Alternatives & variations Download PDF datasheet

M8079

Rugged special-quality miniature double diode with separate cathodes and internal screening, designed for equipment subject to severe mechanical shock and vibration.

Directly heatedCold cathodeCommon cathodeDissimilar

Sections: 2
Base: -
Socket code: -
Base pins: -
Nominal heater: 6.3 V / 300 mA

Description

The Mullard M8079 is a rugged special-quality miniature double diode with separate cathodes and internal screening.

General specifications

Tube and section characteristics

Properties common to every published source and operating point.

Heater and base

Base: -
Socket code: -
Base pins: -
Nominal heater voltage: 6.3 V
Nominal heater current: 300 mA
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

2 physical sections, each with unique specifications.

Section 1

Diode

X-ray radiationInterelectrode capacitances

Rectifier peak inverse voltage: 460 V
Rectifier nominal output current: 10 mA
Rectifier peak forward current: 60 mA

Representative of two identical special-quality diode sections.

Section 2

Diode

X-ray radiationInterelectrode capacitances

Max cathode current: 10 mA

Physical 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

1963 Mullard

Published operating points and test conditions from this source.

SECTION 1

Diode

Characteristics

Heater Voltage
6.3 V
Heater Current
300 mA
Anode-Cathode-Heater Capacitance
3.2 pF
EachSection
Cathode-Anode-Heater Capacitance
3.9 pF
EachSection
Inter-Anode Capacitance Maximum
0.026 pF

Other

Peak Inverse Voltage
460 V
EachSection
Maximum DC Anode Current
10 mA
EachSection
Maximum Peak Anode Current
60 mA
EachSection
Maximum RMS Input Voltage
165 V
EachSection
Minimum Limiting Resistance per Anode
600 ohm
EachSection
Maximum Continuous Acceleration
25 g
Maximum Shock
500 g
ShortDuration