RN1307,LXHF

Overview

The RN1307,LXHF is a single NPN digital transistor from Toshiba Semiconductor and Storage, designed for automotive applications under the AEC-Q101 qualification standard. It integrates an internal biasing network within a compact USM-3 (SOT-323) surface-mount package. Key electrical parameters include a maximum collector-emitter voltage (VCEO) of 50 V and a continuous collector current (IC) of 100 mA. The device features typical internal resistors R1 and R2 both valued at 10 kOhms, resulting in a resistor ratio of 1. It offers a minimum DC current gain (hFE) of 50 and supports a maximum operating frequency of 250 MHz with a power dissipation rating of 100 mW.

Feature Summary

• Automotive-grade reliability certified to AEC-Q101 standards for robust performance in vehicle electronics.
• Integrated dual-resistor biasing network simplifies circuit design by eliminating external components.
• Compact SMD packaging enables high-density board layouts while maintaining thermal stability up to 150°C.

Applications

• Automotive logic switching and level shifting circuits
• General-purpose driver stages for low-current loads
• Signal buffering in embedded control modules

Procurement Notes

Verify the specific suffix LXHF against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Confirm that the USM-3 package variant matches your PCB footprint requirements. Ensure supply chain sources provide traceability documentation required for automotive assembly lines.

Selection Notes

Select this component when a single NPN configuration with equal base and emitter resistors is required. The 50V rating suits low-voltage automotive systems. Compare hFE minimums against load requirements. Verify that the 100mA current limit aligns with the intended switching application without exceeding thermal dissipation limits in the enclosed space.

Part Context

This part belongs to Toshiba's RN series of pre-biased transistors, which combine bipolar junction transistors with internal resistors. The LXHF suffix typically denotes lead-free composition and specific automotive qualification tiers within the broader RN family, distinguishing it from general-purpose variants like the LF series.

Replacement Considerations

Direct substitutes include other single NPN digital transistors with identical 10k/10k resistor ratios and 50V ratings in SOT-323 packages. Verify pinout alignment between Base, Emitter, and Collector terminals before substitution to prevent circuit damage.