TECHNICAL DATA
N-CHANNEL J-FET DEPLETION MODE
Qualified per MIL-PRF-19500/375
Devices
2N3821
2N3822
2N3823
Qualified Level
JANTX
JANTXV
MAXIMUM RATINGS
Parameters / Test Conditions
Gate-Source Voltage
Drain-Source Voltage
Drain-Gate Voltage
Gate Current
Power Dissipation
T
A
= +25
0
C
(1)
Operating Junction & Storage Temperature Range
Symbol
V
GSR
V
DS
V
DG
I
GF
P
T
T
j
, T
stg
2N3821
2N3822
50
50
50
2N3823
30
30
30
Unit
V
V
V
mA
mW
0
C
10
300
-55 to +200
TO-72*
(TO-206AF)
*See appendix A for
package outline
(1) Derate linearly 1.7 mW/
0
C for T
A
+25
0
C.
ELECTRICAL CHARACTERISTICS (T
A
= 25
0
C unless otherwise noted)
Parameters / Test Conditions
Symbol
Gate-Source Breakdown Voltage
V
DS
= 0, I
G
= 1.0
µAdc
Gate Reverse Current
V
DS
= 0, V
GS
= 30 Vdc
V
DS
= 0, V
GS
= 20 Vdc
Zero-Gate-Voltage Drain Current
V
GS
= 0, V
DS
= 15 Vdc
2N3821, 2N3822
2N3823
2N3821, 2N3822
2N3823
2N3821
2N3822
2N3823
2N3821
2N3822
2N3823
2N3821
2N3822
2N3823
V
(BR)GSSR
Min.
50
30
Max.
Units
Vdc
ηA
I
GSSR
0.1
0.5
0.5
2.0
4.0
0.5
1.0
1.0
2.5
10
20
2.0
4.0
7.5
4.0
6.0
8.0
I
DSS
mA
Gate-Source Voltage
V
DS
= 15 Vdc, I
D
= 50 µAdc
V
DS
= 15 Vdc, I
D
= 200 µAdc
V
DS
= 15 Vdc, I
D
= 400 µAdc
Gate-Source Cutoff Voltage
V
DS
= 15 Vdc, I
D
= 0.5
ηAdc
V
GS
Vdc
V
GS(off)
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
Small-Signal Common Source, Short-Circuit Forward Transfer Admittance
V
GS
= 0, V
DS
= 15 Vdc, f = 1.0 kHz
2N3821
2N3822
2N3823
Small-Signal Common Source, Short-Circuit Output Admittance
V
GS
= 0, V
DS
= 15 Vdc, f = 1.0 kHz
2N3821
2N3822
2N3823
Symbol
|y
fs
|
1
Min.
1500
3000
3500
Max.
4500
6500
6500
10
20
35
Units
µS
|y
os
|
µS
Small-Signal, Common-Source Short-Circuit Input Capacitance
V
GS
= 0, V
DS
= 15 Vdc, 100 kHz
≤
f
≤
1.0 MHz
C
iss
C
rss
6.0
pF
pF
Small-Signal, Common-Source Reverse Transfer Capacitance
V
DS
= 15 Vdc, V
GS
= 0, 100 kHz
≤
f
≤
1.0 MHz
2N3821, 2N3822
2N3823
Small-Signal Common Source, Short-Circuit Forward Transfer Admittance
V
GS
= 0, V
DS
= 15 Vdc, f = 100 MHz
2N3821
f = 100 MHz
2N3822
f = 200 MHz
2N3823
3.0
2.0
1500
3000
3200
µS
|y
fs
|
2
Small-Signal, Common-Source Short-Circuit Input Conductance
V
GS
= 0, V
DS
= 15 Vdc, f = 200 MHz
V
GS
= 0, V
DS
= 15 Vdc, f = 200 MHz
2N3823 (only)
2N3823 (only)
g
is
g
os
NF
1
NF
2
800
200
µS
µS
Small-Signal, Common-Source Short-Circuit Output Conductance
Common Source Spot Noise Figure
V
GS
= 0, V
DS
= 15 Vdc, R
G
= 1MΩ
f = 10 Hz
f = 1.0 kHz
2N3821, 2N3822
2N3821, 2N3822, 2N3823
5.0
2.0
dB
Common Source Spot Noise Figure
V
GS
= 0, V
DS
= 15 Vdc, R
G
= 1kΩ
f = 105 MHz
2N3823 (only)
dB
2.5
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 794-1666 / Fax: (978) 689-0803
120101
Page 2 of 2