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BC557B Transistors: Pinout, Features and Datasheet

TRANS PNP 45V 0.1A TO-92 BC557B is a small PNP transistor, also the silicon epitaxial planar PNP transistor. This article mainly introduces pinout, features, datasheet, and other detailed information about ON Semiconductor BC557B.

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Sep 14, 2021

Derrick Hart

How to check BC557 | BC547 | BC548 Transistor || Check BC557, BC547, BC548 Transistor

 

TRANS PNP 45V 0.1A TO-92

BC557B is a small PNP transistor, also the silicon epitaxial planar PNP transistor. This article mainly introduces pinout, features, datasheet, and other detailed information about ON Semiconductor BC557B.

BC557BG

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BC557B Description

BC557B is a small PNP transistor, also the silicon epitaxial planar PNP transistor. The package to-92 is suitable for through-hole PCB assembly, and the NPN complementary type is BC547B.

BC557B Pinout

BC557B CAD Model

Symbol

Footprint

3D Model

BC557B Features

• Switching and Amplifier

• High Voltage: BC556, VCEO= -65V

• Low Noise: BC559, BC560

• Complement to BC546, BC547, BC548, BC549, and BC550

• Pb−Free Packages are Available

 

Specifications

BC557BG Tech Specifications

ON Semiconductor BC557BG technical specifications, attributes, parameters and parts with similar specifications to ON Semiconductor BC557BG.

Product Attribute Attribute Value
Lifecycle StatusLAST SHIPMENTS (Last Updated: 2 days ago)
Contact PlatingCopper, Silver, Tin
Mounting TypeThrough Hole
Package / CaseTO-226-3, TO-92-3 (TO-226AA)
Surface MountNO
Number of Pins3Pins
Transistor Element MaterialSILICON
Collector-Emitter Breakdown Voltage45V
Collector-Emitter Saturation Voltage-300mV
Number of Elements1 Element
hFEMin180
Operating Temperature-55°C~150°C TJ
PackagingBulk
Published2007
JESD-609 Codee1
Pbfree Codeyes
Part StatusObsolete
Product Attribute Attribute Value
Moisture Sensitivity Level (MSL)1 (Unlimited)
Number of Terminations3Terminations
ECCN CodeEAR99
Terminal FinishTin/Silver/Copper (Sn/Ag/Cu)
Voltage - Rated DC-45V
Max Power Dissipation625mW
Terminal PositionBOTTOM
Peak Reflow Temperature (Cel)260
Current Rating-100mA
Frequency320MHz
Time@Peak Reflow Temperature-Max (s)40
Base Part NumberBC557
Pin Count3
Element ConfigurationSingle
Power Dissipation625mW
Transistor ApplicationAMPLIFIER
Gain Bandwidth Product320MHz
Product Attribute Attribute Value
Polarity/Channel TypePNP
Transistor TypePNP
Collector Emitter Voltage (VCEO)45V
Max Collector Current100mA
DC Current Gain (hFE) (Min) @ Ic, Vce180 @ 2mA 5V
Current - Collector Cutoff (Max)100nA
Vce Saturation (Max) @ Ib, Ic650mV @ 5mA, 100mA
Transition Frequency320MHz
Collector Base Voltage (VCBO)50V
Emitter Base Voltage (VEBO)5V
Height5.33mm
Length5.2mm
Width4.19mm
Radiation HardeningNo
RoHS StatusRoHS Compliant
Lead FreeLead Free
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BC557B Marking Diagram

BC557B Thermal Characteristics

               Characteristic                 Symbol                   Max                  Unit
 Thermal Resistance, Junction−to−Ambient             R_x0002_ JA 200                 °C/W
 Thermal Resistance, Junction−to−Case             R_x0002_ JC   83.3                 °C/W

BC557B Alternatives

Part Number Description Manufacturer
BC557B-AMMOTRANSISTORS TRANSISTOR 100 mA, 45 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, BIP General Purpose Small Signal NXP Semiconductors
BC557BAMOTRANSISTORS TRANSISTOR 100 mA, 45 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, PLASTIC, SPT, SC-43, 3 PIN, BIP General Purpose Small Signal NXP Semiconductors
933202620116TRANSISTORS TRANSISTOR 100 mA, 45 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, PLASTIC, SPT, SC-43, 3 PIN, BIP General Purpose Small Signal NXP Semiconductors
933202620112TRANSISTORS TRANSISTOR 100 mA, 45 V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, PLASTIC, SPT, SC-43, 3 PIN, BIP General Purpose Small Signal NXP Semiconductors
BC557B,116TRANSISTORS BC557B NXP Semiconductors
BC557B,112TRANSISTORS BC557B NXP Semiconductors
BC557B,126TRANSISTORS BC557B NXP Semiconductors
BC557B-T/RTRANSISTORS 100mA, 45V, PNP, Si, SMALL SIGNAL TRANSISTOR, TO-92, PLASTIC, SC-43A, 3 PIN NXP Semiconductors

BC557B Applications

● Well Suitable For Tv And Home Appliance Equipment

● Small Load Switch Transistor With High Gain And Low Saturation Voltage

● Multi-Channel Data Acquisition

● Portable, Battery-Operated Systems

 

BC557B Package Dimensions

BC557B Manufacturer

ON Semiconductor is committed to maintaining a distinctive, world-class quality system, which transcends all international quality standards and aims to exceed customer expectations. The Business Process Model ensures that they meet or exceed the customer's expectations and the business goals.

 

Datasheet PDF

Download datasheets and manufacturer documentation for ON Semiconductor BC557BG.

BC557BG Documents

Download datasheets and manufacturer documentation for BC557BG

Frequently Asked Questions

1.What is difference between BC547 and BC557?
BC557 is PNP, BC547 is NPN to see what is this transistor reconstructs a circuit from existing PCB on paper, then you will know.
2.What kind of transistor is BC557B?
The three poles of the triode are represented by three letters: Emitter-e, Base-b, Collector-c.
3.What is the number 611 for tripolar BC557B?
BC557(VI,A,B) Si-PNP, To-92, Uni,50V, 0.2A, 0.5W, 150MHz, β=75-500.
FAQ
1.What is difference between BC547 and BC557?
BC557 is PNP, BC547 is NPN to see what is this transistor reconstructs a circuit from existing PCB on paper, then you will know.
2.What kind of transistor is BC557B?
The three poles of the triode are represented by three letters: Emitter-e, Base-b, Collector-c.
3.What is the number 611 for tripolar BC557B?
BC557(VI,A,B) Si-PNP, To-92, Uni,50V, 0.2A, 0.5W, 150MHz, β=75-500.

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