TLP521-4G

Transistor, Photovoltaic Output Optoisolators Overview

The TLP521-4G is a four-channel through-hole optocoupler in a 16-pin DIP package. It features an infrared LED input and NPN phototransistor output. Key electrical parameters include a maximum forward voltage of 1.3V, isolation voltage of 5300Vrms, and typical rise/fall times of 2μs/3μs. The current transfer ratio ranges from 0.5% to 6%. Operating temperature spans -30°C to 100°C. Certified to UL standards, it supports AC input types with a maximum input current of 50mA.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Four independent channels for multi-signal isolation
• High isolation voltage capability for safety
• Standard DIP packaging for easy integration

Transistor, Photovoltaic Output Optoisolators Applications

• Logic-to-logic isolation in noisy environments
• Industrial control systems
• Power supply protection circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix (e.g., G) against the manufacturer's latest datasheet to confirm compliance with current environmental directives such as RoHS. Ensure the 16-pin DIP footprint matches the target PCB design. Cross-reference the current transfer ratio specifications with circuit requirements to guarantee adequate signal transmission margins under varying temperature conditions.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required within a single package to save board space. Consider the 5300Vrms isolation rating for applications demanding high safety barriers. Verify that the NPN transistor output configuration aligns with the downstream logic or interface requirements. Check if the AC input specification meets the source signal characteristics.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the TLP521 series by Isocom Components 2004 LTD, a manufacturer specializing in infrared optoelectronic devices. The series includes various channel configurations, such as single, dual, and quad versions, all sharing similar core isolation technologies. Isocom provides these components as industry-standard replacements for discontinued parts, maintaining consistent performance metrics across the family.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

TLP521-4