ISP817-1SMT&R

Transistor, Photovoltaic Output Optoisolators Overview

The ISP817-1SMT&R is a surface-mount phototransistor optically coupled isolator manufactured by Isocom Components. It features a single channel with an NPN phototransistor output and operates with DC input current. The device utilizes a 4-pin SMD-4 package, providing high-density mounting capabilities. Key electrical parameters include a maximum forward voltage of 1.4V, a typical rise time of 4µs, and a typical fall time of 3µs. It offers a minimum isolation voltage of 5300 Vrms and supports a maximum input current of 50 mA.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides optical isolation between input and output circuits using a phototransistor output configuration.
• Designed for high-density mounting applications via a compact surface-mount package.
• Capable of handling direct current input signals for digital or analog signal transmission.

Transistor, Photovoltaic Output Optoisolators Applications

• Signal isolation in industrial control systems
• Interface circuits for microprocessors and logic devices
• Power supply feedback loops

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix and tape-and-reel packaging details against the manufacturer's latest datasheet to ensure compatibility with automated assembly processes. Confirm that the component meets required safety certifications such as UL recognition or VDE approval if applicable to the end equipment. Ensure the operating temperature range aligns with the system's thermal environment specifications.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel, surface-mount optocoupler with moderate speed characteristics is required. Consider the 5300 Vrms isolation rating for basic insulation needs. Evaluate the 4µs rise time and 3µs fall time against the system's switching frequency requirements to ensure adequate signal integrity without excessive delay.

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 includes various pin configurations and mounting styles, such as through-hole DIP and other surface-mount variants like the ISP817BLSM. These components are designed to replace standard 4N25-type optocouplers in modern PCB layouts requiring reduced footprint.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers for this specific model are not available in the provided documentation. Verify functional equivalence with generic 4N25-series surface-mount optocouplers only after confirming pinout and electrical parameter alignment with official datasheets.