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BC857CW

Part No BC857CW
Manufacturer Siemens
Catalog Transistors (BJT) - Single
Description Trans GP BJT PNP 45V 0.1A 250mW Automotive 3-Pin SOT-323 T/R / PNP Silicon AF Transistors (For AF input stages and driver applications High current gain Low collector-emitter saturation voltage)
Sample
Rohs State rohs
ECAD Module
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Manufacturer Siemens
Win Source Part Number 1152149-BC857CW
Manufacturer Homepage www.siemens.com/
Is this a common-used part? Yes
Popularity High
Supply and Demand Status Sufficient
Family Name BC857CW
Introduction Date April 27, 2007
ECCN EAR99
Country of Origin Malaysia, Republic of Korea
Halogen Free Compliant
Estimated EOL Date 2022
Package Tape & Reel (TR);Cut Tape (CT)
Product Status Active
Transistor Type PNP
Current - Collector (Ic) (Max) 100mA
Voltage - Collector Emitter Breakdown (Max) 45V
Vce Saturation (Max) @ Ib, Ic 650mV @ 5mA, 100mA
Current - Collector Cutoff (Max) 15nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce 420 @ 2mA, 5V
Power - Max 200mW
Frequency - Transition 100MHz
Operating Temperature -55°C ~ 150°C (TJ)
Grade -
Mounting Type Surface Mount
Package / Case SC-70, SOT-323
Supplier Device Package SOT-323
Ultra Librarian 3D Model Ultra Librarian BC857CW CAD Model

Description

The Siemens (now Infineon or another manufacturer, depending on the date of production) BC857CW is a PNP silicon bipolar junction transistor (BJT) designed for general-purpose switching and amplification applications. It's commonly used in low-power circuits where a PNP transistor is required. The 'CW' suffix often indicates a specific gain grouping or packaging.

Applications

  • General-purpose switching
  • Amplification
  • Driver circuits
  • Level shifting
  • Small signal amplification

Features

  • PNP polarity
  • Low collector-emitter saturation voltage
  • High current gain (hFE)
  • Small signal amplification capability
  • Surface mount package

Benefits

  • Provides reliable switching performance
  • Offers efficient amplification
  • Simplifies circuit design
  • Reduces component count

Technical Specifications

The BC857CW is a PNP transistor with a collector-emitter voltage (VCEO) typically around -45V. The collector current (IC) is generally rated for around -100mA to -200mA. The DC current gain (hFE) is a critical parameter and varies depending on the gain group (indicated by the suffix, if applicable); a typical hFE range is 125-800, which can be verified by referencing the appropriate datasheet for the 'CW' variant. It is available in a small surface mount package such as SOT-323 or SOT-23. Power dissipation ratings also need verification in the datasheet, but it is a low power transistor.

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Pricing & Ordering

Quantity Unit Price Ext. Price
425+ $0.1180 $50.1500
905+ $0.1105 $100.0025
1,405+ $0.1068 $150.0540
2,015+ $0.0993 $200.0895
2,620+ $0.0956 $250.4720
3,270+ $0.0918 $300.1860
* Prices exclude shipping and taxes. Shipping costs are calculated at checkout.
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Availability: 120,500 pieces
MOQ: 425 pcs
Order Increment : 1 pcs
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