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F7975

High-voltage thermionic power diode designed for specialized rectifier service and other applications requiring substantial inverse-voltage capability.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

The F7975 is a high-voltage power diode designed for rectifier service and related special applications.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

1 physical section, each with unique specifications.

Section 1

Diode

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 55000 V

Published maximum ratings and characteristics audited; remaining values retained densely in parameter table.

Source-dependent data

Operating conditions by source

Each block preserves the test conditions and published values from one reference. Values from different sources are intentionally kept separate.

Data set 01

1962 ITT

Published operating points and test conditions from this source.

SECTION 1

Diode

Other

Filament Voltage
15 V
Filament Voltage 15 volts
Filament Current
36 A
Filament Current 36 amperes
Max. Peak Inverse Voltage [1]
55 V
Max. Peak Inverse Voltage 55 55 & kilovolts
Max. Peak Inverse Voltage [2]
55 V
Max. Peak Inverse Voltage 55 55 & kilovolts
Max. Peak Plate Current [1]
100 A
Max. Peak Plate Current 100 100 21 amperes
Max. Peak Plate Current [2]
100 A
Max. Peak Plate Current 100 100 21 amperes
Max. Peak Plate Current [3]
21 A
Max. Peak Plate Current 100 100 21 amperes
Max. Average Plate Current
5 A
Max. Average Plate Current - - 5 amperes
Plate Current
165000 A
Plate Current 165,000
Inter-Electrode Capacitance
11.5 pF
Inter-Electrode Capacitance 11.5 ppf
Max. Glass & Seal Temperature
180
Max. Glass & Seal Temperature 180 °C
Plate Dissipation [1]
3.5 W
Plate Dissipation 3.5 2.8 2.4 kilowatts
Plate Dissipation [2]
2.8 W
Plate Dissipation 3.5 2.8 2.4 kilowatts
Plate Dissipation [3]
2.4 W
Plate Dissipation 3.5 2.8 2.4 kilowatts
Max. Incoming Air Temperature
45
Max. Incoming Air Temperature 45 °¢
Published value [1]
10 W
10 F-7975 POWER DIODE
Published value [2]
7975 W
10 F-7975 POWER DIODE
Published value
10
10 PLATE VOLTS
F
7975 W
F-7975 POWER DIODE