ISP817BSM

Transistor, Photovoltaic Output Optoisolators Overview

The ISP817BSM is a surface-mount, single-channel optocoupler from the ISP series manufactured by Isocom Components. It integrates an infrared LED with an NPN silicon phototransistor in a compact SMD-4 package. The device provides high isolation voltage of 5300Vrms and supports a maximum forward current of 50mA. It features a typical rise time of 4µs and fall time of 3µs, with a minimum current transfer ratio of 200% and a maximum of 600%. Operating temperatures range from -30°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High density mounting in space-efficient surface mount packages
• High isolation voltage capability for robust circuit protection
• High current transfer ratio for efficient signal transmission
• All electrical parameters are 100% tested during manufacturing

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals
• Industrial systems controllers
• Measuring instruments

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'BSM' against official datasheets to confirm lead form and electrical tolerances. Ensure compatibility with RoHS standards and check for UL or VDE approvals required by the target application. Confirm availability through authorized distributors as stock levels vary.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a surface-mount solution is required for logic-to-logic isolation or line receiving applications. Consider the 5300Vrms isolation rating for safety-critical interfaces. Verify that the NPN phototransistor output matches the load requirements and that the operating temperature range fits the environmental conditions.

Transistor, Photovoltaic Output Optoisolators Part Context

The ISP817BSM belongs to the ISP817/ISP827/ISP847 family of high-density mounting phototransistor optically coupled isolators. These devices are designed as industry-standard replacements for obsolete components. The series offers various lead forms including standard DIP, extended pitch (G), and surface mount (SM) options to suit different PCB layouts.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers include TLP521, TLP621, SFH615A, PS2505, and H11L1. Verify pinout compatibility and electrical parameter margins before substitution.