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. 178-532
Mfr. Part No.DTA123EKAT146
BrandROHM
SGD0.114
Each (In a Pack of 10)
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PNP 1 100 mA - 2.2 kΩ - Surface Mount SMT 3 20 - Single - -
RS Stock No. 781-5297
Mfr. Part No.SMMUN2211LT3G
SGD0.091
Each (In a Pack of 50)
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NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 35 400 mW Single 0.25 V -
RS Stock No. 163-1183
Mfr. Part No.SMMUN2211LT3G
SGD0.08
Each (On a Reel of 10000)
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NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 35 400 mW Single 0.25 V -
RS Stock No. 145-4738
Mfr. Part No.SMMUN2211LT1G
SGD0.075
Each (On a Reel of 3000)
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NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 35 400 mW Single 0.25 V -
RS Stock No. 781-5294
Mfr. Part No.SMMUN2214LT1G
SGD0.276
Each (In a Pack of 50)
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NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 80 400 mW Single 0.25 V -
RS Stock No. 781-5288
Mfr. Part No.SMMUN2211LT1G
SGD0.221
Each (In a Pack of 50)
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NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 35 400 mW Single 0.25 V -
RS Stock No. 805-4474
Mfr. Part No.SMUN5212T1G
SGD0.106
Each (On a Tape of 100)
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NPN 1 100 mA 50 V 22 kΩ - Surface Mount SOT-323 (SC-70) 3 60 310 mW Single 0.25 V -
RS Stock No. 826-8513
Mfr. Part No.FMA5AT148
BrandROHM
SGD0.191
Each (In a Pack of 60)
units
PNP 2 100 mA 50 V 2.2 kΩ 47kΩ Surface Mount SC-74A 5 80 300 mW Common Emitter - 5 V
RS Stock No. 145-5239
Mfr. Part No.SMUN5212T1G
SGD0.063
Each (On a Reel of 3000)
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NPN 1 100 mA 50 V 22 kΩ - Surface Mount SOT-323 (SC-70) 3 60 310 mW Single 0.25 V -
RS Stock No. 145-3907
Mfr. Part No.SMMUN2214LT1G
SGD0.075
Each (On a Reel of 3000)
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NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 80 400 mW Single 0.25 V -
RS Stock No. 177-7997
Mfr. Part No.UMH11NTN
BrandROHM
SGD0.088
Each (On a Reel of 3000)
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NPN 2 100 mA - 10 kΩ 10kΩ Surface Mount UMT 6 30 - Isolated - -
RS Stock No. 373-3236
Mfr. Part No.UMH11NTN
BrandROHM
SGD0.204
Each (In a Pack of 10)
units
NPN 2 100 mA - 10 kΩ 10kΩ Surface Mount UMT 6 30 - Isolated - -
RS Stock No. 246-1902
Mfr. Part No.DTB123YKT146
BrandROHM
SGD0.192
Each (In a Pack of 5)
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PNP 1 500 mA - 2.2 kΩ 10kΩ Surface Mount SMT 3 56 - Single - -
RS Stock No. 124-6530
Mfr. Part No.DTA144EKAT146
BrandROHM
SGD0.062
Each (In a Pack of 150)
units
PNP 1 100 mA 50 V 47 kΩ 47kΩ Surface Mount SOT-346 3 68 200 mW - - -
RS Stock No. 911-4751
Mfr. Part No.BCR135E6327HTSA1
BrandInfineon
SGD0.033
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 3 70 200 mW Single 0.3 V 6 V
RS Stock No. 170-2424
Mfr. Part No.DTA144EKAT146
BrandROHM
SGD0.043
Each (On a Reel of 3000)
units
PNP 1 100 mA - 47 kΩ 47kΩ Surface Mount SMT 3 68 - Single - -
RS Stock No. 791-6034
Mfr. Part No.DTC114EET1G
SGD0.054
Each (On a Tape of 200)
units
NPN 1 100 mA 50 V 10 kΩ - Surface Mount SOT-416 (SC-75) 3 35 338 mW Single 0.25 V -
RS Stock No. 752-7990
Mfr. Part No.BCR116WH6327XTSA1
BrandInfineon
SGD0.032
Each (In a Pack of 100)
units
NPN 1 100 mA 50 V 4.7 kΩ - Surface Mount SOT-323 (SC-70) 3 70 250 mW Single 0.3 V -
RS Stock No. 518-2905
Mfr. Part No.PDTC123JT,215
BrandNexperia
SGD0.034
Each (In a Pack of 50)
units
NPN 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. 166-0267
Mfr. Part No.PDTC123JT,215
BrandNexperia
SGD0.021
Each (On a Reel of 12000)
units
NPN 1 100 mA 50 V 2.2 kΩ - Surface Mount SOT-23 (TO-236AB) 3 100 - Single 0.1 V 10 V
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