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$0.463
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$0.269
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. 122-3243
Mfr. Part No.DDTC143ZUA-7-F
HK$0.254
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 4.7 kΩ - Surface Mount SOT-323 (SC-70) 3 80 200 mW Single - 30 V
RS Stock No. 146-4672
Mfr. Part No.ADTA144EUAQ-13
HK$0.257
Each (On a Reel of 10000)
units
PNP 1 100 mA 50 V 47 kΩ 47kΩ Surface Mount SOT-323 (SC-70) 3 68 330 mW Single - -
RS Stock No. 146-4673
Mfr. Part No.ADTA144EUAQ-7
HK$0.288
Each (On a Reel of 3000)
units
PNP 1 100 mA 50 V 47 kΩ 47kΩ Surface Mount SOT-323 (SC-70) 3 68 330 mW Single - -
RS Stock No. 822-2312
Mfr. Part No.DCX114EU-7-F
HK$0.36
Each (In a Pack of 200)
units
NPN + PNP 2 100 mA 50 V 10 kΩ - Surface Mount SOT-363 (SC-88) 6 30 200 mW Isolated 0.3 V 5 V
RS Stock No. 823-2832
Mfr. Part No.DDTA114ECA-7-F
HK$0.312
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. 146-4705
Mfr. Part No.ADA114YUQ-13
HK$0.518
Each (On a Reel of 10000)
units
PNP 2 100 mA 50 V 10 kΩ 47kΩ Surface Mount SOT-363 (SC-88) 6 68 270 mW - - -
RS Stock No. 823-2882
Mfr. Part No.DDTC143ZCA-7-F
HK$0.32
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. 146-0836
Mfr. Part No.DDTC114YCA-7-F
HK$0.184
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. 146-4771
Mfr. Part No.ADTC144EUAQ-13
HK$0.44
Each (In a Pack of 100)
units
NPN 1 100 mA 50 V 47 kΩ 47kΩ Surface Mount SOT-323 (SC-70) 3 80 330 mW Single - -
RS Stock No. 823-2842
Mfr. Part No.DDTC113TCA-7-F
HK$0.371
Each (In a Pack of 200)
units
NPN 1 100 mA 50 V 1 kΩ - Surface Mount SOT-23 3 100 200 mW Single 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. 165-8595
Mfr. Part No.DDTA123JCA-7-F
HK$0.173
Each (On a Reel of 3000)
units
PNP 1 100 mA 50 V 2.2 kΩ - Surface Mount SOT-23 3 80 200 mW Single - 12 V
RS Stock No. 823-2873
Mfr. Part No.DDTC124ECA-7-F
HK$0.371
Each (In a Pack of 200)
units
NPN 1 100 mA 50 V 22 kΩ - Surface Mount SOT-23 3 56 200 mW Single - 40 V
RS Stock No. 122-3240
Mfr. Part No.DDTA114YCA-7-F
HK$0.211
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$0.389
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
RS Stock No. 823-2851
Mfr. Part No.DDTC114EUA-7-F
HK$0.454
Each (In a Pack of 200)
units
NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-323 (SC-70) 3 30 200 mW Single - 40 V
RS Stock No. 165-8599
Mfr. Part No.DDTC124ECA-7-F
HK$0.173
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. 823-2886
Mfr. Part No.DDTC143ZUA-7-F
HK$0.438
Each (In a Pack of 200)
units
NPN 1 100 mA 50 V 4.7 kΩ - Surface Mount SOT-323 (SC-70) 3 80 200 mW Single - 30 V