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The CV2341 is a co-axial microwave noise diode for system testing up to about 1 GHz. The anode voltage can be up to 400 Volts but not under saturated conditions. When operated as a saturated diode the maximum anode voltage must be limited to 200 Volts. The saturated current is varied by altering the filament power. The life of the diode is greatly influenced by the anode current and can be as little as 30 Hours at maximum current. At 10% of maximum current the life reaches 1,000 Hours. In many applications they were coupled to an hour meter because of the limited operational life.
With forced air cooling the anode can dissipate 40 Watts. Under normal convection cooling the dissipation limit is 10 Watts.
The filament runs the length of the diode with connections at the ends. The anode connection is to the barrel of the device.
Another view of the cooling fins and glass filament insulation.
The thin metal tube envelope is 12 mm in diameter, and 84 mm overall. The cooling fins are 50 mm in diameter.
Reference: Datasheet. Type CV2341 was first introduced in 1961.


Absolute Maximum Operating Conditions
Thanks to Frank Philipse for supplying the above PDF datasheet.
Updated October 12, 2013.
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