BD234 Transistor PNP 2A 45V
7,33 EGP
High-Performance BD234 PNP Transistor for Power and Audio
The BD234 Transistor functions as a rugged PNP Silicon Epitaxial-Base Bipolar Junction Transistor (BJT) specifically designed for medium-power linear and switching applications. Housed in the industry-standard TO-126 plastic package, it is a favored choice for engineers and technicians building audio amplifier driver stages and power supply modules. It is recognized for its ability to handle significant current while maintaining a compact, space-saving profile.
Robust 2-Ampere Performance and High Power Dissipation
Specifically, the BD234 manages a continuous collector current ($I_C$) of up to 2A. This capacity allows the device to drive demanding components such as solenoid valves, DC motors, and heavy-duty relays with precision. Furthermore, the transistor handles a collector-emitter voltage ($V_{CEO}$) of up to 45V, providing a safe operating margin for 12V and 24V DC systems. Moreover, its internal architecture allows for a total power dissipation ($P_{tot}$) of up to 25W when properly mounted to a heat sink. Transitioning to the BD234 ensures your power management stages remain thermally stable and efficient under heavy-duty conditions.
Versatile TO-126 Package and Complementary Design
Additionally, the BD234 utilizes the TO-126 (SOT-32) package style. This design includes a central mounting hole, making it incredibly easy to bolt the transistor directly to a heat sink for maximum heat transfer. Specifically, the device features a high transition frequency ($f_T$) of 3 MHz, which supports clean signal reproduction in the audible range and efficient switching in low-frequency power converters.
Moreover, technicians frequently install the BD234 in the output or driver stages of high-fidelity audio amplifiers. Specifically, its DC current gain ($h_{FE}$) remains stable, ensuring linear amplification with minimal signal distortion. Furthermore, the component is the PNP complement to the BD233 NPN transistor. Using these two together allows for the creation of balanced, high-efficiency push-pull amplifier configurations. Additionally, its robust construction ensures a long operational life in both consumer electronics and industrial control hardware.
Verified Data Sheet (Technical Specifications)
| Feature | Specification |
| Transistor Polarity | PNP |
| Collector-Emitter Voltage ($V_{CEO}$) | -45V |
| Collector-Base Voltage ($V_{CBO}$) | -45V |
| Emitter-Base Voltage ($V_{EBO}$) | -5V |
| Collector Current ($I_C$) | -2.0A |
| Peak Collector Current ($I_{CM}$) | -6.0A |
| Total Power Dissipation ($P_{tot}$) | 25W (with Heat Sink) |
| DC Current Gain ($h_{FE}$) | 40 (Min) @ 150mA |
| Transition Frequency ($f_T$) | 3.0 MHz (Min) |
| Package Type | TO-126 (SOT-32) |
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