NEXPERIA BC850B NPN General Purpose Transistor, SOT-23 - 30V
NEXPERIA BC850B NPN transistor in SOT-23 package. 45V, 100mA, 250mW, AEC-Q101 qualified for general-purpose switching & amplification.
The NEXPERIA BC850B is a robust and reliable NPN bipolar junction transistor (BJT) designed for surface-mount applications. Housed in a compact and industry-standard SOT-23 plastic package, it is an ideal component for general-purpose switching and amplification circuits. As part of NEXPERIA's high-quality semiconductor portfolio, it offers excellent performance for a wide range of electronic designs.
This transistor is characterised by its high DC current gain (hFE) and a transition frequency suitable for many low-power, high-frequency applications. Its small footprint and surface-mount design make it perfect for modern, space-constrained printed circuit boards (PCBs), allowing for efficient automated assembly and reliable connections.
Key Features & Applications
Engineered for versatility, the BC850B is a fundamental building block in electronics. It is commonly used in signal amplification stages, digital logic interfaces, and as a driver for LEDs, relays, and other low-current loads. Its qualification to the AEC-Q101 standard indicates its suitability for automotive applications, where component reliability under harsh conditions is paramount. It also finds extensive use in industrial control systems, power management modules, and consumer electronics.
Technical Overview
The device offers a balanced set of electrical parameters that ensure stable operation. With complementary PNP types available (such as the BC859 and BC860), designers can easily implement push-pull or complementary symmetry circuits. The transistor's marking code aids in accurate identification during the assembly and inspection process.
Choosing the NEXPERIA BC850B means selecting a component from a trusted manufacturer known for quality and consistency. It provides a dependable solution for engineers and hobbyists looking to implement efficient switching or linear amplification in their projects, backed by the rigue
Variant Details
- Size: 30V
- Switching applications
- Amplification applications
- Audio equipment
- Industrial systems
- Transistor Polarity: NPN
- Collector Emitter Voltage Max: 30V
- DC Collector Current: 100mA
- Continuous Collector Current: 100mA
- Power Dissipation: 250mW
- Transistor Case Style: SOT-23
- Transistor Mounting: Surface Mount
- No. of Pins: 3
- Transition Frequency: 100MHz
- DC Current Gain hFE Min: 200hFE
- DC Current Gain hFE: 200hFE
- Peak Base Current: 200mA
- Operating Temperature Max: 150°C
- Weight: 0.045 grams
- Height: 43 mm
- Width: 33 mm
- Depth: 15 mm
- of Pins: 3Pins
- SVHC: No SVHC (25-Jun-2025)
Always follow local regulations and product guidance.
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