ISP817BLSM

Transistor, Photovoltaic Output Optoisolators Overview

The ISP817BLSM is a surface-mount, single-channel optocoupler from the Isocom ISP817 series. It features an NPN phototransistor output and operates with a maximum forward voltage of 1.4V and a typical rise time of 4µs. The device provides high isolation voltage of 5300Vrms minimum and supports a wide operating temperature range from -55°C to +125°C. Key electrical parameters include a maximum input current of 50mA, a typical fall time of 3µs, and a current transfer ratio ranging from 200% to 600%. Packaged in SMD-4, it is designed for robust signal isolation in compact electronic circuits.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High-density surface-mount packaging for automated assembly
• NPN phototransistor output configuration
• Wide operating temperature range capability
• High isolation voltage rating

Transistor, Photovoltaic Output Optoisolators Applications

• Logic-to-logic isolation in noisy environments
• Line receiver applications
• Programmable current level sensing
• Computer and peripheral device interfaces

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'BLSM' against official datasheets to confirm package dimensions and tape-and-reel specifications. Ensure compliance with RoHS directives and UL/VDE certifications required for your target market. Cross-reference pinout configurations with standard DIP equivalents if transitioning from through-hole designs. Confirm availability of engineering samples before mass production commitment.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high density and wide temperature operation are critical. The NPN output suits digital switching applications requiring fast response times. Compare CTR ranges against load requirements to ensure reliable saturation. Consider thermal dissipation limits within the SMD-4 footprint during PCB layout planning.

Transistor, Photovoltaic Output Optoisolators Part Context

Part of the ISP817 family, designed as a direct replacement for industry-standard 4-pin optocouplers. Manufactured by Isocom Components 2004 Ltd., known for producing discontinued or hard-to-find optical isolators. The series maintains compatibility with common commercial standards while offering specialized parameter selections.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes include TLP817, PC817, and SFH615A variants. Verify pin compatibility and CTR specifications before substitution. Ensure replacement parts meet the same isolation voltage and temperature ratings.