2N3819 JFET VHF/UHF Amplifier N–Channel – Depletion MAXIMUM RATINGS Rating http://onsemi.com Symbol Value Unit Drain–Source Voltage VDS 25 Vdc Drain–Gate Voltage VDG 25 Vdc Gate–Source Voltage VGS 25 Vdc ID 100 mAdc Forward Gate Current IG(f) 10 mAdc Total Device Dissipation @ TA = 25°C Derate above 25°C PD 350 2.8 mW mW/°C Storage Channel Temperature Range Tstg –65 to +150 °C Drain Current 3 DRAIN 2 GATE 1 SOURCE 1 2 3 TO–92 CASE 29 STYLE 22 MARKING DIAGRAM 2N 3819 YWW 2N3819 = Device Code Y = Year WW = Work Week ORDERING INFORMATION Device 2N3819 Semiconductor Components Industries, LLC, 2002 March, 2002 – Rev. 0 1 Package Shipping TO–92 5000 Units/Box Publication Order Number: 2N3819/D 2N3819 ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted) Characteristic Symbol Min Typ Max Unit Gate–Source Breakdown Voltage (IG = 1.0 µAdc, VDS = 0) V(BR)GSS 25 – – Vdc Gate–Source (VDS = 15 Vdc, ID = 200 µAdc) VGS 0.5 – 7.5 Vdc Gate–Source Cutoff Voltage (VDS = 15 Vdc, ID = 10 nAdc) VGS(off) – – –8.0 Vdc IGSS – – 210 nAdc IDSS 2.0 – 20 mAdc OFF CHARACTERISTICS Gate Reverse Current (VGS = 15 Vdc, VDS = 0) ON CHARACTERISTICS Zero–Gate–Voltage Drain Current (VDS = 15 Vdc, VGS = 0) SMALL–SIGNAL CHARACTERISTICS Forward Transfer Admittance (VDS = 15 Vdc, VGS = 0, f = 1.0 kHz) Yfs 3.0 – 6.5 mmhos Output Admittance (VDS = 15 Vdc, VGS = 0, f = 1.0 kHz) Yos – 40 – mhos Forward Transfer Admittance (VDS = 15 Vdc, VGS = 0, f = 200 MHz) Yfs – 5.6 – mmhos Reverse Transfer Admittance (VDS = 15 Vdc, VGS = 0, f = 200 MHz) Yrs – 1.0 – mmhos (VDS = 20 Vdc, –VGS = 1.0 Vdc) Ciss – 3.0 – pF Input Capacitance Reverse Transfer Capacitance (VDS = 20 Vdc, –VGS = 1.0 Vdc, f = 1.0 MHz) Crss – 0.7 – pF Output Capacitance (VDS = 20 Vdc, –VGS = 1.0 Vdc, f = 1.0 MHz) Coss – 0.9 – pF (VDS = 15 Vdc, VGS = 0) F(Yfs) – 700 – MHz Cut–off Frequency (Note 1) 1. The frequency at which gfs is 0.7 of its value at 1 kHz. http://onsemi.com 2 2N3819 COMMON SOURCE CHARACTERISTICS 30 20 bis @ IDSS 10 7.0 5.0 3.0 gis @ IDSS 2.0 gis @ 0.25 IDSS 1.0 0.7 0.5 0.3 10 bis @ 0.25 IDSS 20 30 50 70 100 200 300 f, FREQUENCY (MHz) grs , REVERSE TRANSADMITTANCE (mmhos) brs , REVERSE SUSCEPTANCE (mmhos) gis, INPUT CONDUCTANCE (mmhos) bis, INPUT SUSCEPTANCE (mmhos) ADMITTANCE PARAMETERS (VDS = 15 Vdc, Tchannel = 25°C) 500 700 1000 5.0 3.0 2.0 brs @ IDSS 1.0 0.7 0.5 0.25 IDSS 0.3 0.2 0.1 0.07 0.05 grs @ IDSS, 0.25 IDSS 10 20 50 70 100 200 300 f, FREQUENCY (MHz) 500 700 1000 10 10 7.0 5.0 gfs @ IDSS gfs @ 0.25 IDSS 3.0 2.0 1.0 0.7 0.5 0.3 0.2 10 30 