ISP521-4XSMT&R

Transistor, Photovoltaic Output Optoisolators Overview

The ISP521-4XSMT&R is a four-channel phototransistor optocoupler from Isocom Components, designed for high-density mounting applications. It integrates infrared light-emitting diodes with NPN silicon photo transistors in a surface-mount package. The device provides electrical isolation with a maximum insulation voltage of 5300 Vrms and a peak isolation voltage of 7.5 kVpK. Key electrical parameters include a minimum collector-emitter breakdown voltage (BVCEO) of 55 V and a minimum current transfer ratio of 50%. The unit operates within a temperature range of -30°C to 100°C and features 100% tested electrical parameters.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates four independent channels of infrared LEDs and NPN silicon phototransistors for multi-signal isolation
• Provides high dielectric isolation capability with specified RMS and peak voltage ratings
• Ensures signal integrity through guaranteed minimum current transfer ratios across all channels
• Utilizes space-efficient surface-mount packaging suitable for automated assembly processes

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals and peripheral interface circuits
• Industrial system controllers and automation logic
• Signal transmission between systems with different potentials and impedances
• Measuring instruments requiring galvanic isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix configuration against official documentation to confirm lead spread dimensions and tape-and-reel specifications. Ensure that the selected variant matches the required current transfer ratio and isolation voltage standards for the target application circuit design.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when multiple isolated channels are required in a compact footprint. The four-channel configuration supports complex control signals where individual line isolation is necessary. Consider the surface-mount format for PCB density requirements and verify thermal management capabilities within the operational temperature range.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to the ISP521 series of high-density mounting phototransistor optically coupled isolators manufactured by Isocom Components. The series utilizes standard infrared LED and NPN phototransistor technology housed in plastic packages. The 'SMT&R' designation indicates a surface-mount version supplied in tape-and-reel packaging for efficient manufacturing integration.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Compatible substitutes include the TLP521-4GB and TLP521-4BLSM from Isocom Components. These alternatives share similar channel counts and phototransistor output configurations. Verify pinout compatibility and electrical parameter tolerances before implementation.