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 166-2584
製造零件編號SS8050DBU
HK$0.335
個 (以毎袋:10000)
單位
NPN 1.5 A 25 V TO-92 Through Hole 1 W 40 Single 40 V 6 V - 3 1 -
RS庫存編號 145-5537
製造零件編號SS8050DTA
HK$0.351
Each (On a Tape of 2000)
單位
NPN 1.5 A 25 V TO-92 Through Hole 1 W 40 Single 40 V 6 V - 3 1 -
RS庫存編號 124-9936
製造零件編號2N3055AG
HK$35.809
Each (In a Tray of 100)
單位
NPN 15 A 60 V TO-204 Through Hole 115 W 5 Single 100 V 7 V 1 MHz 2 1 -
RS庫存編號 170-7962
製造零件編號BC857C,235
BrandNexperia
HK$0.16
個 (在毎卷:10000)
單位
PNP 100 mA -45 V SOT-23 Surface Mount 250 mW 420 Single -50 V -5 V - 3 1 AEC-Q101
RS庫存編號 166-1312
製造零件編號BC857C,215
BrandNexperia
HK$0.184
個 (在毎卷:3000)
單位
PNP 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 420 Single 50 V 5 V 100 MHz 3 1 -
RS庫存編號 112-5475
製造零件編號PZT2907A,115
BrandNexperia
HK$3.774
/個 (每包:5個)
單位
PNP 600 mA 60 V SOT-223 (SC-73) Surface Mount 1.15 W 50 Single 60 V 5 V 200 MHz 4 1 -
RS庫存編號 170-4153
製造零件編號BC338-16 A1
HK$0.405
Each (On a Tape of 4000)
單位
NPN 800 mA 25 V TO-92 Through Hole 625 mW 100 Single 30 V 5 V - 3 1 -
RS庫存編號 121-9550
製造零件編號DSS4240T-7
HK$0.528
個 (在毎卷:3000)
單位
NPN 2 A 40 V SOT-23 Surface Mount 600 mW 150 Single 40 V 5 V 100 MHz 3 1 -
RS庫存編號 806-4475
製造零件編號KSC1845FTA
HK$0.685
/個 (每包:200個)
單位
NPN 50 mA 120 V TO-92 Through Hole 500 mW 150 Single 120 V 5 V 110 MHz 3 1 -
RS庫存編號 170-4155
製造零件編號BC546B A1
HK$0.362
Each (On a Tape of 4000)
單位
NPN 100 mA 65 V TO-92 Through Hole 500 mW 200 Single 80 V 6 V - 3 1 -
RS庫存編號 215-6600
製造零件編號FZT849TA
HK$8.52
單位
NPN 7 A 30 V SOT-223 Surface Mount 3 W 30 Single 80 V 6 V 100 MHz 3 + Tab 1 -
RS庫存編號 803-1131
製造零件編號BC556BTFR
HK$0.578
/個 (每包:200個)
單位
PNP 100 mA 65 V TO-92 Through Hole 500 mW 110 Single -80 V -5 V 10 MHz 3 1 -
RS庫存編號 761-9831
製造零件編號BC556BTA
HK$0.503
/個 (每包:100個)
單位
PNP 100 mA 65 V TO-92 Through Hole 500 mW 110 Single -80 V -5 V 150 MHz 3 1 -
RS庫存編號 801-5580
製造零件編號PBHV9115X,115
BrandNexperia
HK$2.95
/個 (每包:10個)
單位
PNP 1 A 150 V SOT-89 Surface Mount 1.5 W 10 Single -200 V -6 V 100 MHz 3 1 -
RS庫存編號 739-0410
製造零件編號MMBT2907A
HK$2.288
/個 (每包:10個)
單位
PNP 800 mA 60 V SOT-23 Surface Mount 350 mW 50 Single 60 V 5 V - 3 1 -
RS庫存編號 464-158
製造零件編號MJE15033G
HK$13.366
/個 (每包:5個)
單位
PNP 8 A 250 V TO-220AB Through Hole 50 W 10 Single 250 V 5 V 30 MHz 3 1 -
RS庫存編號 146-2100
製造零件編號BC556BTFR
HK$0.311
個 (在毎卷:2000)
單位
PNP 100 mA 65 V TO-92 Through Hole 500 mW 110 Single -80 V -5 V 10 MHz 3 1 -
RS庫存編號 803-1116
製造零件編號BC550CBU
HK$0.528
/個 (每包:200個)
單位
NPN 100 mA 45 V TO-92 Through Hole 500 mW 110 Single 50 V 5 V 1 MHz 3 1 -
RS庫存編號 486-4561
製造零件編號MJE2955T
HK$5.41
/個 (每包:5個)
單位
PNP 10 A 60 V TO-220 Through Hole 75 W 5 Single 70 V 5 V 2 MHz 3 1 -
RS庫存編號 807-5099
製造零件編號BCP54
HK$3.363
/個 (每包:50個)
單位
NPN 1.5 A 45 V SOT-223 Surface Mount 1.5 W 150 Single 45 V 5 V - 3 + Tab 1 -