BC850BW

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BC850BW

+BOM

TRANS NPN 45V 0.1A SOT-323

  • ManufacturerTaiwan Semiconductor Corporation

  • Mfr. Part #BC850BW

  • Datasheet BC850BW DataSheet

  • In Stock24513

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Specifications

Attribute Value
Part Status Active
Transistor Type NPN
Current - Collector (Ic) (Max) 100 mA
Voltage - Collector Emitter Breakdown (Max) 45 V
Vce Saturation (Max) @ Ib, Ic 600mV @ 5mA, 100mA
Current - Collector Cutoff (Max) 15nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce 200 @ 2mA, 5V
Power - Max 200 mW
Frequency - Transition 100MHz
Operating Temperature -55°C ~ 150°C (TJ)
Mounting Type Surface Mount
Package / Case SC-70, SOT-323
Supplier Device Package SOT-323
Base Product Number BC850

Overview

Description

The BC850BW is a general-purpose NPN bipolar junction transistor (BJT) in a SOT-323 surface-mount package. Key features include:
- Low voltage, low current operation (max. 45V, 100mA).
- High current gain (hFE) of 200–450 at 2mA.
- Low noise, suitable for small-signal amplification in audio/RF circuits.
- Complementary pair available with PNP BC860BW.
Common applications include amplification, switching, and signal processing in portable electronics. Its compact size makes it ideal for space-constrained designs.
For detailed specs, refer to the datasheet.

Equivalent

The BC850BW is a general-purpose NPN transistor. Equivalent alternatives include:
- BC847BW (similar specs, lower current)
- 2N3904 (common NPN, higher power)
- MMBT3904 (SMD version of 2N3904)
- BC546B (higher voltage rating)
- KSC1845FTA (low noise, high gain)
Check datasheets for exact parameter matching in your application.

Pinout

The BC850BW is a SOT-323 packaged NPN general-purpose transistor with 3 pins:
1. Emitter (E) – Output for current flow.
2. Base (B) – Controls transistor switching/amplification.
3. Collector (C) – Main current input.
Key functions:
- Amplification of small signals.
- Switching (on/off control in circuits).
- Low-power applications (max 250mA collector current).
Compact and surface-mountable, it's commonly used in portable electronics.

Manufacturer

The BC850BW is a general-purpose NPN transistor manufactured by Nexperia, a leading semiconductor company specializing in high-volume production of discrete, logic, and MOSFET devices. Nexperia was originally part of NXP Semiconductors before becoming an independent company in 2017.
Headquartered in Nijmegen, Netherlands, Nexperia focuses on reliable, efficient components for automotive, industrial, and consumer electronics. The BC850BW is part of their extensive portfolio of small-signal transistors, commonly used in amplification and switching applications.
Nexperia is known for its robust, high-quality products and serves global markets with a strong emphasis on innovation and sustainability.

Application

The BC850BW is a general-purpose NPN transistor commonly used in:
1. Amplification – Small-signal amplification in audio and RF circuits.
2. Switching – Low-power switching in digital and control circuits.
3. Signal Processing – Buffering, oscillation, and waveform shaping.
4. Consumer Electronics – Found in devices like remote controls, sensors, and LED drivers.
5. Automotive & Industrial – Used in control modules and low-power applications.
Its low noise, high gain, and compact SOT-23 package make it suitable for space-constrained designs.

Package

The BC850BW is a NPN bipolar transistor available in a SOT-323 surface-mount package (SC-70). It is compact, with three leads, and designed for low-power, high-frequency applications. The package dimensions are approximately 2.0 x 1.25 x 0.9 mm.

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