BF245A/BF245B/BF245C BF245A/BF245B/BF245C N-Channel Amplifiers • This device is designed for VHF/UHF amplifiers. • Sourced from process 50. TO-92 1 1. Gate 2. Source 3. Drain Absolute Maximum Ratings Ta=25°C unless otherwise noted Symbol VDG Drain-Gate Voltage Parameter Value 30 Units V VGS Gate-Source Voltage -30 V IGF Forward Gate Current 10 mA PD Total Device Dissipation @TA=25°C Derate above 25°C 350 2.8 mW mW/°C TJ, TSTG Operating and Storage Junction Temperature Range - 55 ~ 150 °C Electrical Characteristics Ta=25°C unless otherwise noted Symbol Parameter Test Condition Min. Max. Units Off Characteristics V(BR)GSS Gate-Source Breakdown Voltage VDS = 0, IG = 1µA -30 VGS VDS = 15V, ID = 200µA -0.4 -1.6 -3.2 -2.2 -3.8 -7.5 -0.5 -8 V -5 nA Gate-Source BF245A BF245B BF245C V V VGS(off) Gate-Source Cut-off Voltage VDS = 15V, ID = 10nA IGSS Gate Reverse Current VGS = -20V, VGS = 0 On Characteristics IDSS Zero-Gate Voltage Drain Current BF245A BF245B BF245C VGS = 15V, VGS = 0 2 6 12 6.5 15 25 mA On Characteristics Common Source Forward gfs Transconductance VGS = 15V, VGS = 0, f = 1KHz 3 6.5 mmhos ©2003 Fairchild Semiconductor Corporation Rev. A1, June 2003 BF245A/BF245B/BF245C 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 ©2003 Fairchild Semiconductor Corporation Rev. A1, June 2003 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™ ActiveArray™ FACT Quiet series™ Bottomless™ FAST® FASTr™ CoolFET™ CROSSVOLT™ FRFET™ GlobalOptoisolator™ DOME™ EcoSPARK™ GTO™ E2CMOS™ HiSeC™ EnSigna™ I2C™ Across the board. Around the world.™ The Power Franchise™ Programmable Active Droop™ ImpliedDisconnect™ ISOPLANAR™ LittleFET™ MicroFET™ MicroPak™ MICROWIRE™ MSX™ MSXPro™ OCX™ OCXPro™ OPTOLOGIC® OPTOPLANAR™ PACMAN™ POP™ Power247™ PowerTrench® QFET™ QS™ QT Optoelectronics™ Quiet Series™ RapidConfigure™ RapidConnect™ SILENT SWITCHER® SMART START™ SPM™ Stealth™ SuperSOT™-3 SuperSOT™-6 SuperSOT™-8 SyncFET™ TinyLogic® 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 which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. 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. ©2003 Fairchild Semiconductor Corporation Rev. I2