TLP621GB

Transistor, Photovoltaic Output Optoisolators Overview

The TLP621GB is a single-channel phototransistor optocoupler manufactured by Isocom Components 2004 LTD. It integrates an infrared emitting diode and an NPN silicon phototransistor in a space-efficient dual in-line plastic package (PDIP). The device provides high isolation voltage of 5.3 kVrms and 7.5 kV peak, with a minimum collector-emitter breakdown voltage (BVCEO) of 55 V. It features a high current transfer ratio of at least 50% and undergoes 100% electrical parameter testing. The component supports a wide operating temperature range from -30°C to +85°C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• Integrates an infrared LED and NPN silicon phototransistor for optical signal transmission
• Provides high electrical isolation between input and output circuits
• Ensures reliable performance through 100% electrical parameter testing
• Designed for high-density mounting in compact electronic assemblies

Transistor, Photovoltaic Output Optoisolators Applications

• Computer terminals
• Industrial systems controllers
• Measuring instruments
• Signal transmission between systems of different potentials and impedances

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix 'GB' corresponds to the standard lead spread configuration as documented in official Isocom datasheets. Confirm that the required current transfer ratio meets the minimum 50% specification for the target application circuit. Ensure the procurement source provides valid manufacturer documentation to validate the 5.3 kVrms isolation rating and BVCEO of 55 V. Cross-reference the PDIP package dimensions against mechanical constraints before finalizing orders.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when a single-channel isolation barrier is required between low-voltage control logic and higher-voltage loads. The NPN phototransistor output is suitable for interfacing with standard digital inputs or analog sensing circuits. Consider the 5.3 kVrms isolation capability for applications requiring robust protection against transient voltages. Evaluate the 50% minimum CTR to ensure sufficient drive capability for downstream components without excessive input current requirements.

Transistor, Photovoltaic Output Optoisolators Part Context

The TLP621 series belongs to Isocom's line of high-density mounting phototransistor optically coupled isolators. This family includes variants such as the TLP621-2 and TLP621-4, which offer two and four channels respectively within similar package footprints. The series is designed to replace common commercial optocouplers while offering custom electrical selections. Isocom manufactures these devices adhering to global industry standards, ensuring compatibility with existing designs requiring reliable galvanic isolation.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and isolation voltage ratings if considering alternative manufacturers. Check if equivalent parts support the same 5.3 kVrms isolation and 55 V BVCEO specifications.