RN1962TE85LF

Overview

The RN1962 is a dual NPN bias resistor built-in transistor manufactured by Toshiba Semiconductor and Storage. It integrates two NPN epitaxial planar transistors with associated base bias resistors into a single surface-mount package, specifically the US6 (SOT-363) configuration. This component is designed to reduce circuit board space and assembly costs by eliminating external biasing components. The device operates within a collector-emitter voltage range of up to 50V and supports a continuous collector current of 100mA. It features a low power dissipation rating suitable for portable applications and maintains a wide operating temperature range from -55°C to +150°C junction temperature.

Feature Summary

• Integrates dual NPN transistors with pre-defined bias resistors to minimize external component count
• Utilizes ultra-small US6 surface-mount packaging for high-density board layouts
• Designed for switching, inverter, and driver circuits in compact electronic devices

Applications

• Switching circuits in portable consumer electronics
• Inverter logic circuits requiring compact form factors
• Driver circuits for low-power loads in mobile equipment

Procurement Notes

Verify the exact suffix configuration against official Toshiba documentation, as variations such as TE85L,F denote specific tape-and-reel packaging formats. Confirm availability status directly with authorized distributors, as lead times and stock levels fluctuate. Ensure compatibility with RoHS directives if required by your manufacturing standards. Cross-reference pinouts carefully when replacing legacy components to prevent circuit misalignment.

Selection Notes

Select this component when space constraints necessitate integrated biasing solutions for dual NPN switching applications. Evaluate the internal resistor values provided in the datasheet to ensure they match your circuit's base drive requirements without additional external resistors. Consider the thermal characteristics and maximum power dissipation limits relative to your expected operating currents and ambient temperatures to maintain reliability.

Part Context

The RN1962 belongs to Toshiba's line of Bias Resistor Built-In Transistors (BRBTs), which are engineered to simplify digital and analog switching designs. These devices consolidate multiple discrete components into single packages, enhancing reliability by reducing solder joints. The US6 package variant offers a compact footprint ideal for modern miniaturized electronics, distinguishing it from larger through-hole or standard SMD transistor alternatives.

Replacement Considerations

When substituting the RN1962, identify equivalent dual NPN BRBTs from other manufacturers that match the US6/SOT-363 package dimensions. Verify that the replacement part shares identical internal resistance values and electrical ratings, including Vceo, Ic, and hFE. Ensure the alternative component meets the same thermal and voltage specifications to guarantee functional parity in the existing circuit design.