Description
The BC109B is a NPN bipolar transistor from STMicroelectronics, designed for general-purpose applications. It has a voltage rating of 25V and a current rating of 0.2A. The transistor is packaged in the TO18 (TO-18) package, which is a small, through-hole type package.
The BC109B has a power dissipation rating of 0.75W at 25°C, making it suitable for use in a variety of applications such as amplifiers, switches, and drivers. The transistor also has a gain of 4dB, indicating its ability to amplify signals.
Overall, the BC109B is a versatile transistor that can be used in a range of electronic circuits, including audio amplifiers, motor control circuits, and more. Its compact package and moderate power rating make it an attractive option for many applications.
Package
According to the product information, the package type of BC109B is TO18.
Pinout
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The BC109B transistor from STMicroelectronics is a NPN bipolar junction transistor (BJT). The pin count for the BC109B is typically 3 pins, with the following functions:
- Base: Input pin that controls the flow of current
- Collector: Output pin that collects the current
- Emitter: Output pin that emits the current
The BC109B has a maximum voltage rating of 25V and a maximum current rating of 0.2A. It is packaged in a TO18 (TO-18) package, which is a small, cylindrical package with a flat top and a rounded bottom.
Please note that this information is based on publicly available data and may not be exhaustive or up-to-date.
Manufacturer
The manufacturer of the BC109B is STMicroelectronics, a leading global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products, including microcontrollers, analog ICs, discrete logic, and memory devices.
Applications
The STMicroelectronics BC109B NPN transistor is suitable for general-purpose amplifier applications, such as audio amplifiers, tone controls, and switch-mode power supplies. It can also be used in digital circuits, including logic gates, flip-flops, and counters. Additionally, it may be applied in motor control circuits, relays, and other switching applications where a low-voltage, high-current device is required.
Equivalent
Based on the specifications, BC109B is an NPN transistor from STMicroelectronics. Equivalent products to BC109B include:
- 2N2222 (Fairchild)
- KBC109 (Korea Semiconductor)
- MMBT3904 (ON Semiconductor)
These transistors have similar characteristics, such as voltage and current ratings, package type, and frequency response.
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Warranty
Delivery three weeks after the end of the protection. So think.