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TLP521XSM is listed in the Transistor, Photovoltaic Output Optoisolators range at ChipApex. The manufacturer field lists Isocom Components 2004 LTD. Its product description is OPTOISOLTR 5.3KV 1CH TRANS 4-SMD. Review the specifications below when checking this part for your BOM.
The TLP521XSM is a single-channel optocoupler manufactured by Isocom Components 2004 LTD. It features an infrared LED coupled to an NPN silicon phototransistor in a surface-mount package. The device provides high isolation with a rated voltage of 5300Vrms and a peak value of 7500Vpk. Key electrical parameters include a maximum forward voltage of 1.3V at 10mA input current, a minimum collector-emitter breakdown voltage (BVCEO) of 55V, and a typical rise time of 4μs. The unit is supplied in a 4-SMD configuration.
Verify the specific suffix 'XSM' corresponds to the required surface-mount package type and tape-and-reel availability if applicable. Confirm that the 5300Vrms isolation rating meets the safety requirements of the target application environment. Ensure compatibility with standard SMT assembly processes for the 4-pin form factor.
Select this component when a compact, single-channel isolation solution is required for low-to-medium speed digital signals. The NPN output is suitable for interfacing with logic circuits requiring open-collector characteristics. Consider the thermal management capabilities of the surface-mount package during high-frequency operation.
The TLP521XSM belongs to the TLP521 series of optically coupled isolators from Isocom Components. This series is designed for general-purpose isolation applications where electrical safety and signal integrity are critical. The 'XSM' designation indicates a specific surface-mount variant within the broader family of through-hole and SMD options available in the TLP521 line.
Compatible replacements include the TLP521-1SM and TLP521-1GB for equivalent single-channel functionality. Verify pinout compatibility and isolation voltage ratings when substituting with other manufacturers' equivalents such as the PC123 or H11L1 series.
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