7634

Uncooled lead-sulphide photoconductive infrared detector designed for chopped or pulsating radiation. It provides high room-temperature infrared sensitivity by converting incident radiation into changes in electrical conductivity.

Directly heatedCold cathodeCommon cathodeDissimilarSpecialized

Sections: 1
Base: -
Socket code: -
Base pins: -
Nominal heater: -

Description

Uncooled lead-sulphide photoconductive infrared cell for chopped or pulsating radiation, with high room-temperature infrared sensitivity.

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: -
Nominal heater current: -
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

PhotoconductiveDetector

X-ray radiationInterelectrode capacitances

No fixed ratings are recorded for this section.

Promoted values are taken directly from the supplied datasheet; additional ratings, characteristics and operating points are preserved in TUBE_SECTION_PARAMETER.

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

PhotoconductiveDetector

Other

Maximum applied voltage
250 V
Maximum current
500 uA
Maximum operating ambient temperature
60 degC
Maximum storage temperature
60 degC

Characteristics

Peak spectral response
2.5 um
Spectral response minimum
0.3 um
Spectral response maximum
3.5 um
Sensitivity
180 uV/uW
BlackBody=200C;Peak
Signal-to-noise ratio
150 ratio
BlackBody=200C
Noise equivalent power
5e-12 W
Bandwidth=1Hz
Sensitivity to tungsten light
3 mA/lm
Peak;2700K
Time constant
75 us
Noise equivalent power
5.5e-11 W
Wavelength=2um
Dark-resistance temperature coefficient
-2 %/degC