RN4902,LF

Overview

The RN4902,LF is a dual pre-biased bipolar junction transistor array manufactured by Toshiba Semiconductor and Storage. It integrates one NPN and one PNP epitaxial transistor within a US6 surface-mount package. The device features built-in bias resistors with typical values of 10 kΩ for both the base (R1) and emitter-base (R2) connections. Key electrical specifications include a maximum collector-emitter voltage of 50V, a continuous collector current of 100mA, and a maximum power dissipation of 200mW. The DC current gain (hFE) is specified at a minimum of 50 at 10mA and 5V, while the transition frequency reaches 200MHz.

Feature Summary

• Integrates NPN and PNP transistors with built-in bias resistors to simplify circuit design
• Reduces component count and manufacturing process steps in switching and interface applications
• Utilizes an Extreme-Super-Mini US6 package for compact equipment manufacturing

Applications

• Switching circuits
• Inverter circuits
• Interface circuits

Procurement Notes

Verify the specific suffix against official Toshiba documentation to confirm package type and compliance status. Confirm availability as some variants may be discontinued or subject to long lead times. Ensure the ordering part number matches the required resistor values and package style for the target application.

Selection Notes

Select this component when a complementary NPN/PNP pair with integrated biasing is required. The 10kΩ resistor configuration suits general-purpose logic interfacing. Verify that the 50V rating and 100mA current capacity meet the load requirements. Consider the US6 package dimensions for PCB layout constraints.

Part Context

This part belongs to the RN49xx series of digital transistors from Toshiba. These devices are designed to replace discrete resistor-transistor networks. The RN4902 specifically pairs NPN and PNP types, offering a solution for push-pull or differential stage configurations in space-constrained designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Toshiba's official cross-reference tools for verified alternatives.