ISP621-4BLSMT&R

Transistor, Photovoltaic Output Optoisolators Overview

The ISP621-4BLSMT&R is a high-density, four-channel phototransistor optically coupled isolator manufactured by Isocom Components. It integrates an infrared emitting diode with NPN silicon phototransistors in a surface-mount package. The device provides electrical isolation with a rated voltage of 5300Vrms. Key electrical parameters include a maximum forward current of 50mA and a typical rise time of 2μs. It operates within a temperature range of -30°C to 100°C and features a minimum current transfer ratio of 100%.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four independent channels for high-density signal isolation
• High dielectric strength with 5300Vrms isolation rating
• Fast switching performance suitable for digital applications
• Surface-mount packaging for automated assembly

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring multi-channel isolation
• Power supply protection circuits
• Data communication interfaces
• Smart metering devices

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'BL' against the manufacturer's official datasheet to confirm lead frame material and RoHS compliance status. Ensure the ordering code matches the exact tape-and-reel quantity specified in the procurement documentation. Cross-reference the part number with the latest Isocom Components catalog to confirm active status and availability before finalizing purchase orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required in a compact footprint. The 5300Vrms rating supports high-voltage isolation requirements common in industrial environments. Verify that the input current limits and output characteristics align with the target circuit design. Consider the surface-mount form factor for PCB space constraints compared to through-hole alternatives.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP621 series of high-density phototransistor optocouplers from Isocom Components. The series is designed to replace legacy components while offering improved packing density. It utilizes standard NPN phototransistor technology paired with infrared LEDs for reliable optical coupling across various commercial and industrial applications.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

The TLP621-4GB is a documented equivalent offering similar four-channel DIP configuration. Verify pinout compatibility and isolation voltage ratings when substituting. Check if the replacement meets the specific thermal and electrical requirements of the original design.