ISP817X-3SM

Transistor, Photovoltaic Output Optoisolators Overview

The ISP817X-3SM is a high-density mounting phototransistor optically coupled isolator manufactured by Isocom Components. This single-channel device features an NPN phototransistor output and accepts DC input signals. It is housed in a surface-mount DIP package with four pins, designed for compact circuit layouts. The component provides electrical isolation with a rated voltage of 5300 Vrms. Key electrical parameters include a maximum forward voltage of 1.4V, a typical rise time of 4μs, and a typical fall time of 3μs. The unit operates within a temperature range of -30°C to 100°C and carries UL recognition certification.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using infrared light transmission
• Features a high-density surface-mount package design suitable for automated assembly
• Utilizes an NPN phototransistor output stage for digital signal switching applications

Transistor, Photovoltaic Output Optoisolators Applications

• Logic-to-logic isolation in noisy industrial environments
• Line receiver circuits for data communication interfaces
• Digital control systems for motors and servo machines
• Computer peripheral interface isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pinout configuration and lead form variations. Ensure that the selected variant matches the required surface-mount footprint and thermal characteristics for the target PCB layout. Cross-reference certification marks such as UL or VDE if regulatory compliance is mandatory for the end application.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel phototransistor output is required for low-speed digital isolation tasks. Consider the 5300 Vrms isolation rating for safety-critical barriers. Evaluate the surface-mount package constraints against available board space. Confirm that the operating temperature range aligns with the environmental conditions of the intended deployment scenario.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP series of high-density mounting phototransistor optically coupled isolators from Isocom Components. The series includes various channel configurations and output types designed to replace common industry-standard discrete optocouplers. These devices are engineered for commercial applications requiring reliable signal transfer across isolated boundaries.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers: TLP521, TLP621, SFH615A, H11L1, H11L2, H11L3, H11L4.