RN2307,LXHF

Overview

The RN2307,LXHF is a PNP pre-biased bipolar transistor (BRT) from Toshiba Semiconductor and Storage, designed for automotive applications under the AEC-Q qualification standard. It integrates a single PNP transistor with an internal base resistor network in a compact SC-70 (SOT-323) surface-mount package. Key electrical specifications include a maximum collector-emitter voltage (Vceo) of -50 V, a continuous collector current (Ic) of -100 mA, and a power dissipation (Pd) of 100 mW. The device features a typical base series resistance (Q1bsr) of 10 kΩ and a base-emitter resistance (Q1ber) of 47 kΩ, resulting in a typical resistor ratio of 0.213. It supports a maximum operating frequency of 200 MHz and offers a minimum DC current gain (hfe) of 70 at Ic = -10 mA and Vce = -5 V.

Feature Summary

• Automotive-grade reliability certified to AEC-Q standards for enhanced durability in vehicle electronics.
• Integrated dual-resistor network simplifies circuit design by eliminating external biasing components.
• Point-symmetrical pin configuration facilitates automated assembly and reduces placement errors.
• Compact SC-70 packaging enables high-density mounting on space-constrained printed circuit boards.

Applications

• Switching circuits requiring fast response times in automotive control modules.
• Inverter circuits for signal level translation and logic interface applications.
• Driver circuits for low-power loads such as LEDs or relay coils in vehicle systems.
• Interface circuits connecting microcontrollers to peripheral devices with current sinking requirements.

Procurement Notes

Verify that the specific suffix LXHF corresponds to the required tape-and-reel packaging format for automated surface-mount assembly. Confirm AEC-Q automotive qualification status if the end application mandates compliance with automotive reliability standards. Ensure the SC-70 footprint matches the target PCB layout dimensions. Cross-reference the internal resistor values (10 kΩ/47 kΩ) with the schematic requirements to guarantee correct biasing conditions. Validate thermal management capabilities given the 100 mW power dissipation limit in the final enclosure.

Selection Notes

Select this component when a PNP pre-biased transistor with integrated resistors is needed for automotive-grade switching or driving applications. The 10 kΩ base series resistor provides appropriate input impedance for standard logic interfaces. The -50 V rating suits low-voltage automotive systems. Consider the SC-70 package size for space-sensitive designs. Compare against similar RN-series parts if different resistor ratios or NPN polarity are required. Ensure the 200 MHz frequency capability meets the signal speed requirements of the target circuit.

Part Context

The RN2307,LXHF belongs to Toshiba’s RN series of pre-biased transistors, which integrate bipolar junction transistors with built-in bias resistors to simplify circuit design. This specific model is part of the automotive-grade lineup, distinguished by its AEC-Q certification and robust performance under varying temperature conditions. It complements other variants in the series that offer different resistor configurations or transistor polarities, providing designers with flexible options for interface and driver applications in modern electronic systems.

Replacement Considerations

Direct substitutes within the same family include RN2309,LXHF (with different resistor values: 47 kΩ/22 kΩ) and RN2303,LXHF (NPN polarity). For identical electrical characteristics but different packaging, verify availability of equivalent SC-70 devices from other manufacturers meeting AEC-Q standards. Ensure any replacement maintains the same pinout compatibility and thermal performance limits.