ISP844ASMT&R

Transistor, Photovoltaic Output Optoisolators Overview

The ISP844ASMT&R is a quad optocoupler manufactured by Isocom Components 2004 LTD. It features four independent channels with transistor outputs and accepts AC input signals. The device is housed in a 16-SMD, Gull Wing package. Key electrical specifications include a maximum forward voltage of 1.5V, a maximum input current of 50mA, and an isolation voltage of 5.3kVrms. The typical rise time is 4μs, while the typical fall time is 3μs. The minimum current transfer ratio is 160%, and the maximum is 500%.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides four isolated signal paths within a single surface-mount package for compact circuit design.
• Capable of processing alternating current inputs directly without external rectification components.
• Offers high-voltage isolation capability to protect sensitive downstream electronics from transient voltages.

Transistor, Photovoltaic Output Optoisolators Applications

• Multi-channel data transmission systems requiring galvanic isolation.
• Industrial control interfaces where multiple signal lines share a common ground reference.
• Power supply feedback loops involving multiple regulated outputs.

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'R' indicates the reel packaging format when sourcing. Confirm the 16-SMD gull-wing footprint matches the target PCB layout. Ensure the AC input requirement aligns with the driving circuit capabilities. Check for RoHS compliance status if required by project specifications. Validate the operating temperature range against environmental conditions.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Choose this component when multiple isolated channels are needed in a space-constrained area. The AC input feature simplifies driver circuitry compared to DC-only optocouplers. The high current transfer ratio ensures reliable switching even with low input currents. Consider the thermal dissipation characteristics of the SMD package during selection.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP series of optocouplers from Isocom Components. The series focuses on infrared optoelectronic devices for signal isolation. The quad configuration distinguishes it from single-channel variants like the ISP814X. It represents a solution for integrating multiple isolation barriers into dense electronic assemblies.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes may include other quad optocouplers with similar pinouts and electrical ratings. Verify compatibility with existing PCB footprints before substitution. Ensure replacement parts meet the same isolation voltage and current transfer ratio requirements.