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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-AP Datasheet
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 Feb 1 - Feb 6 (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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BC547-AP Specifications

ManufacturerMicro Commercial Co
CategoryDiscrete Semiconductor Products - Transistors - Bipolar (BJT) - Single
Datasheet BC547-AP Datasheet
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-AP Datasheet

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

BC547-AP Reviews

Average User Rating
5 / 5 (147)
★ ★ ★ ★ ★
5 ★
4 ★
3 ★
2 ★
1 ★


December 26, 2019

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


October 6, 2019

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


August 17, 2019

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


July 20, 2019

Excellent company. Product as described. Usually fast and well packed.Very nice.

Mem*****s Lal

April 8, 2019

Very good product for electronic projects and are of great quality and test great.


January 26, 2019

I am a novice technician. I really rely on reviews to help guide me, as I do not have anyone to assist me with electronics. I purchased these items and report I am happy with the purchase. I took a chance and it was one of the better choices I made.


September 17, 2018

Best way to locate what I need, on a fast and efficient shipping! Keep up the good work!


September 14, 2018

I have never been experienced anything wrong with my order, the logistic has always get out the same day, and the items are always well packaged.


July 7, 2018

Excellent Seller,great product and Super Fast Shipping! Highly recommended A+++


June 25, 2018

I am very happy with how Heisener do business. Will definitely buy their products in the future as I have confidence in their customer service.

BC547-AP Guarantees

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Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantee

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

BC547-AP Packaging

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