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Specialized - Thyratron ·Thyratron

3C23

Gas-filled grid-controlled thyratron for switching, controlled-rectifier, relay, motor-control, oscillator, or pulse service as documented by the manufacturer.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
UX4
Socket code
IO
Base pins
4
Nominal heater
2.5 V / 7 A

Description

The 3C23 is a three-electrode argon and mercury-vapor thyratron with a negative-control characteristic for controlled rectifier, motor-control, and relay service.

Socket description

International Octal

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
UX4
Socket code
IO
Base pins
4
Nominal heater voltage
2.5 V
Nominal heater current
7 A
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

UX4 - 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
1250 V
Max cathode current
1.8 A
Rectifier forward voltage drop
10 V
Rectifier warm-up time
15 s

Published ratings/characteristics promoted where semantically applicable; supplemental values retained in parameter table.

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

1961 Tung Sol

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Filament Voltage

    2.5 V

  • Filament Current

    7 A

Construction

  • Filling

    Argon and mercury vapor

Data set 02

1963 Amperex Condensed

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristic

  • Filament heating time

    15 s

    Thyratron

  • Tube voltage drop

    15 V

    Thyratron

  • Ionization time

    3 µs

    Thyratron

Other

  • Peak forward voltage maximum

    1250 V

    Thyratron

  • Peak inverse voltage maximum

    1250 V

    Thyratron

  • Peak anode current maximum

    6 A

    Thyratron

  • Average anode current maximum

    1.8 A

    Thyratron

  • Maximum grid voltage

    -500 V

    Thyratron

Data set 03

1963 Ferranti

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristic

  • HeaterOrFilamentVoltage

    2.5 V

  • HeaterOrFilamentCurrent

    7 A

  • FilamentHeatingTimeMinimum

    15 s

  • PeakVoltageDrop

    16 V

  • Control Grid Voltage

    0 V

    AnodeVoltage=25V

  • Control Grid Voltage

    -4 V

    AnodeVoltage=500V

  • Control Grid Voltage

    -6.5 V

    AnodeVoltage=1250V

  • IonisationTimeApproximate

    10 us

  • DeionisationTimeApproximate

    1000 us

  • GridToAnodeCapacitance

    1.8 pF

  • Grid To Filament Capacitance

    58 pF

Other

  • PeakAnodeVoltageForwardMaximum

    1250 V

  • PeakAnodeVoltageInverseMaximum

    1250 V

  • PeakAnodeCurrentMaximum

    3 A

    PowerFrequency<25Hz

  • PeakAnodeCurrentMaximum

    6 A

    PowerFrequency>=25Hz

  • MeanAnodeCurrentMaximum

    1.5 A

    PowerFrequency<210Hz

  • MeanAnodeCurrentMaximum

    1 A

    PowerFrequency=210-400Hz

  • PeakGridCurrentMaximum

    50 mA

  • MeanGridCurrentMaximum

    10 mA

    AveragedOver5Seconds

  • NegativeControlGridVoltageMaximum

    500 V

    BeforeConduction

  • NegativeControlGridVoltageMaximum

    10 V

    DuringConduction

  • PowerSupplyFrequencyMaximum

    400 Hz

  • Condensed Mercury Temperature Minimum

    -40 C

  • Condensed Mercury Temperature Maximum

    80 C

  • GridCircuitResistanceMinimum

    1000 ohm

Data set 04

1966 Tung Sol Electronic Tubes 3 of 4

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

  • Peak forward anode voltage

    1250 V

    ThyratronService

  • Peak reverse anode voltage

    1250 V

    ThyratronService

  • Peak anode current

    6 A

    ThyratronService

  • Average anode current

    1.5 A

    ThyratronService

  • Maximum plate voltage

    1250 V

    PromotedValue

  • Maximum cathode current

    1.5 A

    PromotedValue

  • Forward

    1250 V

    PublishedTable

  • Reverse

    1250 V

    PublishedTable

  • Peak Or Dc Before Tube Conduction

    500 V

    PublishedTable

  • Average During Tube Conduction -Note 1

    -10 V

    PublishedTable

  • Filament Voltage 2.37

    2.63 V

    PublishedTable

Characteristics

  • Cathode heating time minimum

    15 s

    ThyratronService

  • Anode voltage drop initial

    10 V

    ThyratronService

  • Anode voltage drop end of life

    20 V

    ThyratronService

  • Rectifier forward voltage drop

    10 V

    PromotedValue

  • Rectifier warmup time

    15 s

    PromotedValue

  • Filament Current @ Ef= 2.5 Molts

    7 A

    PublishedTable

  • Cathode Heating Time— Minimum

    15 s

    PublishedTable

  • Anode To Control Grid Capacitance

    1.8 ΜΜF

    PublishedTable

  • Anode Volts = 120, Anode Current =

    1.5 A

    PublishedTable

  • Grid Volts =- 20, Grid Resistor = 10,000 Ohms

    360 ΜΜF

    PublishedTable

  • Grid Volts =- 500 Grid Resistor = 100,000 Ohms

    60 ΜΜF

    PublishedTable

  • Initial

    10 V

    PublishedTable

  • End Of Life

    20 V

    PublishedTable

Capacitance

  • Anode-to-control-grid capacitance

    1.8 pF

Data set 05

1971 RCA HB3 Binder 2 of 7

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Characteristics

  • Voltage — published value 1

    2 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Voltage — published value 2

    5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Voltage — published value 3

    5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Current at 2.5 volts, — published value 1

    2.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Current at 2.5 volts, — published value 2

    7 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • For conditions: do anode volts = 100,

    100 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • peak grid volts = +30, and peak

    30 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • anode amperes = 6 — published value 1

    6 A

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • anode amperes = 6 — published value 2

    3 A

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • For conditions: do anode

    120 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • do grid-supply volts = -20, grid re

    -20 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • anode amperes = 1.5 — published value 1

    1.5 A

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • anode amperes = 1.5 — published value 2

    360 A

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • do grid-supply volts= -500, grid re

    -500 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • anode amperes = 1.5 — published value 1

    1.5 A

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • anode amperes = 1.5 — published value 2

    60 A

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • anode amperes = 1.5 — published value 3

    0 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Anode Voltage Drop (Approx )

    15 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Ef=2.5 VOLTS AC 3570; CIRCUIT RE — published value 1

    2.5 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Ef=2.5 VOLTS AC 3570; CIRCUIT RE — published value 2

    3570 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • TEMPERATURE=-40"C TO +BO'C

    -40

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Heater or filament voltage nominal

    2.5 V

    Nominal value from supplied datasheet.

  • Heater or filament current nominal

    7 A

    Nominal or average value from supplied datasheet.

Other

  • Forward — published value 1

    200 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Forward — published value 2

    1250 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Inverse — published value 1

    200 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Inverse — published value 2

    1250 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • tube conduction — published value 1

    -500 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • tube conduction — published value 2

    -500 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • tube conduction — published value 1

    -10 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • tube conduction — published value 2

    -10 V

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Peak — published value 1

    6 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Peak — published value 2

    6 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Average' — published value 1

    1.5 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Average' — published value 2

    1.5 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • 0.1 second max — published value 1

    0.1 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • 0.1 second max — published value 2

    12 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • 0.1 second max — published value 3

    120 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.

  • Averaye~

    0.01 mA

    Published datasheet value; multiple values on one row represent separate limits, service ratings, or operating conditions.