TLP631(GR,F)

Transistor, Photovoltaic Output Optoisolators Overview

The TLP631(GR,F) is a single-channel transistor output optocoupler manufactured by Toshiba Semiconductor and Storage. It integrates a Gallium Arsenide infrared emitting diode with a silicon photo-transistor, housed in a compact plastic DIP-4 package. The device provides high isolation voltage of 5000 Vrms (min.) between input and output circuits. Key electrical parameters include a collector-emitter breakdown voltage of 80 V (min.), a forward current of 60 mA (max.), and a nominal current transfer ratio of 100% for the GR rank. Operating temperatures range from -25 °C to 85 °C.

Transistor, Photovoltaic Output Optoisolators Feature Summary

• High isolation voltage capability of 5000 Vrms minimum between input and output sides
• Integrates a GaAs infrared LED with a silicon photo-transistor for efficient signal transmission
• Compact four-lead plastic DIP package designed for space-constrained applications

Transistor, Photovoltaic Output Optoisolators Applications

• Office equipment signal isolation
• Household appliance control circuits
• Solid state relay driver interfaces
• Switching power supply feedback loops
• Microcontroller interface circuits requiring galvanic isolation

Transistor, Photovoltaic Output Optoisolators Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm specific suffix designations such as 'GR' and 'F' match project requirements regarding current transfer ratio ranking and lead finish specifications. Ensure compliance with relevant safety certifications like UL recognition and VDE approval if required by the target application standards. Request official datasheets to validate electrical characteristics against design constraints.

Transistor, Photovoltaic Output Optoisolators Selection Notes

Select this component when high isolation voltage and compact form factor are critical. The GR rank ensures a minimum current transfer ratio of 100%, suitable for logic-level interfacing. Consider thermal dissipation limits within the DIP-4 package during high-frequency switching operations. Evaluate system voltage requirements against the 80 V collector-emitter breakdown rating to ensure adequate safety margins under transient conditions.

Transistor, Photovoltaic Output Optoisolators Part Context

This part belongs to Toshiba's TLP78x series of photocouplers, which are widely used for general-purpose signal isolation. The series offers various pin pitch options and isolation ratings. The TLP631 variant specifically targets applications requiring robust isolation in small packages. It complements other devices in the family that may offer different output types or higher speed capabilities depending on specific design needs.

Transistor, Photovoltaic Output Optoisolators Replacement Considerations

Direct substitutes within the same family include TLP781 and TLP781F, which share similar electrical characteristics but differ in DIP pitch dimensions. Verify pinout compatibility and isolation voltage ratings before substitution. Alternative manufacturers may offer functionally equivalent parts, but parameter matching and safety certification alignment must be confirmed.