LD7249 データシートの表示（PDF） - NEC => Renesas Technology
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LD7249 Datasheet PDF : 6 Pages
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LD7249 SERIES
GENERAL CHARACTERISTICS
ELECTRICAL
Frequency ……………………………………………… 13.75 to 14.5 GHz
Output Power
LD7249 ……………………………………………… 350 W
LD7249U …………………………………………… 400 W
Heater Voltage ………………………………………… 6.3 V
Heater Current ………………………………………… 1.2 A
Type of Cathode ……………………………………… Indirectly heated, Impregnated
Cathode Warm-up Time …………………………… 180 s
MECHANICAL
Dimensions …………………………………………… See outline
Weight ………………………………………………… 4 kg approx.
Focusing ……………………………………………… Periodic Permanent Magnet
Mounting Position …………………………………… Any
Electrical Connections ……………………………… Flying Leads
Heater, Heater-Cathode,
(Optionally, the HV lead out let position can be changeable)
Helix, Collector-1, Collector-2
and Thermal Protection
RF Connections
Input ………………………………………………… Type SMA Female
Output ……………………………………………… Mates with UBR-120 Flange, Waveguide : WR-75
Cooling ………………………………………………… Conduction
ABSOLUTE RATINGS (Note 1, 2 and 3 )
ELECTRICAL
Heater Voltage ………………………………………
Heater Surge Current ……………………………
Heater Current ………………………………………
Heater Warm-up Time ……………………………
Helix Voltage ………………………………………
Helix Current ………………………………………
Collector-1 Voltage …………………………………
Collector-1 Current …………………………………
Collector-2 Voltage …………………………………
Collector-2 Current …………………………………
Cathode Current ……………………………………
RF Drive Power ……………………………………
Load VSWR …………………………………………
min.
6.0
–
1.0
180
8.0
0
4.0
–
2.3
–
200
–
–
MECHANICAL
Heat Sink Temperature ……………………………
Min.
–40
ENVIRONMENTAL
Ambient Temperature
Storage ……………………………………………
Operating …………………………………………
Min.
–50
–40
max.
6.6
3.0
2.0
–
9.2
10
4.6
180
3.1
290
290
5
1.5 : 1
Max.
+115
Max.
+90
+100
Unit
V
A
A
s
kV
mA
kV
mA
kV
mA
mA
mW
Unit
°C
Unit
˚C
˚C
2
DATA SHEET ET0221EJ5V0DS00
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