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. 131-4651
Mfr. Part No.DTC123JCAT116
BrandROHM
HK$0.342
Each (In a Pack of 100)
units
NPN 1 100 mA 50 V 2.2 kΩ 47kΩ Surface Mount SOT-23 3 80 200 mW Common Emitter - 50 V
New
RS Stock No. 183-4952
Mfr. Part No.DTA143TU3T106
BrandROHM
HK$0.381
Each (In a Pack of 200)
units
PNP 1 -100 mA -50 V 4.7 kΩ - Surface Mount SOT-323 3 100 200 mW Single -300 mV -5 V
RS Stock No. 178-6038
Mfr. Part No.DTA143EU3T106
BrandROHM
HK$0.32
Each (In a Pack of 200)
units
PNP 1 -100 mA -50 V 4.7 kΩ 4.7kΩ Surface Mount SOT-323 3 30 200 mW Single - -
RS Stock No. 145-4127
Mfr. Part No.MMUN2241LT1G
HK$0.225
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 100 kΩ - Surface Mount SOT-23 3 160 400 mW Single 0.25 V -
RS Stock No. 756-2741
Mfr. Part No.RN4987(TE85L,F)
BrandToshiba
HK$1.75
Each (In a Pack of 10)
units
NPN + PNP 2 -100 (PNP) mA, 100 (NPN) mA -50 (PNP) V, 50 (NPN) V 10 kΩ - Surface Mount US 6 80 200 mW Isolated -0.3 (PNP) V, 0.3 (NPN) V -6 (PNP) V, 6 (NPN) V
RS Stock No. 133-2968
Mfr. Part No.DTC144ECAT116
BrandROHM
HK$0.366
Each (In a Pack of 100)
units
NPN 1 100 mA 50 V 47 kΩ 47kΩ Surface Mount SOT-23 3 68 200 mW Single - 50 V
RS Stock No. 145-4738
Mfr. Part No.SMMUN2211LT1G
HK$0.421
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 35 400 mW Single 0.25 V -
New
RS Stock No. 186-8664
Mfr. Part No.KSC2383OTA
HK$2.829
Each (In a Pack of 25)
units
NPN 1 1 A 160 V - - Through Hole TO-92 3 60 900 mW Single 1.5 V 6 V
RS Stock No. 131-4657
Mfr. Part No.DTC143EEBTL
BrandROHM
HK$0.279
Each (In a Pack of 200)
units
NPN 1 100 mA 50 V 4.7 kΩ 4.7kΩ Surface Mount SOT-523 (SC-89) 3 30 150 mW Common Emitter - 50 V
RS Stock No. 124-6552
Mfr. Part No.DTC123JKAT146
BrandROHM
HK$0.358
Each (In a Pack of 150)
units
NPN 1 100 mA 50 V 2.2 kΩ 47kΩ Surface Mount SOT-346 3 80 200 mW - - -
New
RS Stock No. 186-7449
Mfr. Part No.TIP41AG
HK$4.78
Each (In a Tube of 50)
units
NPN 1 6 A 60 V dc - - Through Hole TO-220 3 15 65 W Single 1.5 V dc 5 V dc
RS Stock No. 518-3560
Mfr. Part No.PUMB13,115
BrandNexperia
HK$0.516
Each (In a Pack of 50)
units
NPN 2 100 mA 50 V 4.7 kΩ - Surface Mount UMT 6 100 - Isolated 0.1 V 10 V
New
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
New
RS Stock No. 183-5337
Mfr. Part No.UMG5NTR
BrandROHM
HK$0.699
Each (In a Pack of 100)
units
NPN 2 100 mA - 10 kΩ 47kΩ Surface Mount SOT-353 5 68 150 mW Common Emitter - -
New
RS Stock No. 183-4979
Mfr. Part No.EMD4T2R
BrandROHM
HK$0.699
Each (In a Pack of 80)
units
- 2 -100 (PNP) mA, 100 (NPN) mA - 47 kΩ 47kΩ Surface Mount SOT-563 5 68 150 mW - - -
New
RS Stock No. 186-8474
Mfr. Part No.NTZD3154NT5G
HK$2.568
Each (In a Pack of 25)
units
- 2 - - - - Surface Mount SOT-563 6 - 280 W - - -
New
RS Stock No. 186-7130
Mfr. Part No.BC63916-D74Z
HK$0.757
Each (On a Tape of 3000)
units
NPN 1 1 A 100 V - - Through Hole TO-92 3 25 830 mW Single 0.5 V 5 V
RS Stock No. 131-4652
Mfr. Part No.DTC123YCAT116
BrandROHM
HK$0.366
Each (In a Pack of 100)
units
NPN 1 100 mA 50 V 2.2 kΩ 10kΩ Surface Mount SOT-23 3 33 200 mW Common Emitter - 50 V
New
RS Stock No. 186-7348
Mfr. Part No.2SK3746-1E
HK$30.694
Each (In a Tube of 30)
units
- - - - - - - - - - - - - -
RS Stock No. 801-0115
Mfr. Part No.DTC143TM3T5G
HK$0.676
Each (In a Pack of 100)
units
NPN 1 100 mA 50 V 4.7 kΩ - Surface Mount SOT-723 3 160 600 mW Single 0.25 V 6 V
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