2N4857

TECHNICAL DATA SHEET 6 Lake Street, Lawrence, MA 01841 1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803 Website: http: //www.microsemi.com N-CHANNEL J-FET Equivalent To MIL-PRF-19500/385 DEVICES LEVELS 2N4856 2N4857 2N4858 2N4859 2N4860 2N4861 MQ = JAN Equivalent MX = JANTX Equivalent MV = JANTXV Equivalent 2N4856 2N4857 2N4858 -40 40 40 50 0.36 1.8 -65 to + 200 2N4859 2N4860 2N4861 -30 30 30 ABSOLUTE MAXIMUM RATINGS (TC = +25°C unless otherwise noted) Parameters / Test Conditions Gate-Source Voltage Drain-Source Voltage Drain-Gate Voltage Gate Current Power Dissipation TA = +25°C (1) TC = +25°C (2) Operating Junction & Storage Temperature Range (1) Derate linearly 2.06 mW/°C for TA > +25°C. (2) Derate linearly 10.3 mW/°C for TC > +25°C. ELECTRICAL CHARACTERISTICS (TA = +25°C, unless otherwise noted) Parameters / Test Conditions Gate-Source Breakdown Voltage 2N4856, 2N4857, 2N4858 VDS = 0, IG = -1.0μA dc 2N4859, 2N4860, 2N4861 Gate-Source “Off” State Voltage VDS = 15V dc 2N4856, 2N4859 2N4857, 2N4860 ID = 0.5ηA dc 2N4858, 2N4861 Gate Reverse Current VDS = 0, VGS = -20V dc VDS = 0, VGS = -15V dc 2N4856, 2N4857, 2N4858 2N4859, 2N4860, 2N4861 Symbol V(BR)GSS Min. -40 -30 -4.0 -2.0 -0.8 -10 -6.0 -4.0 -0.25 -0.25 0.25 50 20 8.0 175 100 80 0.75 0.50 0.50 25 40 60 Max. Unit Vdc PT Tj, Tstg W W °C Symbol VGS VDS VDG IG Unit V V V mA TO-18 (TO-206AA) VGS(off) Vdc IGSS ID(off) ηA ηA Drain Current Cutoff VGS = -10V dc, VDS = 15V dc Drain Current Zero Gate Voltage VGS = 0, VDS = 15V dc 2N4856, 2N4859 2N4857, 2N4860 2N4858, 2N4861 Drain-Source “On” State Voltage VGS = 0, ID = 20mA dc 2N4856, 2N4859 VGS = 0, ID = 10mA dc 2N4857, 2N4860 VGS = 0, ID = 5.0mA dc 2N4858, 2N4861 Static Drain – Source “On” State Resistance VGS = 0, ID = 1.0mA dc 2N4856, 2N4859 2N4857, 2N4860 2N4858, 2N4861 T4-LDS-0002 Rev. 2 (090603) IDSS mA VDS(on) Vdc rds(on) Ω Page 1 of 2 TECHNICAL DATA SHEET 6 Lake Street, Lawrence, MA 01841 1-800-446-1158 / (978) 620-2600 / Fax: (978) 689-0803 Website: http: //www.microsemi.com N-CHANNEL J-FET Equivalent To MIL-PRF-19500/385 DYNAMIC CHARACTERISTICS Parameters / Test Conditions Small-Signal, Common Short-Circuit Reverse Transfer Capacitance VGS = -10V dc, VDS = 0, f = 1.0MHz C1 = 0.1μF, L1 = L2 ≥ 500μH Small-Signal, Common-Source Short-Circuit Input Capacitance VGS = -10V dc, VDS = 0, f = 1.0MHz C1 = 0.1μF, C2 = 20.1µF L1 = L2 ≥ 500μH SWITCHING CHARACTERISTICS Parameters / Test Conditions Turn-On Delay Time Symbol 2N4856, 2N4859 2N4857, 2N4860 2N4858, 2N4861 2N4856, 2N4859 2N4857, 2N4860 2N4858, 2N4861 2N4856, 2N4859 2N4857, 2N4860 2N4858, 2N4861 td(on) See Figure 3 of MIL-PRF-19500/385 Min. Max. 6 6 10 3 4 10 25 50 100 Unit ηs Symbol Crss Min. Max. 8.0 Unit pF Ciss 18 pF Rise Time tr ηs Turn-Off Delay Time td(off) ηs T4-LDS-0002 Rev. 2 (090603) Page 2 of 2