BF998T NXP Semiconductors, BF998T Datasheet - Page 9

• Manufacturer Part Number: BF998T
• Manufacturer: NXP Semiconductors

Specifications of BF998T

• Application: VHF/UHF
• Channel Type: N
• Channel Mode: Depletion
• Continuous Drain Current: 0.03A
• Drain Source Voltage (max): 12V
• Noise Figure (max): 1(Typ)dB
• Frequency (max): 1GHz
• Package Type: SOT-143B
• Pin Count: 3 +Tab
• Input Capacitance (typ)@vds: 2.1@8V@Gate 1/1.2@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

NXP Semiconductors
1996 Aug 01
handbook, full pagewidth
Silicon N-channel dual-gate MOS-FETs
V
L1 = L4 = 200 nH; 11 turns 0.5 mm copper wire, without spacing, internal diameter 3 mm.
L2 = 2 cm, silvered 0.8 mm copper wire, 4 mm above ground plane.
L3 = 2 cm, silvered 0.5 mm copper wire, 4 mm above ground plane.
DD
= 12 V; G
S
50 Ω
input
= 3.3 mS; G
100 kΩ
1 nF
L
= 1 mS.
V DD
L1
140 kΩ
1 nF
C1
2 to 18 pF
L2
Fig.18 Gain control test circuit at f = 800 MHz.
1 nF
1 nF
C2
0.5 to 3.5 pF
V agc
270 kΩ
1.8 kΩ
V DD
9
360 Ω
1 nF
C3
0.5 to
3.5 pF
L3
V DD
L4
C4
4 to 40 pF
1 nF
1 nF
BF998; BF998R
Product specification
MGE801
50 Ω
output