Overview
The BC817-40W-7 is a general-purpose NPN small signal transistor produced by Diodes Incorporated. It is housed in the SOT323 (SC-70) surface-mount package, making it suitable for a wide range of applications where compact size and high reliability are essential. This transistor is part of the BC817 series, known for its epitaxial planar die construction and lead-free, halogen-free, and RoHS-compliant design.
Key Specifications
| Parameter | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Emitter Voltage | VCEO | 45 | V |
| Collector-Base Voltage | VCBO | 50 | V |
| Emitter-Base Voltage | VEBO | 5.0 | V |
| Maximum Collector Current | Ic max | 0.5 | A |
| Maximum Power Dissipation | Pc | 200 | mW |
| Operating Junction Temperature | Tj | -65°C to 150°C | °C |
| DC Current Gain (hFE) | hFE | 250 - 600 | - |
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.7 | V |
| Gain Bandwidth Product | fT | 100 | MHz |
| Collector-Base Capacitance | Cobo | 12 | pF |
| Package | - | SOT323 (SC-70) | - |
Key Features
- Ideally suited for automatic insertion due to its small SOT323 package.
- Epitaxial planar die construction for high reliability and performance.
- Complementary PNP types available (BC807-xxW series).
- Totally lead-free, halogen-free, and RoHS compliant, making it environmentally friendly.
- AEC-Q101 qualified and PPAP capable, suitable for automotive and other high-reliability applications.
- UL flammability classification rating 94V-0 and moisture sensitivity level 1 per J-STD-020.
Applications
- Switching applications: The BC817-40W is well-suited for switching circuits due to its high current gain and low saturation voltage.
- Audio Frequency (AF) Amplifier Applications: Its high gain-bandwidth product makes it suitable for audio frequency amplification.
- Automotive Applications: Qualified to AEC-Q101 standards, it is reliable for use in automotive systems.
- General Purpose Amplification: Can be used in various general-purpose amplification circuits where a small, reliable transistor is required.
Q & A
- What is the maximum collector-emitter voltage of the BC817-40W transistor?
The maximum collector-emitter voltage (VCEO) is 45V.
- What is the maximum collector current of the BC817-40W transistor?
The maximum collector current (Ic max) is 0.5 A.
- What is the package type of the BC817-40W transistor?
The transistor is housed in the SOT323 (SC-70) surface-mount package.
- Is the BC817-40W transistor RoHS compliant?
Yes, the BC817-40W transistor is lead-free, halogen-free, and RoHS compliant.
- What are the typical applications of the BC817-40W transistor?
It is typically used in switching applications, audio frequency amplifiers, automotive systems, and general-purpose amplification circuits.
- What is the gain-bandwidth product of the BC817-40W transistor?
The gain-bandwidth product (fT) is 100 MHz.
- What is the collector-emitter saturation voltage of the BC817-40W transistor?
The collector-emitter saturation voltage (VCE(sat)) is 0.7 V.
- Is the BC817-40W transistor AEC-Q101 qualified?
Yes, the BC817-40W transistor is AEC-Q101 qualified and PPAP capable.
- What is the operating junction temperature range of the BC817-40W transistor?
The operating junction temperature range is -65°C to 150°C.
- What is the moisture sensitivity level of the BC817-40W transistor?
The moisture sensitivity level is 1 per J-STD-020.
