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LD7237

Features: ·High Power GainThe power gain is typically 53dB at 400 W level.·Simple Cooling SystemThe tube is forced-air-cooled, so that the cooling systems are greatly simplified.·PPM FocusingThe tube is PPM (Periodic Permanent Magnet)-focused, eliminating entirely the focusing power supplies and i...

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LD7237: Features: ·High Power GainThe power gain is typically 53dB at 400 W level.·Simple Cooling SystemThe tube is forced-air-cooled, so that the cooling systems are greatly simplified.·PPM FocusingThe tub...

LD7237 Data Sheet

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Part Number:
LD7237
Supply Ability:
5000

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  • 1~5000
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  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

·High Power Gain
The power gain is typically 53dB at 400 W level.
·Simple Cooling System
The tube is forced-air-cooled, so that the cooling systems are greatly simplified.
·PPM Focusing
The tube is PPM (Periodic Permanent Magnet)-focused, eliminating entirely the focusing power supplies and interlock circuits.
·Rugged Construction
The tube is designed to be rugged, therefore it is suitable for the transportable systems.
·Long Life and High Stability
The tube employs an advanced impregnated cathode with a low operating temperature for long life.
·Microdischarge Free
The tube is carefully designed to be free from microdischarge in the electron gun for long term operation,therefore it is suitable for digital communication service.




Specifications

ELECTRICAL
                                                                                           Min.          Max.         Unit
Heater Voltage .................................................................. 6.0            6.6             V
Heater Surge Current ......................................................                 4.5              A
Heater Current ..................................................................                3.0             A
Heater Warm-up Time .....................................................   300                            s
Helix Voltage ....................................................................   9.5         10.75           kV
Helix Current ....................................................................                   15            mA
Anode Voltage .................................................................. 8.55         10.25            kV
Anode Current ..................................................................                  0.5            mA
Collector Voltage ..............................................................   4.0             5.5             kV
Cathode Current ...............................................................                350              mA
RF Drive Power ................................................................                    25             mW
Load VSWR ......................................................................                   1.5
MECHANICAL
                                                                                         Min.              Max.         Unit
Temperature at output Flange ........................................                  100           °C
Air Flow ............................................................................ 195                          kg/hr
Ambient Temperature
Storage .....................................................................       40              +80          °C
Operation ..................................................................       10              +50          °C


Description

NEC LD7237 is PPM-focused traveling wave tube designed for use as final amplifier in the earth-to-satellite communications transmitter.

This is capable of delivering an output power of 400 W over the range of 17.3 to 18.1 GHz and provides a high power gain of 53 dB at 400 W output power.

Furthermore, this is of rugged and reliable design offering long-life service.

LD7237 is fully compatible with TH3694B.




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