5552

Water-cooled mercury-pool ignitron power switch for industrial welding and rectification.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

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

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 0

IgnitronPowerSwitch

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Mercury-pool ignitron power switch; peak voltage drop about 12 V; maximum average anode current 140 A in AC welder control service; minimum water flow 1.5 US gal/min; specialized Ignitron subtype retained for future reclassification.

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

9999 Mixed H 1000

Published operating points and test conditions from this source.

SECTION 0

IgnitronPowerSwitch

Other

Average plate current
140 A
Maximum average anode current in specified AC welder-control service; not general rectifier average rating