Overview
The BC817-40W,135 is an NPN general-purpose transistor manufactured by Nexperia USA Inc. This transistor is housed in a very small SOT323 (SC70) Surface-Mounted Device (SMD) plastic package, making it ideal for compact electronic designs. It is part of the BC817 series, known for its high current handling and versatility in various applications.
The BC817-40W is designed for general-purpose switching and amplification, offering a maximum collector-emitter voltage of 45 V and a continuous collector current of 500 mA. This transistor is also automotive qualified, ensuring reliability and performance in demanding environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Type Number | BC817-40W | - |
| Package | SOT323 (SC70) | - |
| Collector-Base Voltage (VCEO) | 45 | V |
| Continuous Collector Current (IC) | 500 | mA |
| DC Current Gain (hFE) | 250 - 600 | - |
| Transition Frequency (fT) | 100 | MHz |
| Maximum Junction Temperature (TJ) | 150 | °C |
| Power Dissipation (Ptot) | 200 | mW |
| RoHS Status | ROHS3 Compliant | - |
| Lead Free | Yes | - |
Key Features
- High Current Handling: The BC817-40W can handle a continuous collector current of 500 mA, making it suitable for applications requiring moderate to high current levels.
- Compact Package: The SOT323 (SC70) package is very small, allowing for space-efficient designs in modern electronics.
- Automotive Qualified: This transistor meets automotive standards, ensuring reliability and performance in automotive and other demanding environments.
- Multiple Current Gain Selections: The BC817 series offers different current gain selections, providing flexibility in design choices.
- General-Purpose Switching and Amplification: Suitable for both switching and amplification applications due to its robust specifications.
Applications
The BC817-40W transistor is versatile and can be used in a variety of applications, including:
- Automotive Systems: Due to its automotive qualification, it is suitable for use in vehicle electronics such as sensors, actuators, and control systems.
- Industrial Control Systems: It can be used in industrial automation, motor control, and other industrial applications requiring reliable switching and amplification.
- Consumer Electronics: Found in various consumer devices such as audio equipment, power supplies, and other electronic gadgets.
- Power and Computing Systems: Used in power management circuits, computing peripherals, and other high-reliability electronic systems.
Q & A
- What is the maximum collector-emitter voltage of the BC817-40W transistor?
The maximum collector-emitter voltage (VCEO) is 45 V.
- What is the continuous collector current rating of the BC817-40W?
The continuous collector current (IC) is 500 mA.
- What package type does the BC817-40W come in?
The BC817-40W comes in a SOT323 (SC70) Surface-Mounted Device (SMD) plastic package.
- Is the BC817-40W transistor automotive qualified?
Yes, the BC817-40W is automotive qualified, meeting AEC-Q101 standards.
- What is the transition frequency (fT) of the BC817-40W transistor?
The transition frequency (fT) is 100 MHz.
- What is the maximum junction temperature (TJ) for the BC817-40W?
The maximum junction temperature (TJ) is 150°C.
- Is the BC817-40W RoHS compliant?
Yes, the BC817-40W is ROHS3 compliant and lead-free.
- What are the typical applications of the BC817-40W transistor?
It is used in automotive systems, industrial control systems, consumer electronics, and power and computing systems.
- What is the power dissipation (Ptot) of the BC817-40W transistor?
The power dissipation (Ptot) is 200 mW.
- Can the BC817-40W be used for both switching and amplification?
Yes, the BC817-40W is suitable for both switching and amplification applications.
