MIL-PRF-19500-385 Semiconductor Device, Field Effect Transistors, N-Channel, Silicon Types 2N4856 Through 2N4861, 2N4856Ub Through 2N4861Ub, Jan, Jantx, Jantxv, And JansThis specification covers the performance requirements for N-channel, depletion mode, silicon J-FET transistors. Four levels of product assurance are provided for each device type as specified in MIL-PRF 19500.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15

MIL-PRF-19500/385H

TEST CONDITIONS AND COMPONENT VALUE

Type

VGS(on)

VGS(off)

VIN

ID(on) (1)

VDD



V dc

mA dc

2N4856, 2N4859

-10

464

-10

2N4857, 2N4860

-6

953

-6

2N4858, 2N4861

-4

1,910

-4

(1) Nominal value; exact value varies slightly with transistor parameters.

NOTES:

1. The input waveform has the following characteristics: tp = 200 ns; tr  1 ns; duty cycle  2 percent. It is

supplied by a generator with Zout = 50 .

2. Waveforms are monitored on an oscilloscope with the following characteristics: tr  0.75 ns; RIN  1 M;

CIN  2.5 pF.

3. These characteristics applicable to all package styles, unless otherwise noted.

FIGURE 3. Switching time test circuit.