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 826-8992
製造零件編號BFP840ESDH6327XTSA1
BrandInfineon
HK$3.214
/個 (每包:50個)
單位
NPN 35 mA 2.25 V SOT-343 Surface Mount 75 mW 150 Single 2.9 V - 80 GHz 4 1 -
RS庫存編號 170-7952
製造零件編號BC847C,235
BrandNexperia
HK$0.151
個 (在毎卷:10000)
單位
NPN 100 mA 45 V TO-236 Surface Mount 250 mW 110 Single 50 V 6 V - 3 1 AEC-Q101
RS庫存編號 110-7459
製造零件編號BFR182WH6327XTSA1
BrandInfineon
HK$3.479
/個 (每包:60個)
單位
NPN 35 mA 12 V SOT-23 Surface Mount 250 mW 70 Single 20 V 2 V - 3 1 -
RS庫存編號 169-0619
製造零件編號ZXT12N50DXTA
HK$6.041
個 (在毎卷:1000)
單位
NPN 3 A 50 V MSOP Surface Mount 1.25 W 50 Isolated 100 V 7.5 V 132 MHz 8 2 -
RS庫存編號 803-1103
製造零件編號BC548BU
HK$0.804
/個 (每包:200個)
單位
NPN 100 mA 30 V TO-92 Through Hole 500 mW 110 Single 30 V 5 V 1 MHz 3 1 -
RS庫存編號 826-9901
製造零件編號BCX70KE6327HTSA1
BrandInfineon
HK$0.373
個 (在毎卷:1000)
單位
NPN 100 mA 45 V SOT-23 Surface Mount 330 mW 380 Single 45 V 6 V 250 MHz 3 1 -
RS庫存編號 184-7675
製造零件編號2SC4102U3T106R
BrandROHM
HK$0.889
/個 (每包:50個)
單位
NPN 50 mA 120 V SOT-323 Surface Mount 200 mW 180 Single 120 V 5 V 140 MHz 3 1 -
RS庫存編號 790-5457
製造零件編號NJVMJD44H11T4G
HK$7.634
/個 (每包:5個)
單位
NPN 8 A 80 V DPAK (TO-252) Surface Mount 20 W 40 Single 10 V dc 5 V 20 MHz 3 1 -
RS庫存編號 145-4110
製造零件編號CPH3116-TL-E
HK$0.744
個 (在毎卷:3000)
單位
PNP 1 A 50 V CPH Surface Mount 900 mW 200 Single -50 V -5 V 1 MHz 3 1 -
RS庫存編號 168-2029
製造零件編號DTC014EEBTL
BrandROHM
HK$0.419
/個 (每包:250個)
單位
NPN 100 mA - SOT-416FL Surface Mount 150 mW 35 Single - - 250 MHz 3 1 -
RS庫存編號 770-5222
製造零件編號ZXTN4004KTC
HK$2.989
/個 (每包:10個)
單位
NPN 1 A 150 V DPAK (TO-252) Surface Mount 3.8 W 60 Single 150 V 7 V - 3 1 -
RS庫存編號 145-3387
製造零件編號BD809G
HK$6.164
毎管:50 個
單位
NPN 10 A 80 V TO-220 Through Hole 90 W 15 Single 80 V dc 5 V 1 MHz 3 1 -
RS庫存編號 178-7468
製造零件編號SMBT3904E6327HTSA1
BrandInfineon
HK$0.252
個 (在毎卷:3000)
單位
NPN 200 mA 40 V SOT-23 Surface Mount 330 mW 100 Single 60 V 6 V 300 (Min.) MHz 3 1 -
RS庫存編號 171-5399
製造零件編號DTC115EMT2L
BrandROHM
HK$0.528
個 (在毎卷:8000)
單位
NPN 100 mA - SOT-723 Surface Mount 150 mW 82 Single - - 250 MHz 3 1 -
RS庫存編號 686-8048
製造零件編號BUL128D-B
HK$4.479
/個 (每包:10個)
單位
NPN 4 A 400 V TO-220 Through Hole 70 W 10 Single 700 V 9 V - 3 1 -
RS庫存編號 165-7509
製造零件編號BCP5616H6327XTSA1
BrandInfineon
HK$0.909
個 (在毎卷:1000)
單位
NPN 1 A 80 V SOT-223 Surface Mount 2 W 25 Single 100 V 5 V 100 MHz 3 + Tab 1 -
RS庫存編號 823-1280
製造零件編號DXT2010P5-13
HK$4.155
/個 (每包:25個)
單位
NPN 6 A 60 V PowerDI 5 Surface Mount 3.2 W 300 Single 150 V 7 V 130 MHz 3 1 -
RS庫存編號 752-7919
製造零件編號BC846SH6327XTSA1
BrandInfineon
HK$0.541
Each (On a Tape of 100)
單位
NPN 100 mA 65 V SOT-363 (SC-88) Surface Mount 250 mW 200 Isolated 80 V 6 V 250 MHz 6 2 -
RS庫存編號 751-4395
製造零件編號FZT1051ATA
HK$5.596
Each (On a Tape of 10)
單位
NPN 5 A 40 V SOT-223 Surface Mount 2.5 W 40 Single 150 V 5 V 155 MHz 3 + Tab 1 -
RS庫存編號 484-5166
製造零件編號BCP56-16,115
BrandNexperia
HK$2.382
/個 (每包:25個)
單位
NPN 1 A 80 V SOT-223 (SC-73) Surface Mount 960 mW 100 Single 100 V 5 V 180 MHz 4 1 -