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. 751-3913
Mfr. Part No.DDTD113ZC-7-F
HK$0.731
Each (In a Pack of 100)
units
NPN 1 500 mA - 1 kΩ - Surface Mount SOT-23 3 56 200 mW Single - -
RS Stock No. 122-0916
Mfr. Part No.DDTD113ZC-7-F
HK$0.377
Each (On a Reel of 3000)
units
NPN 1 500 mA - 1 kΩ - Surface Mount SOT-23 3 56 200 mW Single - -
RS Stock No. 165-8599
Mfr. Part No.DDTC124ECA-7-F
HK$0.274
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 22 kΩ - Surface Mount SOT-23 3 56 200 mW Single - 40 V
RS Stock No. 822-2334
Mfr. Part No.DDC123JU-7-F
HK$0.958
Each (In a Pack of 200)
units
NPN 2 100 mA 50 V 2.2 kΩ - Surface Mount SOT-363 (SC-88) 6 80 200 mW Isolated 0.3 V 5 V
RS Stock No. 146-0444
Mfr. Part No.DDTA124ECA-7-F
HK$0.274
Each (On a Reel of 3000)
units
PNP 1 - - 22 kΩ - Surface Mount SOT-23 3 56 200 mW Single - -
RS Stock No. 165-8600
Mfr. Part No.DDTC143ZCA-7-F
HK$0.274
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 4.7 kΩ - Surface Mount SOT-23 3 80 200 mW Single - 30 V
RS Stock No. 122-2857
Mfr. Part No.DDC114YU-7-F
HK$0.556
Each (On a Reel of 3000)
units
NPN 2 100 mA 50 V 10 kΩ - Surface Mount SOT-363 (SC-88) 6 68 200 mW Isolated 0.3 V 5 V
RS Stock No. 751-3893
Mfr. Part No.DDTC114ECA-7-F
HK$0.503
Each (On a Tape of 250)
units
NPN 1 50 mA - 10 kΩ - Surface Mount SOT-23 3 30 200 mW Single - -
RS Stock No. 823-2832
Mfr. Part No.DDTA114ECA-7-F
HK$0.513
Each (In a Pack of 200)
units
PNP 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 30 200 mW Single - 40 V
RS Stock No. 146-0836
Mfr. Part No.DDTC114YCA-7-F
HK$0.274
Each (On a Reel of 3000)
units
NPN 1 70 mA - 10 kΩ - Surface Mount SOT-23 3 68 200 mW Single - -
RS Stock No. 165-8596
Mfr. Part No.DDTC114WCA-7-F
HK$0.274
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 24 200 mW Single - 30 V
RS Stock No. 146-4845
Mfr. Part No.ADTA144ECAQ-13
HK$0.488
Each (In a Pack of 100)
units
PNP 1 100 mA 50 V 47 kΩ 47kΩ Surface Mount SOT-23 3 68 310 mW Single - -
RS Stock No. 823-2882
Mfr. Part No.DDTC143ZCA-7-F
HK$0.528
Each (In a Pack of 200)
units
NPN 1 100 mA 50 V 4.7 kΩ - Surface Mount SOT-23 3 80 200 mW Single - 30 V
RS Stock No. 166-0426
Mfr. Part No.DCX114YU-7-F
HK$0.388
Each (On a Reel of 3000)
units
NPN + PNP 2 70 mA 50 V 10 kΩ - Surface Mount SOT-363 (SC-88) 6 68 100 mW Isolated - -
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. 822-2330
Mfr. Part No.DDC114YU-7-F
HK$0.958
Each (In a Pack of 100)
units
NPN 2 100 mA 50 V 10 kΩ - Surface Mount SOT-363 (SC-88) 6 68 200 mW Isolated 0.3 V 5 V
RS Stock No. 146-4674
Mfr. Part No.ADTC114EUAQ-13
HK$0.27
Each (On a Reel of 10000)
units
NPN 1 100 mA 50 V 10 kΩ 10kΩ Surface Mount SOT-323 (SC-70) 3 30 330 mW Single - -
RS Stock No. 823-2848
Mfr. Part No.DDTA123JCA-7-F
HK$0.513
Each (In a Pack of 200)
units
PNP 1 100 mA 50 V 2.2 kΩ - Surface Mount SOT-23 3 80 200 mW Single - 12 V
RS Stock No. 122-3240
Mfr. Part No.DDTA114YCA-7-F
HK$0.274
Each (On a Reel of 3000)
units
PNP 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 68 200 mW Single - 40 V
RS Stock No. 165-8617
Mfr. Part No.DDTD142JC-7-F
HK$0.411
Each (On a Reel of 3000)
units
NPN 1 500 mA 50 V 470 Ω - Surface Mount SOT-23 3 56 200 mW Single 0.3 V 6 V