RN2908,LXHF(CT

Overview

The RN2908,LXHF(CT is a dual PNP digital transistor array manufactured by Toshiba Semiconductor and Storage, designed for automotive applications under the AEC-Q101 qualification standard. It integrates two pre-biased PNP transistors within a compact US-6 (SOT-363) surface-mount package. The device features a collector-emitter voltage (VCEO) of -50 V and a continuous collector current (IC) of -100 mA per channel. Internal bias resistors are configured with R1 at 47 kΩ and R2 at 22 kΩ, yielding a typical resistor ratio of 2.14. Key electrical parameters include a minimum DC current gain (hFE) of 70, a maximum transition frequency ranging from 200 MHz to 250 MHz, and a power dissipation capability of 200 mW. The component supports operation up to a maximum junction temperature of +150°C.

Feature Summary

• Dual-channel PNP configuration with integrated base and emitter bias resistors for simplified circuit design.
• Automotive-grade reliability certified to AEC-Q101 standards for enhanced durability in vehicle electronics.
• Compact SMD packaging optimized for high-density PCB layouts and automated assembly processes.

Applications

• Switching circuits in automotive electronic control units (ECUs).
• Inverter driver circuits for motor control applications.
• Interface connection buffers between logic gates and load drivers.
• General-purpose switching elements in automotive sensor interfaces.

Procurement Notes

Verify the specific suffix LXHF(CT) against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure that the US-6 package dimensions match the target PCB footprint. Confirm AEC-Q101 certification requirements if the application mandates strict automotive grade compliance. Cross-reference the internal resistor values (47k/22k) with the circuit design specifications to prevent biasing errors during integration.

Selection Notes

Select this component when a dual PNP pre-biased solution is required for automotive environments. The 47kΩ/22kΩ resistor network suits applications needing moderate input impedance. Compare the 200mW power dissipation limit against thermal constraints in the final assembly. Consider the -50V rating for low-voltage automotive systems. Evaluate alternative packages if space constraints differ from the SOT-363 form factor.

Part Context

This part belongs to Toshiba's RN series of built-in bias resistor transistors, specifically tailored for automotive use. The RN29xx series typically denotes PNP configurations, while the LXHF suffix indicates automotive-grade qualification and specific packaging. It complements other variants like RN2909 or RN2906 which may offer different resistor ratios or NPN polarities within the same family.

Replacement Considerations

Direct substitutes must match the dual PNP configuration, -50V VCEO, -100mA IC, and US-6 package. Verify equivalent resistor values (R1=47kΩ, R2=22kΩ) and hFE characteristics. Check for identical AEC-Q101 certification if automotive reliability is critical. Consult distributor cross-reference lists for confirmed equivalents from other manufacturers offering compatible automotive digital transistors.