home-icon/Products / Infrared detectors / InAs/InAsSb Superlattice / Type II Superlattice Photoconductive Detector PCAS-2TE-9-1×1AR-TO8-wZnSeAR-70

Type II Superlattice Photoconductive DetectorPCAS-2TE-9-1×1AR-TO8-wZnSeAR-70

2.0 – 11.0 µm, two-stage thermoelectrically cooled

PCAS-2TE-9-1×1AR-TO8-wZnSeAR-70 is a Type II superlattice two-stage thermoelectrically cooled IR photoconductor, with excellent parameters. Photoconductive detector should operate in optimum bias voltage and current readout mode. Performance at low frequencies is reduced due to 1/f noise. Anti-reflection coated applied to active element (1×1AR) and 3° wedged zinc selenide window (wZnSeAR) prevents unwanted interference effects. For detection of CW radiation, using of optical chopper system is recommended. This detector does not contain mercury or cadmium and is compliant with the RoHS Directive.

Features

High performance in spectral range from 2.0 to 11.0 µm

Excellent linearity

Environmentally friendly

Specification (Ta = 20°C)

Parameter
PCAS-2TE-9-1×1AR-TO8-wZnSeAR-70
Active element material
epitaxial superlattice heterostructure
Cut-on wavelength λcut-on (10%) µm
≤2.0
Peak wavelength λpeak, µm
4.0±0.5
Cut-off wavelength λcut-off (10%) µm
11.0±0.5
Detectivity D*(λpeak, 300 kHz), cm⋅Hz1/2/W
≥2.6×108
Current responsivity Ripeak), A/W
≥0.04
Time constant τ, ns
≤17
Resistance R, Ω
≥70
Bias voltage Vb, V
typ. 0.6
1/f noise corner frequency fc, Hz
typ. 300k
Active element temperature Tdet, K
~230
Active area A, mm×mm
1×1AR
Package
TO8
Acceptance angle, Φ
~70°
Window
wZnSeAR

Spectral response (Ta = 20°C)

PCAS-2TE-9-1x1AR

Mechanical layout, mm

2TE-TO8-non-imm-2

2TE-TO8 package

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