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BF994S

Vishay Telefunken
Part Number BF994S
Manufacturer Vishay Telefunken
Description N-Channel Dual Gate MOS-Fieldeffect Tetrode
Published Mar 23, 2005
Detailed Description BF994S Vishay Telefunken N–Channel Dual Gate MOS-Fieldeffect Tetrode, Depletion Mode Electrostatic sensitive device. Ob...
Datasheet PDF File BF994S PDF File

BF994S
BF994S

Overview
BF994S Vishay Telefunken N–Channel Dual Gate MOS-Fieldeffect Tetrode, Depletion Mode Electrostatic sensitive device.
Observe precautions for handling.
Applications Input- and mixer stages especially VHF TV-tuners.
Features D Integrated gate protection diodes D High cross modulation performance D Low noise figure 2 1 D High AGC-range D Low feedback capacitance D Low input capacitance G2 G1 D 94 9279 13 579 3 4 12623 BF994 Marking: MG Plastic case (SOT 143) 1=Source, 2=Drain, 3=Gate 2, 4=Gate 1 S Absolute Maximum Ratings Tamb = 25_C, unless otherwise specified Parameter Drain - source voltage Drain current Gate 1/Gate 2 - source peak current Total power dissipation Channel temperature Storage temperature range Test Conditions Type Symbol Value VDS 20 ID 30 ±IG1/G2SM 10 Ptot 200 TCh 150 Tstg –55 to +150 Unit V mA mA mW °C °C Tamb ≤ 60 °C Maximum Thermal Resistance Tamb = 25_C, unless otherwise specified Parameter Test Conditions Channel ambient on glass fibre printed board (25 x 20 x 1.
5) mm3 plated with 35mm Cu Symbol RthChA Value 450 Unit K/W Document Number 85008 Rev.
3, 20-Jan-99 www.
vishay.
de • FaxBack +1-408-970-5600 1 (7) BF994S Vishay Telefunken Electrical DC Characteristics Tamb = 25_C, unless otherwise specified Parameter Drain - source breakdown voltage Gate 1 - source breakdown voltage Gate 2 - source breakdown voltage Gate 1 - source leakage current Gate 2 - source leakage current Drain current Test Conditions ID = 10 mA, –VG1S = –VG2S = 4 V ±IG1S = 10 mA, VG2S = VDS = 0 ±IG2S = 10 mA, VG1S = VDS = 0 ±VG1S = 5 V, VG2S = VDS = 0 ±VG2S = 5 V, VG1S = VDS = 0 VDS = 15 V, VG1S = 0, VG2S = 4 V BF994S BF994SA BF994SB Type Symbol V(BR)DS ±V(BR)G1SS ±V(BR)G2SS ±IG1SS ±IG2SS IDSS IDSS IDSS –VG1S(OFF) –VG2S(OFF) 4 4 9.
5 Min 20 6 Typ Max Unit V V V nA nA mA mA mA V V 20 20 50 50 18 10.
5 18 2.
5 2.
0 Gate 1 - source cut-off voltage Gate 2 - source cut-off voltage VDS = 15 V, VG2S = 4 V, ID = 20 mA VDS = 15 V, VG1S = 0, ID = 20 mA Electrical AC Charact...


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