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Specialized - Thyratron ·Triode

NL5684

Quick-heating rugged xenon thyratron designed for timing, control, and other industrial applications, with wide-temperature operating capability.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized
Sections
1
Base
-
Socket code
UX4
Base pins
-
Nominal heater
2.5 V / 9 A

Description

NATIONAL POWER TUBE NTL-5684/C3J/A is a quick-heating, ruggedly constructed thyratron designed for timing, control and other industrial applications. It is xenon filled for quick starting characteristics and operation within wide temperature limits. NL-5684/C3J/A THYRATRON TUBE TECHNICAL INFORMATION do Amperes output (maximum) _ 2.5 Instantaneous Amperes output (maximum) 30 Maximum time of averaging anode current (seconds) 4.5 Maximum peak inverse volts 1250 Maximum peak forward volts 1000 Max.

Socket description

Medium-shell UX 4-contact

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
-
Socket code
UX4
Base pins
-
Nominal heater voltage
2.5 V
Nominal heater current
9 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

Triode

X-ray radiationInterelectrode capacitances
Max plate voltage
1000 V
Max cathode current
2.5 A
Rectifier peak inverse voltage
1250 V
Rectifier nominal output current
2.5 A
Rectifier peak forward current
30 A

Thyratron section; published switching/rating data retained below.

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

1956 National Electronics Industrial Tubes

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • 2.5 Amperes do

    30 Amperes Peak A

    Source technical-information table; wording preserved from datasheet.

  • do Amperes output (maximum)

    _ | 2.5 A

    Source technical-information table; wording preserved from datasheet.

  • Instantaneous Amperes output (maximum)

    30 A

    Source technical-information table; wording preserved from datasheet.

  • Maximum time of averaging anode current (seconds)

    4.5 A

    Source technical-information table; wording preserved from datasheet.

  • Maximum peak inverse volts

    1250 V

    Source technical-information table; wording preserved from datasheet.

  • Maximum peak forward volts

    1000 V

    Source technical-information table; wording preserved from datasheet.

  • Max. Commutation Factor (V/usec x V/usec) at a max. initial inverse voltage of 350 volts

    0.66 V

    Source technical-information table; wording preserved from datasheet.

  • Filament volts

    2.5 V

    Source technical-information table; wording preserved from datasheet.

  • Filament amperes

    9 ± 2 A

    Source technical-information table; wording preserved from datasheet.

  • Heating time (seconds)

    30 s

    Source technical-information table; wording preserved from datasheet.

  • Maximum negative grid voltage before conduction (volts)

    100 V

    Source technical-information table; wording preserved from datasheet.

  • Maximum negative grid voltage during conduction (volts)

    10 V

    Source technical-information table; wording preserved from datasheet.

  • Maximum critical grid current (microamperes)

    10 A

    Source technical-information table; wording preserved from datasheet.

  • Maximum ac short circuit current (amperes)

    300 A

    Source technical-information table; wording preserved from datasheet.

  • Ambient temperature limits (°C)

    —55 to +75 C

    Source technical-information table; wording preserved from datasheet.

  • Net weight (ounces)

    3 oz

    Source technical-information table; wording preserved from datasheet.

  • Approx. shipping weight (lbs.)

    3 lb

    Source technical-information table; wording preserved from datasheet.

  • 12 -1O

    -8 -6 -4 -2 O 2 4 6

    Source technical-information table; wording preserved from datasheet.

Characteristic

  • Typical arc drop at 10 amperes peak (volts)

    10 V

    Source technical-information table; wording preserved from datasheet.

  • Ionization time (approx., microseconds)

    10 us

    Source technical-information table; wording preserved from datasheet.

  • Deionization time (approx., microseconds)

    1000 us

    Source technical-information table; wording preserved from datasheet.

  • Anode to grid capacitance (uuf)

    2 pF

    Source technical-information table; wording preserved from datasheet.

Data set 02

1957 National Electronics

Published operating points and test conditions from this source.

SECTION 1

Triode

Other

  • Maximum peak forward voltage

    1000 V

  • Maximum peak output current

    30 A

  • Maximum dc output current

    2.5 A

Characteristics

  • Ionization time

    10 us

  • Deionization time

    1000 us