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 madeA 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 transistorTransistors 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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Description Price 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庫存編號 751-5451
製造零件編號ZXTP23015CFHTA
HK$5.459
/個 (每包:10個)
單位
PNP 6 A 15 V SOT-23 Surface Mount 1.81 W 140 Single -15 V -7 V 270 MHz 3 1 -
RS庫存編號 122-0888
製造零件編號BCP53TA
HK$0.839
個 (在毎卷:1000)
單位
PNP 1 A 80 V SOT-223 Surface Mount 2 W 40 Single -100 V -5 V 150 MHz 3 + 1 (Tab) 1 -
RS庫存編號 122-2365
製造零件編號FMMTL718TA
HK$1.234
個 (在毎卷:3000)
單位
PNP 1 A 20 V SOT-23 Surface Mount 500 mW 500 Single -20 V -5 V 265 MHz 3 1 -
RS庫存編號 790-5356
製造零件編號MJD42CRLG
HK$4.871
/個 (每包:10個)
單位
PNP 6 A 100 V DPAK (TO-252) Surface Mount 20 W 15 Single 100 V dc 5 V 1 MHz 3 1 -
RS庫存編號 165-8489
製造零件編號ZTX855
HK$4.162
個 (以毎袋:4000)
單位
NPN 4 A 150 V TO-92 Through Hole 1.58 W 35 Single 250 V 6 V 100 MHz 3 1 -
RS庫存編號 146-0890
製造零件編號BC856BT
BrandNexperia
HK$0.245
個 (在毎卷:3000)
單位
PNP 100 mA 65 V SOT-416 (SC-75) Surface Mount 150 mW 220 Single -80 V -5 V 100 MHz 3 1 -
RS庫存編號 184-4314
製造零件編號MJE200G
HK$2.185
個 (以毎盒:500)
單位
NPN 5 (Continuous) A, 10 (Peak) A 40 V dc TO-225 Through Hole 15 W 10 Single 25 V dc 8 V dc 10 MHz 3 1 -
RS庫存編號 166-2949
製造零件編號PN2907BU
HK$0.26
個 (以毎袋:10000)
單位
PNP 800 mA 40 V TO-92 Through Hole 625 mW 100 Single -60 V -5 V 1 MHz 3 1 -
RS庫存編號 816-0683
製造零件編號PBSS4032SPN,115
BrandNexperia
HK$7.046
/個 (每包:10個)
單位
NPN + PNP 5.7 A 30 V SOT-96 Surface Mount 2.3 W 200 (PNP), 300 (NPN) Isolated -30 V, 30 V -5 (PNP) V, 5 (NPN) V 100 MHz 8 2 -
RS庫存編號 168-2031
製造零件編號DTC114TUAT106
BrandROHM
HK$0.495
/個 (每包:200個)
單位
NPN 100 mA 50 V SOT-323 Surface Mount 200 mW 100 Single 50 V 5 V 250 MHz 3 1 -
RS庫存編號 177-6209
製造零件編號SST4403T116
BrandROHM
HK$0.562
個 (在毎卷:3000)
單位
PNP 600 mA -40 V SOT-23 Surface Mount 350 mW 20 Single -40 V -6 V - 3 1 -
RS庫存編號 145-3041
製造零件編號SMMBT3906LT1G
HK$0.369
個 (在毎卷:3000)
單位
PNP 200 mA 40 V SOT-23 Surface Mount 225 mW 30 Single -40 V dc -5 V 100 MHz 3 1 AEC-Q101
RS庫存編號 484-5706
製造零件編號PZTA42,115
BrandNexperia
HK$3.166
/個 (每包:25個)
單位
NPN 100 mA 300 V SOT-223 (SC-73) Surface Mount 1.2 W 25 Single 300 V 6 V 50 MHz 4 1 -
RS庫存編號 772-5074
製造零件編號2SC5336-T1-AZ
HK$4.21
/個 (每包:10個)
單位
NPN 100 mA 12 V Power Mini-Mold Surface Mount 1.2 W 50 Single 20 V 3 V - 4 1 -
RS庫存編號 827-5110
製造零件編號BFP740H6327XTSA1
BrandInfineon
HK$3.57
/個 (每包:25個)
單位
NPN 30 mA 4 V SOT-343 Surface Mount 160 mW 160 Single 13 V 1.2 V 42 GHz 4 1 -
RS庫存編號 168-2139
製造零件編號DTD123TKT146
BrandROHM
HK$2.871
/個 (每包:50個)
單位
NPN 500 mA 40 (Minimum) V SOT-346 Surface Mount 200 mW 100 Single 50 (Minimum) V 5 (Minimum) V 200 MHz 3 1 -
RS庫存編號 166-0490
製造零件編號PXT2222A,115
BrandNexperia
HK$1.29
個 (在毎卷:1000)
單位
NPN 100 mA 40 V SOT-89 Surface Mount 1.1 W 35 Single 60 V 6 V - 3 1 -
RS庫存編號 166-0456
製造零件編號MMBT2907AT-7-F
HK$0.478
個 (在毎卷:3000)
單位
PNP 600 mA 60 V SOT-523 (SC-89) Surface Mount 150 mW 50 Single -60 V -5 V - 3 1 -
RS庫存編號 826-9058
製造零件編號BFS483H6327XTSA1
BrandInfineon
HK$4.498
/個 (每包:50個)
單位
NPN 65 mA 12 V SOT-363 (SC-88) Surface Mount 450 mW 70 Single 20 V 2 V 8 GHz 6 1 -
RS庫存編號 184-4650
製造零件編號BCX19LT1G
HK$0.531
/個 (每包:250個)
單位
NPN 500 (Continuous) mA 45 V dc SOT-23 Surface Mount 300 mW 40 Single 50 V dc 5 V dc - 3 1 AEC-Q101