FF Siliconix incorporated 2N4117A SERIES N-Channel JFETs The 2N4117A Series are n-channel JFETs designed to provide ultra-high input impedance. The 2N4117A Series is specified with a 1 pA limit and typically operates at 0.2 pA. These devices, therefore, make perfect choices for use as sensitive front-end amplifiers in applications such as microphones, smoke detectors, and precision test equipment. Additionally, its hermetically sealed TO-72 package allows full military processing per MIL-S-19500. (See Section 1.) For additional design information please consult performance curves NT. SIMILAR PRODUCTS e TO-92, See PN4117A Series @ Duals, See U421 Series e Chips, See NT Series Die Vasvorn Viencss Ots Ipss PART M MIN MIN MAX NUMBER (V) (Vy) (uS) (mA) 2N4117A -18 -40 70 0.09 2N4118A -3 -40 80 0.24 2N4119A -6 ~40 100 0.60 TO-72 (TO-206AF) BOTTOM VIEW 1 SOURCE 2 DRAIN 3 GATE 4 CASE ABSOLUTE MAXIMUM RATINGS (Ta = 25C Unless Otherwise Noted) PARAMETERS/TEST CONDITIONS SYMBOL LIMITS UNITS Gate-Drain Voltage Vep -40 Vv Gate-Source Voltage Ves -40 Za Gate Current Ig 50 mA Power Dissipation Po 300 mw Power Derating 2 mw/C Operating Junction Temperature Range Ty -55 to 175 Storage Temperature Range Tstg -65 to 175 C Lead Temperature ('/,,_ from case for 10 sec.) TL 255 Rev. A (02/11/91) 41 2N4117A SERIES Reerporcres SPECIFICATIONS? LIMITS 2N4117A 2N4118A 2N4119A PARAMETER SYMBOL TEST CONDITIONS TYP | MIN | MAX | MIN | MAX MIN | MAX UNIT STATIC Gate-Source Breakdown Voltage Vieriass Ig = THA. Vos = OV -70 | -40 ~40 ~40 Vv Gate-Source Cutoff Voltage VasiorF) Vos = 10ViIp = 1nA ~06 | -18 7 -1 -3 -2 | -6 Saturation Drain Current loss Vos = 10V. Vag = OV 0.015 | 0.09 | 0.08 [024 | o2 | o6 7 ma Drain Reverse Curent lass Ves = -20V, Vps = OV -0.2 -1 -1 -1 pA [Ta = 150C | -04 -2.5 -2.5 -25 | nA Gate Operating Current Ig Vog = 15V, lp = 30 pA -0.2 pA Drain Cutoff Current Ip(orFF) Vos = 10V. Vgg = -8V 02 Gate-Sor Fi d Voltage urce rorwar Vasir) Ig = 1MA,Vpg = OV 07 Vv DYNAMIC Common-Source Forward Transconductance Ors Vos = 10V, Veg = OV 70 | 210 | 80 | 250 } 100 | 390 | BS Common-Source f = 1kHz Output Conductance Gos 3 5 10 Common-Source Input Capacitance Css Vps = 10V, Vgg = OV 12 8 3 3 | pF Coammon-Source Reverse f = 1 MHz Transfer Capacitance Ciss 0.3 15 15 15 Equivalent Input z Vos = 10V, Veg = OV 15 nv/ Noise Voltage n f = 1 kHz Viz NOTES: a. Ta = 25C unless otherwise noted. b. For design aid only, not subject to production testing. c. Pulse test; PW = 300 LS, duty cycle << 3%. 42 Rev. A (02/11/91)