RN2903FE,LXHF(CT

Overview

The RN2903FE,LXHF(CT is a PNP digital transistor from Toshiba Semiconductor and Storage, designed for automotive applications with AEC-Q101 qualification. It integrates a single PNP transistor with built-in bias resistors in an ES6 (SOT-457) surface-mount package. Key electrical parameters include a collector-emitter voltage (VCEO) of -50 V, a continuous collector current (IC) of -100 mA, and a power dissipation (Pd) of 150 mW. The typical base resistor (R1) is 4.7 kΩ, while the typical emitter resistor (R2) is 47 kΩ. The device features a minimum DC current gain (hFE) of 70 at IC = -10 mA and VCE = -5 V, with a maximum operating temperature of +150°C.

Feature Summary

• Integrated dual-resistor network simplifies circuit design by eliminating external bias components.
• Automotive-grade reliability certified under AEC-Q101 standards for harsh environment operation.
• High-speed switching capability optimized for interface and driver circuits.

Applications

• Switching circuits in automotive electronic control units
• Inverter circuit interfaces
• Driver circuits for low-power loads

Procurement Notes

Verify the specific suffix FE against official Toshiba documentation to confirm the exact resistance values and package type, as suffixes denote manufacturing variations. Ensure the component meets AEC-Q101 requirements for the target automotive application. Cross-reference the part number with authorized distributors to confirm availability and authenticity, avoiding unauthorized sources that may supply counterfeit or obsolete inventory.

Selection Notes

Select this component when a PNP digital transistor with a 4.7 kΩ base resistor and 47 kΩ emitter resistor is required in an SOT-457 package. Compare hFE and switching speed specifications against alternative models if higher gain or faster response is needed. Consider the 150 mW power dissipation limit and thermal management requirements for the specific PCB layout and ambient temperature conditions.

Part Context

This part belongs to Toshiba's RN series of pre-biased transistors, which combine bipolar junction transistors with internal bias resistors. The RN2903 variant specifically provides a PNP configuration with asymmetric resistor ratios, distinguishing it from symmetric variants like the RN2901 or other ratio configurations within the same family.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with direct replacements only through official Toshiba cross-reference documents or equivalent manufacturer datasheets confirming identical pinout, electrical ratings, and package dimensions.