Figure 2. Reverse Transfer Admittance (yrs) gos, OUTPUT ADMITTANCE (mhos) bos, OUTPUT SUSCEPTANCE (mhos) gfs, FORWARD TRANSCONDUCTANCE (mmhos) |b fs|, FORWARD SUSCEPTANCE (mmhos) Figure 1. Input Admittance (yis) 20 |bfs| @ IDSS 30 50 70 100 200 300 f, FREQUENCY (MHz) bos @ IDSS and 0.25 IDSS 2.0 1.0 0.5 0.2 gos @ IDSS 0.1 0.05 |bfs| @ 0.25 IDSS 20 5.0 gos @ 0.25 IDSS 0.02 500 700 1000 0.01 10 Figure 3. Forward Transadmittance (yfs) 20 30 50 70 100 200 300 f, FREQUENCY (MHz) 500 7001000 Figure 4. Output Admittance (yos) http://onsemi.com 3 2N3819 COMMON SOURCE CHARACTERISTICS S–PARAMETERS (VDS = 15 Vdc, Tchannel = 25°C, Data Points in MHz) 30° 20° 10° 0° 1.0 40° 350° 340° 400 300 0.8 320° 40° 310° 50° 20° 10° 0° 350° 340° 330° 0.4 300 200 0.9 30° 32 200 100 50° 330° ID = 0.25 IDSS 100 ID = IDSS 0.3 ID = IDSS, 0.25 IDSS 500 31 900 800 0.2 300° 60° 290° 70° 280° 80° 270° 90° 100° 260° 100° 26 110° 250° 110° 25 120° 240° 120° 24 130° 230° 130° 23 140° 220° 140° 22 60° 400 500 0.7 70° 600 80° 0.6 90° 900 150° 160° 170° 180° 800 190° 700 800 700 900 200° 600 600 210° 20° 10° 0° 350° 340° 300 0.5 900 70° 80° 90° 100° 110° 120° 800 700 600 500 0.4 900 800 700 600 500 0.3 100 400 400 0.3 ID = 0.25 IDSS 300 200 0.4 100 0.5 300 ID = IDSS 200 28 0.0 200 27 100 150° 330° 0.6 60° 29 160° 170° 180° 190° 200° 210° Figure 6. S12s 40° 50° 0.1 500 400 Figure 5. S11s 30° 30 700 130° 30° 20° 10° 0° 350° 340° 330° 100 200 I = 0.25 IDSS D 300 1.0 400 100 200 500 300 600 400 700 0.9 500 800 600 ID = IDSS 700 900 800 900 0.8 320° 40° 310° 50° 300° 60° 290° 70° 280° 80° 270° 90° 27 260° 100° 26 250° 110° 25 240° 120° 24 230° 130° 23 220° 140° 22 0.7 32 31 30 29 28 0.6 0.6 140° 150° 160° 170° 180° 190° 200° 210° 150° Figure 7. S21s 160° 170° 180° 190° Figure 8. S22s http://onsemi.com 4 200° 210° 2N3819 COMMON GATE CHARACTERISTICS ADMITTANCE PARAMETERS (VDG = 15 Vdc, Tchannel = 25°C) 10 7.0 5.0 grg , REVERSE TRANSADMITTANCE (mmhos) brg , REVERSE SUSCEPTANCE (mmhos) gig, INPUT CONDUCTANCE (mmhos) big, INPUT SUSCEPTANCE (mmhos) 20 gig @ IDSS 3.0 grg @ 0.25 IDSS 2.0 1.0 0.7 0.5 big @ IDSS 0.3 0.2 10 20 30 big @ 0.25 IDSS 50 70 100 200 300 f, FREQUENCY (MHz) 500 700 1000 0.5 0.3 brg @ IDSS 0.2 0.1 0.07 0.05 0.25 IDSS 0.03 0.02 0.01 0.007 0.005 gig @ IDSS, 0.25 IDSS 10 10 7.0 5.0 gfg @ IDSS 3.0 gfg @ 0.25 IDSS 2.0 1.0 0.7 0.5 bfg @ IDSS 0.3 brg @ 0.25 IDSS 0.2 0.1 10 20 30 50 70 100 200 300 f, FREQUENCY (MHz) 30 50 70 100 200 300 f, FREQUENCY (MHz) 500 700 1000 Figure 10. Reverse Transfer Admittance (yrg) gog, OUTPUT