
J309, J310
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2
ELECTRICAL CHARACTERISTICS (T
A
= 25°C unless otherwise noted)
Characteristic Symbol Min Typ Max Unit
OFF CHARACTERISTICS
Gate−Source Breakdown Voltage
(I
G
= −1.0 mAdc, V
DS
= 0)
V
(BR)GSS
−25 − − Vdc
Gate Reverse Current
(V
GS
= −15 Vdc, V
DS
= 0, T
A
= 25°C)
(V
GS
= −15 Vdc, V
DS
= 0, T
A
= +125°C)
I
GSS
−
−
−
−
−1.0
−1.0
nAdc
mAdc
Gate Source Cutoff Voltage
(V
DS
= 10 Vdc, I
D
= 1.0 nAdc) J309
J310
V
GS(off)
−1.0
−2.0
−
−
−4.0
−6.5
Vdc
ON CHARACTERISTICS
Zero−Gate−Voltage Drain Current
(1)
(V
DS
= 10 Vdc, V
GS
= 0) J309
J310
I
DSS
12
24
−
−
30
60
mAdc
Gate−Source Forward Voltage
(V
DS
= 0, I
G
= 1.0 mAdc)
V
GS(f)
− − 1.0 Vdc
SMALL−SIGNAL CHARACTERISTICS
Common−Source Input Conductance
(V
DS
= 10 Vdc, I
D
= 10 mAdc, f = 100 MHz) J309
J310
Re(y
is
)
−
−
0.7
0.5
−
−
mmhos
Common−Source Output Conductance
(V
DS
= 10 Vdc, I
D
= 10 mAdc, f = 100 MHz)
Re(y
os
) − 0.25 − mmhos
Common−Gate Power Gain
(V
DS
= 10 Vdc, I
D
= 10 mAdc, f = 100 MHz)
G
pg
− 16 − dB
Common−Source Forward Transconductance
(V
DS
= 10 Vdc, I
D
= 10 mAdc, f = 100 MHz)
Re(y
fs
) − 12 − mmhos
Common−Gate Input Conductance
(V
DS
= 10 Vdc, I
D
= 10 mAdc, f = 100 MHz)
Re(y
ig
) − 12 − mmhos
Common−Source Forward Transconductance
(V
DS
= 10 Vdc, I
D
= 10 mAdc, f = 1.0 kHz) J309
J310
g
fs
10000
8000
−
−
20000
18000
mmhos
Common−Source Output Conductance
(V
DS
= 10 Vdc, I
D
= 10 mAdc, f = 1.0 kHz)
g
os
− − 250
mmhos
Common−Gate Forward Transconductance
(V
DS
= 10 Vdc, I
D
= 10 mAdc, f = 1.0 kHz) J309
J310
g
fg
−
−
13000
12000
−
−
mmhos
Common−Gate Output Conductance
(V
DS
= 10 Vdc, I
D
= 10 mAdc, f = 1.0 kHz) J309
J310
g
og
−
−
100
150
−
−
mmhos
Gate−Drain Capacitance
(V
DS
= 0, V
GS
= −10 Vdc, f = 1.0 MHz)
C
gd
− 1.8 2.5 pF
Gate−Source Capacitance
(V
DS
= 0, V
GS
= −10 Vdc, f = 1.0 MHz)
C
gs
− 4.3 5.0 pF
FUNCTIONAL CHARACTERISTICS
Equivalent Short−Circuit Input Noise Voltage
(V
DS
= 10 Vdc, I
D
= 10 mAdc, f = 100 Hz)
e
n
− 10 −
nVń Hz
Ǹ
1. Pulse Test: Pulse Width v 300 ms, Duty Cycle v 3.0%.