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BF1105 Datasheet(PDF) 2 Page - NXP Semiconductors

No. de pieza BF1105
Descripción Electrónicos  N-channel dual-gate MOS-FETs
Download  16 Pages
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Fabricante Electrónico  PHILIPS [NXP Semiconductors]
Página de inicio  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

BF1105 Datasheet(HTML) 2 Page - NXP Semiconductors

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1997 Dec 02
2
Philips Semiconductors
Product specification
N-channel dual-gate MOS-FETs
BF1105; BF1105R; BF1105WR
FEATURES
• Short channel transistor with high
forward transfer admittance to input
capacitance ratio
• Low noise gain controlled amplifier
up to 1 GHz.
• Internal self-biasing circuit to
ensure good cross-modulation
performance during AGC and good
DC stabilization.
APPLICATIONS
• VHF and UHF applications with 5 V
supply voltage, such as television
tuners and professional
communications equipment.
DESCRIPTION
Enhancement type N-channel
field-effect transistor with source and
substrate interconnected. Integrated
diodes between gates and source
protect against excessive input
voltage surges. The BF1105,
BF1105R and BF1105WR are
encapsulated in the SOT143B,
SOT143R and SOT343R plastic
packages respectively.
PINNING
PIN
DESCRIPTION
1
source
2
drain
3
gate 2
4
gate 1
Fig.1
Simplified outline
(SOT143B).
BF1105 marking code: NEp.
page
Top view
MSB014
2
1
3
4
Fig.2
Simplified outline
(SOT143R).
BF1105R marking code: NAp.
handbook, 2 columns
Top view
MSB035
1
2
4
3
Fig.3
Simplified outline
(SOT343R).
BF1105WR marking code: NA.
alfpage
Top view
MSB842
21
4
3
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
VDS
drain-source voltage
−−
7V
ID
drain current
−−
30
mA
Ptot
total power dissipation
Tamb ≤ 80 °C
−−
200
mW
yfs
forward transfer admittance
25
31
mS
Cig1-ss
input capacitance at gate 1
2.2
2.7
pF
Crss
reverse transfer capacitance
f = 1 MHz
25
40
fF
F
noise figure
f = 800 MHz
1.7
2.5
dB
Xmod
cross-modulation
input level for k = 1% at 40 dB AGC 100
−−
dB
µV
Tj
operating junction temperature
−−
150
°C
CAUTION
This product is supplied in anti-static packing to prevent damage caused by electrostatic discharge during transport
and handling. For further information, refer to Philips specs.: SNW-EQ-608, SNW-FQ-302A and SNW-FQ-302B.


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