RN4903FE,LXHF(CT

Overview

The RN4903FE,LXHF(CT is a digital transistor array manufactured by Toshiba Semiconductor and Storage, featuring one NPN and one PNP pre-biased transistor pair. It is housed in the US-6 (SOT-363) surface-mount package and holds AEC-Q101 automotive qualification. The device specifies a maximum collector-emitter voltage of -50V and a continuous collector current of 100mA. Typical base resistors are 22kΩ for both transistors with a ratio of 1. Key electrical parameters include a minimum DC current gain (hFE) of 70, a transition frequency of 200MHz/250MHz, and a power dissipation rating of 200mW at an operating temperature up to +150°C.

Feature Summary

• Automotive-grade reliability certified under AEC-Q101 standards
• Integrated dual pre-bias configuration combining NPN and PNP transistors
• High switching performance supported by specified transition frequencies

Applications

• Automotive electronic circuit interfacing
• General-purpose logic level translation
• Switching applications in compact surface-mount designs

Procurement Notes

Verify the specific suffix FE against official Toshiba documentation to confirm exact binning or testing variations. Ensure the LXHF designation aligns with required environmental compliance standards. Confirm the CT packaging format matches assembly line requirements before finalizing orders.

Selection Notes

Select this component when a matched NPN/PNP pair is required for complementary switching or pull-up/pull-down tasks. The integrated bias resistors simplify schematic design and reduce board space compared to discrete resistor-transistor combinations. Verify that the 22kΩ input resistance meets the driving source capabilities of the target application.

Part Context

This part belongs to the RN4903 series of digital transistors from Toshiba. The RN4903 family provides standardized pre-biased transistor arrays designed to replace multiple discrete components. The LXHF variant typically indicates specific tape-and-reel packaging configurations used for automated surface-mount technology processes.

Replacement Considerations

Direct substitutes within the same manufacturer series include RN4903,LF or RN4903,LXHF. Cross-manufacturer equivalents should be evaluated based on matching VCEO, IC limits, and package dimensions such as SOT-363.