Download PDF2N4857 CENTRAL
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Technical content
DESCRIPTION: The CENTRAL SEMICONDUCTOR 2N4857 and 2N4857A are N-Channel silicon JFETs designed for analog switching and chopper applications. MARKING: FULL PART NUMBER MAXIMUM RATINGS: (TA=25°C) SYMBOL UNITS Drain-Source Voltage V DS 40 V Drain-Gate Voltage V DG 40 V Reverse Gate-Source Voltage V GSR 40 V Forward Gate Current I GF 50 mA Power Dissipation (TA=25°C) P D 360 mW Operating and Storage Junction Temperature T J, Tstg -65 to +200 °C ELECTRICAL CHARACTERISTICS: (TA=25°C unless otherwise noted) SYMBOL TEST CONDITIONS MIN MAX UNITS IGSS V GS=20V, VDS=0 0.25 nA IGSS V GS=20V, VDS=0, TA=150°C 0.5 μA IDSS V DS=15V, VGS=0 20 100 mA ID(OFF) V DS=15V, VGS=10V 0.25 nA ID(OFF) V DS=15V, VGS=10V, TA=150°C 0.5 μA BVGSS I G=1.0μA, VDS=0 40 V VGS(OFF) V DS=15V, ID=0.5nA 2.0 6.0 V VDS(ON) I D=10mA, VGS=0 0.5 V rDS(ON) V GS=0, ID=0, f=1.0kHz 40 Ω C rss V GS=10V, VDS=0, f=1.0MHz (2N4857) 8.0 pF Crss V GS=10V, VDS=0, f=1.0MHz (2N4857A) 3.5 pF Ciss V GS=10V, VDS=0, f=1.0MHz (2N4857) 18 pF Ciss V GS=10V, VDS=0, f=1.0MHz (2N4857A) 10 pF td V DD=10V, VGS(OFF)=6.0V, ID=10mA 6.0 ns tr V DD=10V, VGS(OFF)=6.0V, ID=10mA 4.0 ns toff V DD=10V, VGS(OFF)=6.0V, ID=10mA (2N4857) 50 ns toff V DD=10V, VGS(OFF)=6.0V, ID=10mA (2N4857A) 40 ns TO-18 CASE R0 (11-June 2012) www.centralsemi.com
TO-18 CASE - MECHANICAL OUTLINE LEAD CODE: 1) Source 2) Drain 3) Gate MARKING: FULL PART NUMBER www.centralsemi.com R0 (11-June 2012)