© 1995
DATA SHEET
MES FIELD EFFECT TRANSISTOR
3SK299
RF AMP. FOR UHF TV TUNER
N-CHANNEL GaAs DUAL-GATE MES FIFLD-EFFECT TRANSISTOR
4 PIN SMALL MINI MOLD
Document No. P11034EJ1V0DS00 (1st edition)
Date Published December 1995 P
Printed in Japan
FEATURES
• Suitable for use as RF amplifier in UHF TV tuner.
• Low Crss : 0.02 pF TYP.
• High GPS : 20 dB TYP.
• Low NF : 1.1 dB TYP.
• 4 PIN SMALL MINI MOLD PACKAGE
ABSOLUTE MAXIMUM RATINGS (TA = 25 °C)
Drain to Source Voltage VDSX 13 V
Gate1 to Source Voltage VG1S –4.5 V
Gate2 to Source Voltage VG2S –4.5 V
Drain Current ID 40 mA
Total Power Dissipation PT 120 mW
Channel Temperature Tch 125 °C
Storage Temperature Tstg –55 to +125 °C
ELECTRICAL CHARACTERISTICS (TA = 25 °C)
CHARACTERISTIC SYMBOL MIN. TYP. MAX. UNIT TEST CONDITIONS
Drain Current IDSX 10 µAVDS = 13 V, VG1S = –4 V, VG2S = 0
Drain Current IDSS 52040mAVDS = 5 V, VG2S = 0, VG1S = 0
Gate1 to Source Cutoff Voltage VG1S(off) –3.5 V VDS = 5 V, VG2S = 0 , ID = 100 µA
Gate2 to Source Cutoff Voltage VG2S(off) –3.5 V VDS = 5 V, VG1S = 0, ID = 100 µA
Gate1 Reverse Current IG1SS 10 µAVDS = 0, VG1S = –4 V, VG2S = 0
Gate2 Reverse Current IG2SS 10 µAVDS = 0, VG2S = –4 V, VG1S = 0
Forward Transfer Admittance |yfs|182535msVDS = 5 V, VG2S = 1 V, ID = 10 mA
f = 1.0 kHz
Input Capacitance Ciss 0.5 1.0 1.5 pF VDS = 5 V, VG2S = 1 V, ID = 10 mA
Reverse Transfer Capacitance Crss 0.02 0.03 pF
f = 1 MHz
Power Gain GPS 16.0 20.0 dB VDS = 5 V, VG2S = 1 V, ID = 10 mA
Noise Figure NF 1.1 2.5 dB
f = 900 MHz
IDSS Classification
Unit: mA
Class U71 U72 U73 U74
Marking U71 U72 U73 U74
IDSS 5 to 15 10 to 25 20 to 35 30 to 40
PACKAGE DIMENSIONS
in millimeters
2.1±0.2
1.25±0.1
2 3
1 4
2.0±0.2
(1.25)
0.65
0.60
+0.1 –0.05
0.3
+0.1 –0.05
0.4
+0.1 –0.05
0.3
+0.1 –0.05
0.3
0.9±0.1
0.3
+0.1 –0.05
0.15
1. Source
2. Drain
3. Gate 2
4. Gate 1
0 to 0.1
(1.3)