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BF244A View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
View to exact match
BF244A
Fairchild
Fairchild Semiconductor Fairchild
BF244A Datasheet PDF : 6 Pages
1 2 3 4 5 6
N-Channel RF Amplifier
(continued)
Electrical Characteristics
Symbol
Parameter
TA = 25°C unless otherwise noted
Test Conditions
Min Typ Max Units
OFF CHARACTERISTICS
V(BR)GSS
Gate-Source Breakdown Voltage
IGSS
Gate Reverse Current
VGSS(off)
Gate-Source Cutoff Voltage
VGS
Gate-Source Voltage
IG = 1.0 µA, VDS = 0
VGS = - 20 V, VDS = 0
VDS = 15 V, ID = 10 nA
VDS = 15 V, ID = 200 µA
244A
244B
244C
30
- 0.5
- 0.4
- 1.6
- 3.2
V
5.0 nA
- 8.0 V
- 2.2 V
- 3.8 V
- 7.5 V
ON CHARACTERISTICS
IDSS
Zero-Gate Voltage Drain Current
VDS = 15 V, VGS = 0
244A 2.0
244B 6.0
244C 12
6.5 mA
15 mA
25 mA
SMALL SIGNAL CHARACTERISTICS
yfs
Forward Transfer Admittance
VDS = 15 V, VGS = 0, f = 1.0 kHz
3.0
6.5 mmhos
VDS = 15 V, VGS = 0, f = 200 MHz
5.6
mmhos
yos
Output Admittance
VDS = 15 V, VGS = 0, f = 1.0 kHz
40
µmhos
yrs
Reverse Transfer Admittance
VDS = 15 V, VGS = 0, f = 200 MHz
1.0
µmhos
Ciss
Input Capacitance
VDS = 20 V, VGS = - 1.0 V
3.0
pF
Crss
Reverse Transfer Capacitance
VDS = 20 V, VGS = - 1.0 V,
f = 1.0 MHz
0.7
pF
Coss
Output Capacitance
VDS = 20 V, VGS = - 1.0 V,
f = 1.0 MHz
0.9
pF
NF
Noise Figure
VDS = 15 V, VGS = 0, RG = 1.0 k,
1.5
dB
f = 100 MHz
F(Yfs)
Cut-Off Frequency
VDS = 15 V, VGS = 0
700
MHz
5
Typical Characteristics
Transfer Characteristics
20
V GS(OFF) = -4.5V
16
TA = -55 OC
T = +25 O C
A
12
T = +125O C
A
8
V DS = 15V
T = -55 OC
A
T = +25 O C
A
T = +125O C
A
4
-2.5 V
0
0
-1
-2
-3
-4
-5
VGS - GATE-SOURCE VOLTAGE(V)
Channel Resistance vs Temperature
1000
500
V GS(OFF) = -1.0V
300
200
-2.5 V
-5.0V
100
-8.0 V
50
30
20
V DS = 100mV
V =0V
GS
10
-50
0
50
100
150
TA - AMBIENT TEMPERATURE ( C)
 

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