AJ5551A

Water-cooled thermostatically controlled ignitron for high-power industrial switching. Thermal regulation supports reliable heavy-current mercury-discharge operation.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

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

Description

Water-cooled ignitron with thermostat for high-power industrial switching.

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

IgnitronPowerSwitch

X-ray radiationInterelectrode capacitances

Max cathode current: 56 A

Ignitron; represented as Thyratron in canonical TubeType and Other in canonical SectionType.

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

1953 AEG

Published operating points and test conditions from this source.

SECTION 1

IgnitronPowerSwitch

Construction

Cooling method
Water
Thermostat
Present

Other

Maximum switching capacity
600 kVA
AntiParallelPair
Average anode current
56 A
At200kVA
Surge current maximum
6500 A
0.15sAt250V
Anode voltage maximum
600 V

Characteristic

Arc drop
13 V