Request InfoOpto Diode CorporationOpto Diode’s BXT-2S-68TE thermoelectrically cooled, two-stage infrared (IR) detector offers superior sensitivity for extremely low-level signal detection and exceptional stability in environments with fluctuating temperatures. With a 36-mm2 active area, the highperformance, lead selenide IR detector features peak sensitivity from 4.3 to 4.5 μm in a TO-8 package with flat sapphire window. 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