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).

...
顯示內容 隱藏內容

篩選條件

正在檢視 261 - 280,共 4641 項產品
Results per page
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 903-4295
製造零件編號KSA1220AYS
HK$3.604
/個 (每包:25個)
單位
PNP 1.2 A 160 V TO-126 Through Hole 20 W 60 Single -160 V -5 V 1 MHz 3 1 -
RS庫存編號 890-2604
製造零件編號2SA1312-BL(TE85L,F
BrandToshiba
HK$2.064
/個 (每包:25個)
單位
PNP 100 mA 120 V SOT-346 (SC-59) Surface Mount 150 mW 200 Single -120 V -5 V - 3 1 -
RS庫存編號 168-6056
製造零件編號TIP35C
HK$10.522
毎管:30 個
單位
NPN 25 A 100 V TO-247 Through Hole 125 W 10 Single 100 V 5 V 3 MHz 3 1 -
RS庫存編號 485-9856
製造零件編號TIP50
HK$6.166
/個 (每包:5個)
單位
NPN 1 A 400 V TO-220 Through Hole 2 W 10 Single 500 V 5 V 10 MHz 3 1 -
RS庫存編號 823-1319
製造零件編號DZT5401-13
HK$2.51
/個 (每包:50個)
單位
PNP 600 mA 150 V SOT-223 Surface Mount 1 W 240 Single -160 V -5 V 300 MHz 3 + 1 (Tab) 1 -
RS庫存編號 823-2472
製造零件編號ZXTN2011ZTA
HK$5.116
/個 (每包:10個)
單位
NPN 4.5 A 100 V SOT-89 Surface Mount 1.5 W 300 Single 200 V 7 V 130 MHz 3 1 -
RS庫存編號 274-891
製造零件編號FMMT591TA
HK$3.248
/個 (每包:10個)
單位
PNP 1 A 40 V SOT-23 Surface Mount 500 mW 30 Single 40 V 5 V 150 MHz 3 1 -
RS庫存編號 251-3564
製造零件編號TIP35C
HK$16.67
單位
NPN 25 A 100 V TO-247 Through Hole 125 W 10 Single 100 V 5 V 3 MHz 3 1 -
RS庫存編號 124-5389
製造零件編號NJW0281G
HK$17.418
毎管:30 個
單位
NPN 15 A 250 V TO-3P Through Hole 150 W 75 Single 250 V dc 5 V 1 MHz 3 1 -
RS庫存編號 806-1306
製造零件編號PN2222ATFR
HK$0.727
/個 (每包:200個)
單位
NPN 1 A 40 V TO-92 Through Hole 625 mW 100 Single 75 V 6 V 100 MHz 3 1 -
RS庫存編號 436-7975
製造零件編號BC849CW,115
BrandNexperia
HK$1.35
/個 (每包:50個)
單位
NPN 100 mA 30 V UMT Surface Mount 200 mW 420 Single 30 V 5 V 100 MHz 3 1 -
RS庫存編號 102-4110
製造零件編號BD139-16
HK$1.488
毎管:50 個
單位
NPN 3 A 80 V SOT-32 Through Hole 1.25 W 100 Single 80 V 5 V - 3 1 -
RS庫存編號 770-5226
製造零件編號ZXTN4006ZTA
HK$2.442
/個 (每包:10個)
單位
NPN 1 A 200 V SOT-89 Surface Mount 1.5 W 60 Single 200 V 7 V - 3 1 -
RS庫存編號 166-1081
製造零件編號BCR505E6327HTSA1
BrandInfineon
HK$0.299
個 (在毎卷:3000)
單位
NPN 500 mA 50 V SOT-23 Surface Mount - 70 Single - - - 3 - -
RS庫存編號 862-4966
製造零件編號MJ14002G
HK$113.80
單位
NPN 60 A 80 V TO-204 Through Hole 300 W 5 Single 80 V 5 V - 2 1 -
RS庫存編號 761-6668
製造零件編號LP395Z/NOPB
HK$12.038
/個 (每包:5個)
單位
NPN 100 mA 36 V TO-92 Through Hole - - Single 36 V 36 V - 3 1 -
RS庫存編號 686-8076
製造零件編號BD139-10
HK$2.547
/個 (每包:20個)
單位
NPN 3 A 80 V SOT-32 Through Hole 1.25 W 63 Single 80 V 5 V - 3 1 -
RS庫存編號 826-8504
製造零件編號2SD2703TL
BrandROHM
HK$2.462
/個 (每包:40個)
單位
NPN 1 A 30 V TUMT Surface Mount 800 mW 270 Single 30 V 6 V 100 MHz 3 1 -
RS庫存編號 178-7091
製造零件編號BC847A,215
BrandNexperia
HK$0.132
個 (在毎卷:3000)
單位
- - - - - - - - - - - - - -
RS庫存編號 145-3126
製造零件編號TIP31AG
HK$1.86
毎管:50 個
單位
NPN 3 A 60 V TO-220AB Through Hole 40 W 10 Single 60 V 5 V 1 MHz 3 1 -