ISP845-3

Transistor, Photovoltaic Output Optoisolators Overview

The ISP845-3 is a quad optocoupler manufactured by Isocom Components 2004 LTD, featuring four independent channels within a single package. It utilizes Darlington transistor outputs to provide high current transfer ratios suitable for driving loads directly. The device offers an isolation voltage of 5300Vrms, ensuring robust electrical separation between input and output circuits. Designed for surface mount applications, it is housed in a 16-pin PDIP or SMD configuration depending on the specific suffix variant. The component supports a maximum forward current of 50mA per channel and operates across a wide temperature range.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Quad-channel architecture providing four isolated signal paths in a compact footprint
• Darlington transistor output stage enabling high current gain and direct load driving capability
• High isolation voltage rating of 5300Vrms for enhanced safety and noise immunity
• Surface mount packaging options designed for automated assembly processes

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring multi-channel signal isolation
• Power supply units needing feedback loop isolation
• Data communication interfaces with galvanic isolation requirements
• Medical equipment demanding strict safety isolation standards

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the exact suffix (e.g., SMT&R) to confirm the specific package type and reel quantity. Ensure the datasheet matches the required isolation voltage and current transfer ratio for your circuit design. Check RoHS compliance status if environmental regulations apply. Confirm availability through authorized distributors as lead times may vary. Validate pinout compatibility with existing PCB layouts before ordering.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are needed without increasing board space significantly. The Darlington output is ideal for applications requiring higher output current than standard phototransistors. Consider the 5300Vrms isolation rating for high-voltage environments. Evaluate thermal management needs based on the total power dissipation of all four channels. Compare against single-channel alternatives if cost or space constraints allow for different configurations.

Transistor, Photovoltaic Output Optoisolators Part Context

Isocom Components 2004 LTD specializes in infrared optoelectronic devices, offering replacements for obsolete components. The ISP845 series falls under their portfolio of high-performance optocouplers designed for industrial and commercial applications. This quad configuration addresses the need for compact, multi-channel isolation solutions in modern electronic designs where space efficiency and reliability are critical.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Check for direct pin-to-pin compatible quad optocouplers with similar CTR and isolation ratings. Verify that replacement parts support the same Darlington output configuration. Ensure the substitute component meets the 5300Vrms isolation requirement. Confirm package dimensions match the existing footprint to avoid PCB redesign.