Long Range Retro-reflective Sensor VTR24F1 PRODUCT DESCRIPTION FEATURES This retro-reflective sensor combines an infrared emitting diode and a unique photodarlington output to provide high sensitivity while rejecting ambient light. It has a very long sensing range (up to 4 inches) compared to ordinary retros. • Low Cost • Small Package Size • Long Sensing Range (up to 4 inches) • Detects Low/Diffuse Reflectance Surfaces The output of this sensor is activated when a reflective surface is brought into its field of view. The sensor housing is molded polycarbonate with a slotted flange for easy mounting. SPECIFICATIONS @ 25°C Parameter Output Current IF = 20 mA Ambient Sensitivity Crosstalk IF = 0 (5) mA (1) (2) IF = 20 mA (3) Output Saturation Voltage IF = 20 mA (1) IP = 10 mA Symbol Min. Typ. IP 6 15 Max. Units mA IA 30 100 µA ICX 5 30 µA VSAT 0.9 1.2 V NOTES 1. Distance to 90% reflectance paper = 0.6", VCE = 5V. 2. 100 fc fluorescent light incident upon target surface. 3. No target surface. 4. Referenced to optical centerline of sensor, VCE = 5V, IF = 20 mA. 5. Distance to 90% reflectance paper = 2.0", VCE = 5V. TYPICAL TRIP POINT PERFORMANCE (4) PerkinElmer Optoelectronics, 10900 Page Ave., St. Louis, MO 63132 USA Phone: 314-423-4900 Fax: 314-423-3956 Web: www.perkinelmer.com/opto 26 ABSOLUTE MAXIMUM RATINGS @ 25°C UNLESS NOTED Parameter Symbol Rating Units Operating TA -40 to +85 °C Storage TS -40 to +85 °C IF 40 mA IR Emitter PD EMITTER 75 mW IR Detector Temperature Range Continuous Emitter Current Output Power Dissipation (derate 1.36 mW/°C above 30°C) PD DETECTOR 75 mW Emitter Reverse Voltage VR 2.0 V Detector Voltage VCE 30 V TYPICAL PERFORMANCE CURVES @ 25°C Output Current vs. Sensing Distance PACKAGE DIMENSIONS inches (mm) Schematic Specifications subject to change without prior notice. Information supplied by PerkinElmer Optoelectronics is believed to be reliable, however, no responsibility is assumed for possible inaccuracies or omissions. The user should determine the suitability of this product in his own application. No patent rights are granted to any devices or circuits described herein. PerkinElmer Optoelectronics, 10900 Page Ave., St. Louis, MO 63132 USA Phone: 314-423-4900 Fax: 314-423-3956 Web: www.perkinelmer.com/opto 27