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CV4504 / VX8123 'reliable' diode

Size This valve measures 28x5mm overall plus leads.


Heater voltage 6.3V
Heater current 150mA
Max heater-cathode voltage, cathode +ve 300V
Max heater-cathode voltage, cathode -ve 100V
Max PIV 460V
Max RMS input voltage 165V
Max mean anode current 10mA
Max peak anode current 60mA
Max surge anode current 200mA
Min source impedance 300 ohms
Max reservoir capacitor 8µF
Max vibration (100 hours duration max) 20g
Max vibration (10 mins duration max) 500g
Max bulb temperature 165C
Min operating pressure 55mm Hg
Max ambient storage temperature range -60 to +85C


Lead Function
1 Heater
2 Anode
3 Cathode
4 Heater
5 Anode

This file was last modified 23:10:30, Wednesday February 23, 2022