ISP817SM

Transistor, Photovoltaic Output Optoisolators Overview

The ISP817SM is a surface-mount, single-channel phototransistor optocoupler manufactured by Isocom Components. It features a DIP-style SMD package with four pins and utilizes an NPN phototransistor output device. The component supports DC input current types and provides high-density mounting capabilities for circuit isolation. Key electrical parameters include a maximum forward voltage of 1.4V, a maximum input current of 50mA, and an isolation voltage rating of 5300 Vrms. The typical rise time is specified at 4µs, while the typical fall time is 3µs. The device operates within a temperature range of -55°C to 125°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides reliable galvanic isolation between input and output circuits using optical transmission.
• Designed for high-density surface-mount applications to facilitate compact PCB layouts.
• Features fast switching characteristics suitable for digital signal transmission.

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring signal isolation
• Power supply units for feedback loop isolation
• Data acquisition modules

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'SM' confirms the surface-mount configuration and pinout compatibility with your design footprint. Ensure the ordering documentation explicitly states the NPN phototransistor output type. Confirm that the 5300 Vrms isolation rating meets your safety standards requirements. Cross-reference the datasheet for thermal dissipation limits during procurement validation.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel, high-isolation voltage optocoupler is required in a surface-mount form factor. It serves as a direct replacement for standard DIP-4 optocouplers where board space is limited. Consider the 50mA maximum input current and 80V collector-emitter voltage limits when designing the driving and load circuits. Verify that the 4µs rise time aligns with your system's speed requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP817 series of high-density mounting phototransistor optically coupled isolators from Isocom Components. The series is designed to replace common commercial optocouplers, offering various lead forms and packaging options. These components are manufactured according to global industry standards and are often used as alternatives to parts discontinued by other manufacturers.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers: CNY17-1SMT&R, ISP817DXSM.