RN4987,LXHF(CT

Overview

The RN4987,LXHF(CT is a dual digital transistor from Toshiba Semiconductor and Storage, integrating one NPN and one PNP pre-biased bipolar junction transistor in a single SMD package. It features a VCEO of 50V and a continuous collector current (IC) of 100mA. The device includes internal base resistors with typical values of R1=10kΩ for the NPN and R2=47kΩ for the PNP. It operates at a maximum frequency of 200MHz/250MHz with a power dissipation of 100mW. The component is housed in an ES-6 (SOT-563) package and meets AEC-Q101 automotive qualification standards.

Feature Summary

• Integrates complementary NPN and PNP transistors with built-in biasing resistors to simplify circuit design.
• Point-symmetrical configuration allows for interchangeable placement in certain board layouts.
• Automotive-grade qualification ensures reliability under varying temperature conditions.

Applications

• Automotive logic level shifting and signal switching
• DC-DC converter driver circuits
• General-purpose digital switching applications

Procurement Notes

Verify the specific suffix LXHF(CT) against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering quantity matches the cut tape or reel specifications provided by the distributor. Cross-reference the AEC-Q101 certification requirements if the application mandates automotive grade components.

Selection Notes

Select this component when a compact solution for both sourcing and sinking currents is required. The integrated resistors reduce external component count compared to discrete BJT pairs. Verify that the 100mA current rating and 50V voltage limits align with the target load requirements. Consider the thermal performance given the 100mW power dissipation limit in the small outline package.

Part Context

This part belongs to the RN49xx series of pre-biased digital transistors. It serves as a complement to other variants like the RN4985 or RN4982, differing primarily in internal resistor ratios and package types. The series is designed to replace multiple discrete components, saving PCB space and assembly time in modern electronic designs.

Replacement Considerations

Check for direct substitutes such as the RN4987FE,LF(CT or equivalent parts from other manufacturers with identical pinouts and electrical characteristics. Ensure any replacement maintains the same NPN/PNP configuration and resistor values to guarantee functional equivalence without redesigning the surrounding circuitry.