BC547 Specs and Replacement
The BC547 is a widely used NPN bipolar junction transistor designed for low-power switching and signal amplification. It operates with a maximum collector current of 100mA and a collector-emitter voltage rating of 45V, making it suitable for small electronic circuits, sensors, and control stages. The device offers three gain groups (A, B, C), with hFE typically ranging from 110 to 800, allowing designers to choose appropriate amplification levels. With its low noise characteristics and fast switching response, the BC547 is common in audio preamplifiers, digital interfaces, and general hobbyist projects. Its TO92 package ensures compact size and easy PCB mounting. The BC547 remains a reliable, cost-effective component for analog and switching applications.
Type Designator: BC547
Material of Transistor: Si
Polarity: NPN
Absolute Maximum Ratings
Maximum Collector Power Dissipation (Pc): 0.625 W
Maximum Collector-Base Voltage |Vcb|: 50 V
Maximum Collector-Emitter Voltage |Vce|: 45 V
Maximum Emitter-Base Voltage |Veb|: 6 V
Maximum Collector Current |Ic max|: 0.1 A
Max. Operating Junction Temperature (Tj): 150 °C
Electrical Characteristics
Transition Frequency (ft): 150 MHz
Collector Capacitance (Cc): 1.7 pF
Forward Current Transfer Ratio (hFE), MIN: 110
Noise Figure, dB: -
Package: TO92
- BJT ⓘ Cross-Reference Search
BC547 datasheet
..1. Size:193K motorola
bc546 bc547 bc548.pdf 
MOTOROLA Order this document SEMICONDUCTOR TECHNICAL DATA by BC546/D Amplifier Transistors BC546, B NPN Silicon BC547, A, B, C BC548, A, B, C COLLECTOR 1 2 BASE 3 EMITTER 1 MAXIMUM RATINGS 2 3 BC BC BC 546 547 548 Rating Symbol Unit CASE 29 04, STYLE 17 TO 92 (TO 226AA) Collector Emitter Voltage VCEO 65 45 30 Vdc Collector Base Voltage VCBO 80 50 30 Vdc Emitt... See More ⇒
..2. Size:53K philips
bc546 bc547 3.pdf
DISCRETE SEMICONDUCTORS DATA SHEET book, halfpage M3D186 BC546; BC547 NPN general purpose transistors 1999 Apr 15 Product specification Supersedes data of 1997 Mar 04 Philips Semiconductors Product specification NPN general purpose transistors BC546; BC547 FEATURES PINNING Low current (max. 100 mA) PIN DESCRIPTION Low voltage (max. 65 V). 1 emitter 2 base APPLICATIONS ... See More ⇒
..3. Size:97K philips
bc847 bc547 ser.pdf
BC847/BC547 series 45 V, 100 mA NPN general-purpose transistors Rev. 07 10 December 2008 Product data sheet 1. Product profile 1.1 General description NPN general-purpose transistors in small plastic packages. Table 1. Product overview Type number[1] Package PNP complement NXP JEITA JEDEC BC847 SOT23 - TO-236AB BC857 BC847A BC857A BC847B BC857B BC847B/DG - BC847C BC857C BC847W... See More ⇒
..4. Size:44K fairchild semi
bc546 bc547 bc548 bc549 bc550.pdf
BC546/547/548/549/550 Switching and Applications High Voltage BC546, VCEO=65V Low Noise BC549, BC550 Complement to BC556 ... BC560 TO-92 1 1. Collector 2. Base 3. Emitter NPN Epitaxial Silicon Transistor Absolute Maximum Ratings Ta=25 C unless otherwise noted Symbol Parameter Value Units VCBO Collector-Base Voltage BC546 80 V BC547/550 50 V BC548/549 30 V VCE... See More ⇒
..5. Size:26K fairchild semi
bc547 bc547a bc547b bc547c.pdf
Discrete POWER & Signal Technologies BC547 BC547A BC547B BC547C E TO-92 B C NPN General Purpose Amplifier This device is designed for use as general purpose amplifiers and switches requiring collector currents to 300 mA. Sourced from Process 10. See PN100A for characteristics. Absolute Maximum Ratings* TA = 25 C unless otherwise noted Symbol Parameter Value Units VCEO Collector-... See More ⇒
..6. Size:295K mcc
bc546 bc547 bc548 to-92.pdf
BC546A/B/C MCC Micro Commercial C omponents TM BC547A/B/C 20736 Marilla Street Chatsworth Micro Commercial Components CA 91311 Phone (818) 701-4933 BC548A/B/C Fax (818) 701-4939 Features NPN Silicon Lead Free Finish/RoHS Compliant ("P" Suffix designates RoHS Compliant. See ordering information) Amplifier Transistor Through Hole Package 150 C Junction Tempe... See More ⇒
..7. Size:119K cdil
bc546 bc547 bc548.pdf
Continental Device India Limited An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company BC546, A, B, C NPN SILICON PLANAR EPITAXIAL TRANSISTORS BC547, A. B, C BC548, A. B, C TO-92 Plastic Package For Lead Free Parts, Device Part # will be Prefixed with E B "T" C Amplifier Transistors ABSOLUTE MAXIMUM RATINGS (Ta=25 C) DESCRIPTION SYMBOL BC546 BC547 BC548 UNITS Collector Em... See More ⇒
