2

LD7215, LD7215C, LD7215D

GENERAL CHARACTERISTICS

ELECTRICAL

Frequency ……………………………………………… 5.85 to 6.425 GHz

Cathode ………………………………………………… Indirectly heated, Impregnated

Heater Voltage

…………………………………… 6.3 V

Heater Current

…………………………………… 3.9 A

MECHANICAL

Dimensions …………………………………………… See Outline

Focusing

……………………………………………… Periodic Permanent Magnet

Electrical Connections ……………………………… Flying Leads (LD7215, LD7215D)

AMP LGH 863023 Plug (LD7215C)

RF Connectors

Input ………………………………………………… Type SMA Female

Output ……………………………………………… Mates with CPR 137 Flange

Mounting Position …………………………………… Vertical (cathode down) or Horizontal

Weight ………………………………………………… 30 kg approx.

Cooling ………………………………………………… Forced Air

ABSOLUTE RATINGS (Note 1, 2, 3 and 4 )

ELECTRICAL

Min.

Max.

Heater Voltage ………………………………………

6.0

6.6

V

Heater Surge Current ………………………………

–8

A

Heater Current ………………………………………

35

A

HeaterWarm-up Time

……………………………

300

–

s

Collector Voltage ……………………………………

8.0

9.5

kV

Helix Voltage

………………………………………

12.5

13.7

kV

Accelerating Anode Voltage ………………………

10.0

13.0

kV

Collector Current ……………………………………

–

1.5

A

Helix Current

………………………………………

–30

mA

Accelerating Anode Current

……………………

–0.5

1.0

mA

Collector Dissipation ………………………………

–

13.3

kW

Helix Dissipation ……………………………………

–400

W

Reflected Power ……………………………………

–100

W

Load VSWR …………………………………………

–

1.5:1

MECHANICAL

Collector Temperature ……………………………

–300

°C

Cooling Air Temperature (Inlet) …………………

–20

45

°C

Cooling Air Flow ……………………………………

720

–

kg/hr