Sensors

IR sensor modules come in five compact packages

23rd April 2020
Mick Elliott

Longtime Vishay Intertechnology franchise distributor New Yorker Electronics has introduced a new series of Vishay infrared (IR) sensor modules designed for light curtain and perimeter guard applications.

Available in five compact packages, they feature a fast 300μs reaction time.

This Vishay Semiconductors TSSP9 series delivers long range presence and proximity sensing up to 2m, and a range up to 30m for light curtain and perimeter guard applications. 

Compared to previous-generation devices, these fixed-gain sensors provide higher interference strength without spurious signals and an output pulse width closer to the optical burst length.

In addition, they offer an almost constant detection threshold over their -25°C to +85°C temperature range and can detect a valid IR signal up to a higher DC illuminance level. 

The TSSP9xxx AGC 0 is a good choice for fast proximity applications (~15ms) by using a burst pattern with variable intensity.

The devices are ideal for sensing the distance to objects for drones, robots, toys and vicinity switches.

They may also be used as reflective sensors for hand dryers, towel or soap dispensers, water faucets, toilets, vending machine fall detection, and security and pet gates.

To simplify designs in these applications, TSSP9xxx series devices feature a PIN photodiode and sensor IC in compact Minimold, Mold, Heimdall, Panhead and Minicast packages. 

The modules operate at a supply voltage range from 2.0V to 3.6V, feature a low supply current of 0.8mA, and offer carrier frequencies of 38kHz and 56kHz.

They are designed to receive IR pulses from an emitter with a peak wavelength of 940nm, and are insensitive to supply voltage and ripple noise and provide shielding against EMI, while an IR filter suppresses visible light.

The entire series is RoHS-compliant, halogen-free and Vishay Green.

New Yorker Electronics supplies the full line of Vishay Semiconductors and Passive Components.

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