5821

Water-cooled mercury-pool ignitron designed for frequency-changer resistance-welding control, providing high-current controlled conduction in specialized industrial welding power systems.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: 0 V / 0 mA

Description

Water-cooled mercury-pool ignitron for frequency-changer resistance-welding control.

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: 0 V
Nominal heater current: 0 mA
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

No fixed ratings are recorded for this section.

Mercury-pool ignitron switching system for resistance-welding frequency changer.

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

1947 Westinghouse

Published operating points and test conditions from this source.

SECTION 1

IgnitronPowerSwitch

Application

Application
FrequencyChanger_ResistanceWeldingControl text

Characteristic

IgnitorCurrentRequired
10 A

Other

MaximumAverageAnodeCurrent
315 A