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6308

Cold-cathode gas-discharge tube optimized as a stable voltage-reference source for regulated supplies, precision electronics, and measurement circuits.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 1
Base: 8EX
Socket code: B8D
Base pins: 8
Nominal heater: -

Description

Subminiature gas-filled cold-cathode glow-discharge voltage-reference tube for electronically regulated power supplies and severe environments.

Socket description

Subminiature 8-lead

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8EX
Socket code: B8D
Base pins: 8
Nominal heater voltage: -
Nominal heater current: -
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

8EX - 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

Voltage Regulator

X-ray radiationInterelectrode capacitances

Regulator voltage: 87 V
Regulator minimum current: 1.5 mA
Regulator maximum current: 3.5 mA
Regulator starting voltage: 115 V
Regulator maintaining voltage: 87 V

Representative electrical section; promoted values mapped from published ratings/characteristics where applicable.

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

1950 Sylvania

Published operating points and test conditions from this source.

SECTION 1

Voltage Regulator

Other

Ionization voltage in total darkness minimum
140 V
Published datasheet value
Maximum shunting capacitance
0.002 pF
Published datasheet value

Characteristic

Maximum regulation
3 V
Published datasheet value