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 1 - 20,共 716 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 170-7962
製造零件編號BC857C,235
BrandNexperia
HK$0.113
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$0.10
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$3.514
/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 508-236
製造零件編號BC857C,215
BrandNexperia
HK$0.246
/個 (每包:100個)
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 438-4598
製造零件編號BCP53,115
BrandNexperia
HK$0.573
個 (在毎卷:1000)
單位
PNP 1 A 80 V SOT-223 (SC-73) Surface Mount 1 W 40 Single 100 V 5 V 145 MHz 4 1 -
RS庫存編號 166-1565
製造零件編號PZT2907A
BrandNexperia
HK$0.85
個 (在毎卷:1000)
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 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 178-7164
製造零件編號BCX70H,215
BrandNexperia
HK$0.222
個 (在毎卷:3000)
單位
- - - - - - - - - - - - - -
RS庫存編號 484-5194
製造零件編號BCX70H,215
BrandNexperia
HK$0.345
/個 (每包:50個)
單位
NPN 100 mA 45 V SOT-23 (TO-236AB) Surface Mount 250 mW 40 Single 45 V 5 V 250 MHz 3 1 -
RS庫存編號 165-9995
製造零件編號PBHV9115X,115
BrandNexperia
HK$1.885
個 (在毎卷:1000)
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 112-5469
製造零件編號PZT2222A,115
BrandNexperia
HK$3.85
單位
NPN 600 mA 40 V SOT-223 (SC-73) Surface Mount 1.15 W 35 Single 75 V 6 V 300 MHz 4 1 -
RS庫存編號 168-9634
製造零件編號PBSS4240Y,115
BrandNexperia
HK$0.933
個 (在毎卷:3000)
單位
NPN 2 A 40 V UMT Surface Mount 430 mW 150 Single 40 V 5 V 230 MHz 6 1 -
RS庫存編號 103-7565
製造零件編號PBSS4350T,215
BrandNexperia
HK$0.831
個 (在毎卷:3000)
單位
NPN 2 A 50 V SOT-23 (TO-236AB) Surface Mount 1.2 W 100 Single 50 V 5 V 100 MHz 3 1 -
RS庫存編號 518-1592
製造零件編號PBSS4240Y,115
BrandNexperia
HK$1.729
/個 (每包:10個)
單位
NPN 2 A 40 V UMT Surface Mount 430 mW 150 Single 40 V 5 V 230 MHz 6 1 -
RS庫存編號 166-1368
製造零件編號PMBT4401,215
BrandNexperia
HK$0.28
個 (在毎卷:3000)
單位
NPN 600 mA 40 V SOT-23 (TO-236AB) Surface Mount 250 mW 20 Single 60 V 6 V 250 MHz 3 1 -
RS庫存編號 518-1671
製造零件編號PBSS4350T,215
BrandNexperia
HK$2.323
/個 (每包:10個)
單位
NPN 2 A 50 V SOT-23 (TO-236AB) Surface Mount 1.2 W 100 Single 50 V 5 V 100 MHz 3 1 -
RS庫存編號 725-8616
製造零件編號MMBT3904,215
BrandNexperia
HK$0.467
/個 (每包:50個)
單位
NPN 200 mA 40 V SOT-23 (TO-236AB) Surface Mount 250 mW 30 Single 60 V 6 V - 3 1 -
RS庫存編號 179-1079
製造零件編號MMBT3904,215
BrandNexperia
HK$0.137
個 (在毎卷:3000)
單位
- - - - - - - - - - - - - -
RS庫存編號 510-015
製造零件編號PMBT4401,215
BrandNexperia
HK$0.682
/個 (每包:50個)
單位
NPN 600 mA 40 V SOT-23 (TO-236AB) Surface Mount 250 mW 20 Single 60 V 6 V 250 MHz 3 1 -
RS庫存編號 725-8540
製造零件編號BCX56-10,115
BrandNexperia
HK$1.967
Each (On a Tape of 50)
單位
NPN 1 A 80 V SOT-89 Surface Mount 1.35 W 63 Single 100 V 5 V 180 MHz 3 1 -