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Manufacturer Part #
62N11-040C
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Description of ChangeGrayhill currently uses die-and-wire bonded optics in the assembly of 62C, 62N, and 62R Optical Encoders. In order to improve production throughput, Grayhill will convert to surface mount technology optics for these series. This change includes the following:- Replace wire bonded Three-Five Compounds TCD850 LED with SMT Kingbright APH1608-LM32 LED- Replace wire bonded Opto Tech ST-0124 Phototransistor with SMT Three-Five CompoundsTFE7-21/0124 Phototransistor- Addition of Fairchild Semiconductor NC7WZ17P6X Dual Buffer with Schmitt Trigger- Various resistor and capacitor changes in accordance with the changes above.This change will result in the output circuit being changed from an Open Collector type to a Push-Pull type. In most applications the new surface mount optics encoder will work as a drop in replacement for the old die and wire bond version. However, in applications where the pull-up resistors on the encoder outputs are connected to a voltage different than the voltage on the power pin, the new surface mount optics encoder will not operate correctly and should not be used. An example of where the new surface mount optics encoder will not operate correctly is as follows: encoder power pin tied to 3.3V and output pull-up resistors tied to 5.0V.Reason for Change:Grayhill?s current wire bonding manufacturing equipment is nearing the end of its service life and is being replaced with SMT technology to prevent any future supply interruptions to our customers.
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Inventory held at our manufacturer's warehouse. Subject to availability and transit time.
