Overview
The BC80740MTF is a general-purpose PNP bipolar junction transistor (BJT) manufactured by Fairchild Semiconductor. It is designed for low current and low power applications, making it suitable for a wide range of amplification and switching circuits. This transistor is housed in a compact SOT-23 package, which offers high power dissipation and low collector-emitter saturation voltage for efficient performance.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Collector-Emitter Breakdown Voltage (BVCEO) | - | - | -45 | V |
| Collector-Emitter Breakdown Voltage (BVCES) | - | - | -50 | V |
| Emitter-Base Breakdown Voltage (BVEBO) | - | - | -5 | V |
| Collector Cut-Off Current (ICES) | - | - | 100 nA | |
| Emitter Cut-Off Current (IEBO) | - | - | 100 nA | |
| DC Current Gain (hFE1) | 100 | - | 630 | |
| Collector-Emitter Saturation Voltage (VCE(sat)) | - | - | 0.7 | V |
| Base-Emitter On Voltage (VBE(on)) | - | - | 1.2 | V |
| Current Gain Bandwidth Product (fT) | - | - | 100 MHz | |
| Output Capacitance (Cob) | - | - | 12 pF | |
| Package | - | - | SOT-23 |
Key Features
- High Power Dissipation: Capable of handling high power levels for various applications.
- Low Saturation Voltage: Low collector-emitter saturation voltage for efficient switching.
- SOT-23 Package: Compact SOT-23 package for easy circuit integration.
- General-Purpose: Versatile transistor suitable for amplification and switching tasks.
Applications
- Amplification: Used for signal amplification in audio and sensor circuits.
- Switching: Suitable for low to moderate power switching applications.
- Driver Circuits: Ideal for driving various loads in electronic circuits.
- Audio Amplifiers and Sensor Interfaces: Commonly used in audio amplifiers, sensor interfaces, and low-power switching circuits.
Q & A
- Q: What is the BC80740MTF?
A: The BC80740MTF is a general-purpose PNP bipolar junction transistor (BJT) designed for low current and low power applications. - Q: How does the BC80740MTF work?
A: The BC80740MTF operates as a PNP transistor, allowing current to flow from emitter to collector when a small current is applied to the base. - Q: How many pins does the BC80740MTF have and what are their functions?
A: The BC80740MTF has 3 pins: Emitter (E), Base (B), and Collector (C). - Q: What are the pros and cons of the BC80740MTF?
A: Pros include low power, compact package, general-purpose versatility, and cost-effectiveness. Cons include low current and power handling, limited frequency response, and temperature sensitivity. - Q: Are there any equivalents or alternatives to the BC80740MTF?
A: Alternatives include the 2N3906 from Fairchild Semiconductor and the BC558 from ON Semiconductor. - Q: What is the maximum power dissipation of the BC80740MTF?
A: The maximum power dissipation is specified in the datasheet; ensure proper heat sinking for high-power applications. - Q: Is the BC80740MTF suitable for audio amplifier applications?
A: Yes, it is commonly used in audio amplifier circuits for signal amplification. - Q: How do I connect the BC80740MTF in my circuit?
A: Connect the emitter, base, and collector pins according to the application requirements. Ensure proper biasing and signal levels for optimal performance. - Q: What is the thermal resistance of the BC80740MTF?
A: The thermal resistance, junction-to-ambient (RθJA), is 403 °C/W. - Q: What is the current gain bandwidth product (fT) of the BC80740MTF?
A: The current gain bandwidth product (fT) is 100 MHz.
