Overview
The BC549CTA is a general-purpose, low-current, and low-voltage NPN transistor manufactured by onsemi (formerly Fairchild Semiconductor). This transistor is part of the BC549 series, known for its versatility in various electronic applications. It is widely used in switching and amplification circuits due to its robust performance characteristics.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Collector-Base Voltage (VCBO) | 30 | V |
| Collector-Emitter Voltage (VCEO) | 30 | V |
| Emitter-Base Voltage (VEBO) | 5 | V |
| Continuous Collector Current (IC) | 100 | mA |
| Collector Power Dissipation (PC) | 500 | mW |
| Junction Temperature (TJ) | 150 | °C |
| Storage Temperature Range (TSTG) | -65 to +150 | °C |
| DC Current Gain (hFE) | 420 to 800 | |
| Transition Frequency (fT) | 100 | MHz |
Key Features
- General-purpose, low-current, and low-voltage NPN transistor.
- High DC current gain (hFE) ranging from 420 to 800.
- Low noise characteristics.
- Collector-Emitter voltage (VCEO) of 30 V.
- Collector-Base voltage (VCBO) of 30 V.
- Emitter-Base voltage (VEBO) of 5 V.
- Transition frequency of 100 MHz.
- Available in TO-92 and SOT54 packages.
Applications
- Switching small loads.
- Small signal amplifiers.
- Darlington pair configurations.
- LED array sequence controllers.
- Audio noise filters.
Q & A
- What is the BC549CTA transistor?
The BC549CTA is a general-purpose, low-current, and low-voltage NPN transistor manufactured by onsemi.
- What is the maximum collector current of the BC549CTA?
The maximum continuous collector current (IC) is 100 mA.
- What is the collector-emitter voltage (VCEO) of the BC549CTA?
The collector-emitter voltage (VCEO) is 30 V.
- What is the transition frequency of the BC549CTA?
The transition frequency (fT) is 100 MHz.
- In what packages is the BC549CTA available?
The BC549CTA is available in TO-92 and SOT54 packages.
- What are some common applications of the BC549CTA?
Common applications include switching small loads, small signal amplifiers, Darlington pair configurations, LED array sequence controllers, and audio noise filters.
- What is the DC current gain (hFE) range of the BC549CTA?
The DC current gain (hFE) ranges from 420 to 800.
- What is the emitter-base voltage (VEBO) of the BC549CTA?
The emitter-base voltage (VEBO) is 5 V.
- What is the junction temperature (TJ) of the BC549CTA?
The junction temperature (TJ) is 150 °C.
- What is the storage temperature range (TSTG) of the BC549CTA?
The storage temperature range (TSTG) is -65 to +150 °C.
