) will lead to immediate failure or a significantly shortened lifespan. For maintenance and repair, ensure your circuit's peak voltages do not exceed these limits. 2. Electrical Characteristics
Often found in TO-92 or similar small-signal plastic packages, making it ideal for high-density PCB layouts. Collector-Base Voltage ( VCBOcap V sub cap C cap B cap O end-sub ): High enough to handle standard industrial signal rails. Collector Current ( ICcap I sub cap C
Used in line cards and signal processing units. nec b58944 datasheet
The NEC B58944 is a . It was designed primarily for high-frequency amplification and switching applications. Because it was manufactured during an era of robust analog and early digital expansion, it is known for its reliability and stable thermal characteristics. Key Specifications (Typical)
Thanks to its low-noise characteristics and PNP polarity. ) will lead to immediate failure or a
): Optimized for small-signal processing rather than power regulation. Transition Frequency ( fTf sub cap T
Ensure the Emitter-Base-Collector sequence matches your PCB. Gain ( hFEh sub cap F cap E end-sub ): Try to stay within 10% of the original NEC rating. Electrical Characteristics Often found in TO-92 or similar
The datasheet includes graphs showing the relationship between collector current and intensity. For engineers designing modifications, the graph is essential for high-frequency tuning. Common Applications The NEC B58944 was a "workhorse" component found in: