Overview
The BC817-25LT3H is a general-purpose NPN bipolar transistor manufactured by onsemi. This transistor is designed for use in both linear and switching applications, making it versatile for a wide range of electronic circuits. It is housed in the SOT-23 (TO-236) package, which is compact and suitable for surface mount technology (SMT) assembly. The BC817-25LT3H is part of the BC817 series, known for its reliability and performance in various electronic systems.
Key Specifications
| Characteristic | Symbol | Value | Unit |
|---|---|---|---|
| Collector-Emitter Voltage | VCEO | 45 | V |
| Collector-Base Voltage | VCBO | 50 | V |
| Emitter-Base Voltage | VEBO | 5.0 | V |
| Continuous Collector Current | IC | 500 | mA |
| Base Current | IB | 50 | mA |
| DC Current Gain (hFE) | hFE | 160 - 400 | - |
| Collector-Emitter Saturation Voltage | VCE(sat) | 0.7 | V |
| Base-Emitter On Voltage | VBE(on) | 1.2 | V |
| Transition Frequency | fT | 100 | MHz |
| Maximum Power Dissipation | PD | 300 | mW |
| Operating Junction Temperature | TJ | -55 to +150 | °C |
Key Features
- Pb-Free, Halogen Free/BFR Free and RoHS Compliant: Ensures environmental compliance and safety.
- High DC Current Gain (hFE): Ranges from 160 to 400, making it suitable for amplification and switching applications.
- Low Collector-Emitter Saturation Voltage (VCE(sat)): 0.7 V, which is beneficial for reducing power losses in switching circuits.
- High Transition Frequency (fT): 100 MHz, suitable for high-frequency applications.
- Compact SOT-23 Package: Ideal for surface mount technology and space-constrained designs.
- AEC-Q101 Qualified and PPAP Capable: Suitable for automotive and other applications requiring unique site and control change requirements.
Applications
- LED Dimmers or Flashers: Can be used to control LED brightness and flashing patterns.
- Switching Applications: Suitable for high-frequency switching due to its low VCE(sat) and high transition frequency.
- Preamplifier for Power Amplifier: Can be used as a preamplifier stage in audio or other signal amplification circuits.
- High Frequency Switching: Ideal for applications requiring fast switching times and high frequency operation.
- Modulator and Demodulator for RF Frequency: Can be used in RF circuits for modulation and demodulation purposes.
Q & A
- What is the maximum collector-emitter voltage (VCEO) of the BC817-25LT3H transistor?
The maximum collector-emitter voltage (VCEO) is 45 V.
- What is the continuous collector current (IC) rating of the BC817-25LT3H transistor?
The continuous collector current (IC) is 500 mA.
- What is the DC current gain (hFE) range of the BC817-25LT3H transistor?
The DC current gain (hFE) ranges from 160 to 400.
- What is the transition frequency (fT) of the BC817-25LT3H transistor?
The transition frequency (fT) is 100 MHz.
- What is the maximum power dissipation (PD) of the BC817-25LT3H transistor?
The maximum power dissipation (PD) is 300 mW.
- What is the operating junction temperature range of the BC817-25LT3H transistor?
The operating junction temperature range is -55 to +150 °C.
- Is the BC817-25LT3H transistor RoHS compliant?
Yes, the BC817-25LT3H transistor is Pb-Free, Halogen Free/BFR Free and RoHS compliant.
- What package type is the BC817-25LT3H transistor available in?
The BC817-25LT3H transistor is available in the SOT-23 (TO-236) package.
- What are some common applications of the BC817-25LT3H transistor?
Common applications include LED dimmers, switching circuits, preamplifiers, high-frequency switching, and RF modulators and demodulators.
- Is the BC817-25LT3H transistor suitable for automotive applications?
Yes, it is AEC-Q101 qualified and PPAP capable, making it suitable for automotive and other applications requiring unique site and control change requirements.
