RN2112ACT(TPL3)

Overview

The RN2112ACT(TPL3) is a pre-biased digital transistor manufactured by Toshiba Semiconductor and Storage. It integrates an NPN bipolar junction transistor with built-in bias resistors into a compact surface-mount package. This configuration simplifies circuit design by reducing the component count required for switching applications. The device is engineered to provide reliable performance in low-power digital logic interfaces, offering consistent electrical characteristics suitable for modern electronic systems requiring space-efficient solutions.

Feature Summary

• Integrates NPN transistor with internal bias resistors to minimize external components
• Designed for simplified switching and interface circuit applications
• Utilizes compact surface-mount packaging for high-density board layouts

Applications

• Switching circuits
• Inverter circuits
• Interface circuits
• Driver circuits

Procurement Notes

Verify the specific ordering suffix TPL3 against the official Toshiba datasheet to confirm tape-and-reel packaging specifications. Ensure compatibility with automated assembly processes by checking reel dimensions and feeder requirements. Confirm RoHS compliance status through current manufacturer documentation before procurement.

Selection Notes

Select this component when a compact NPN solution with integrated biasing is required for digital switching tasks. Evaluate the voltage and current ratings against the target application's load conditions. Consider the thermal dissipation capabilities of the SOT-323 package relative to the expected power loss during operation.

Part Context

This part belongs to Toshiba's RN series of Bias Resistor Built-in Transistors (BRT). These devices are designed to replace discrete resistor-transistor combinations, thereby reducing PCB area and assembly costs. The series offers various configurations and polarities to suit diverse digital logic and interface requirements across consumer and industrial electronics.

Replacement Considerations

Consult official Toshiba substitution guides for verified equivalents. Cross-reference pinouts and electrical parameters such as Vceo and Ic with potential alternative BRTs from other manufacturers to ensure functional compatibility without redesign.