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HEDS-1300 Datasheet(PDF) 2 Page - Agilent(Hewlett-Packard) |
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HEDS-1300 Datasheet(HTML) 2 Page - Agilent(Hewlett-Packard) |
2 / 8 page 4-23 HEDS-1300 Optical System Mechanical Considerations The HEDS-1200 and HEDS-1300 sensors are packaged in a high profile 8 pin TO5 metal can with a glass window. The emitter and photodetector chips are mounted on the header at the base of the package. Positioned above these active elements is a bifurcated aspheric acrylic lens that focuses them to the same point. The sensors can be rigidly secured by commercially available TO5 style heat sinks, or 8 pin 0.200 inch diameter pin circle sockets. These fixtures provide a stable reference platform for affixing the sensors to a circuit board. In applications requiring contact scanning, protective focusing tips are available. Focusing tips are available in either metal (HBCS- 2999 or HBCS-4999) or polycarbonate (HBCS-A998 or HBCS-A999) packages using a rugged sapphire ball as the contact surface. Electrical Operations Both the HEDS-1200 and HEDS- 1300 sensors have the following in common. The detector of the sensor is a single photodiode. The cathode of the emitter is physically and electrically connected to the case-substrate of the device. Applications that require modula- tion or switching of the LED should be designed to have the cathode connected to the electri- cal ground of the system. Refer to the Schematic and Connection Diagrams that follow. HEDS-1200 Optical System 17 35 26 8 4 TOP VIEW PIN # FUNCTION (HEDS-1200) 2 3 4 6 PHOTODIODE ANODE, SUBSTRATE, CASE PHOTODIODE CATHODE LED CATHODE, SUBSTRATE, CASE LED ANODE REFERENCE PLANE REFLECTOR 6 CASE, SUBSTRATE 4 DS DP 3 2 LED Z DP DS LED SCHEMATIC DIAGRAM CONNECTION DIAGRAM 7 35 26 4 TOP VIEW PIN # FUNCTION (HEDS-1300) 2 3 4 6 PHOTODIODE ANODE PHOTODIODE CATHODE LED CATHODE, SUBSTRATE, CASE LED ANODE REFERENCE PLANE REFLECTOR 6 *NO CONNECTION TO BE MADE TO PIN 1 AND PIN 8 4 DS 2 LED Z DP DS LED SCHEMATIC DIAGRAM CONNECTION DIAGRAM 3 DS TRANSISTOR NOT SPECIFIED 1* 8* 1* 8* |
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Similar Description - HEDS-1300 |
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