U1898 U1898 N-Channel Switch • This device is designed for low level analog switching, sample and hold circuits and chopper stabalized amplifiers. • Sourced from Process 51. • See J111 for characteristics. TO-92 1 1. Drain 2. Source 3. Gate Absolute Maximum Ratings* Ta=25°C unless otherwise noted Symbol VDG Drain-Gate Voltage Parameter Ratings 40 Units V VGS Gate-Source Voltage -40 V IGF Forward Gate Current 50 mA TJ, TSTG Operating and Storage Junction Temperature Range -55 ~ 150 °C * This ratings are limiting values above which the serviceability of any semiconductor device may be impaired. NOTES: 1) These rating are based on a maximum junction temperature of 150 degrees C. 2) These are steady limits. The factory should be consulted on applications involving pulsed or low duty cycle operations. Electrical Characteristics Ta=25°C unless otherwise noted Symbol Off Characteristics Parameter Test Condition Min. V(BR)GS Gate-Source Breakdown Voltage IG = 1.0 µA, VDS = 0 -40 VGS(off) Gate-Source Cutoff Voltage VDS = 20 V, ID = 1.0 nA -2.0 IDGO Drain-Gate Leakage Current VDG = 20 V, IS = 0 Max. Units V -7.0 V -200 pA On Characteristics IDSS Zero-Gate Voltage Drain Current * rDS(on) VDS = 20 V, VGS = 0 15 mA ID = 1.0 mA, VGS = 0 50 Ω Small Signal Characteristics rds(on) Drain-Source On Resistance VDS = VGS = 0, f= 1.0 kHz 50 Ω Ciss Input Capacitance VDS = 20, VGS = 0, f = 1.0 MHz 16 pF Crss Reverse Transfer Capacitance VGS = - 20 V, f = 1.0 MHz 5.0 pF Switching Characteristics ton Turn-On Time ID(on) = 6.0 mA 35 ns toff Turn-Off Time VGS(off) = 6.0 V 60 ns * Pulse Test: Pulse Width ≤ 300 µs, Duty Cycle ≤ 2.0% Thermal Characteristics Ta=25°C unless otherwise noted Symbol PD Parameter Total Device Dissipation Derate above 25°C Max. 625 5.0 Units mW mW/°C RθJC RθJA Thermal Resistance, Junction to Case 125 °C/W Thermal Resistance, Junction to Ambient 357 °C/W ©2004 Fairchild Semiconductor Corporation Rev. A, April 2004 U1898 Package Dimensions TO-92 +0.25 4.58 ±0.20 4.58 –0.15 ±0.10 14.47 ±0.40 0.46 1.27TYP [1.27 ±0.20] 1.27TYP [1.27 ±0.20] ±0.20 (0.25) +0.10 0.38 –0.05 1.02 ±0.10 3.86MAX 3.60 +0.10 0.38 –0.05 (R2.29) Dimensions in Millimeters ©2004 Fairchild Semiconductor Corporation Rev. A, April 2004 TRADEMARKS The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is not intended to be an exhaustive list of all such trademarks. ACEx™ FACT Quiet Series™ ActiveArray™ FAST® FASTr™ Bottomless™ FPS™ CoolFET™ CROSSVOLT™ FRFET™ GlobalOptoisolator™ DOME™ GTO™ EcoSPARK™ HiSeC™ E2CMOS™ EnSigna™ I2C™ i-Lo™ FACT™ Across the board. Around the world.™ The Power Franchise® Programmable Active Droop™ ImpliedDisconnect™ ISOPLANAR™ LittleFET™ MICROCOUPLER™ MicroFET™ MicroPak™ MICROWIRE™ MSX™ MSXPro™ OCX™ OCXPro™ OPTOLOGIC® OPTOPLANAR™ PACMAN™ POP™ Power247™ PowerSaver™ PowerTrench® QFET® QS™ QT Optoelectronics™ Quiet Series™ RapidConfigure™ RapidConnect™ SILENT SWITCHER® SMART START™ SPM™ Stealth™ SuperFET™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 SyncFET™ TinyLogic® TINYOPTO™ TruTranslation™ UHC™ UltraFET® VCX™ DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems 2. A critical component is any component of a life support which, (a) are intended for surgical implant into the body, device or system whose failure to perform can be or (b) support or sustain life, or (c) whose failure to perform reasonably expected to cause the failure of the life support when properly used in accordance with instructions for use device or system, or to affect its safety or effectiveness. provided in the labeling, can be reasonably expected to result in significant injury to the user. PRODUCT STATUS DEFINITIONS Definition of Terms Datasheet Identification Product Status Definition Advance Information Formative or In Design This datasheet contains the design specifications for product development. Specifications may change in any manner without notice. Preliminary First Production This datasheet contains preliminary data, and supplementary data will be published at a later date. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. No Identification Needed Full Production This datasheet contains final specifications. Fairchild Semiconductor reserves the right to make changes at any time without notice in order to improve design. Obsolete Not In Production This datasheet contains specifications on a product that has been discontinued by Fairchild semiconductor. The datasheet is printed for reference information only. ©2004 Fairchild Semiconductor Corporation Rev. I10