Alternatives & variations Download PDF datasheet

6352

Subminiature temperature-limited double diode with tungsten filament, whose plate current depends on filament voltage for specialized measurement or control applications.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: 8EY
Socket code: B8D
Base pins: 8
Nominal heater: 3 V / 360 mA

Description

Subminiature double diode with a tungsten filament operated under temperature-limited emission; plate current depends on filament voltage.

Socket description

Subminiature 8-lead

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: 8EY
Socket code: B8D
Base pins: 8
Nominal heater voltage: 3 V
Nominal heater current: 360 mA
Parallel heater voltage: -
Parallel heater current: -
Series capable: No

8EY - Terminal pinout

Electrical assignments shared by every tube using this base designation.

No verified pinout is recorded for this base designation.

Section ratings

2 physical sections, each with unique specifications.

Section 1

Diode

X-ray radiationInterelectrode capacitances

Max plate voltage: 275 V
Rectifier nominal output current: 1.1 mA

Promoted from clearly identified printed ratings/characteristics; additional published operating points and capacitances retained in TUBE_SECTION_PARAMETER.

Section 2

Diode

X-ray radiationInterelectrode capacitances

Max plate voltage: 250 V
Max cathode current: 1.1 mA

Physical second diode section added during approved section-structure reconciliation.

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

Diode

Other

Maximum plate current
1.1 mA
PlatesConnectedTogether

Characteristic

Characteristic plate voltage
250 V
PlatesConnectedTogether
Plate load resistor
1 MOhm
PlatesConnectedTogether

Data set 02

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Diode

Other

Filament voltage nominal
3 V
AC
Filament current nominal
360 mA
AC
Maximum filament voltage
4 V
AC
Maximum plate voltage
250 V
DC
Maximum plate current
1.1 mA
EachSection
Plate voltage
250 V
ControlService;Through1Megohm
Plate current
50 µA
ControlService