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PMBT3904,235

PMBT3904,235 Description

The PMBT3904,235 from Nexperia is a high-performance NPN bipolar junction transistor (BJT) designed for surface-mount applications in automotive and general-purpose circuits. Packaged in TO-236AB (SOT-23), it offers a compact footprint while delivering robust electrical characteristics, including a 40V collector-emitter breakdown voltage (V_CEO) and 200mA continuous collector current (I_C). With a transition frequency (f_T) of 300MHz, it excels in high-speed switching and amplification tasks. Its low V_CE(sat) of 300mV (at 5mA I_B, 50mA I_C) ensures efficient operation in low-voltage designs.

PMBT3904,235 Features

• Automotive-Grade Reliability: Compliant with stringent AEC-Q101 standards, ensuring durability in harsh environments.
• High DC Current Gain (h_FE): Minimum 100 at 10mA I_C, 1V V_CE, providing consistent amplification.
• Low Leakage Current: 50nA (I_CBO) max cutoff current enhances power efficiency.
• Wide Operating Temperature: -55°C to +150°C (T_J) range suits automotive and industrial applications.
• RoHS3 & REACH Compliant: Environmentally friendly and unrestricted for global use.
• Tape & Reel (TR) Packaging: Optimized for automated assembly processes.

PMBT3904,235 Applications

• Switching Circuits: Ideal for load switching, relay drivers, and logic level translation due to low saturation voltage.
• Amplification: Used in RF stages, audio preamps, and signal conditioning thanks to high f_T and gain linearity.
• Automotive Electronics: Suitable for ECUs, lighting control, and sensor interfaces where reliability is critical.
• Portable Devices: Efficient power management in battery-operated systems owing to low leakage.

Conclusion of PMBT3904,235

The PMBT3904,235 stands out as a versatile, high-reliability NPN transistor, combining high-speed performance, low power dissipation (250mW max), and automotive-grade ruggedness. Its small form factor, compliance with environmental regulations, and broad operational range make it a preferred choice for demanding applications in automotive, industrial, and consumer electronics. Engineers benefit from its balanced trade-off between cost, size, and performance, ensuring design flexibility across diverse use cases.