IS627SM

Transistor, Photovoltaic Output Optoisolators Overview

The IS627SM is a high-voltage Darlington output optically coupled isolator manufactured by Isocom Components 2004 LTD. It integrates an infrared light-emitting diode with a high-voltage NPN silicon photo-Darlington transistor featuring an integral base-emitter resistor to optimize switching speed and elevated temperature performance. The device provides a minimum isolation voltage of 5300Vrms (7500Vpk) and a minimum current transfer ratio of 1000%. It operates within a forward current range up to 50mA and supports a collector-emitter breakdown voltage of at least 300V.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability for robust electrical separation
• Integral base-emitter resistor optimizes switching speed and thermal stability
• High current transfer ratio ensures efficient signal transmission
• Standard 4-pin dual in-line plastic package design

Transistor, Photovoltaic Output Optoisolators Applications

• Modems
• Copiers and facsimiles
• Numerical control machines
• Signal transmission between systems of different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'SM' confirms surface mount packaging configuration as documented in official Isocom datasheets. Confirm that the part number corresponds to the standard 4-pin DIP form factor variant rather than alternative lead spread options. Ensure compliance with RoHS standards if required by the application environment. Cross-reference the manufacturer's latest documentation to validate current production status and availability before finalizing procurement plans.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high voltage isolation and high gain are critical requirements. The integrated base-emitter resistor makes it suitable for applications demanding fast switching speeds without external components. Consider the 300V collector-emitter breakdown voltage for driving higher load voltages compared to standard phototransistor couplers. Evaluate the 1000% minimum CTR for low input current drive capabilities.

Transistor, Photovoltaic Output Optoisolators Part Context

The IS627SM belongs to the TLP627 series of optocouplers, originally designed by Toshiba Semiconductor and now manufactured by Isocom Components 2004 LTD. This series is characterized by its Darlington output structure, which provides significantly higher current transfer ratios than standard phototransistor outputs. The 'SM' suffix typically denotes a surface mount package variant within the broader family of 4-pin isolators.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include other Darlington output optocouplers with similar isolation ratings and pin configurations. Verify compatibility with existing PCB footprints if replacing through-hole variants with surface mount versions. Check that the replacement device meets or exceeds the 5300Vrms isolation and 1000% CTR specifications.