MG5389 X-Band Magnetron

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Electrical			Mechanical
Operating frequency	9410 ±30	MHz	Overall dimensions	see Outline
Typical peak output power	6.0	kW	Net weight	0.5 kg approx
Cathode	indirectly heated		Mounting position	any
Heater voltage (see note 1)	6.3	V	Coupler	IEC UBR100
Heater current at 6.3V (see note 2)	0.55	A	Cooling	natural
Cathode pre-heating time (minimum)(see note3)	60	s	Output	no.16waveguide
Cold impedance	see note 4		A minimum clearance of 25 mm must be maintained between the magnetron and any magnetic materials.
Input capacitance	8.0	pFmax
Temperature coefficient of frequency	see note 5

Notes

1. No reduction of heater voltage is required at any value of mean input power.
For optimum performance a value within the specified ratings must be maintained.
The magnetron heater must be protected against arcing by the use of a minimum
capacitance of 4000 pF shunted across the heater directly at the input terminals;
in some cases a capacitance as high as 2mF may be necessary depending on the
equipment design. For further details see the Magnetron Preamble.
2. Measured with heater voltage of 6.3 V and no anode input power, the heater
current limits are 0.5 A minimum, 0.6 A maximum.
3. For ambient temperatures above 0 ℃. For ambient temperatures between
0 and -55 ℃, cathode pre-heating time is 45 seconds minimum.
4. The impedance of the magnetron measured at the operating frequency when not oscillating
will be such as to give a v.s.w.r. of at least 6:1, with a voltage minimum 16.5 to
22.5 mm from the output flange toward the anode.
5. Design test only. The maximum frequency change with
anode temperature change (after warming) is -0.25 MHz/℃.

 

OUT LINE
(All dimensions without limits are nominal)