TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803
Website: http: //www.microsemi.com
N-CHANNEL J-FET DEPLETION MODE
Equivalent to MIL-PRF-19500/375
T4-LDS-0005 Rev. 1 (063376) Page 1 of 2
DEVICES LEVELS
2N3821 MQ = JAN Equivalent
2N3822 MX = JANTX Equivalent
2N3823 MV = JANTXV Equivalent
ABSOLUTE MAXIMUM RATINGS (TC = +25°C unless otherwise noted)
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 = +25°C (1) P
T 300 mW
Operating Junction & Storage Temperature Range Tj, Tstg -55 to + 200 °C
(1) Derate linearly 1.7mW/°C for TA > +25°C.
ELECTRICAL CHARACTERISTICS (TA = +25°C, unless otherwise noted)
Parameters / Test Conditions Symbol Min. Max. Unit
Gate-Source Breakdown Voltage
VDS = 0, IG = 1.0μA dc 2N3821, 2N3822
2N3823 V(BR)GSSR 50
30 Vdc
Gate Reverse Current
VDS = 0, VGS = 30V dc
VDS = 0, VGS = 20V dc 2N3821, 2N3822
2N3823 IGSSR 0.1
0.5 ηA
Zero-Gate-Voltage Drain Current
VGS = 0, VDS = 15V dc 2N3821
2N3822
2N3823 IDSS 0.5
2.0
4.0
2.5
10
20 mA
Gate-Source Voltage
VDS = 15V dc, ID = 50μA dc
VDS = 15V dc, ID = 200μA dc
VDS = 15V dc, ID = 400μA dc
2N3821
2N3822
2N3823 VGS 0.5
1.0
1.0
2.0
4.0
7.5 Vdc
Gate-Source Cutoff Voltage
VDS = 15V dc, ID = 0.5ηA dc 2N3821
2N3822
2N3823 VGS(off)
4.0
6.0
8.0 Vdc
TO-72
(TO-206AF)
TECHNICAL DATA SHEET
6 Lake Street, Lawrence, MA 01841
1-800-446-1158 / (978) 620-2600 / Fax: ( 978) 689-0803
Website: http: //www.microsemi.com
N-CHANNEL J-FET DEPLETION MODE
Equivalent to MIL-PRF-19500/375
T4-LDS-0005 Rev. 1 (063376) Page 2 of 2
DYNAMIC CHARACTERISTICS
Parameters / Test Conditions Symbol Min. Max. Unit
Small-Signal Common Source, Short-Circuit Forward Transfer Admittance
VGS = 0, VDS = 15V dc, f = 1.0kHz 2N3821
2N3822
2N3823
|yfs|1 1500
3000
3500
4500
6500
6500
μS
Small-Signal, Common Source, Short-Circuit Output Admittance
VGS = 0, VDS = 15V dc, f = 1.0kHz 2N3821
2N3822
2N3823 |yos|
10
20
35
μS
Small-Signal, Common-Source Short-Circuit Input Capacitance
VGS = 0V dc, VDS = 15V dc, 100kHz f 1.0MHz
Ciss 6.0 pF
Small-Signal, Common-Source Reverse Transfer Capacit ance
VDS = 15V dc, VGS = 0, 100kHz f 1.0MHz 2N3821, 2N3822
2N3823 Crss 3.0
2.0 pF
Small-Signal, Common-Source, Short-Circuit Forward Transfer Admittance
VGS = 0, VDS = 15V dc, f = 100MHz
f = 100MHz
f = 200MHz
2N3821
2N3822
2N3823
|yfs|3 1500
3000
3200
μS
Small-Signal, Common-Source Short-Circuit Input Conductance
VGS = 0, VDS = 15V dc, f = 200MHz 2N3823 (only) gis 800 μS
Small-Signal, Common-Source Short-Circuit Output Conductance
VGS = 0, VDS = 15V dc, f = 200MHz 2N3823 (only) gos 200 μS
Common Source Spot Noise Figure
VGS = 0, VDS = 15V dc, RG = 1MΩ
f = 10Hz
f = 1.0kHz
2N3821, 2N3822
2N3821, 2N3822, 2N3823 NF1
5.0
2.0
dB
Common Source Spot Noise Figure
VGS = 0, VDS = 15V dc, RG = 1kΩ
f = 105MHz 2N3823 (only) NF2 2.5 dB