RN1401,LXHF

Overview

The RN1401,LXHF is a single NPN pre-biased digital transistor manufactured by Toshiba Semiconductor and Storage. It integrates bias resistors within an S-Mini (SOT-346) surface-mount package to simplify circuit design. Key electrical specifications include a collector-emitter voltage of 50V, a continuous collector current of 100mA, and a transition frequency of 250MHz. The device features typical base resistor values of 4.7kΩ for both series and emitter configurations. It is rated for power dissipation up to 200mW and supports operating temperatures up to +150°C.

Feature Summary

• Integrates built-in bias resistors to reduce component count and simplify circuit layout
• Designed for high-speed switching applications with a 250MHz transition frequency
• Automotive-grade reliability compliant with AEC-Q standards

Applications

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

Procurement Notes

Verify the specific suffix 'LXHF' against the official Toshiba datasheet to confirm it denotes the correct tape-and-reel packaging format and material composition. Ensure the order specification matches the required automotive qualification status if intended for AEC-Q applications. Cross-reference the manufacturer part number with authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when a compact NPN digital transistor solution is required for space-constrained designs. The integrated 4.7kΩ resistors are suitable for standard logic interface levels. Consider the 250MHz speed rating for high-frequency switching needs and verify that the 100mA current capacity meets the load requirements of the target application.

Part Context

This component belongs to Toshiba's RN14xx series of pre-biased bipolar transistors. These devices combine NPN or PNP transistors with internal bias networks in small packages like S-Mini. The series is engineered to replace multiple discrete components, offering a streamlined alternative for general-purpose switching and logic interface tasks in consumer and industrial electronics.

Replacement Considerations

Consult the official Toshiba cross-reference list for verified substitutes. Potential alternatives may include other single NPN pre-biased transistors with matching 50V ratings and similar resistance values, provided they fit the S-Mini footprint and meet the same thermal and electrical constraints.