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TetraFET
D1020UK
METAL GATE RF SILICON FET
MECHANICAL DATA
C (2 pls)
B
G (typ)
2 1
H D
3
P (2 pls) A
5
4
GOLD METALLISED MULTI-PURPOSE SILICON DMOS RF FET 150W - 28V - 400MHz PUSH-PULL
FEATURES
* EXTRA LOW Crss
E (4 pls) F I
N
M
O
J
K
* SIMPLIFIED AMPLIFIER DESIGN
DRAIN 1 GATE 2
DR
PIN 1 PIN 3 PIN 5 SOURCE (COMMON) DRAIN 2 GATE 1 DIM A B C D E F G H I J K M N O P Millimetres 19.05 10.77 45 9.78 5.71 27.94 1.52R 10.16 22.22 0.13 2.72 1.70 5.08 34.03 1.57R Tol. 0.50 0.13 5 0.13 0.13 0.13 0.13 0.13 MAX 0.02 0.13 0.13 0.50 0.13 0.08 PIN 2 PIN 4
* SUITABLE FOR BROAD BAND APPLICATIONS * SIMPLE BIAS CIRCUITS
Inches 0.75 0.424 45 0.385 0.225 1.100 0.060R 0.400 0.875 0.005 0.107 0.067 0.200 1.340 0.062R
Tol. 0.020 0.005 5 0.005 0.005 0.005 0.005 0.005 MAX 0.001 0.005 0.005 0.020 0.005 0.003
* LOW NOISE * HIGH GAIN - 10 dB MINIMUM
APPLICATIONS
* HF/VHF/UHF COMMUNICATIONS from 1 MHz to 400 MHz
ABSOLUTE MAXIMUM RATINGS (Tcase = 25C unless otherwise stated)
PD BVDSS BVGSS ID(sat) Tstg Tj * Per Side Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Prelim. 11/00
Power Dissipation Drain - Source Breakdown Voltage * Gate - Source Breakdown Voltage * Drain Current * Storage Temperature Maximum Operating Junction Temperature
389W 70V 20V 20A -65 to 150C 200C
D1020UK
ELECTRICAL CHARACTERISTICS (Tcase = 25C unless otherwise stated) Parameter Test Conditions Min.
PER SIDE
BVDSS IDSS IGSS VGS(th) gfs GPS Drain-Source Breakdown Voltage Zero Gate Voltage Drain Current Gate Leakage Current Gate Threshold Voltage* Forward Transconductance* Common Source Power Gain Drain Efficiency Load Mismatch Tolerance Input Capacitance Output Capacitance VGS = 0 VDS = 28V VGS = 20V ID = 10mA VDS = 10V PO = 150W VDS = 28V f = 400MHz IDQ = 2A ID = 100mA VGS = 0 VDS = 0 VDS = VGS ID = 5A 1 4 10 50 20:1 VGS = -5V f = 1MHz VGS = 0 VGS = 0 f = 1MHz f = 1MHz 70
Typ.
Max. Unit
V 5 1 7 mA
mA
V S dB % --
TOTAL DEVICE
h
VSWR Ciss Coss Crss
PER SIDE
VDS = 28V VDS = 28V 300 150 10 pF pF pF
Reverse Transfer Capacitance VDS = 28V
* Pulse Test:
Pulse Duration = 300 ms , Duty Cycle 2%
HAZARDOUS MATERIAL WARNING
The ceramic portion of the device between leads and metal flange is beryllium oxide. Beryllium oxide dust is highly toxic and care must be taken during handling and mounting to avoid damage to this area. THESE DEVICES MUST NEVER BE THROWN AWAY WITH GENERAL INDUSTRIAL OR DOMESTIC WASTE.
THERMAL DATA
RTHj-case Thermal Resistance Junction - Case Max. 0.45C / W
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 11/00
D1020UK

3RXW :
(IILFLHQF\

9GV 9 ,GT $
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9GV 9 ,GT $
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3LQ:
3RXW:
Figure 1. Output Power Vs Input Power
Figure 2. Efficiency Vs. Output Power

*DLQ G%
0+] 0+]
9GV 9 ,GT $
3RXW:
Figure 3. Gain Vs Output Power
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 11/00
D1020UK

=6RSW

,PSHGDQFHPHDVXUHGJDWHWRJDWH

0DWFKLQJ 1HWZRUN
Optimum Source Impedence

=/RSW

,PSHGDQFHPHDVXUHGGUDLQWRGUDLQ

Optimum Load Impedence
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk

I 0+]
=/ 5 M;

=6RSW
I 0+]
=6 5 M;

0DWFKLQJ 1HWZRUN
=/RSW
Prelim. 11/00
D1020UK
L2
G a te - B ia s
100n T2 1n
10k 100k L1 D 1020U K 1n 12 1n T4
100n 1000u
28V
820K
680pF T6
T1
1u 2 -1 8 p F 47pF 90pF 2 -1 8 p F
680pF 1u T3 D 1020U K T5
175 MHz Test Fixture
T1,2,3 7cm Storm Products EXE 18 19/30 S1TW coaxial cable on Siemens A1 x 1 T4,5 T6 L1 L2 2 hole core
14cm Storm products EXE18 19/30 S1TW coaxial cable 11cm Storm products EXE 18 19/30 S1TW coaxial cable 6 turns 1.2mm dia wire, 5mm internal diameter 1.5 turns 0.9mm dia wire on Siemens A1 x 1 2 hole core
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 11/00
D1020UK
+28V G a te -B ia s
47K 1nF 7 x 4m m c o n ta c t p a d 7x4mm c o n ta c t p a d D 1020U K 0 .1 u F
100uF
15 L1
620pF
100K
620pF 2 -1 8 p F T1 2 -1 8 p F T3 T2 27pF 47pF 2 0 -5 5 p F T5
T4
L2 620pF
620pF T6 2 -1 8 p F
620pF 7 x 4m m c o n ta c t p a d D 1020U K
7x4mm c o n ta c t p a d
400 MHz Test Fixture
T1 T2,3,4,5 T6 L1 11cm 50 Ohm UT47 semi-rigid coax 8.9cm 18 Ohm UT62-18 semi-rigid coax 9.4cm 50 Ohm UT85 semi-rigid coax 5.5 turns 18swg enamelled copper wire on Fair-Rite FT50B-43 ferrite core L2 6 turns 18swg enamelled copper wire, 3.5mm internal diameter
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk
Prelim. 11/00

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