2N4868

Databook.fxp 1/14/99 12:00 PM Page B-17 01/99 B-17 2N4867, 2N4867A, 2N4868, 2N4868A, 2N4869, 2N4869A N-Channel Silicon Junction Field-Effect Transistor ¥ Audio Amplifiers Absolute maximum ratings at TA = 25¡C Reverse Gate Source & Reverse Gate Drain Voltage Gate Current Continuous Device Power Dissipation Power Derating Storage Temperature Range – 40 V 50 mA 300mW 1.7 mW/°C – 65°C to + 200°C At 25°C free air temperature: Static Electrical Characteristics Gate Source Breakdown Voltage Gate Reverse Current Gate Source Cutoff Voltage Drain Saturation Current (Pulsed) Dynamic Electrical Characteristics Common Source Forward Transconductance Common Source Output Conductance Common Source Input Capacitance Common Source Reverse Transfer Capacitance Equivalent Short Circuit Input Noise Voltage Noise Figure gfs gos Ciss Crss eN ¯ V(BR)GSS IGSS VGS(OFF) IDSS 2N4867 2N4867A Min – 40 – 0.25 – 0.25 – 0.7 0.4 –2 1.2 Max 2N4868 2N4868A Min – 40 – 0.25 – 0.25 –1 1 –3 3 Max 2N4869 2N4869A Min – 40 – 0.25 – 0.25 – 1.8 2.5 –5 7.5 Max Unit V nA µA V mA Process NJ16 Test Conditions IG = – 1µA, VDS = ØV VGS = – 30V, VDS = ØV VGS = – 30V, VDS = ØV VDS = 20V, ID = 1 µA VDS = 20V, VGS = ØV TA = 150°C 700 2000 1.5 25 5 20 10 1 1000 3000 4 25 5 20 10 1 1300 4000 10 25 5 20 10 1 µS µS pF pF nV/√HZ nV/√HZ VDS = 20V, VGS = ØV VDS = 20V, VGS = ØV VDS = 20V, VGS = ØV VDS = 20V, VGS = ØV VDS = 10V, VGS = ØV VDS = 10V, VGS = ØV VDS = 10V, VGS = ØV f = 1 kHz f = 1 kHz f = 1 MHz f = 1 MHz f = 10 Hz f = 1 kHz f = 1 kHz NF dB (2N4867, 68, 69) RG = 20 kΩ (2N4867A, 68A, 69A) RG = 5 kΩ TOÐ72 Package Dimensions in Inches (mm) Surface Mount SMP4867, SMP4867A, SMP4868, SMP4868A, SMP4869, SMP4869A Pin Configuration 1 Source, 2 Drain, 3 Gate, 4 Case www.interfet.com 1000 N. Shiloh Road, Garland, TX 75042 (972) 487-1287 FAX (972) 276-3375