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C16J

Directly heated xenon negative-control thyratron with very high peak and average current capability for grid-controlled rectifier and pulse-power applications.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: 3
Nominal heater: 2.5 V / 31 A

Description

RCA C16J/5665 is a directly heated xenon negative-control thyratron with very high peak and average anode-current ratings for grid-controlled rectifier and pulse-power applications.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: 3
Nominal heater voltage: 2.5 V
Nominal heater current: 31 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 plate voltage: 1000 V
Max cathode current: 18 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

Thyratron

Other

Maximum peak inverse voltage
1250 V
Published datasheet value
Maximum peak forward voltage
1000 V
Published datasheet value
Maximum DC output current
18 A
Published datasheet value
Maximum instantaneous output current
160 A
Published datasheet value
Maximum AC short-circuit current
1000 A
Published datasheet value

Characteristics

Heating time
60 s
Published datasheet value
Typical arc drop
12 V
At stated peak current
Ionization time
10 us
Approximate
Deionization time
1000 us
Approximate
Anode-grid capacitance
8 pF
Published capacitance

Data set 02

1971 RCA HB3 Binder 2 of 7

Published operating points and test conditions from this source.

SECTION 1

Thyratron

Other

Filament voltage
2.5 V
Nominal
Filament current
31 A
Nominal
Maximum deionization time
1000 us
Maximum critical grid current
10 uA
Maximum anode voltage drop at end of life
14 V
Maximum commutation factor
0.66 VA/us^2
Peak forward anode voltage
1000 V
Peak inverse anode voltage
1250 V
Peak negative grid voltage before conduction
100 V
Peak anode/cathode current
160 A
Average anode/cathode current
16 A
Fault current
1000 A
Short-duration fault rating
Ambient or condensed-mercury operating temperature range
-55 to +75 C

Characteristic

Minimum heating time prior to tube conduction
60 s
Anode voltage drop at beginning of life
11 V
Grid control ratio
270
Approximate; stated grid-resistor and DC conditions

Capacitance

Grid-to-anode capacitance
8 pF
Approximate
Grid-to-cathode capacitance
29 pF
Approximate