Overview
The BC817-40W 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 space-constrained applications. It is designed for general-purpose switching and amplification and is part of Nexperia’s extensive portfolio of bipolar transistors.
The BC817-40W offers high current handling and three current gain selections, making it versatile for various electronic designs. It is also qualified for use in automotive applications, adhering to the AEC-Q101 standard, and is suitable for a wide range of industries including automotive, industrial, power, computing, consumer, mobile, and wearables.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT323 (SC70) |
| Channel Type | NPN |
| Maximum Collector-Emitter Voltage (VCEO) | 45 V |
| Maximum Collector Current (IC) | 500 mA |
| Minimum DC Current Gain (hFE) | 250 |
| Maximum DC Current Gain (hFE) | 600 |
| Maximum Junction Temperature (TJ) | 150°C |
| Transition Frequency (fT) | 100 MHz |
| Power Dissipation (Ptot) | 200 mW |
Key Features
- High Current Handling: The BC817-40W can handle up to 500 mA of collector current, making it suitable for high-current applications.
- Three Current Gain Selections: This transistor is available with different current gain options, providing flexibility in design.
- Small Package Size: The SOT323 (SC70) package is very compact, ideal for space-constrained designs.
- AEC-Q101 Qualified: Suitable for automotive applications, adhering to the AEC-Q101 standard for reliability and performance.
- General-Purpose Switching and Amplification: Versatile for use in both switching and amplification circuits.
Applications
The BC817-40W transistor is widely used across various industries due to its versatility and reliability. Some key application areas include:
- Automotive: Qualified according to AEC-Q101, it is suitable for automotive systems requiring high reliability.
- Industrial: Used in industrial control systems, power supplies, and other high-current applications.
- Consumer Electronics: Found in mobile devices, wearables, and other consumer electronics where space and efficiency are critical.
- Power and Computing: Used in power management circuits and computing hardware for its high current handling and switching capabilities.
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 maximum collector current of the BC817-40W transistor?
The maximum collector current (IC) is 500 mA.
- What package type is the BC817-40W transistor available in?
The BC817-40W transistor is available in the SOT323 (SC70) package.
- Is the BC817-40W transistor qualified for automotive applications?
- What are the minimum and maximum DC current gain values for the BC817-40W transistor?
The minimum DC current gain (hFE) is 250, and the maximum is 600.
- What is the maximum junction temperature of the BC817-40W transistor?
The maximum junction temperature (TJ) is 150°C.
- What is the transition frequency of the BC817-40W transistor?
The transition frequency (fT) is 100 MHz.
- What is the power dissipation of the BC817-40W transistor?
The power dissipation (Ptot) is 200 mW.
- Can the BC817-40W transistor be used for both switching and amplification?
- Where can I find more detailed technical information about the BC817-40W transistor?
You can find detailed technical information in the datasheet available on Nexperia’s official website or through authorized distributors.
