RN1101,LXHF(CT

Overview

The RN1101,LXHF(CT is a single NPN pre-biased digital transistor manufactured by Toshiba Semiconductor and Storage. It integrates an NPN bipolar junction transistor with internal biasing resistors in a compact SSM-3 (SOT-416) surface-mount package. The device features a collector-emitter maximum voltage of 50 V and a continuous collector current rating of 100 mA. Internal resistor values include a base series resistor of 4.7 kΩ and a base-emitter resistor of 4.7 kΩ, yielding a typical resistance ratio of 1.0. It supports a maximum operating frequency of 250 MHz and has a power dissipation capacity of 100 mW. The component is AEC-Q qualified for automotive applications.

Feature Summary

• Integrates NPN transistor with dual biasing resistors to simplify circuit design
• AEC-Q qualified for reliable operation in automotive environments
• High-speed switching capability with 250 MHz maximum operating frequency
• Compact SSM-3 surface-mount package for space-constrained layouts

Applications

• Automotive electronic control unit input/output interfacing
• General-purpose logic level shifting and switching
• Driver circuits for low-power loads in consumer electronics

Procurement Notes

Verify the specific suffix LXHF(CT against the manufacturer's official datasheet to confirm the exact resistor values and packaging configuration. Ensure that the AEC-Q qualification status aligns with your specific application requirements. Cross-reference the part number with authorized distributors to confirm authenticity and availability. Check for any recent updates to the RoHS compliance status or manufacturing location before finalizing procurement orders.

Selection Notes

Select this component when a single NPN digital transistor with equal base series and base-emitter resistors is required. The 4.7 kΩ resistor values provide balanced drive characteristics suitable for standard logic interfaces. Consider the 50 V voltage rating and 100 mA current limit to ensure adequate headroom for the target load. The SSM-3 package is appropriate for high-density PCB designs where space is limited compared to through-hole alternatives.

Part Context

This part belongs to the RN110x series of pre-biased transistors from Toshiba. These devices are designed to replace discrete resistor-transistor combinations, reducing board space and assembly costs. The RN1101 variant specifically uses identical 4.7 kΩ resistors for both base series and base-emitter paths. This configuration offers symmetrical biasing properties distinct from other series members like the RN1104 or RN1105 which feature different resistance ratios.

Replacement Considerations

• RN1101,T5L(F,T)

FAQ

What is the function of the internal resistors in the RN1101?

The internal resistors serve as a base series resistor (4.7 kΩ) and a base-emitter resistor (4.7 kΩ). They provide necessary biasing for the NPN transistor, allowing it to switch on and off reliably when driven by a logic signal without requiring external components.

Is the RN1101,LXHF(CT suitable for automotive applications?

Yes, the component is explicitly listed as AEC-Q qualified, indicating it meets the reliability standards required for automotive electronic systems.