..8. Size:454K jiangsu
bc546 bc547 bc548.pdf
JIANGSU CHANGJING ELECTRONICS TECHNOLOGY CO., LTD TO-92 Plastic-Encapsulate Transistors BC546 / BC547 / BC548 TRANSISTOR (NPN) TO-92 FEATURES High Voltage Complement to BC556,BC557,BC558 1. COLLECTOR 2. BASE 3. EMITTER BC546 BC547 BC548 Z XXX Z XXX Z XXX 1 1 1 Equivalent Circuit BC546,BC547,BC548=Device code Solid dot=Green molding compound device, i... See More ⇒
..9. Size:277K kec
bc546 bc547 bc548.pdf
SEMICONDUCTOR BC546/7/8 TECHNICAL DATA EPITAXIAL PLANAR NPN TRANSISTOR GENERAL PURPOSE APPLICATION. SWITCHING APPLICATION . B C FEATURES High Voltage BC546 VCEO=65V. N DIM MILLIMETERS For Complementary With PNP Type BC556/557/558. A 4.70 MAX E K G B 4.80 MAX C 3.70 MAX D D 0.45 E 1.00 F 1.27 G 0.85 MAXIMUM RATING (Ta=25 ) H 0.45 _ H J 14.00 + 0.50 CHARACTERISTIC S... See More ⇒
..10. Size:548K lge
bc548 bc547 bc546.pdf
BC546/BC547/BC548(NPN) TO-92 Bipolar Transistors TO-92 1. COLLECTOR 2. BASE 3. EMITTER Features High Voltage Complement to BC556,BC557,BC558 MAXIMUM RATINGS (TA=25 unless otherwise noted) Parameter Symbol Value Units Collector-Base Voltage BC546 80 BC547 50 VCBO V BC548 30 Collector-Emitter Voltage BC546 65 VCEO BC547 45 V BC548 30 Dimensions in i... See More ⇒
..11. Size:1122K lge
bc546 bc547 bc548.pdf
BC546/BC547/BC548(NPN) TO-92 Bipolar Transistors TO-92 1. COLLECTOR 2. BASE 3. EMITTER Features High Voltage Complement to BC556,BC557,BC558 MAXIMUM RATINGS (TA=25 unless otherwise noted) Parameter Symbol Value Units Collector-Base Voltage BC546 80 BC547 50 VCBO V BC548 30 Collector-Emitter Voltage BC546 65 VCEO BC547 45 V BC548 30 6 VEBO Emitter-Ba... See More ⇒
..12. Size:1074K wietron
bc546 bc547 bc548.pdf
BC546, A/B BC547, A/B/C BC548, A/B/C NPN General Purpose Transistor COLLECTOR 1 TO-92 2 BASE 1 2 3 3 EMITTER Maximum Ratings ( T =25 C unless otherwise noted) A Rating Symbol BC546 BC547 BC548 Unit Collector-Emitter Voltage VECO 65 45 30 Vdc Collector-Base Voltage V 80 50 30 Vdc CBO Emitter-Base Voltage VEBO 6 6 6 Vdc Collector Current Continuous lC 100 mAdc THERMAL CHA... See More ⇒
..13. Size:1096K blue-rocket-elect
bc547.pdf
BC547 Rev.E Mar.-2016 DATA SHEET / Descriptions TO-92(R) NPN Silicon NPN transistor in a TO-92(R) Plastic Package. / Features High Voltage, Low Noise. / Applications General purpose and switching application. / Equivalent Circuit ... See More ⇒
0.1. Size:60K st
bc547b bc547c.pdf
BC547B BC547C SMALL SIGNAL NPN TRANSISTORS Ordering Code Marking Package / Shipment BC547B BC547B TO-92 / Bulk BC547B-AP BC547B TO-92 / Ammopack BC547C BC547C TO-92 / Bulk BC547C-AP BC547C TO-92 / Ammopack SILICON EPITAXIAL PLANAR NPN TRANSISTORS TO-92 PACKAGE SUITABLE FOR THROUGH-HOLE PCB ASSEMBLY TO-92 TO-92 BC547B - THE PNP COMPLEMENTARY Bulk Ammopack TYPE IS BC557B AP... See More ⇒
0.3. Size:72K onsemi
bc546b bc547a-b-c bc548b-c.pdf
BC546B, BC547A, B, C, BC548B, C Amplifier Transistors NPN Silicon Features http //onsemi.com Pb-Free Packages are Available* COLLECTOR 1 MAXIMUM RATINGS 2 BASE Rating Symbol Value Unit Collector - Emitter Voltage VCEO Vdc BC546 65 3 BC547 45 EMITTER BC548 30 Collector - Base Voltage VCBO Vdc BC546 80 BC547 50 BC548 30 TO-92 Emitter - Base Voltage VEBO 6.0 Vdc CASE 2... See More ⇒
0.4. Size:199K auk
sbc547.pdf
SBC547 NPN Silicon Transistor Descriptions PIN Connection General purpose application C Switching application B Features High voltage VCEO=45V E Complementary pair with SBC557 TO-92 Ordering Information Type NO. Marking Package Code SBC547 SBC547 TO-92 Absolute maximum ratings (Ta=25 C) Characteristic Symbol Ratings Unit Collector-Base volt... See More ⇒
0.6. Size:412K cystek
bc547ba3.pdf
Spec. No. C204A3 Issued Date 2015.01.23 CYStech Electronics Corp. Revised Date Page No. 1 / 7 General Purpose NPN Epitaxial Planar Transistor BC547BA3 Description The BC547BA3 is designed for use in driver stage of AF amplifier and low speed switching. Complementary to BC557BA3. Pb-free package Symbol Outline BC547BA3 TO-92 B Base C Collector ... See More ⇒
Detailed specifications: BC538-25
, BC538-6
, BC546
, BC546A
, BC546AP
, BC546B
, BC546BP
, BC546VI
, BD333
, BC547A
, BC547AP
, BC547B
, BC547BP
, BC547C
, BC547VI
, BC548
, BC548A
.
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