ISP521-4XSM

Transistor, Photovoltaic Output Optoisolators Overview

The ISP521-4XSM is a high-density mounting phototransistor optically coupled isolator manufactured by Isocom Components. It consists of an infrared light emitting diode and four NPN silicon photo transistors in a space-efficient Dual In Line Plastic Package. The device provides electrical isolation with a rated voltage of 5300Vrms. Key electrical parameters include a maximum forward voltage of 1.3V, a typical rise time of 4μs, and a typical fall time of 3μs. The unit supports a maximum input current of 50mA and operates within a temperature range of -30°C to 100°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates four independent channels for multi-signal isolation
• Utilizes NPN silicon phototransistor output technology
• Designed for high-density surface or through-hole mounting applications

Transistor, Photovoltaic Output Optoisolators Applications

• Industrial control systems requiring multi-channel signal isolation
• Power supply protection circuits
• Data communication equipment

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix designation against official Isocom Component datasheets to confirm pinout compatibility and packaging variations. Ensure that the procurement source provides valid RoHS compliance documentation as indicated in related product listings. Cross-reference the manufacturer part number with authorized distributor catalogs to confirm availability and authenticity before finalizing orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required within a compact footprint. The four-channel configuration reduces board space compared to using single-channel units. Verify that the 5300Vrms isolation rating meets the safety requirements of the target application circuit. Confirm that the NPN phototransistor output characteristics align with the downstream logic or interface requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

This component belongs to the TLP521 series family of optically coupled isolators produced by Isocom Components. The series is characterized by high-density mounting capabilities and the use of infrared LEDs paired with NPN silicon phototransistors. These devices are engineered to replace common commercial optocouplers while offering flexible manufacturing options and adherence to global industry standards.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided source material.