BD235 Transistor NPN 2A 60V
21,97 EGP
High-Performance BD235 NPN Transistor for Power and Audio
The BD235 Transistor functions as a rugged NPN Silicon Epitaxial-Base Bipolar Junction Transistor (BJT) specifically designed for medium-power linear and switching applications. As a middle-tier member of the BD23x family, it offers a higher voltage threshold than the BD233 while maintaining the same robust current capacity. It is a preferred choice for engineers building high-fidelity audio driver stages and precision motor control modules.
Robust 2-Ampere Performance and Voltage Headroom
Specifically, the BD235 manages a continuous collector current ($I_C$) of up to 2A, with a peak capacity of 6A for short pulses. This impressive rating allows the device to drive demanding loads such as solenoid valves, DC motors, and heavy-duty relays. Furthermore, the transistor handles a collector-emitter voltage ($V_{CEO}$) of up to 60V. Consequently, the unit provides a significant safety margin for 12V, 24V, and 36V DC systems, protecting the semiconductor from transient voltage spikes. Moreover, its low saturation voltage ensures high energy efficiency by minimizing heat generation during full conduction. Transitioning to the BD235 ensures your power management circuit remains thermally stable even under heavy-duty loads.
Versatile TO-126 Package and Complementary Design
Additionally, the BD235 utilizes the industry-standard TO-126 (SOT-32) package style. This design includes a central mounting hole, allowing the transistor to be bolted directly to a heat sink for maximum thermal dissipation. Specifically, while the device handles 1.25W in free air, it can dissipate up to 25W when properly heat-sinked.
Moreover, technicians frequently install the BD235 in the driver stages of high-fidelity audio amplifiers. Specifically, its DC current gain ($h_{FE}$) remains linear across a wide current range, ensuring clear signal reproduction with minimal harmonic distortion. Furthermore, the component is the NPN complement to the BD236 PNP transistor. Using these two together allows for the creation of balanced push-pull amplifier configurations or high-efficiency motor controllers. Additionally, its robust construction ensures a long operational life in both consumer electronics and industrial automation.
Verified Data Sheet (Technical Specifications)
| Feature | Specification |
| Transistor Polarity | NPN |
| Collector-Emitter Voltage ($V_{CEO}$) | 60V |
| Collector-Base Voltage ($V_{CBO}$) | 60V |
| 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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