# Bipolar (BJT) Single Transistor, PNP, 45 V, 100 mA, 500 mW, TO-92, Through Hole

![Product image](https://novapart.co/image/farnell:1574384/)

**URL**: https://novapart.co/products/BC557B/bipolar-bjt-single-transistor-pnp-45-v-100-ma-500
**SKU**: BC557B
**Manufacturer**: MULTICOMP PRO
**Price**: €0.0520
**Stock**: 1000+
**Lead Time**: 127 days (indicative)

## Description

Transistor Polarity:PNP; Collector Emitter Voltage V(br)ceo:45V; Transition Frequency ft:150MHz; Power Dissipation Pd:625mW; DC Collector Current:100mA; DC Current Gain hFE:200hFE; Tran

## Specifications

| Parameter | Value |
|---|---|
| Msl | - |
| Svhc | No SVHC (25-Jun-2025) |
| No. Of Pins | 3Pins |
| Product Range | - |
| Qualification | - |
| Power Dissipation | 500mW |
| Transistor Mounting | Through Hole |
| Transistor Polarity | PNP |
| Transition Frequency | 150MHz |
| Transistor Case Style | TO-92 |
| Dc Current Gain Hfe Min | 200hFE |
| Operating Temperature Max | 150°C |
| Continuous Collector Current | 100mA |
| Collector Emitter Voltage Max | 45V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:1574384/)

## **General Purpose Transistor** 

**Pin Configuration:** 1. Emitter 

2.�Base 

3.�Collector 

## **Features:** 

- PNP Silicon Planar Epitaxial Transistor 

Especially Suited For use in Driver Stages of Audio Amplifiers, Low Noise Input Stages of Tape Recorders, HI-FI�Amplifiers,�Signal�Processing�Circuits�of�Television�Receivers 

## **Absolute Maximum Ratings** 

|**Absolute Maximum Ratings**||||
|---|---|---|---|
|**Parameters**|**Symbol**|**Rating**|**Unit**|
|Collector-Emitter�Voltage|VCEO|45|V|
|Collector-Emitter�Voltage|VCES|50||
|Collector-Base�Voltage|VCBO|||
|Emitter-Base�Voltage|VEBO|5||
|Collector�Current�Continuous�Peak|IC<br>ICM|100<br>200|mA|
|Base�Current�Peak|IBM|200||
|Emitter�Current�Peak|IEM|||
|Power�Dissipation�at�Ta�=�25°C�<br>Derate�above�25°C|PTA|500<br>4|mW<br>mW/°C|
|Storage Temperature|Tstg|-65�to�+150|°C|
|Junction Temperature|Tj|150||



Newark.com/multicomp-pro Farnell.com/multicomp-pro Element14.com/multicomp-pro 

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## **General Purpose Transistor** 

