TECHNICAL DATA
N-CHANNEL J-FET DEPLETION MODE
Qualified per MIL-PRF-19500/375
Devices Qualified Level
2N3821 2N3822 2N3823
JANTX
JANTXV
MAXIMUM RATINGS
Parameters / Test Conditions
Symbol 2N3821
2N3822
2N3823
Unit
Gate-Source Voltage VGSR 50 30 V
Drain-Source Voltage VDS 50 30 V
Drain-Gate Voltage VDG 50 30 V
Gate Current IGF 10 mA
Power Dissipation TA = +250C (1) PT 300 mW
Operating Junction & Storage Temperature Range Tj, Tstg -55 to +200 0C
(1) Derate linearly 1.7 mW/0C for TA +25 0C.
TO-72*
(TO-206AF)
*See appendix A for
package outline
ELECTRICAL CHARACTERISTICS (TA = 250C unless otherwise noted)
Parameters / Test Conditions Symbol Min. Max. Units
Gate-Source Breakdown Voltage
VDS = 0, IG = 1.0 µAdc 2N3821, 2N3822
2N3823
V(BR)GSSR
50
30
Vdc
Gate Reverse Current
VDS = 0, VGS = 30 Vdc 2N3821, 2N3822
VDS = 0, VGS = 20 Vdc 2N3823
IGSSR
0.1
0.5
ηA
Zero-Gate-Voltage Drain Current
VGS = 0, VDS = 15 Vdc 2N3821
2N3822
2N3823
IDSS
0.5
2.0
4.0
2.5
10
20
mA
Gate-Source Voltage
VDS = 15 Vdc, ID = 50 µAdc 2N3821
VDS = 15 Vdc, ID = 200 µAdc 2N3822
VDS = 15 Vdc, ID = 400 µAdc 2N3823
VGS
0.5
1.0
1.0
2.0
4.0
7.5
Vdc
Gate-Source Cutoff Voltage
VDS = 15 Vdc, ID = 0.5 ηAdc 2N3821
2N3822
2N3823
VGS(off)
4.0
6.0
8.0
Vdc
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 794-1666 / Fax: (978) 689-0803
120101
Page 1 of 2
2N3821, 2N3822, 2N3823 JAN SERIES
Parameters / Test Conditions Symbol Min. Max. Units
Small-Signal Common Source, Short-Circuit Forward Transfer Admittance
VGS = 0, VDS = 15 Vdc, f = 1.0 kHz 2N3821
2N3822
2N3823
|yfs|1
1500
3000
3500
4500
6500
6500
µS
Small-Signal Common Source, Short-Circuit Output Admittance
VGS = 0, VDS = 15 Vdc, f = 1.0 kHz 2N3821
2N3822
2N3823
|yos|
10
20
35
µS
Small-Signal, Common-Source Short-Circuit Input Capacitance
VGS = 0, VDS = 15 Vdc, 100 kHz ≤ f ≤ 1.0 MHz Ciss
6.0 pF
Small-Signal, Common-Source Reverse Transfer Capacitance
VDS = 15 Vdc, VGS = 0, 100 kHz ≤ f ≤ 1.0 MHz
2N3821, 2N3822
2N3823
Crss
3.0
2.0
pF
Small-Signal Common Source, Short-Circuit Forward Transfer Admittance
VGS = 0, VDS = 15 Vdc, f = 100 MHz 2N3821
f = 100 MHz 2N3822
f = 200 MHz 2N3823
|yfs|2
1500
3000
3200
µS
Small-Signal, Common-Source Short-Circuit Input Conductance
VGS = 0, VDS = 15 Vdc, f = 200 MHz 2N3823 (only) gis
800
µS
Small-Signal, Common-Source Short-Circuit Output Conductance
VGS = 0, VDS = 15 Vdc, f = 200 MHz 2N3823 (only) gos
200
µS
Common Source Spot Noise Figure
VGS = 0, VDS = 15 Vdc, RG = 1MΩ
f = 10 Hz 2N3821, 2N3822
f = 1.0 kHz 2N3821, 2N3822, 2N3823
NF1
5.0
2.0
dB
Common Source Spot Noise Figure
VGS = 0, VDS = 15 Vdc, RG = 1kΩ
f = 105 MHz 2N3823 (only)
NF2
2.5
dB
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 794-1666 / Fax: (978) 689-0803
120101
Page 2 of 2
