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. 145-3033
Mfr. Part No.MMUN2212LT1G
HK$0.134
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 22 kΩ - Surface Mount SOT-23 3 60 - Single 0.25 V -
RS Stock No. 179-1024
Mfr. Part No.PDTC115ET,215
BrandNexperia
HK$0.154
Each (On a Reel of 3000)
units
NPN 1 20 mA 50 V 100 kΩ - Surface Mount SOT-23 (TO-236AB) 3 80 - Single 0.15 V 10 V
RS Stock No. 168-3464
Mfr. Part No.DRC9114Y0L
BrandPanasonic
HK$0.638
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 10 kΩ - Surface Mount SSMini3 F3 B 3 80 125 mW Single 0.25 V -
New
RS Stock No. 183-4850
Mfr. Part No.DTD543ZETL
BrandROHM
HK$0.889
Each (In a Pack of 60)
units
NPN 1 500 mA - 4.7 kΩ 47kΩ Surface Mount SOT-416 3 140 150 mW Single - -
RS Stock No. 166-3653
Mfr. Part No.FJN3303RTA
HK$0.204
Each (On a Tape of 2000)
units
NPN 1 100 mA 50 V 22 kΩ - Through Hole TO-92 3 56 300 mW Single 0.3 V 10 V
RS Stock No. 124-6557
Mfr. Part No.DTC143EKAT146
BrandROHM
HK$0.329
Each (In a Pack of 150)
units
NPN 1 100 mA 50 V 4.7 kΩ 4.7kΩ Surface Mount SOT-346 3 30 200 mW - - -
RS Stock No. 131-4624
Mfr. Part No.DTA123JCAT116
BrandROHM
HK$0.342
Each (In a Pack of 100)
units
PNP 1 100 mA 50 V 2.2 kΩ 47kΩ Surface Mount SOT-23 3 80 200 mW Common Emitter - 50 V
RS Stock No. 178-5920
Mfr. Part No.DTA124EU3T106
BrandROHM
HK$0.32
Each (In a Pack of 200)
units
PNP 1 -100 mA -50 V 22 kΩ 22kΩ Surface Mount SOT-323 3 56 200 mW Single - -
New
RS Stock No. 183-5357
Mfr. Part No.UMG8NTR
BrandROHM
HK$0.699
Each (In a Pack of 100)
units
NPN 2 100 mA - 4.7 kΩ 47kΩ Surface Mount SOT-353 5 80 150 mW Common Emitter - -
New
RS Stock No. 183-4764
Mfr. Part No.DTC144VCAT116
BrandROHM
HK$0.445
Each (In a Pack of 200)
units
NPN 1 100 mA - 47 kΩ 10kΩ Surface Mount SOT-23 3 33 350 mW Single - -
RS Stock No. 518-2731
Mfr. Part No.PDTC114TM,315
BrandNexperia
HK$0.598
Each (In a Pack of 50)
units
NPN 1 100 mA 50 V 10 kΩ - Surface Mount SC-101 3 200 - Single 0.15 V 5 V
New
RS Stock No. 183-4670
Mfr. Part No.DTC115TCAT116
BrandROHM
HK$0.254
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 100 kΩ - Surface Mount SOT-23 3 100 350 mW Single 300 mV 5 V
RS Stock No. 168-3376
Mfr. Part No.DRC3144E0L
BrandPanasonic
HK$0.407
Each (On a Reel of 10000)
units
NPN 1 100 mA 50 V 47 kΩ - Surface Mount SSSMini3 F2 B 3 80 - Single 0.25 V 6 V
New
RS Stock No. 186-7163
Mfr. Part No.J176-D74Z
HK$1.041
Each (On a Tape of 3000)
units
- 1 - - - - Through Hole TO-92 3 - 350 mW Single - -
RS Stock No. 124-6529
Mfr. Part No.DTA143EKAT146
BrandROHM
HK$0.358
Each (In a Pack of 150)
units
PNP 1 100 mA 50 V 4.7 kΩ 4.7kΩ Surface Mount SOT-346 3 30 200 mW - - -
RS Stock No. 801-0109
Mfr. Part No.DTC124EET1G
HK$0.352
Each (On a Tape of 250)
units
NPN 1 100 mA 50 V 22 kΩ - Surface Mount SOT-416 (SC-75) 3 60 300 mW Single 0.25 V 6 V
RS Stock No. 168-3507
Mfr. Part No.DRC2144T0L
BrandPanasonic
HK$0.511
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 47 kΩ - Surface Mount Mini3 G3 B 3 160 200 mW Single 0.25 V -
RS Stock No. 133-2969
Mfr. Part No.DTD513ZETL
BrandROHM
HK$1.034
Each (In a Pack of 50)
units
NPN 1 500 mA 12 V 1 kΩ 10kΩ Surface Mount SOT-416 (SC-75A) 3 140 150 mW Single - 12 V
RS Stock No. 807-0959
Mfr. Part No.FJV3115RMTF
HK$0.41
Each (In a Pack of 200)
units
NPN 1 100 mA 50 V 2.2 kΩ - Surface Mount SOT-23 3 33 200 mW Single 0.3 V 10 V
RS Stock No. 751-3865
Mfr. Part No.DCX114YU-7-F
HK$0.827
Each (In a Pack of 100)
units
NPN + PNP 2 70 mA 50 V 10 kΩ - Surface Mount SOT-363 (SC-88) 6 68 100 mW Isolated - -
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