BF998B-GS18 Vishay, BF998B-GS18 Datasheet - Page 6

• Manufacturer Part Number: BF998B-GS18
• Manufacturer: Vishay

Specifications of BF998B-GS18

• Application: UHF
• Channel Type: N
• Channel Mode: Depletion
• Continuous Drain Current: 0.03A
• Drain Source Voltage (max): 12V
• Power Gain (typ)@vds: 28@8VdB
• Noise Figure (max): 1.5(Typ)dB
• Package Type: SOT-143
• Pin Count: 3 +Tab
• Forward Transconductance (typ): 0.024S
• Input Capacitance (typ)@vds: 2.1@8V@Gate 1/1.1@8V@Gate 2pF
• Output Capacitance (typ)@vds: 1.05@8VpF
• Reverse Capacitance (typ): 0.025@8VpF
• Operating Temp Range: -65C to 150C
• Mounting: Surface Mount
• Number Of Elements: 1
• Power Dissipation (max): 200mW
• Screening Level: Military
• Lead Free Status / Rohs Status: Compliant

BF998 / BF998R / BF998RW
Vishay Semiconductors
S
www.vishay.com
6
12
12960
12973
180 °
–150 °
–j0.2
150 °
j0.2
Figure 13. Reverse Transmission Coefficient
0
1300 MHz
Figure 12. Input Reflection Coefficient
–j0.5
–120 °
j0.5
120 °
0.2
0.5
1300 MHz
1200
–90 °
90 °
1
–j
100
j
200
1000
0.08
2
–60 °
60 °
–j2
0.16
5
j2
100
–30 °
30 °
–j5
j5
0 °
S
S
21
22
12963
12962
–j0.2
180 °
j0.2
0
–150°
100
Figure 14. Forward Transmission Coefficient
150 °
–j0.5
Figure 15. Output Reflection Coefficient
j0.5
0.2
400
–120 °
120 °
0.5
700
1
–j
j
–90 °
90 °
1300 MHz
2
1000
1300 MHz
1
–60 °
60 °
–j2
Document Number 85011
5
j2
100
2
–j5
Rev. 1.6, 31-Aug-05
–30°
j5
30 °
0 °