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8553

Hydrogen thyratron for high-power pulse switching. Its heavy heater supports rapid controlled discharge at substantial pulse current.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 7.8 A

Description

Ceramic hydrogen thyratron and plug-in replacement for 5C22; shared 8553/KU72Z designation.

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: 6.3 V
Nominal heater current: 7.8 A
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

Thyratron

X-ray radiationInterelectrode capacitances

Max plate voltage: 16000 V
Rectifier nominal output current: 500 mA
Rectifier peak forward current: 500 A
Rectifier warm-up time: 180 s

Applicable promoted fields mapped semantically from the printed ratings; device-specific electrical limits and operating conditions are preserved densely in TUBE_SECTION_PARAMETER.

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

Thyratron

Characteristic

Heater Voltage
5.8 to 6.8 V
Heater Current
6 A to 10 A

Other

Minimum Heating Time
3 min
Peak Forward Anode Voltage
16000 V
Peak Anode Current
500 A
Average Anode Current
500 mA