onsemi Optical Sensors - Photo Detectors - Logic Output QSE256

The QSE256-ND is a photosensor from the QSE25x family, featuring a Schmitt trigger output that enhances noise immunity and pulse shaping. It is designed with a bipolar silicon integrated circuit and comes in a sidelooker package type. The sensor has a medium wide reception angle of 50¬8 and is constructed from black epoxy material. It includes a daylight filter and is characterized by high sensitivity, making it suitable for various applications. This device operates over a supply voltage range of 4.0 to 16.0 volts and can drive up to ten TTL loads. The operating temperature range is from -40¬8C to +85¬8C, with a storage temperature capability of -40¬8C to +100¬8C. The output current can reach up to 50 mA, and the power dissipation is rated at 100 mW. The QSE256-ND is a Pb-free device, ensuring compliance with environmental standards. Engineers considering this product should note its direct TTL/LSTTL interface and the hysteresis ratio, which ranges from 1.10 to 2.00, providing reliable performance in various lighting conditions.