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Specialized - Thyratron ·Thyratron

8270

Gas-filled grid-controlled thyratron for industrial switching, controlled rectification, relay, motor-control, or pulse service.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
-
Base pins
4
Nominal heater
5 V / 13 A

Description

Grid-controlled mercury-vapor thyratron for high-voltage industrial switching service.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
-
Base pins
4
Nominal heater voltage
5 V
Nominal heater current
13 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 cathode current
2.5 A
Rectifier peak inverse voltage
21000 V
Rectifier nominal output current
2.5 A
Rectifier peak forward current
10 A
Rectifier forward voltage drop
12 V
Rectifier warm-up time
90 s

Special-purpose section represented as Other under canonical SectionType vocabulary.

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 Amperex

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Capacitance

  • Anode To Grid Capacitance

    4 pF

    Published direct interelectrode capacitance

  • Grid To Cathode Capacitance

    13 pF

    Published direct interelectrode capacitance

Other

  • Peak Anode Voltage Inverse

    21 kV

    Published source value

  • Average Anode Current

    2.5 A

    Published source value

Characteristic

  • Tube Voltage Drop

    12 V

    Published source value

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristic

  • Filament heating time

    90 s

    MercuryVaporThyratron

  • Tube voltage drop

    12 V

    MercuryVaporThyratron

  • Ionization time

    10 µs

    MercuryVaporThyratron

Other

  • Peak forward voltage maximum

    21000 V

    MercuryVaporThyratron

  • Peak inverse voltage maximum

    21000 V

    MercuryVaporThyratron

  • Peak anode current maximum

    10 A

    MercuryVaporThyratron

  • Average anode current maximum

    2.5 A

    MercuryVaporThyratron

  • Maximum grid voltage

    -300 V

    MercuryVaporThyratron

  • Recommended mercury temperature range

    +25 to +45 °C

    MercuryVaporThyratron