ADMITTANCE (mmhos) bog, OUTPUT SUSCEPTANCE (mmhos) gfg , FORWARD TRANSCONDUCTANCE (mmhos) bfg , FORWARD SUSCEPTANCE (mmhos) Figure 9. Input Admittance (yig) 20 500 700 1000 1.0 0.7 0.5 bog @ IDSS, 0.25 IDSS 0.3 0.2 0.1 0.07 0.05 gog @ IDSS 0.03 0.02 0.01 gog @ 0.25 IDSS 10 Figure 11. Forward Transfer Admittance (yfg) 20 30 50 70 100 200 300 f, FREQUENCY (MHz) 500 700 1000 Figure 12. Output Admittance (yog) http://onsemi.com 5 2N3819 COMMON GATE CHARACTERISTICS S–PARAMETERS (VDS = 15 Vdc, Tchannel = 25°C, Data Points in MHz) 30° 20° 10° 0° 350° 340° 0.7 40° 100 100 200 200 0.5 300 300 60° ID = IDSS 0.4 70° 400 700 400 500 310° 50° 300° 60° 290° 70° 280° 80° 600 900 260° 100° 110° 250° 110° 120° 240° 120° 130° 230° 130° 140° 30° 20° 180° 190° 0° 350° 100 600 ID = IDSS 700 600 700 800 29 28 0.0 27 26 ID = 0.25 IDSS 25 0.01 24 0.02 23 900 0.03 22 0.04 210° 150° 160° 340° 330° 30° 20° 170° 180° 190° 200° 210° 340° 330° Figure 14. S12g 10° 40° 320° 0° 1.5 1.0 100 100 0.4 30 500 800 200° 0.5 40° 32 0.01 Figure 13. S11g 10° 330° 0.02 140° 220° 170° 340° 31 900 160° 350° 0.04 90° 270° 100° 150° 0° 800 900 90° 40° 10° 600 800 0.3 320° 20° 0.03 500 700 80° 30° ID = 0.25 IDSS 0.6 50° 330° 350° 300 200 400 32 700 600 800 0.9 ID = IDSS 500 900 31 310° 50° 300° 60° 290° 70° 280° 80° 270° 90° 27 260° 100° 26 110° 250° 110° 25 120° 240° 120° 24 130° 230° 130° 23 140° 220° 140° 22 50° 100 0.3 60° 0.2 70° 80° ID = 0.25 IDSS 0.1 900 90° 900 100° 150° 160° 170° 180° 190° 200° 210° ID = IDSS, 0.25 IDSS 0.8 0.7 29 28 0.6 150° Figure 15. S21g 30 160° 170° 180° 190° Figure 16. S22g http://onsemi.com 6 200° 210° 2N3819 PACKAGE DIMENSIONS TO–92 (TO–226) CASE 29–11 ISSUE AL A NOTES: 1. DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982. 2. CONTROLLING DIMENSION: INCH. 3. CONTOUR OF PACKAGE BEYOND DIMENSION R IS UNCONTROLLED. 4. LEAD DIMENSION IS UNCONTROLLED IN P AND BEYOND DIMENSION K MINIMUM. B R P L SEATING PLANE K DIM A B C D G H J K L N P R V D X X G J H V C SECTION X–X 1 N N INCHES MIN MAX 0.175 0.205 0.170 0.210 0.125 0.165 0.016 0.021 0.045 0.055 0.095 0.105 0.015 0.020 0.500 --0.250 --0.080 0.105 --0.100 0.115 --0.135 --- STYLE 22: PIN 1. SOURCE 2. GATE 3. DRAIN http://onsemi.com 7 MILLIMETERS MIN MAX 4.45 5.20 4.32 5.33 3.18 4.19 0.407 0.533 1.15 1.39 2.42 2.66 0.39 0.50 12.70 --6.35 --2.04 2.66 --2.54 2.93 --3.43 --- 2N3819 ON Semiconductor is a trademark and is a registered trademark of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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