TLP291(GRH-TP,SE

Transistor, Photovoltaic Output Optoisolators Overview

The TLP291(GRH-TP,SE is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates a GaAs infrared LED and a phototransistor within a compact SO-4 surface-mount package. The device provides an isolation voltage of 3750 Vrms, ensuring robust electrical separation between input and output circuits. Key electrical parameters include a maximum collector-emitter voltage of 80 V and a continuous collector current of 50 mA. The unit operates reliably across a wide temperature range from -55°C to +110°C, with a power dissipation rating of 200 mW.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability for safe circuit separation
• Compact four-pin surface-mount packaging for space-constrained designs
• Wide operating temperature range suitable for industrial environments

Transistor, Photovoltaic Output Optoisolators Applications

• General-purpose signal isolation in industrial control systems
• Interface circuits for microcontrollers and logic devices
• Power supply feedback loops requiring galvanic isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify the specific suffix GRH against the manufacturer's official datasheet to confirm compliance with regional safety certifications such as UL, CSA, or EN standards. Ensure the ordering code matches the required tape-and-reel packaging format. Cross-reference the part number with authorized distributors to confirm active production status and availability before finalizing procurement plans.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and small form factor are critical requirements. The SO-4 package offers a balance between thermal performance and board space efficiency. Consider the 80 V collector-emitter voltage limit and 50 mA current capacity to ensure adequate headroom for the target application's load conditions and switching speeds.

Transistor, Photovoltaic Output Optoisolators Part Context

This component belongs to the TLP series of transistor output optocouplers from Toshiba. The series is designed for general-purpose applications requiring reliable electrical isolation. The TLP291 variant specifically utilizes a GaAs infrared emitter paired with a silicon phototransistor to achieve efficient signal transmission while maintaining high dielectric strength between the isolated sides.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes may include other single-channel transistor output optocouplers in SO-4 packages with comparable isolation ratings. Verify pinout compatibility and electrical specifications such as CTR and breakdown voltages before substitution.