V |
| Gate Reverse Current (PN4117) | 10 pA |
| Zero-Gate Voltage Drain Current (PN4117) | 30 to 90 uA |
| Common-Source Forward Transconductance (PN4117) | 70 to 210 umhos |
Yes, the source and drain terminals are interchangeable for these devices.
These devices are designed for low current DC and audio applications.
The operating and storage junction temperature range is -55 to +150 °C.