Digital Transistors

Digital transistors are discrete semiconductors that are used to amplify electronic signals and electrical power. They take in a tiny electric current at one end of your circuit (an input current) and produce a much bigger electric current at the other end (an output current). In other words, they're a kind of current booster.

How do digital transistors work?

Digital transistors are made of a semiconductor material, usually silicon, which conducts the current (or electricity) with little resistance. They also tend to have at least three terminals for easy connection to an external circuit.

They can also work asswitches.A tiny electric current flowing through one part of a transistor can make a much bigger current flow through another part of it. In other words, the small current can switch on the larger one.

The benefits of using a digital transistor include:

  • a reduction in system cost
  • simplifies your circuit design
  • reduces circuit board space
  • reduces component count

Applications for digital transistors

Digital transistors can be used in several applications including:

  • Control of IC inputs
  • Automotive applications
  • Switching loads
  • Inverter circuits
  • Interface circuits
  • Driver circuits

...
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Description Price Transistor Type Number of Elements per Chip Maximum Continuous Collector Current Maximum Collector Emitter Voltage Typical Input Resistor Base-Emitter Resistor Mounting Type Package Type Pin Count Minimum DC Current Gain Maximum Power Dissipation Transistor Configuration Maximum Collector Emitter Saturation Voltage Maximum Emitter Base Voltage
RS Stock No. 710-6102
Mfr. Part No.DMG264120R
BrandPanasonic
HK$4.89
Each (In a Pack of 20)
units
NPN + PNP 2 500 mA 50 V 4.7 kΩ - Surface Mount Mini6 G4 B 6 50 300 mW Isolated 0.25 V -
RS Stock No. 165-8602
Mfr. Part No.DDTC144EUA-7-F
HK$0.308
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 47 kΩ - Surface Mount SOT-323 (SC-70) 3 68 200 mW Single - 40 V
RS Stock No. 186-7436
Mfr. Part No.TIP101G
HK$6.021
Each (In a Tube of 50)
units
NPN 1 8 A 80 V dc - - Through Hole TO-220 3 200 80 W Single 2.5 V dc 5 V dc
RS Stock No. 166-0025
Mfr. Part No.PIMC31,115
BrandNexperia
HK$0.797
Each (On a Reel of 3000)
units
NPN + PNP 2 500 mA 50 V 1 kΩ - Surface Mount SOT-457 (SC-74) 6 70 420 mW Isolated 0.3 V 5 V
RS Stock No. 178-5940
Mfr. Part No.DTD523YETL
BrandROHM
HK$2.34
Each (In a Pack of 50)
units
NPN 1 500 mA 12 V 2.2 kΩ 10kΩ Surface Mount SOT-416 3 140 150 mW Single - -
RS Stock No. 911-4763
Mfr. Part No.BCR22PNH6327XTSA1
BrandInfineon
HK$0.339
Each (On a Reel of 3000)
units
NPN + PNP 2 100 mA 50 V 22 kΩ - Surface Mount SOT-363 (SC-88) 6 50 250 mW Isolated 0.3 V -
RS Stock No. 373-3668
Mfr. Part No.FMA7AT148
BrandROHM
HK$2.85
Each (In a Pack of 10)
units
PNP 2 100 mA - 4.7 kΩ - Surface Mount SMT 5 30 - Common Emitter - -
RS Stock No. 186-8963
Mfr. Part No.SI3443DV
HK$3.246
Each (In a Pack of 25)
units
- 1 - - - - Surface Mount TSOT-23 6 - 1.6 W - - -
RS Stock No. 518-2882
Mfr. Part No.PDTC123EU,115
BrandNexperia
HK$1.37
Each (In a Pack of 50)
units
NPN 1 100 mA 50 V 2.2 kΩ - Surface Mount UMT 3 30 - Single 0.15 V 10 V
RS Stock No. 168-3708
Mfr. Part No.DMA961040R
BrandPanasonic
HK$0.887
Each (On a Reel of 8000)
units
PNP 2 100 mA 50 V 10 kΩ - Surface Mount SSMini5 F4 B 5 80 125 mW Common Emitter 0.25 V -
RS Stock No. 710-6146
Mfr. Part No.DRC2523E0L
BrandPanasonic
HK$3.46
Each (In a Pack of 20)
units
NPN 1 500 mA 50 V 2.2 kΩ - Surface Mount Mini3 G3 B 3 40 200 mW Single 0.25 V -
RS Stock No. 186-7212
Mfr. Part No.SBC857BDW1T1G
HK$0.29
Each (On a Reel of 3000)
units
NPN + PNP 2 100 mA 30 V - - Surface Mount SOT-363 6 200 380 mW - 0.6 V 6 V
RS Stock No. 183-4982
Mfr. Part No.DTC014TEBTL
BrandROHM
HK$0.318
Each (In a Pack of 300)
units
NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-416FL 3 100 150 mW Single 150 mV 5 V
RS Stock No. 823-2836
Mfr. Part No.DDTA114EUA-7-F
HK$0.599
Each (In a Pack of 200)
units
PNP 1 100 mA 50 V 10 kΩ - Surface Mount SOT-323 (SC-70) 3 30 200 mW Single - 40 V
RS Stock No. 186-7139
Mfr. Part No.BS170-D26Z
HK$0.777
Each (On a Reel of 2000)
units
- 1 - - - - Through Hole TO-92 3 - 350 mW - - -
RS Stock No. 145-3274
Mfr. Part No.MMUN2214LT1G
HK$0.163
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 80 - Single 0.25 V -
RS Stock No. 134-9512
Mfr. Part No.NSVMUN531335DW1T1G
HK$0.864
Each (On a Reel of 3000)
units
NPN + PNP 2 - 50 V - - Surface Mount SOT-363 (SC-88) 6 80 385 mW - 0.25 V -
RS Stock No. 186-8019
Mfr. Part No.MJB45H11G
HK$8.724
Each (In a Pack of 10)
units
PNP 1 10 A 80 V dc - - Surface Mount D2PAK 2 + Tab 40 50 W Single 1 V dc 5 V dc
RS Stock No. 146-7037
Mfr. Part No.DTA044TMT2L
BrandROHM
HK$0.222
Each (On a Reel of 8000)
units
PNP 1 -60 mA 50 V 47 kΩ - Surface Mount SOT-723 3 100 150 mW Single -150 mV -5 V
RS Stock No. 166-1352
Mfr. Part No.PBRN113ET,215
BrandNexperia
HK$0.428
Each (On a Reel of 3000)
units
NPN 1 700 mA 40 V 1 kΩ - Surface Mount SOT-23 (TO-236AB) 3 40 - Single 1.15 V 10 V
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