BJT & Bipolar Transistors

A Bipolar Transistor or BJT (Bipolar Junction Transistor) is a solid state, three-pin device made from three layers of silicon. A BJT is designed to amplify current, bipolar transistors can also function as a switch. There are two main types of transistor, PNP (positive negative positive) or NPN (negative positive negative).
How a Bipolar transistor is made
A bipolar transistor is made by joining two signal diodes back to back creating two PN junctions connected in series, sharing a common P or N terminal. By nature, silicon does not normally conduct electricity well. However, when silicon is treated with certain chemicals or impurities we can make the material and electrons behave in a different way. This process is called doping. The doping process improves the semiconductors ability to conduct electricity.
What does a bipolar transistor do?
As we said before a bipolar transistor has two possible functions, switching, and amplification. Due to the devices three layers of doped semiconductor material, supplying the transistor with a signal voltage enables the discrete component to act as an insulator or a conductor. This clever change provides the transistors with two basic functions, switching (digital) electronics or amplification (analog) electronics.
Types of transistor
Transistors are available in panel, surface and through hole mounting options in plastic package or metal can versions. All have three terminals or pins, the Base, the Collector, and the Emitter.
Where are bipolar transistors used?
Transistors are one of the most widely used discrete components in electronic designs and circuits. Transistors are used for the amplification of all types of electrical signals in circuits made up of individual components rather than ICs (integrated circuits).

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제품설명 단가 Transistor Type Maximum DC Collector Current Maximum Collector Emitter Voltage Package Type Mounting Type Maximum Power Dissipation Minimum DC Current Gain Transistor Configuration Maximum Collector Base Voltage Maximum Emitter Base Voltage Maximum Operating Frequency Pin Count Number of Elements per Chip Automotive Standard
RS 제품 번호 296-273
제조사 부품 번호MJ15004G
제조사ON Semiconductor
₩8,931.10
Each
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PNP 20 A 140 V TO-204AA Through Hole 250 W 25 Single 140 V 5 V 2 MHz 2 1 -
RS 제품 번호 803-1131
제조사 부품 번호BC556BTFR
제조사ON Semiconductor
₩94.55
Each (In a Pack of 200)
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PNP 100 mA 65 V TO-92 Through Hole 500 mW 110 Single -80 V -5 V 10 MHz 3 1 -
RS 제품 번호 761-9831
제조사 부품 번호BC556BTA
제조사ON Semiconductor
₩79.05
Each (In a Pack of 100)
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PNP 100 mA 65 V TO-92 Through Hole 500 mW 110 Single -80 V -5 V 150 MHz 3 1 -
RS 제품 번호 146-2100
제조사 부품 번호BC556BTFR
제조사ON Semiconductor
₩49.60
Each (On a Reel of 2000)
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PNP 100 mA 65 V TO-92 Through Hole 500 mW 110 Single -80 V -5 V 10 MHz 3 1 -
RS 제품 번호 102-4116
제조사 부품 번호2SD882
₩823.05
Each (In a Tube of 50)
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NPN 3 A 30 V SOT-32 Through Hole 12.5 W 30 Single 60 V 5 V 100 MHz 3 1 -
RS 제품 번호 102-2276
제조사 부품 번호MJE15033G
제조사ON Semiconductor
₩1,684.85
Each (In a Tube of 50)
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PNP 8 A 250 V TO-220AB Through Hole 50 W 10 Single 250 V 5 V 30 MHz 3 1 -
RS 제품 번호 168-6254
제조사 부품 번호MJE350
₩695.95
Each (In a Tube of 50)
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PNP 500 mA 300 V SOT-32 Through Hole 20.8 W 30 Single 300 V 3 V - 3 1 -
RS 제품 번호 170-3410
제조사 부품 번호TIP50G
제조사ON Semiconductor
₩748.65
Each (In a Tube of 50)
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NPN 1 A 400 V TO-220AB Through Hole 40 W 10 Single 500 V 5 V 10 MHz 3 1 -
RS 제품 번호 756-0293
제조사 부품 번호2SC5886A(T6L1,NQ)
제조사Toshiba
₩1,035.40
Each (In a Pack of 5)
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NPN 5 A 50 V DPAK (TO-252) Surface Mount 20 W 200 Single 120 V 9 V - 3 1 -
RS 제품 번호 166-3709
제조사 부품 번호BCP54
제조사ON Semiconductor
₩176.70
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NPN 1.5 A 45 V SOT-223 Surface Mount 1.5 W 150 Single 45 V 5 V - 3 + Tab 1 -
RS 제품 번호 669-7521
제조사 부품 번호FCX491ATA
제조사DiodesZetex
₩503.75
Each (In a Pack of 25)
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NPN 1 A 40 V SOT-89 Surface Mount 1 W 35 Single 40 V 5 V 150 MHz 3 1 -
RS 제품 번호 486-4561
제조사 부품 번호MJE2955T
₩1,148.55
Each (In a Pack of 5)
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PNP 10 A 60 V TO-220 Through Hole 75 W 5 Single 70 V 5 V 2 MHz 3 1 -
RS 제품 번호 122-0070
제조사 부품 번호MJ15004G
제조사ON Semiconductor
₩6,624.70
Each (In a Tray of 100)
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PNP 20 A 140 V TO-204AA Through Hole 250 W 25 Single 140 V 5 V 2 MHz 2 1 -
RS 제품 번호 663-8493
제조사 부품 번호2SC2909S-AA
제조사Sanyo
₩313.10
Each (In a Pack of 5)
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NPN 5 A 160 V NP Through Hole 600 mW 140 - 180 V 5 V 150 MHz 3 1 -
RS 제품 번호 801-5580
제조사 부품 번호PBHV9115X,115
제조사Nexperia
₩457.25
Each (In a Pack of 10)
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PNP 1 A 150 V SOT-89 Surface Mount 1.5 W 10 Single -200 V -6 V 100 MHz 3 1 -
RS 제품 번호 484-5194
제조사 부품 번호BCX70H,215
제조사Nexperia
₩224.75
Each (In a Pack of 50)
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NPN 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 40 Single 45 V 5 V 250 MHz 3 1 -
RS 제품 번호 806-2734
제조사 부품 번호KSA1381ESTU
제조사ON Semiconductor
₩528.55
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PNP 100 mA 300 V TO-126 Through Hole 7 W 40 Single -300 V -5 V 150 MHz 3 1 -
RS 제품 번호 166-1817
제조사 부품 번호MMBT2907A
제조사ON Semiconductor
₩51.15
Each (On a Reel of 3000)
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PNP 800 mA 60 V SOT-23 Surface Mount 350 mW 50 Single 60 V 5 V - 3 1 -
RS 제품 번호 796-9694
제조사 부품 번호BC546C A1
₩198.40
Each (In a Pack of 250)
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NPN 100 mA 65 V TO-92 Through Hole 500 mW 420 Single 80 V 6 V - 3 1 -
RS 제품 번호 486-4577
제조사 부품 번호MJE350
₩860.25
Each (In a Pack of 5)
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PNP 500 mA 300 V SOT-32 Through Hole 20.8 W 30 Single 300 V 3 V - 3 1 -