The RN1402(TE85R) is a resistor-equipped transistor (RET), manufactured by Toshiba Semiconductor and Storage. This component integrates a transistor and a resistor into a single, compact package, offering a space-saving solution and simplifying circuit designs. It's primarily used in digital circuits for switching, inverter, and driver applications where minimizing board space and component count are important.

Applications

• Digital Circuits
• Switching Circuits
• Inverter Circuits
• Driver Circuits
• Load Switching

Features

• Integrated resistor network
• Surface Mount Device (SMD)
• Compact package size
• Reduced component count for simplified designs

Benefits

• Saves board space by combining transistor and resistor functions into a single component.
• Lowers assembly costs due to fewer components needing placement.
• Simplifies circuit design by reducing the need for external resistors.
• Enhances circuit reliability by reducing the number of solder joints.

Additional Details

The RN1402(TE85R) is typically housed in a small surface-mount package, such as a SOT-23. The integrated resistor is internally connected, simplifying external circuit connections. The exact resistor value is given in the datasheet, and is usually related to the device part number.

This RET device is designed to operate with low voltages and currents, making it suitable for portable and low-power applications. It is crucial to consult the datasheet for specific electrical characteristics, such as voltage ratings, current limits, and resistor values, to ensure proper and safe operation. Adhering to recommended operating conditions will maximize its lifespan and reliability.

Consideration must be given to the power dissipation requirements of both the resistor and the transistor to prevent overheating. Proper thermal management techniques, such as appropriate PCB layout, may be necessary.