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BC547- AP TransistorBc

The BC547 is an NPN bipolar-junction triode (BJT) which means that the emitter and collector consist of an n-type substrate while the base consists of a p-type substrate. The two p-n junctions formed between these regions give rise to the various input-output characteristics of the transistors.

As the name itself indicates, a transistor basically works by transferring resistance. In other words, small current input at the base terminal leads to larger currents through the collector and emitter terminals.

The Bc547 junction transistor is mainly used for switching and amplification purposes. These two uses are briefly described below:

Important ratings and input-output characteristics of the Bc547 transistor:




For Reference Only

Part Number BC547-AP
Manufacturer Micro Commercial Co
Description TRANS NPN 45V 0.1A TO-92
Datasheet BC547-APDatasheet
Package TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
In Stock 373 piece(s)
Unit Price Request a Quote
Lead Time To be Confirmed
Estimated Delivery Time Apr 10 - Apr 15 (Choose Expedited Shipping)
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  • To learn about the specification of BC547-AP, please search the datasheet by clicking the link above. If you couldn't find the correct datasheet, please refer to the manufacturer's official datasheet.
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ManufacturerMicro Commercial Co
CategoryDiscrete Semiconductor Products - Transistors - Bipolar (BJT) - Single
Datasheet BC547-APDatasheet
PackageTO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Transistor TypeNPN
Current - Collector (Ic) (Max)100mA
Voltage - Collector Emitter Breakdown (Max)45V
Vce Saturation (Max) @ Ib, Ic300mV @ 5mA, 100mA
DC Current Gain (hFE) (Min) @ Ic, Vce110 @ 2mA, 5V
Power - Max625mW
Frequency - Transition300MHz
Operating Temperature-55°C ~ 150°C (TJ)
Mounting TypeThrough Hole
Package / CaseTO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device PackageTO-92


BC547 Datasheet


  • Through Hole Package
  • 150oC Junction Temperature
  • Case Material: Molded Plastic. UL FlammabilityClassification Rating 94V-0 and MSL rating 1
  • Marking:Type Number
  • Lead Free Finish/Rohs Compliant) ("P"Suffix designatesCompliant. See ordering information)

Mechanical Data

  • Case: TO-92, Molded Plastic
  • Polarity: indicated as below.

Maximum Ratings @ 25oC Unless Otherwise Specified

Charateristic Symbol Value Unit
Collector-Emitter Voltage BC547 VCEO 45 V
Collector-Base Voltage BC547 VCEO 50 V
Emitter-Base Voltage VEBO 6.0 V
Collector Current(DC) IC 100 mA
Power Dissipation@TA=25oC Pd 625 mW
5.0 mW/oC
Power Dissipation@TC=25oC Pd 1.5 W
12 mW/oC
Thermal Resistance, Junction to Ambient Air RJA 200 oC/W
Thermal Resistance, Junction toCase RJC 83.3 oC/W
Operating & Storage Temperature Tj, TSTG -55~150 oC


Average User Rating
5 / 5 (147)
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December 26, 2019

Very good contact, well packed, hope to buy from you again.


November 30, 2019

Your technical assistance and professionalism cannot be complained!


November 17, 2019

arrived well within time bracket, put this firm on my suppliers list, many thanks


October 20, 2019

I always enjoy shopping with Heisener, never makes a mistake, most reliable, and no long waiting for deliveries.


October 6, 2019

Heisener is awesome! Never any issues whatsoever. Product selection is good and delivery is on time.


September 11, 2019

It gives you a good quality product, with a great variety.. I will for sure order this set again when i start to run low


September 4, 2019

It's an incredible place to buy the hard-to-find parts. Fair price, good quality and nice service! I would definitely do business with them again, thank you!


August 27, 2019

Fast shipping. Got it in few dayss from Hong Kong


August 23, 2019

Tested one of them and works good.


August 17, 2019

I can get a patience and respect for each order. Thank you!


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We provide 90 days warranty.

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