Hitachi H3881 is fixed frequency continuous wave magnetron intended for use in industrial microwave heating applications.
The useful RF power output at 2460 MHz band is approx. 6.0 kW into a matched load.
| No. | Item | Symbol | Min. | Max. | Unit |
|---|---|---|---|---|---|
| 1 | Filament surge current | - | - | 200 | Aac |
| 2 | Filament voltage (pre-heating) | Ef | 4.8 | 5.2 | Vac |
| 3 | Filament voltage (operation) | Ef | 1.3 | 1.7 | Vac |
| 4 | Cathode pre-heating time | tk | 30 | - | s |
| 5 | Peak anode voltage | Eb | - | 7.8 | kVdc |
| 6 | Peak anode current | ibm | - | 2.1 | Ap |
| 7 | Average anode current | Ib | - | 1200 | mAdc |
| 8 | Average input power | Pi | - | 8.8 | kW |
| 9 | Load VSWR | σL | - | 1.5 | - |
| 10 | Anode temperature | Tp | - | 100 | °C |
| No. | Item | Test conditions | Symbol | Typ. | Min. | Max. | Unit |
|---|---|---|---|---|---|---|---|
| 1 | Filament current (pre-heating) | tk = 120 s (Min.) | If | 29.0 | 27.0 | 31.0 | Aac |
| 2 | Peak anode voltage | - | Eb | 7.50 | 7.30 | 7.70 | kVdc |
| 3 | Average power output | Ib = 1100 mA | Po | 6000 | 5800 | - | W |
| 4 | Frequency (matched load) | Ib = 1100 mA | fo | 2460 | 2445 | 2475 | MHz |
| 5 | Breakdown voltage | Ef = 0, ebm = 0 | Et | - | 10.0 | - | kVdc |
| No. | Item | Test conditions |
|---|---|---|
| 1 | Power supply | DC power supply with less than 2% of ripple rate |
| 2 | Filament voltage | Ef = 5.0 V (pre-heating), Ef = 1.5 V [operation (Ib = 1100 mAdc)] |
| 3 | Average anode current | Ib = 1100 mAdc |
| 4 | Load VSWR | σL = 1.1 or less |
| 5 | Cooling water flow | Q = 4.0 L/min or greater |
Please choose the type of outline from inline or not inline (A, B).
Weight : approx. 2.7 kg
H3881 (2M304) Performance Chart
H3881 (2M304) Filament Voltage Reduction Chart
