RN4909,LXHF(CT

Overview

The RN4909,LXHF(CT is a digital transistor array manufactured by Toshiba Semiconductor and Storage, featuring one NPN and one PNP pre-biased transistor within a US6 surface-mount package. It operates with a maximum collector-emitter voltage of -50V and a continuous collector current of 100mA. The device includes integrated base resistors of 4.7kΩ for both transistors, ensuring a typical resistance ratio of 1. Key electrical characteristics include a minimum DC current gain (hFE) of 30 at 10mA and 5V, a maximum saturation voltage of 300mV at specific test conditions, and transition frequencies of 200MHz and 250MHz. Power dissipation is rated at 200mW.

Feature Summary

• Integrated dual pre-biased configuration combining one NPN and one PNP transistor in a single compact package to reduce component count and PCB area.
• Built-in base resistors eliminate the need for external biasing components, simplifying circuit design and improving switching speed consistency.
• Automotive-grade qualification ensures reliability and performance stability under varying temperature conditions for automotive applications.

Applications

• Automotive electronic systems requiring reliable signal switching and level translation.
• General-purpose logic interface circuits for microcontroller I/O expansion.
• Driver stages for low-power relays or LED indicators in consumer electronics.

Procurement Notes

Verify the exact ordering suffix against the manufacturer's latest datasheet to ensure correct packaging and tape-and-reel specifications. Confirm RoHS compliance status and AEC-Q101 certification requirements for your specific application environment before finalizing procurement orders.

Selection Notes

Select this component when a matched NPN/PNP pair with identical biasing characteristics is required for push-pull or complementary switching applications. Ensure the 4.7kΩ internal base resistance aligns with the driving source impedance and desired input current levels for the target logic family.

Part Context

This part belongs to the RN49xx series of digital transistors from Toshiba, designed for high-density mounting and simplified biasing networks. The LXHF(CT) suffix indicates specific packaging and taping configurations suitable for automated surface-mount assembly processes.

Replacement Considerations

Direct substitutes may include other Toshiba parts within the same RN49xx family with matching resistor values, such as RN4901,LXHF(CT, provided the pinout and electrical parameters remain compatible with the existing design constraints.