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Diode (NOT rectifier) ·Rectifier

5642

Subminiature directly heated high-voltage half-wave vacuum rectifier with approximately 10 kV inverse capability, suitable for high-frequency and pulsed rectifier service.

Directly heatedCold cathodeCommon cathodeDissimilar
Sections
1
Base
Special2Lead
Socket code
SPECIAL2
Base pins
2
Nominal heater
1.25 V / 200 mA

Description

Mullard rectifier with published ratings and characteristics extracted from the supplied datasheet.

Socket description

Special 2-contact base

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base
Special2Lead
Socket code
SPECIAL2
Base pins
2
Nominal heater voltage
1.25 V
Nominal heater current
200 mA
Parallel heater voltage
-
Parallel heater current
-
Series capable
No

Special2Lead - 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

Rectifier

X-ray radiationInterelectrode capacitances
Rectifier peak inverse voltage
10000 V
Rectifier nominal output current
0.25 mA
Rectifier peak forward current
5 mA
Rectifier forward voltage drop
70 V

Electrical section extracted from supplied datasheet.

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

195X General Electric Essential Characteristics

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Maximum Peak Inverse Voltage

    10000 V

    HalfWave

  • Maximum DC Output Current

    0.25 mA

    HalfWave

  • Maximum Peak Current

    5 mA

    HalfWave

Characteristic

  • Forward Voltage Drop

    70 V

    HalfWave

Data set 02

1960 RCA Industrial and Communications Types

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Application

  • Application

    High-voltage half-wave rectifier

Other

  • Maximum supply frequency

    400 kHz

Data set 03

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Characteristic

  • HeaterOrFilamentVoltage

    1.25 V

  • HeaterOrFilamentCurrent

    200 mA

Other

  • RMSInputVoltage

    3.6 kV

    SineWaveInput

  • DC Output Current

    250 uA

    SineWaveInput

  • LimitingResistance

    470 kohm

    SineWaveInput

  • Reservoir Capacitance

    0.02 uF

    SineWaveInput

  • DC Output Voltage

    4.5 kV

    SineWaveInput

Data set 04

1971 RCA HB3 Binder 3 of 7

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Other

  • Rectifier maximum peak inverse voltage

    - to 10000 V

  • Rectifier nominal output current

    - to 0.25 mA

  • Rectifier peak forward current

    - to 5 mA

  • Peak-pulse plate voltage

    8000 V

  • DC output voltage, two tubes

    12000 V

  • DC output current

    0.15 mA

  • Supply frequency minimum

    5 kHz

Capacitance

  • Plate to filament

    0.6 pF

Data set 05

1999 Philips 0-D

Published operating points and test conditions from this source.

SECTION 1

Rectifier

Capacitance

  • Anode-to-filament capacitance

    0.6 pF

Other

  • Peak inverse voltage

    10 kV

  • Maximum anode current

    250 uA

  • Peak anode current

    5 mA

    PulseInput;PulseDuration<=10us;Duty<=15%

  • Peak anode current

    1.5 mA

    SineWaveInput;Frequency>=5kHz