Toshiba 2M248 series is a fixed frequency continuous wave magnetron intended for use in microwave cooking appliances. The average output power is 1030 watts to a matched load at 330 mA anode current in the frequency range from 2450 to 2470 MHz. The tube is a packaged magnet type and requires forced air cooling. The output is fed either into a rectangular waveguide or into an oven cavity directly.
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Technical Specifications
Toshiba 2M248 technical specifications.
General
Frequency (matched load)
2460 ± 10MHz
Filament Voltage (Nominal)
3.15V
Filament Current
10.0A
Cold Filament Resistance
0.03ohms
Anode Potential
to be ground
Filament Potential
Negative high voltage
Physical Dimensions
See outline drawing
Terminal Connection
See outline drawing
Mounting Position
Any
Output Coupling
See outline drawing
Magnetic Field
Ferrite magnet packaged
Cooling
Forced air (Side blow)
Weight (approx.)
830g
Type of Cathode
Directly heated thoriated tungsten filament
Absolute Maximum Rating - Filament Voltage (Min)
2.7V
Absolute Maximum Rating - Filament Voltage (Max)
3.6V
Absolute Maximum Rating - Cathode Preheating Time
0s
Absolute Maximum Rating - Peak Anode Voltage
4.85kV
Absolute Maximum Rating - Average Anode Current
380mAdc
Absolute Maximum Rating - Peak Anode Current
1.5A
Absolute Maximum Rating - Anode Input Power
1.8kW
Absolute Maximum Rating - Load VSWR
4
Absolute Maximum Rating - Anode Temperature
300°C
Absolute Maximum Rating - Antenna Seal Temperature
320°C
Absolute Maximum Rating - Case Temperature
120°C
Absolute Maximum Rating - Storage Temperature (Min)
-30°C
Absolute Maximum Rating - Storage Temperature (Max)
60°C
Typical Operation - Power Supply
Single phase full wave rectified without filter
Typical Operation - Frequency
2460MHz
Typical Operation - Filament Voltage
3.15V
Typical Operation - Peak Anode Voltage
4.35kV
Typical Operation - Average Anode Current
330mAdc
Typical Operation - Output Power
1030W
Typical Operation - Cooling Air Flow
800ℓ/min
Typical Operation - Pressure Drop (Approx.)
70Pa
Filament Transformer Design Center
3.15 ±0.1V
Maximum Anode Temperature (Normal Condition)
250°C
Standard Ambient Temperature (during measurement)
25°C
Compliance
Regulatory
Complies with tighter regulations on spurious radiation and line conducted noise
Datasheet
Toshiba 2M248 Datasheet
Download the complete datasheet for Toshiba 2M248 to view detailed technical specifications.
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