N-Channel JFET SOLID STATE INC. 2N4856 2N4856A 2N4857 2N4857A 2N4858 2N4858A 46 FARRAND STREET =I Common Uses Analog switches Choppers Commutators Features Low on resistance High off resistance High speed switch Electrical Characteristics BLOOMFIELD, NEW JERSEY 07003 www.solidstateinc.com Absolute Maximum Ratings (25 C) Gate-SOUICE ... eee eee -40V Gate-drain 0... cee eens -40V Drain-SOUrCE .. 1. eee ees +40V 0 oO Gate current..........00.0. 0c cece eee eee 10 mA D G Device dissipation (at or below 25C free air temperature)...... 300 mW s Storage range.................. 65 to +200C (25C unless specified) TO18 Bottom View DC 2N4856 2N4857 2N4858 2N4856A 2N4857A 2N4858A Characteristic Symbol Test Conditlons Min Max Min Max Min Max | Units 1.) Gate reverse current | Igss Vos = 9,Ve@g = -20V - 0.25 ~0.25 ~ 0.25 nA 2. Ta = 150C -05 ~05 O5 | pA 3.| Gate-channel break- | BVgss Vos = O!g@ = -1pA - 40 - 40 ~ 40 Vv down voltage 4.| Gate-source cut off Ves (off) Vos = 15V, ip = 0.5nA -4 -10 -2 -6 0.8 4 voitage |_5.} Drain-source on Vos (on) [Yas = 9 Ip = 20mA 0.75 g.| voltage Ip = 10mA 0.50 7. Ip = 5mA 0.50 8.| Saturation drain lpss Vos = 15V, Ves = 0 50 20 100 8 80 mA current (Note 1) 9.} Drain cut off current | 1p (off) Vos = 15V, Veg = -10V 0.25 0.25 0.25 nA 110. | Ta = 150C 0.50 0.50 0.50 yA AC Min Max Min Max | Min Max | Units 11.] Input capacitance | Cig, Vos = 9, Veg = -10V 2N4856, 7,8 f = 1MHz 18 18 18 pF 72. | 2N4856A, 7A, 8A 10 10 10 13.| Feedback Crs 2N4856, 7, 8 8 8 8 capacitance 4. | 2N4856A, 7A, 8A 4 3.5 3.5 15.| Drain-source on Tds (on)|Ybs = 9, '!p = 0 f = 1kHz 25 40 60 | ohms resistance Switching Min Max Min Max Min Max | Units 16.| Turn-on delay time ty (on) Vop = 10 V, Veg (on) =0 5 6 8 ns ID (on) Ves (off) AL 17.| Rise time t, 2N4856,64 20mA -10V 4642 3 4 8 2N4857, 7A 10 mA - 6V 953 2 18,] Turn-off time t (oft) 2N4858, 8A 5mA - 4V 19109 20 40 80 Notes: 1. Pulse test required, pulse width = 300us, duty cycle < 3%. N-Channel JFET FOR Analog switches Chopper Commutators PACKAGES: TO18 2N4856-61 2N4856A-61A Typical Characteristics (25C unless otherwise noted) Ip ORAIN CURRENTmA Ip-ORAIN CURRENT-mA fps DRAIN ON RESISTANCE ohms COMMON DRAIN - SOURCE CHARACTERISTICS 20 Ty = 25C 16 0 TYP. Vesiorr) =-7.5V 12 aN 8 4 -5V -6V o 0 of 08 12 16 20 Vpg -DRAIN-SOURCE VOLTAGE-V COMMON DRAIN - SOURCE CHARACTERISTICS TYP. Vesa) Tat 25C Vg + OV n 0.2N N a -1 -1.2V 0 4 8 12 16 20 Vps ORAIN-SOURCE VOLTAGE-V DRAIN - SOURCE ON RESISTANCE VS. DRAIN CURRENT 120 tps @ Vos "OV TYP. Vesiogr! =-22V 100 Fy 2 +125C 80 1 2 5 10 20 $0 100 Ip -ORAIN CURRENTmA ips ORAIN ON RESISTANCE ohms Jy DRAIN CURRENTmA os DRAIN ON RESISTANCE ohms COMMON DRAIN - SOURCE CHARACTERISTICS -2.0V -2.5V 9 0 0.4 0.8 1.2 1.6 2.0 Vpg -DRAIN-SOUACE VOLTAGEV DRAIN - SOURCE ON RESISTANCE VS. DRAIN CURRENT 100 os @Vos* OV TYP. Vesiorr) * 80 -7.5V 60 Ty = +125C 40 1 2 5 10 20 50 100 tp-ORAIN CURRENT- mA ON RESISTANCE/DRAIN CURRENT VS. CUT-OFF VOLTAGE 100 8 Igpgg ORAIN SATURATION CURRENTmA 80 80 ey 60 60 Ty = 26 fps @lg = IMA 40 \Gs OV logs @ Vpg * 20V 20 0 20 Vosior rs @ Vos * 20V = n 0 a Vesiorey GATE SOURCE CUT-OFF VOLTAGE-V 0 100 fosh NORMALIZED RESISTANCE COMMON DRAIN - SOURCE CHARACTERISTICS Ves 7 9V o yy aN , Ty = 25C TYP. Vestorri 2 -2.2V 0.6N -0.8 -1.0V \p-ORAIN CURRENTmA -1.2V 0 0.4 0.8 1.2 1.6 2.0 ps -DRAIN-SOURCE VOLTAGE-V DRAIN -SOURCE ON RESISTANCE VS. DRAIN CURRENT 100 fps @ Vgg 2 OV T, =+128C = a TYP. Vestor ry = 4.0V 60 40 20 fps DRAIN ON RESISTANCE ohms 1 2 5 10 20 50 100 tp--DRAIN CURRENT~ mA NORMALIZED DRAIN - SOURCE RESISTANCE VS, GATE - SOURCE VOLTAGE Vesionr) 20V. 100A 50 0s __ Ine OSb Ves VesiorFi 1 0 0.2 04 0.6 0.8 1.0 1Vos/Vestorr)| NORMALIZED GATE. TO-SOURCE VOLTAGE -V TO-18 (3 PIN) Packaging Information 500 230 -209 y (12.70) MIN. 030 (0.76) MAX. 048 (1.22) 028 (0.71) BOTTOM VIEW