Robust operation in direct sunlight

New Yorker Electronics has announced Vishay’s release of two new fixed-gain infrared (IR) sensor modules designed to lower costs and increase stability for outdoor sensorapplications. Offering typical irradiance of 1.3mW/m2 in compact Minimold packages, the surface-mount TSSP93038DF1PZA and leaded TSSP93038SS1ZA provide robust operation in direct sunlight, while still providing enough sensitivity for light barrier applications.

Unlike high sensitivity fixed-gain IR sensor modules that require attenuators like dark panels, apertures and sunshades to protect them against sunlight—adding to overall solution costs—the controlled sensitivity of the devices let them operate in full sunlight without unwanted pulses. In addition, for short range presence and proximity applications, the sensors’ reduced sensitivity eliminates the need for extremely low emitter forward currents, which can lead to unstable intensity outputs.

The devices suit sensing distance to objects for toys, drones, robots and vicinity switches; presence detection for traffic control lights and parking lot, gateway access and water level sensors; and light barriers for sports racing and lawnmower robots.