BF240, BF241 Quality Semi-Conductors

,J
20 STERN AVE.
SPRINGFIELD, NEW JERSEY 07081
U.S.A.
TELEPHONE: (973) 376-2922
(212)227-6005
FAX: (973) 376-8960
BF240, BF241
NPN Silicon Epitaxial Planar Transistors
designed for emitter-grounded AM and FM amplifier stages
I*
max. Q5 #
Plastic case = JEDEC TO-92
TO-18 compatible
The case is impervious to light
Weight approximately 0.18 g
Dimensions in mm
Absolute Maximum Ratings
Symbol
Value
Unit
Collector Base Voltage
VCBO
40
V
Collector Emitter Voltage
VCEO
40
V
Emitter Base Voltage
VEBO
4
V
Collector Current
lo
25
mA
Base Current
IB
2
mA
Power Dissipation at Tamb = 25 °C
P«
3001'
mW
Junction Temperature
T]
150
CC
Storage Temperature Range
Ts
-55 .. . +150
'C
" Valid provided that leads are kept at ambient temperature at a distance ot 2 mm from case
NJ Semi-Conductors reserves the right to change test conditions, parameter limits and package dimensions without
notice. Information furnished by NJ Semi-Conductors is believed to be both accurate and reliable at the time of going
to press. However, NJ Semi-Conductors assumes no responsibility for any errors or omissions discovered in its use.
NJ Semi-Conductors encourages customers to verify that datasheets are current before placing orders.
Quality Semi-Conductors
BF240, BF241
Characteristics at Tamb = 25 °C
Symbol
Min.
Typ.
Max.
Value
hFE
hFE
67
36
-
220
125
-
Base Emitter Voltage at VCB = 1 0 V, lc = 1 mA
VBE
650
700
740
mV
Collector Cutoff Current at VCB = 20 V
ICBO
-
-
100
nA
Thermal Resistance Junction to Ambient
RlhA
-
-
420"
K/W
Collector Base Breakdown Voltage at lc = 1 0 /uA
V(BH)CBO
40
-
-
V
Collector Emitter Breakdown Voltage at lc = 2 mA
V(BR)CEO
40
-
-
V
Emitter Base Breakdown Voltage at IE = 1 0 ^A
V(BH)EBO
4
-
-
V
Gain Bandwidth Product
at VCB = 10V, lc = 1 mA, f= 100MHz
fj
-
430
400
-cre
-
0.27
-
PF
at VCB = 10V, lc = 1 mA
gs = 5 mS, t = 200 kHz
ys = (6.6 - j 3.3) mS, f = 1 00 MHz
F
F
-
1.5
1.6
3.5
dB
dB
Output Admittance
at VCB = 10 V, lc = 1 mA, f = 10.7 MHz
at VCB = 10 V, lc = 1 mA, f = 470 kHz
g«
g«
-
-
10.5
8.3
DC Current Gain
at VCE - 1 0 V, lc = 1 mA
Feedback Capacitance
at VCB= 10 V, lc = 1 mA, f = 1 MHz
BF240
BF241
BF240
BF241
fr
_
MHz
MHz
Noise Figure (emitter grounded)
11 Valid
provided that leads are kept at ambient temperature at a distance of 2 mm from case
pS
Ms