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BF998WR 반도체 회로 부품 판매점

N-channel dual-gate MOS-FET



NXP Semiconductors 로고
NXP Semiconductors
BF998WR 데이터시트, 핀배열, 회로
DISCRETE SEMICONDUCTORS
DATA SHEET
BF998WR
N-channel dual-gate MOS-FET
Product specification
Supersedes data of 1995 Apr 25
File under Discrete Semiconductors, SC07
1997 Sep 05


BF998WR 데이터시트, 핀배열, 회로
Philips Semiconductors
N-channel dual-gate MOS-FET
Product specification
BF998WR
FEATURES
High forward transfer admittance
Short channel transistor with high forward transfer
admittance to input capacitance ratio
Low noise gain controlled amplifier up to 1 GHz.
APPLICATIONS
VHF and UHF applications with 12 V supply voltage,
such as television tuners and professional
communications equipment.
DESCRIPTION
Depletion type field-effect transistor in a plastic
microminiature SOT343R package with source and
substrate interconnected. The transistor is protected
against excessive input voltage surges by integrated
back-to-back diodes between gates and source.
CAUTION
The device is supplied in an antistatic package. The
gate-source input must be protected against static
discharge during transport or handling.
PINNING
PIN
1
2
3
4
SYMBOL
DESCRIPTION
s, b source
d drain
g2 gate 2
g1 gate 1
34
d
g2
g1
21
Top view
MAM198
s,b
Marking code: MB.
Fig.1 Simplified outline (SOT343R) and symbol.
QUICK REFERENCE DATA
SYMBOL
VDS
ID
Ptot
Tj
yfs
Cig1-s
Crs
F
PARAMETER
drain-source voltage
drain current
total power dissipation
operating junction temperature
forward transfer admittance
input capacitance at gate 1
reverse transfer capacitance
noise figure
CONDITIONS
f = 1 MHz
f = 800 MHz
MIN.
TYP.
24
2.1
25
1
MAX.
12
30
300
150
UNIT
V
mA
mW
°C
mS
pF
fF
dB
1997 Sep 05
2




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