BF988
Vishay Telefunken
www.vishay.de • FaxBack +1-408-970-5600
Rev. 4, 08-Jul-99 1 (8)
Document Number 85007
N–Channel Dual Gate MOS-Fieldeffect Tetrode,
Depletion Mode
Electrostatic sensitive device.
Observe precautions for handling.
Applications
Input- and mixer stages especially VHF- and UHF- tuners.
Features
C0068 Integrated gate protection diodes
C0068 High cross modulation performance
C0068 Low noise figure
C0068 High gain
C0068 High AGC-range
C0068 Low feedback capacitance
C0068 Low input capacitance
1
4
3
2
94 9307 96 12647
BF988 Marking: BF988
Plastic case (TO 50)
1 = Drain, 2 = Source, 3 = Gate 1, 4 = Gate 2
G
2
G
1
D
S
12623
Absolute Maximum Ratings
T
amb
= 25C0095C, unless otherwise specified
Parameter Test Conditions Type Symbol Value Unit
Drain - source voltage V
DS
12 V
Drain current I
D
30 mA
Gate 1/Gate 2 - source peak current ±I
G1/G2SM
10 mA
Total power dissipation T
amb
≤ 60 C0176C P
tot
200 mW
Channel temperature T
Ch
150 C0176C
Storage temperature range T
stg
–55 to +150 C0176C
Maximum Thermal Resistance
T
amb
= 25C0095C, unless otherwise specified
Parameter Test Conditions Symbol Value Unit
Channel ambient on glass fibre printed board (40 x 25 x 1.5) mm
3
plated with 35C0109m Cu
R
thChA
450 K/W