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BC557B

The BC557B is a PNP bipolar junction transistor manufactured by On Semiconductor. It features a Collector-Emitter Voltage of 45V and a Collector Current of 0.1A.

✓ Total Stock: 81,690 pcs

$ Price Range: $0.99

BC557B Available from 5 distributors

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Distributor		Stock	Pricing	MOQ	PKG	Lead Time	Date Code	On Order Quantity	On Order Delivery
Fe Components ✓ Non-Authorised Inventory information	78,000 pcs On Request	78000 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Bristol Electronics ✓ Non-Authorised Inventory information	1,980 pcs On Request	1980 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Braun Electronic Components ✓ Non-Authorised Inventory information	605 pcs On Request	605 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Emiteli ✓ Non-Authorised Inventory information	605 pcs On Request	605 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request
Partservice ✓ Non-Authorised Inventory information	500 pcs On Request	500 pcs	On Request	1	On Request	On Request	On Request	On Request	On Request

BC557B Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	On Semiconductor
Frequency	150 MHz
Lead Spacing	1.27 mm
Lead Style	Through Hole
Mounting Type	THT
Polarization	Bipolar
Power Dissipation	625 mW

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BC557B Description

Short technical summary and product information.

The BC557B is a PNP bipolar junction transistor (BJT) from On Semiconductor, designed for general-purpose amplification and switching applications. It operates with a Collector-Emitter Voltage of up to 45V and can handle a Collector Current of 0.1A, with a Power Dissipation rating of 625mW.

This transistor offers a Current Gain ranging from 180 to 460 and a Frequency response up to 150 MHz. It is housed in a TO92 package suitable for Through-Hole Technology (THT) mounting.

The BC557B is a reliable component for various electronic circuits requiring PNP amplification or switching capabilities. Its specifications make it suitable for use in signal processing, audio amplification, and control circuits.

BC557B Quick Information

Product Type: PNP Bipolar Transistor

Canonical Name: BC557B PNP Bipolar Transistor

Subcategory: BJT

BC557B Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

BC557B Estimated Pricing

Qty	Low	High
1+	$0.99	$0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

BC557B Features

PNP bipolar junction transistor.
45V Collector-Emitter Voltage rating.
0.1A maximum Collector Current.
625mW power dissipation.
TO92 package for THT mounting.

BC557B Applications

General purpose amplification.
Signal switching applications.
Audio amplification circuits.
Control circuit applications.

BC557B FAQs

7 frequently asked questions generated from this part’s specifications.

What is the Collector-Emitter Voltage for the BC557B?

The Collector-Emitter Voltage for the BC557B is 45V.

What is the maximum Collector Current of the BC557B?

The maximum Collector Current for the BC557B is 0.1A.

What is the power dissipation of the BC557B transistor?

The power dissipation for the BC557B is 625mW.

What is the current gain range for the BC557B?

The current gain for the BC557B ranges from 180 to 460.

What is the frequency response of the BC557B?

The BC557B has a frequency response of 150 MHz.

What type of transistor is the BC557B?

The BC557B is a PNP bipolar transistor.

What package type is the BC557B supplied in?

The BC557B is supplied in a TO92 package for THT mounting.