2N4856 | 2N4857 | 2N4858
N-CHANNEL JFETS - 2
Solitron Devices, Inc. • 3301 Electronics Way, West Palm Beach, Florida 33407, USA • +1 561-848-4311 • sales@solitrondevices.com
2n4856_8-ds-revC-0319.indd
© 2019 Solitron Devices, Inc.
This document is believed to be correct at the time of publication and Solitron Devices accepts no responsibility for consequences from printing errors or inaccuracies. All specifications are subject to change without notice.
ELECTRICAL SPECIFICATIONS
Typical @ 25°C unless otherwise noted
Parameter Symbol Min. Max. Unit
Gate-Source Breakdown Voltage
VDS =0Vdc, IG = 1.0Adc V(BR)GSS -40 Vdc
Gate-Source “O” State Voltage
VDS = 15Vdc, ID = 0.5nAdc 2N4856
2N4857
2N4858
VGS(on)
-4
-2
-0.8
-10
-6
-4
Vdc
Vdc
Vdc
Gate Reverse Current
VDS = 0Vdc, VGS = -20Vdc
VDS = 0Vdc, VGS = -15Vdc
IGSS -0.25
-0.25
nA
nA
Drain Current
VDS = 15Vdc, VGS = -10Vdc
VDS = 15Vdc, VGS = 0Vdc 2N4856
2N4857
2N4858
ID(o) 50
20
8
0.25
175
100
80
nA
mA
mA
mA
Static Drain - Source “On” State Resistance
VGS = 0Vdc, ID = 1mAdc 2N4856
2N4857
2N4858
RDS(on)
25
40
60
Ω
Ω
Ω
Drain Source “On” State Voltage
VGS = 0Vdc, ID = 20mAdc
VGS = 0Vdc, ID = 10mAdc
VGS = 0Vdc, ID = 5mAdc
2N4856
2N4857
2N4858
VDS(on)
0.75
0.5
0.5
Vdc
Vdc
Vdc
Small Signal, Common Source Reverse Transfer Capacitance
VGS = -10Vdc VDS, VD = 0Vdc, f = 1.0MHz
C1 = 0.1µF, L1 =L2 ≥ 500µH
Crss 8 pF
Small Signal, Common Source Short-Circuit Input Capacitance
VGS = -10Vdc VDS, VD = 0Vdc, f = 1.0MHz
C1 = 0.1µF, C2 = 20.1m
FL1 = L2 ≥ 500µH
Ciss 8 pF
Turn On Delay Time
2N4856
2N4857
2N4858
tD(on)
6
6
10
nS
nS
nS
Rise Time
2N4856
2N4857
2N4858
tr
3
4
10
nS
nS
nS
Turn O Delay Time
2N4856
2N4857
2N4858
td(o)
25
50
100
nS
nS
nS