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PC81712NSZ0F Datasheet(PDF) 9 Page - Sharp Corporation |
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PC81712NSZ0F Datasheet(HTML) 9 Page - Sharp Corporation |
9 / 14 page Sheet No.: D2-A03302EN ■ Design Considerations While operating at IF<0.5mA, CTR variation may increase. Please make design considering this fact. In case that some sudden big noise caused by voltage variation is provided between primary and secondary terminals of photocoupler some current caused by it is floating capacitance may be generated and result in false operation since current may go through IRED or current may change. If the photocoupler may be used under the circumstances where noise will be generated we recommend to use the bypass capacitors at the both ends of IRED. This product is not designed against irradiation and incorporates non-coherent IRED. ● Degradation In general, the emission of the IRED used in photocouplers will degrade over time. In the case of long term operation, please take the general IRED degradation (50% degradation over 5 years) into the design consideration. ● Recommended Foot Print (reference) ✩ For additional design assistance, please review our corresponding Optoelectronic Application Notes. 9 2.2 8.2 (Unit : mm) ● Design guide PC8171xNSZ0F Series |
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