BC414 Transistor NPN 45V 100mA
6,66 EGP
High-Precision BC414 Transistor for Ultra-Low Noise Audio
The BC414 Transistor functions as a premium NPN silicon epitaxial planar semiconductor, specifically engineered for applications requiring the absolute minimum background noise. It is widely regarded as one of the best small-signal transistors for high-fidelity audio pre-amplifiers and sensitive instrumentation. Engineers consistently select this component for its exceptional gain linearity and its ability to process weak signals without adding audible hiss.
Superior Signal Clarity and Voltage Margin
Specifically, the BC414 excels in the input stages of professional audio gear because it offers an ultra-low noise figure (typically around 1.2 dB). Consequently, the transistor maintains high signal integrity in high-end record player pre-amps (RIAA stages) and professional microphone inputs. Furthermore, the device handles a collector-emitter voltage ($V_{CEO}$) of up to 45V. This rating provides significant electrical headroom for high-voltage analog rails, ensuring a wide dynamic range. Moreover, its 100mA (0.1A) collector current capability supports precise signal modulation without thermal fluctuation. Transitioning to this transistor ensures that your high-end audio designs achieve professional-grade clarity.
Precision Gain and Circuit Integration
Additionally, the BC414 utilizes the industry-standard TO-92 package style. This compact footprint allows for high-density placement on modern printed circuit boards (PCBs). Specifically, the high DC current gain ($h_{FE}$) is categorized into groups (like BC414B or BC414C), allowing you to select the exact amplification factor required for your circuit. Consequently, it is a favorite for precision constant-current sources and sensitive sensor interfaces.
Moreover, technicians frequently install the BC414 in laboratory-grade measurement equipment. Specifically, its stable internal capacitance ensures that frequency response remains flat across the entire audio spectrum. Furthermore, because it features NPN polarity, it integrates seamlessly into standard ground-referenced designs. Additionally, the component is the NPN complement to the BC416 PNP transistor. Using these two together allows for the creation of perfectly balanced, low-noise complementary input stages.
Verified Data Sheet (Technical Specifications)
| Feature | Specification |
| Transistor Polarity | NPN |
| Collector-Emitter Voltage ($V_{CEO}$) | 45V |
| Collector-Base Voltage ($V_{CBO}$) | 50V |
| Emitter-Base Voltage ($V_{EBO}$) | 5V |
| Collector Current ($I_C$) | 100mA (0.1A) |
| Total Power Dissipation ($P_{tot}$) | 300mW |
| DC Current Gain ($h_{FE}$) | 120 to 800 (Variant Dependent) |
| Transition Frequency ($f_T$) | 150 MHz to 250 MHz |
| Noise Figure (NF) | 1.2 dB (Typical) |
| Package Type | TO-92 |
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