ARF473 MICROSEMI, ARF473 Datasheet - Page 4

• Manufacturer Part Number: ARF473
• Manufacturer: MICROSEMI

Specifications of ARF473

• Lead Free Status / Rohs Status: Compliant

ARF473
APT’s products are covered by one or more of U.S.patents 4,895,810 5,045,903 5,089,434 5,182,234 5,019,522
5,262,336 6,503,786 5,256,583 4,748,103 5,283,202 5,231,474 5,434,095 5,528,058 and foreign patents. US and Foreign patents pending. All Rights Reserved.
.107
.060
0.400
J1
900
800
700
600
500
400
300
200
100
0.200
0
C1
80
81.36 MHz Test amplifier Po = 500W @130 V
T1
Package Dimensions (inches)
P o Watts
Peak Output Power vs... Vdd
C6
C7
C8
C9
100
Drain Supply Voltage Vdd
.225
R2
R1
1
3
C2
TL2
Vg1
Vg2
TL1
Duty Cycle
Max
1.100
.435
1.340
120
DUT
2
4
140
5
L1
TL3
TL4
L2
.065 rad 2 PL
.210
160
0.390
C3
C4
.005
C5
TL6
TL5
1.2
1
0.8
0.6
0.4
0.2
0
C10
T2
Pin 1. Drain
L3
2. Drain
3. Gate
4. Gate
5. Source
130V
Notes:
The value of L2 must be adjusted as the
supply voltage is changed to maintain
resonance in the output circuit. At 81 MHz its
value changes from approximately 50 nH at
100V to 70 nH at 165V.
The duty cycle past 100V must be reduced to
insure power dissipation is within the limits of
the device. Maximum pulse length should be
100mS or less. See figure 7.
J2
+
-
C1 10-80 pF trimmer ARCO 462
C2-4 1000 pF NPO 500V chip
C5-C9 10 nF 500V chip
C10 .47 uF Ceramic 500V
L1 680 nH 12t #24 enam .312" dia
L2 55 nH 3t #18 enam .25" dia
L3 2t #20 on Fair-Rite 2643006302 bead, ~ 2 uH
R1-2 100 Ω 0.5 W
T1 4:1 RF transformer on two beads same as L3.
T2 1:1 coax balun. Fair-Rite 2643665902 bead
TL1-2 Printed line L=1.2" w=.23"
TL3-4 Printed line L=.25" w=.23"
TL5-6 Printed line L=0.25" w=.23"
0.23" wide stripline on FR-4 board is ~32Ω Z o
on 1.5" RG-303 50 Ω teflon coax.
HAZARDOUS MATERIAL
The ceramic portion of the
device
mounting flange is beryllium
oxide. Beryllium oxide dust is
highly toxic when inhaled. Care
must be taken during handling
and mounting to avoid damage
to this area.
must never be thrown away with
general industrial or domestic
waste.
between
WARNING
These devices
leads
and