2N5638, 2N5639 2N5638 is a Preferred Device JFET Chopper Transistors NChannel Depletion NChannel Junction Field Effect Transistors, depletion mode (Type A) designed for chopper and highspeed switching applications. Features 2N5638, 2N5639 ELECTRICAL CHARACTERISTICS (T = 25C unless otherwise noted) A Characteristic Symbol Min Max Unit OFF CHARACTERISTICS GateSource Breakdown Voltage V 35 Vdc (BR)GSS (I = 1.0 Adc, V = 0) G DS Gate Reverse Current I 1.0 nAdc GSS (V = 15 Vdc, V = 0) 1.0 Adc GS DS (V = 15 Vdc, V = 0, T = 100C) GS DS A DrainCutoff Current I Adc D(off) (V = 15 Vdc, V = 12 Vdc) 2N5638 1.0 DS GS (V = 15 Vdc, V = 12 Vdc, T = 100C) 2N5638 1.0 DS GS A (V = 15 Vdc, V = 8.0 Vdc) 2N5639 1.0 DS GS (V = 15 Vdc, V = 8.0 Vdc, T = 100C) 2N5639 1.0 DS GS A ON CHARACTERISTICS ZeroGateVoltage Drain Current (Note 1) 2N5638 I 50 mAdc DSS (V = 20 Vdc, V = 0) 2N5639 25 DS GS DrainSource ON Voltage V Vdc DS(on) (I = 12 mAdc, V = 0) 2N5638 0.5 D GS (I = 6.0 mAdc, V = 0) 2N5639 0.5 D GS Static DrainSource ON Resistance R DS(on) (I = 1.0 mAdc, V = 0) 2N5638 30 D GS 2N5639 60 SMALLSIGNAL CHARACTERISTICS Static DrainSource ON Resistance R DS(on) (V = 0, I = 0, f = 1.0 kHz) 2N5638 30 GS D 2N5639 60 Input Capacitance C 10 pF iss (V = 0, V = 12 Vdc, f = 1.0 MHz) DS GS Reverse Transfer Capacitance C 4.0 pF rss (V = 0, V = 12 Vdc, f = 1.0 MHz) DS GS SWITCHING CHARACTERISTICS (V = 10 Vdc, V = 0, V = 10 Vdc, R = 50 . See Figure 1 on page 1) DD GS(on) GS(off) G TurnOn Delay Time I = 12 mAdc, 2N5638 t 4.0 ns D(on) d(on) I = 6.0 mAdc, 2N5639 6.0 D(on) Rise Time I = 12 mAdc, 2N5638 t 5.0 ns D(on) r I = 6.0 mAdc, 2N5639 8.0 D(on) TurnOff Delay Time I = 12 mAdc, 2N5638 t 5.0 ns D(on) d(off) I = 6.0 mAdc, 2N5639 10 D(on) Fall Time I = 12 mAdc, 2N5638 t 10 ns D(on) f I = 6.0 mAdc, 2N5639 20 D(on) 1. Pulse Width 300 s, Duty Cycle 3.0%.