Fairchild PN4117/18/19 N-Channel Switch Data Handbook

PN4117 MMBF4117 PN4118 MMBF4118 PN4119 MMBF4119

TO-92

SOT-23 Mark: 61A / 61C / 61E NOTE: Source & Drain are interchangeable

N-Channel Switch This device is designed for low current DC and audio applications. These devices provide excellent performance as input stages for sub-picoamp instrumentation or any high impedance signal sources. Sourced from Process 53.

Absolute Maximum Ratings* TA = 25°C unless otherwise noted Symbol Parameter Value Units VDG Drain-Gate Voltage VGS Gate-Source Voltage - 40 IGF Forward Gate Current m A

TJ ,Tstg Operating and Storage Junction Temperature Range -55 to +150 °C

*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. NOTES: 1) These ratings are based on a maximum junction temperature of 150 degrees C. 2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.

Thermal Characteristics TA = 25°C unless otherwise noted Symbol Characteristic Max Units

PN4117-4119 *MMBF4117-4119

PD Total Device Dissipation m W

Derate above 25°C 2.8 1.8 m W/°C

RθJC Thermal Resistance, Junction to Case °C/W RθJA Thermal Resistance, Junction to Ambient °C/W

*Device mounted on FR-4 PCB 1.6" X 1.6" X 0.06."

1997 Fairchild Semiconductor Corporation