RN1422TE85LF

Overview

The RN1422TE85LF is a pre-biased NPN bipolar junction transistor (BJT) manufactured by Toshiba Semiconductor and Storage. It integrates internal biasing resistors within a compact surface-mount package, specifically the S-Mini (SC-74A/SOT-753) configuration. The device supports a maximum collector current of 800 mA and a collector-emitter voltage rating of 50 V. Key electrical characteristics include a transition frequency of 300 MHz and a power dissipation capacity of 200 mW. This component is designed for high-speed switching applications requiring efficient drive capabilities with minimal external circuitry.

Feature Summary

• Integrated dual biasing resistors simplify circuit design and reduce board space requirements
• High-speed switching capability with a 300 MHz transition frequency
• Robust current handling suitable for moderate load driving applications
• Compact surface-mount packaging facilitates automated assembly processes

Applications

• General-purpose signal switching in consumer electronics
• Driver circuits for small loads in industrial control systems
• Logic level translation interfaces in digital communication modules
• Power management switching elements in portable devices

Procurement Notes

Verify the exact ordering part number against official Toshiba Semiconductor and Storage documentation to ensure correct suffix alignment. Confirm that the TE85L designation matches the required tape-and-reel packaging specifications for your manufacturing line. Cross-reference the RoHS compliance status with current environmental regulations applicable to your region. Ensure that storage conditions adhere to moisture sensitivity level guidelines prior to soldering.

Selection Notes

Select this component when a single NPN transistor with integrated base resistance is preferred over discrete resistor configurations. Consider the 800 mA current limit and 50 V voltage rating to ensure adequate headroom for the target application's peak loads. Evaluate the thermal performance within the S-Mini package to confirm it meets the system's power dissipation constraints under continuous operation conditions.

Part Context

This part belongs to the RN series of pre-biased transistors from Toshiba, which are engineered to replace multiple discrete components. The RN1422 variant specifically utilizes an NPN configuration with defined internal resistor values to optimize turn-on and turn-off times. It serves as a standardized solution for designers seeking to minimize component count while maintaining reliable switching performance in compact electronic assemblies.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.