XL-ITR1203 Infrared Through-Beam Photoelectric Switch

Specifications

Product Overview

XL-ITR1203 is a XINGLIGHT infrared through-beam photoelectric switch in the LED category. Its construction combines an infrared emission diode with an NPN silicon phototransistor, packaged side by side on a converging optical axis inside a black thermoplastic shell. The package drawing uses millimeter dimensions with ±0.3 mm tolerance unless otherwise specified.

The emitter is characterized at 940 nm peak wavelength at IF=20 mA and Ta=25°C. Absolute maximum ratings include 75 mW emitter power dissipation, 50 mA continuous forward current, 200 mA peak forward current under ≤100 μs pulse width and 1% duty cycle, and 5 V reverse voltage. The detector side is rated for 75 mW power dissipation, 35 V collector-emitter voltage, 5 V emitter-collector voltage, and 20 mA collector current.

Electrical behavior includes forward voltage options from low-current to pulse-drive conditions, max 10 μA reverse current, max 100 nA dark current, max 0.4 V collector-emitter saturation voltage, and typical 15 μs rise and fall times. Assembly guidance includes MSL 2, Pb-free/RoHS compliance, a 240±5 °C wave-soldering peak for 6 seconds, one wave-soldering pass maximum, and soldering iron limits below 300 °C for less than 3 seconds per terminal.

Key Features

• Infrared emitter and NPN phototransistor construction
• Side-by-side devices on converging optical axis
• Black thermoplastic through-beam switch package
• 940 nm peak wavelength at 20 mA
• 50 mA continuous forward current rating
• 35 V collector-emitter detector voltage rating
• Typical 15 μs rise and fall times
• Collector current IC(ON) up to 0.95 mA
• Operating temperature range from -25 to +85 °C
• MSL 2, Pb-free and RoHS compliant

Typical Applications

• Through-beam object sensing
• Beam interruption detection
• Optical presence detection
• Infrared slot-style sensing assemblies
• Emitter-detector switching circuits
• Object counting sensor modules

Procurement Notes

When requesting a quote for XL-ITR1203, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.

If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.

For LED and optoelectronic sourcing, brightness bin, wavelength or color temperature bin, forward voltage range, viewing angle, moisture sensitivity level and soldering process limits may affect final selection, availability and lead time.