## **Electrical Characteristics (Ta = 25°C unless otherwise specified)** 

|**Parameters**|**Symbol**|**Test Condition**|**Rating**|**Unit**|
|---|---|---|---|---|
|Collector-EmitterVoltage|VCEO|IC=2mA,IB= 0|>45|V|
|Collector-BaseVoltage|VCBO|IC=100µA,IE= 0|>50||
|Emitter-BaseVoltage|VEBO|IE=100µA,IC= 0|>5||
|Collector-CutoffCurrent|ICBO<br>ICES|VCB=30V,IE= 0<br>Tj=150°C<br>VCB=30V,IE= 0<br>VCE=80V,VBE= 0|<15<br><5<br><15|nA<br>µA<br>nA|
|Collector-CutoffCurrent|ICES|TJ=125°C<br>VCE=80V,VBE= 0|<4|µA|
|DCCurrentGain|hFE|IC=10µA,VCE=5V<br>**BC557B**<br>**BC557B**<br>IC=100mA,VCE=5V<br>**BC557B**|Typical 150<br>200-450<br>Typical 200|-|
|CollectorEmitterSaturationVoltage|VCE(Sat)|IC=10mA,IB= 0.5mA<br>IC=100mA,IB= 5mA|<0.30<br><0.65|V|
|BaseEmitterSaturationVoltage|VBE(sat)|IC=10mA,IB= 0.5mA<br>IC=100mA,IB= 5mA|Typical 0.70<br>Typical 0.90||
|BaseEmitteronVoltage|VBE(on)|IC=2mA,VCE=5V<br>IC=10mA,VCE=5V|0.55-0.70<br><0.82||
|**Dynamic  Characteristics**|||||
|Transition Frequency|fT|IC=10mA,VCE=5V<br>f=100MHz|Typical 150|MHz|
|CollectoroutputCapacitance|Ccbo|VCB=10V,f=1MHz|<6|pF|
|EmitterInputCapacitance|Cib|VEB=0.5V,f=1MHz|Typical 9||
|Noise Figure|NF|IC=0.2mA,VCE=5V<br>RS=2kΩ,f=1kHz<br>B=200Hz|<10|dB|
|SmallSignalCurrentGain|hfe|IC=2mA,VCE=5V-**BC557B**|Typical 330|-|
|InputImpedance|hie|IC=2mA,VCE=5V-**BC557B**|3.2-8.5|KΩ|
|VoltageFeedbackRatio|hre|IC=2mA,VCE=5V-**BC557B**|Typical 2|×10-4|
|OutputAdmittance|hoe|IC=2mA,VCE=5V-**BC557B**|<60|umhos|



Newark.com/multicomp-pro Farnell.com/multicomp-pro Element14.com/multicomp-pro 

17/09/19 V1.0 

Page <2> 

## **General Purpose Transistor** 

|**Dimensions**|**Min.**|**Max.**|
|---|---|---|
|A|4.32|5.33|
|B|4.45|5.2|
|C|3.18|4.19|
|D|0.41|0.55|
|E|0.35|0.5|
|F|5°||
|G|1.14|1.4|
|H||1.53|
|K|12.7|-|



Dimensions�:�Millimetres 

**Pin Configuration:** 

1. Emitter 

2.�Base 

3.�Collector 

**Part Number Table Description Part Number** Transistor,�PNP,�TO-92 BC557B ~~+~~ 

**Important Notice :** �This�data�sheet�and�its�contents�(the�“Information”)�belong�to�the�members�of�the�AVNET�group�of�companies�(the�“Group”)�or�are�licensed�to�it.�No�licence�is�granted�for� the�use�of�it�other�than�for�information�purposes�in�connection�with�the�products�to�which�it�relates.�No�licence�of�any�intellectual�property�rights�is�granted.�The�Information�is�subject�to�change� without�notice�and�replaces�all�data�sheets�previously�supplied.�The�Information�supplied�is�believed�to�be�accurate�but�the�Group�assumes�no�responsibility�for�its�accuracy�or�completeness,� any�error�in�or�omission�from�it�or�for�any�use�made�of�it.�Users�of�this�data�sheet�should�check�for�themselves�the�Information�and�the�suitability�of�the�products�for�their�purpose�and�not�make� any�assumptions�based�on�information�included�or�omitted.�Liability�for�loss�or�damage�resulting�from�any�reliance�on�the�Information�or�use�of�it�(including�liability�resulting�from�negligence�or� where�the�Group�was�aware�of�the�possibility�of�such�loss�or�damage�arising)�is�excluded.�This�will�not�operate�to�limit�or�restrict�the�Group’s�liability�for�death�or�personal�injury�resulting�from�its� negligence.�Multicomp�Pro�is�the�registered�trademark�of�Premier�Farnell�Limited�2019. 

Newark.com/multicomp-pro Farnell.com/multicomp-pro Element14.com/multicomp-pro 

17/09/19 V1.0 

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- [Supplier page](https://es.farnell.com/multicomp-pro/bc557b/transistor-pnp-45v-0-1a-to-92/dp/1574384)
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