TLP521BLSM

Transistor, Photovoltaic Output Optoisolators Overview

The TLP521BLSM is a single-channel optocoupler from Isocom Components, featuring a surface-mount DIP package with four pins. It utilizes an infrared LED input and a phototransistor output for signal isolation. Key electrical parameters include a maximum forward voltage of 1.3V, a maximum collector-emitter voltage of 80V, and a typical current transfer ratio of 6%. The device provides high isolation capability with a rated isolation voltage of 5300Vrms. Operating characteristics specify a minimum operating temperature of -30°C and a maximum of 100°C, with typical rise and fall times of 4μs and 3μs respectively.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Provides galvanic isolation between input and output circuits using infrared light transmission
• Features a compact surface-mount package suitable for automated assembly processes
• Designed for general-purpose digital signal switching applications

Transistor, Photovoltaic Output Optoisolators Applications

• General-purpose digital signal isolation
• Microprocessor system interface circuits
• Solid-state relay driver circuits

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'BLSM' against official manufacturer documentation to confirm exact pinout configuration and lead spacing requirements. Ensure that the selected component variant matches the intended PCB footprint and thermal management specifications for the target application environment.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel transistor output optocoupler is required for low-speed digital isolation. Consider the 5300Vrms isolation rating for safety compliance in mains-connected systems. Evaluate the 6% current transfer ratio to ensure adequate drive capability for downstream logic gates or microcontroller inputs within the design constraints.

Transistor, Photovoltaic Output Optoisolators Part Context

The TLP521 series represents a family of single, dual, and quad channel optocouplers widely used in industrial and consumer electronics. The BLSM designation indicates a specific surface-mount variant within this lineup, offering a compact alternative to through-hole packages while maintaining standard electrical performance characteristics for basic isolation tasks.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

TLP521-1BLSM

Transistor, Photovoltaic Output Optoisolators FAQ

What is the isolation voltage rating of the TLP521BLSM?

The device has a rated isolation voltage of 5300Vrms.

Does the TLP521BLSM support AC input signals directly?

No, it requires a DC forward current to drive the internal infrared LED; AC signals must be rectified before input.