RN4983,LXHF(CT

Overview

The RN4983,LXHF(CT is a dual pre-biased bipolar junction transistor (BJT) array manufactured by Toshiba Semiconductor and Storage. It integrates one NPN and one PNP transistor within a single US6 surface-mount package, which corresponds to the SOT-363 form factor. The device is qualified under the AEC-Q101 automotive standard, ensuring reliability for automotive applications. Key electrical specifications include a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current (IC) of 100 mA. The unit features built-in bias resistors with typical values of R1=2.2 kΩ and R2=47 kΩ. It operates with a maximum power dissipation of 200 mW and supports transition frequencies up to 250 MHz.

Feature Summary

• Integrates complementary NPN and PNP transistors into a compact six-lead ultra-small package to minimize board space.
• Includes internal bias resistors to simplify circuit design and reduce the total component count in switching and interface applications.
• Automotive grade qualification ensures compliance with AEC-Q101 standards for durability and performance in vehicle electronics.

Applications

• Switching circuits requiring compact dual-transistor solutions
• Inverter circuits for signal inversion and logic level shifting
• Interface circuits connecting microcontrollers to peripheral devices
• Driver circuits for low-power loads in automotive systems

Procurement Notes

Verify the specific suffix LXHF(CT) against the manufacturer's latest datasheet to confirm pinout compatibility and resistor tolerances. Ensure that the US6 package dimensions align with the target PCB footprint. Confirm AEC-Q101 certification requirements if the end application mandates automotive-grade components. Check for RoHS compliance status prior to final procurement approval.

Selection Notes

Select this component when a symmetrical or asymmetrical dual-transistor configuration is required in a minimal footprint. The RN4983 offers fixed internal biasing, eliminating the need for external base resistors. Compare the 2.2 kΩ input resistance against other models like the RN4982 if higher drive currents are needed. Consider the 50 V rating and 100 mA current limit to ensure adequate headroom for the intended load conditions.

Part Context

This part belongs to the Toshiba RN49xx series of digital transistors, which are designed to replace multiple discrete components. The RN4983 specifically pairs an NPN and PNP transistor with asymmetric bias resistors (2.2 kΩ and 47 kΩ). It shares the US6/SOT-363 package with related parts such as the RN4985 and RN4982, differing primarily in internal resistor values and gain characteristics.

Replacement Considerations

The RN4985,LXHF(CT serves as a functional substitute within the same family, offering identical packaging and general electrical ratings but with different internal bias resistor values (R1=2.2 kΩ, R2=47 kΩ vs RN4983's specific configuration). Verify that the alternative part's hFE and saturation voltage meet the original design requirements before substitution.