TLP188(GB-TPL,E

Overview

The TLP188(GB-TPL,E is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates an infrared emitting diode and a phototransistor within a compact surface-mount package. The device provides high isolation performance with a rated insulation voltage of 3750Vrms. Key electrical specifications include a collector-emitter saturation voltage of 300mV maximum, a forward current of 50mA maximum, and a collector current of 50mA. It operates reliably across a wide temperature range from -55°C to +125°C.

Feature Summary

• Provides galvanic isolation between input control circuits and output load circuits using optical transmission.
• Features a low collector-emitter saturation voltage to minimize power loss in the output stage.
• Designed for surface-mount assembly to facilitate automated manufacturing processes.
• Complies with international safety standards for electrical isolation.

Applications

• Programmable logic controller (PLC) input modules
• AC/DC input interface circuits
• Telephone equipment signal isolation
• Telecommunication system interfaces

Procurement Notes

Verify the specific suffix GB-TPL,E against the manufacturer's latest datasheet to confirm pinout configuration and packaging type. Ensure the component meets required safety certifications such as UL or VDE for the intended application environment. Cross-reference the ordering code with official distributor catalogs to avoid confusion with similar family members that may have different thermal or electrical characteristics.

Selection Notes

Select this component when a single channel of high-voltage isolation is required for digital signal switching. Consider the 50mA collector current limit and the 80V collector-emitter voltage rating to ensure compatibility with the driven load. Evaluate the operating temperature range requirements against the specified -55°C to +125°C limit. Verify that the SOP-6 package dimensions fit the available printed circuit board space constraints.

Part Context

This part belongs to the TLP188 series of transistor output optocouplers. It shares functional similarities with other Toshiba isolators but is distinguished by its specific isolation voltage rating and package style. The series is commonly used in industrial automation and consumer electronics where reliable signal transfer across potential differences is necessary.

Replacement Considerations

Direct replacements include TLP188(GB,E for tube packaging variants. Other compatible options within the same family may include TLP183 or TLP184, provided their electrical parameters such as CTR and isolation voltage meet the design requirements. Always verify pin compatibility before substitution.