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 172-4618
製造零件編號NSVF4020SG4T1G
HK$3.90
/個 (每包:50個)
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NPN 150 mA 8 V MCPH Surface Mount 400 mW 60 Single 15 V 2 V 16 GHz 4 1 AEC-Q101
RS庫存編號 168-1964
製造零件編號DTA124EUBTL
BrandROHM
HK$0.495
/個 (每包:200個)
單位
PNP 100 mA - SOT-323FL Surface Mount 200 mW 56 Single - - 250 MHz 3 1 -
RS庫存編號 151-3069
製造零件編號PHPT61010NYX
BrandNexperia
HK$2.782
個 (在毎卷:1500)
單位
NPN 10 A 100 V LFPAK56, SOT669 Surface Mount 25 W 25 Single 100 V 7 V 145 MHz 4 + Tab 1 AEC-Q101
RS庫存編號 145-4169
製造零件編號2SA1552S-TL-H
HK$2.195
個 (在毎卷:700)
單位
PNP 1.5 A 160 V TP-FA Surface Mount 15 W 80 Single -180 V -6 V 120 MHz 3 1 -
RS庫存編號 145-5438
製造零件編號FJA4210OTU
HK$18.365
毎管:30 個
單位
PNP 10 A 140 V TO-3P Through Hole 100 W 80 Single -200 V -6 V 30 MHz 3 1 -
RS庫存編號 166-2820
製造零件編號PZTA56
HK$0.89
個 (在毎卷:4000)
單位
PNP 500 mA 80 V SOT-223 Surface Mount 1 W 100 Single -80 V -4 V 100 MHz 3 + Tab 1 -
RS庫存編號 171-5585
製造零件編號2SAR586D3TL1
BrandROHM
HK$6.713
/個 (每包:10個)
單位
PNP 5 A -80 (Minimum) V TO-252 Surface Mount 10 W 120 Single -80 (Minimum) V -6 (Minimum) V 200 MHz 3 1 -
RS庫存編號 162-9192
製造零件編號NSS40302PDR2G
HK$2.23
個 (在毎卷:2500)
單位
NPN + PNP 3 A 40 V SOIC Surface Mount 783 mW 180 Isolated -40 V, 40 V -7 V, 6 V 100 MHz 8 2 -
RS庫存編號 816-0649
製造零件編號PBHV8118T,215
BrandNexperia
HK$2.489
/個 (每包:30個)
單位
NPN 1 A 180 V SOT-23 Surface Mount 300 mW 100 Single 400 V 6 V 100 MHz 3 1 -
RS庫存編號 166-3109
製造零件編號MMBT3904T
HK$0.319
個 (在毎卷:3000)
單位
NPN 200 mA 40 V SOT-523 (SC-89) Surface Mount 250 mW 30 Single 60 V 6 V 100 MHz 3 1 -
RS庫存編號 922-7608
製造零件編號FZT1149ATA
HK$3.294
個 (在毎卷:1000)
單位
PNP 4 A 25 V SOT-223 Surface Mount 2.5 W 115 Single 30 V 5 V 135 MHz 3 + Tab 1 -
RS庫存編號 124-9958
製造零件編號BC817-25LT3G
HK$0.168
個 (在毎卷:10000)
單位
NPN 500 mA 45 V SOT-23 Surface Mount 300 mW 40 Single 50 V 5 V 100 MHz 3 1 -
RS庫存編號 920-9887
製造零件編號NST65010MW6T1G
HK$1.039
/個 (每包:100個)
單位
PNP 100 mA 65 V SOT-363 (SC-88) Surface Mount 380 mW 220 Isolated -80 V -5 V 100 MHz 6 2 -
RS庫存編號 168-2075
製造零件編號DTC143XUAT106
BrandROHM
HK$0.495
/個 (每包:200個)
單位
NPN 100 mA - SOT-323 Surface Mount 200 mW 30 Single - - 250 MHz 3 1 -
RS庫存編號 800-9386
製造零件編號50A02MH-TL-E
HK$2.283
/個 (每包:50個)
單位
PNP 500 mA 50 V MCPH Surface Mount 600 mW 200 Single -50 V -5 V 690 MHz 3 1 -
RS庫存編號 806-2740
製造零件編號KSB1017YTU
HK$6.85
毎管:50 個
單位
PNP 4 A 80 V TO-220F Through Hole 25 W 15 Single -80 V -5 V 1 MHz 3 1 -
RS庫存編號 145-9624
製造零件編號BC857BWH6327XTSA1
BrandInfineon
HK$0.195
個 (在毎卷:3000)
單位
PNP 100 mA 45 V SOT-323 (SC-70) Surface Mount 250 mW 220 Single 50 V 5 V 250 MHz 3 1 -
RS庫存編號 857-8740
製造零件編號SMBT3906SH6327XTSA1
BrandInfineon
HK$0.445
個 (在毎卷:3000)
單位
PNP 200 mA 40 V SOT-363 (SC-88) Surface Mount 250 mW 30 Single -40 V -6 V 250 (Min.) MHz 6 1 -
RS庫存編號 545-2765
製造零件編號BC847CLT1G
HK$0.151
個 (在毎卷:3000)
單位
NPN 100 mA 45 V SOT-23 Surface Mount 300 mW 420 Single 50 V 6 V 100 MHz 3 1 -
RS庫存編號 165-7552
製造零件編號BCW67CE6327HTSA1
BrandInfineon
HK$0.229
個 (在毎卷:3000)
單位
PNP 800 mA 32 V SOT-23 Surface Mount 330 mW 80 Single 45 V 5 V 200 MHz 3 1 -