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ISP817D is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists Isocom Components 2004 LTD. Its product description is OPTOISOLATOR 5.3KV 1CH TRANS. Review the specifications below when checking this part for your BOM.
The ISP817D is a single-channel phototransistor optocoupler manufactured by Isocom Components. It features a GaAs infrared LED coupled to an NPN silicon phototransistor within a compact surface-mount package. The device provides electrical isolation with a rated isolation voltage of 5300 Vrms. Key electrical parameters include a maximum forward voltage of 1.4V, a typical rise time of 4µs, and a typical fall time of 3µs. The unit supports a maximum input current of 50 mA and operates across a wide temperature range.
Verify the specific suffix against official Isocom documentation to confirm pinout compatibility and package dimensions. Ensure the selected variant matches the required CTR specifications for the target circuit design. Cross-reference datasheet revisions to confirm parameter consistency before finalizing procurement orders.
Select this component when high-density surface-mount isolation is required for single-channel applications. Consider the 5300 Vrms isolation rating for safety-critical circuits. Evaluate the 4µs/3µs switching speeds against system timing requirements. Confirm thermal management needs based on the 70 mW power dissipation limit.
The ISP817D belongs to the ISP817 series of high-density mounting phototransistor optically coupled isolators from Isocom Components. This series is designed as a replacement for legacy through-hole devices, offering similar electrical characteristics in a compact surface-mount form factor suitable for modern PCB layouts.
Publicly confirmed substitute part numbers are not available in the provided source material.
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