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. 792-1061
Mfr. Part No.PDTB123YT,215
BrandNexperia
HK$0.996
Each (On a Tape of 100)
units
PNP 1 - 50 V 2.2 kΩ - Surface Mount SOT-23 3 70 250 mW Single 0.3 V 5 V
RS Stock No. 179-1001
Mfr. Part No.PBLS4005Y,115
BrandNexperia
HK$0.67
Each (On a Reel of 3000)
units
NPN + PNP 2 100 mA, 500 mA 40 V, 50 V 47 kΩ - Surface Mount UMT 6 40 - N+P Loadswitch 0.15 V, 0.35 V 6 V, 10 V
RS Stock No. 168-9639
Mfr. Part No.PEMH13,115
BrandNexperia
HK$0.513
Each (On a Reel of 4000)
units
NPN 2 100 mA 50 V 4.7 kΩ - Surface Mount SSMini 6 100 - Isolated 0.1 V 10 V
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. 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. 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
RS Stock No. 179-1030
Mfr. Part No.PDTC143TT,215
BrandNexperia
HK$0.238
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 4.7 kΩ - Surface Mount SOT-23 (TO-236AB) 3 200 - Single 0.1 V 5 V
RS Stock No. 166-0365
Mfr. Part No.PDTC144EU,115
BrandNexperia
HK$0.238
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 47 kΩ - Surface Mount UMT 3 80 - Single 0.15 V 10 V
RS Stock No. 179-1049
Mfr. Part No.PUMD9,115
BrandNexperia
HK$0.282
Each (On a Reel of 3000)
units
NPN + PNP 2 100 mA 50 V 10 kΩ - Surface Mount UMT 6 100 - Isolated 0.1 V 10 V
RS Stock No. 179-1011
Mfr. Part No.PDTA123JT,215
BrandNexperia
HK$0.238
Each (On a Reel of 3000)
units
PNP 1 100 mA 50 V 2.2 kΩ - Surface Mount SOT-23 (TO-236AB) 3 100 - Single 0.1 V 10 V
RS Stock No. 518-3627
Mfr. Part No.PUMB2,115
BrandNexperia
HK$1.463
Each (In a Pack of 50)
units
PNP 2 100 mA 50 V 47 kΩ - Surface Mount UMT 6 80 - Isolated 0.15 V 5 V
RS Stock No. 166-0601
Mfr. Part No.PEMD10,115
BrandNexperia
HK$0.513
Each (On a Reel of 4000)
units
NPN + PNP 2 100 mA 50 V 2.2 kΩ - Surface Mount SSMini 6 100 - Isolated 0.1 V 10 V
RS Stock No. 179-1025
Mfr. Part No.PDTC115TT,215
BrandNexperia
HK$0.24
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 100 kΩ - Surface Mount SOT-23 (TO-236AB) 3 100 - Single 0.15 V 5 V
RS Stock No. 179-1023
Mfr. Part No.PDTC114TU,115
BrandNexperia
HK$0.238
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 10 kΩ - Surface Mount UMT 3 200 - Single 0.15 V 5 V
RS Stock No. 518-2488
Mfr. Part No.PDTA124XU,115
BrandNexperia
HK$1.30
Each (In a Pack of 50)
units
PNP 1 100 mA 50 V 22 kΩ - Surface Mount UMT 3 80 - Single 0.15 V 7 V
RS Stock No. 518-2545
Mfr. Part No.PDTA143XT,215
BrandNexperia
HK$1.30
Each (In a Pack of 50)
units
PNP 1 100 mA 50 V 4.7 kΩ - Surface Mount SOT-23 (TO-236AB) 3 50 - Single 0.15 V 7 V
RS Stock No. 518-3964
Mfr. Part No.PUMH4,115
BrandNexperia
HK$1.463
Each (In a Pack of 50)
units
NPN 2 100 mA 50 V 10 kΩ - Surface Mount UMT 6 200 - Isolated 0.15 V 5 V
RS Stock No. 153-1980
Mfr. Part No.PEMD48,115
BrandNexperia
HK$0.513
Each (On a Reel of 4000)
units
NPN + PNP 2 100 mA 50 V 2.2 (PNP) kΩ, 47 (NPN) kΩ - Surface Mount SOT-666 6 80 200 mW - 0.15 V -5 (PNP) V, 10 (NPN) V
RS Stock No. 166-0358
Mfr. Part No.PBLS1503Y,115
BrandNexperia
HK$0.679
Each (On a Reel of 3000)
units
NPN + PNP 2 500 mA 15 V, 50 V 10 kΩ - Surface Mount UMT 6 30 - N+P Loadswitch 0.15 V -
RS Stock No. 153-2828
Mfr. Part No.PEMD30,115
BrandNexperia
HK$0.513
Each (On a Reel of 4000)
units
NPN + PNP 2 100 mA 50 V 2.2 kΩ - Surface Mount SOT-666 6 30 200 mW - 0.15 V 5 V