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 Transistor Configuration Maximum Collector Base Voltage Maximum Emitter Base Voltage Maximum Operating Frequency Pin Count Number of Elements per Chip Dimensions Maximum Base Emitter Saturation Voltage
RS 제품 번호 508-236
제조사 부품 번호BC857C,215
제조사Nexperia
₩68.20
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PNP 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW Single 50 V 5 V 100 MHz 3 1 1 x 3 x 1.4mm 0.85 V
RS 제품 번호 170-4155
제조사 부품 번호BC546B A1
₩46.50
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NPN 100 mA 65 V TO-92 Through Hole 500 mW Single 80 V 6 V - 3 1 5.1 x 4.1 x 4.7mm -
RS 제품 번호 796-9681
제조사 부품 번호BC338-16 A1
₩178.25
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NPN 800 mA 25 V TO-92 Through Hole 625 mW Single 30 V 5 V - 3 1 5.1 x 4.1 x 4.7mm -
RS 제품 번호 438-4598
제조사 부품 번호BCP53,115
제조사Nexperia
₩125.55
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PNP 1 A 80 V SOT-223 (SC-73) Surface Mount 1 W Single 100 V 5 V 145 MHz 4 1 1.7 x 6.7 x 3.7mm -
RS 제품 번호 802-1939
제조사 부품 번호MPSW56RLRAG
제조사ON Semiconductor
₩398.35
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PNP 500 mA 80 V TO-92 Through Hole 2.5 W Single -80 V dc -4 V 50 (Min.) MHz 3 1 5.21 x 4.19 x 7.87mm -
RS 제품 번호 121-9550
제조사 부품 번호DSS4240T-7
제조사DiodesZetex
₩79.05
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NPN 2 A 40 V SOT-23 Surface Mount 600 mW Single 40 V 5 V 100 MHz 3 1 3 x 1.4 x 1.1mm 1.1 V
RS 제품 번호 544-901
제조사 부품 번호2SC3601E
제조사Sanyo
₩1,581.00
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NPN 150 mA 200 V TO-126 Through Hole 1.2 W - 200 V 4 V 400 MHz 3 1 11 x 8 x 2.7mm 1 V
RS 제품 번호 121-9987
제조사 부품 번호FZT957TA
제조사DiodesZetex
₩567.30
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PNP 1 A 300 V SOT-223 Surface Mount 3 W Single 300 V 6 V 85 MHz 3 + Tab 1 1.65 x 6.7 x 3.7mm 1.15 V
RS 제품 번호 170-7962
제조사 부품 번호BC857C,235
제조사Nexperia
₩23.25
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PNP 100 mA -45 V SOT-23 Surface Mount 250 mW Single -50 V -5 V - 3 1 3 x 1.4 x 1mm -700 mV
RS 제품 번호 112-5475
제조사 부품 번호PZT2907A,115
제조사Nexperia
₩567.30
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PNP 600 mA 60 V SOT-223 (SC-73) Surface Mount 1.15 W Single 60 V 5 V 200 MHz 4 1 1.7 x 6.7 x 3.7mm 2.6 V
RS 제품 번호 170-3410
제조사 부품 번호TIP50G
제조사ON Semiconductor
₩709.90
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NPN 1 A 400 V TO-220AB Through Hole 40 W Single 500 V 5 V 10 MHz 3 1 9.28 x 10.28 x 4.82mm -
RS 제품 번호 484-5194
제조사 부품 번호BCX70H,215
제조사Nexperia
₩218.55
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NPN 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW Single 45 V 5 V 250 MHz 3 1 1 x 3 x 1.4mm 1.05 V
RS 제품 번호 796-9694
제조사 부품 번호BC546C A1
₩198.40
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NPN 100 mA 65 V TO-92 Through Hole 500 mW Single 80 V 6 V - 3 1 5.1 x 4.1 x 4.7mm -
RS 제품 번호 761-9831
제조사 부품 번호BC556BTA
제조사ON Semiconductor
₩79.05
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PNP 100 mA 65 V TO-92 Through Hole 500 mW Single -80 V -5 V 150 MHz 3 1 4.58 x 3.86 x 4.58mm -0.9 V
RS 제품 번호 486-4577
제조사 부품 번호MJE350
₩874.20
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PNP 500 mA 300 V SOT-32 Through Hole 20.8 W Single 300 V 3 V - 3 1 10.8 x 7.8 x 2.7mm -
RS 제품 번호 168-6253
제조사 부품 번호MJE2955T
₩875.75
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PNP 10 A 60 V TO-220 Through Hole 75 W Single 70 V 5 V 2 MHz 3 1 9.15 x 10.4 x 4.6mm -
RS 제품 번호 801-5580
제조사 부품 번호PBHV9115X,115
제조사Nexperia
₩457.25
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PNP 1 A 150 V SOT-89 Surface Mount 1.5 W Single -200 V -6 V 100 MHz 3 1 4.6 x 2.6 x 1.6mm -1.2 V
RS 제품 번호 166-1817
제조사 부품 번호MMBT2907A
제조사ON Semiconductor
₩44.95
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PNP 800 mA 60 V SOT-23 Surface Mount 350 mW Single 60 V 5 V - 3 1 - 2.6 V
RS 제품 번호 601-1113
제조사 부품 번호2SA1048-GR(F)
제조사Toshiba
₩161.20
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PNP 150 mA 50 V E-Line Surface Mount 200 mW - 50 V 5 V 80 MHz 3 1 3.2 x 4.2 x 2.6mm -
RS 제품 번호 102-4116
제조사 부품 번호2SD882
₩781.20
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NPN 3 A 30 V SOT-32 Through Hole 12.5 W Single 60 V 5 V 100 MHz 3 1 10.8 x 7.8 x 2.7mm 1.2 V