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An RoHS-compliant InAsSb detector offering greater stability than comparable PbSe detectors
- Hamamatsu Photonics Europe
Large 1 × 1 mm active area and high sensitivity for gas analysis and remote temperature measurement.
Hamamatsu Photonics introduces the P17442-011MS InAsSb photovoltaic detector for mid-infrared measurement. Combining high sensitivity, high linearity and greater stability, it provides a RoHS-compliant alternative to traditional PbSe detectors for mid-infrared detection.[1] Its large 1 × 1 mm active area collects more light to increase the output signal, while a typical rise time of 15 ns supports fast mid-infrared measurement without cooling.
P17442-011MS InAsSb photovoltaic detector
Detector benefits
The key specifications and their supported benefits include:
- Photosensitive area: The 1 × 1 mm active area, larger than that of the previous P16112 and P16612 series.
- Spectral performance: A typical peak sensitivity wavelength of 4.1 µm and typical cutoff wavelength of 5.3 µm provide mid-infrared detection up to the 5 µm band.
- Sensitivity: Typical photosensitivity of 65 mA/W and detectivity of 1.0 × 10⁹ cm·Hz¹/²/W support measurements needing high sensitivity detection.
- Response: A typical rise time of 15 ns supports rapid measurements and fast signal modulation.
- Optical design: A sapphire window and 100° field of view define the optical interface, while the back-illuminated structure improves temperature sensitivity.
- Operation and package: The non-cooled detector uses a high-reliability TO-5 metal package and has an operating temperature range of −40 to +85 °C.
- Environmentally friendly: RoHS compliance, with lead-, mercury- and cadmium-free construction, supports integration into products requiring restricted-substance compliance.
This new detector represents Hamamatsu’s commitment to continuously improve its product offerings to meet evolving needs of optical system designers and integrators.
Target Applications
- Gas measurement
- Remote temperature measurement
For full technical details, visit the P17442-011MS product details and datasheet.
References
1) Hamamatsu Photonics, “InAsSb MWIR detectors,” 2026. [Online]. Available: https://www.hamamatsu.com/eu/en/news/featured-products_and_technologies/2026/inassb-mwir-detectors.html. [Accessed: Oct. 22, 2026].
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