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. 484-3441
Mfr. Part No.PDTA114ET,215
BrandNexperia
HK$1.274
Each (In a Pack of 50)
units
PNP 1 100 mA 50 V 10 kΩ - Surface Mount SOT-23 (TO-236AB) 3 30 - Single 0.15 V 10 V
RS Stock No. 168-9638
Mfr. Part No.PEMH11,115
BrandNexperia
HK$0.503
Each (On a Reel of 4000)
units
NPN 2 100 mA 50 V 10 kΩ - Surface Mount SSMini 6 30 - Isolated 0.15 V 10 V
RS Stock No. 165-8601
Mfr. Part No.DDTC143XCA-7-F
HK$0.269
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 4.7 kΩ - Surface Mount SOT-23 3 30 200 mW Single - 20 V
RS Stock No. 373-3624
Mfr. Part No.UMG11NTR
BrandROHM
HK$1.60
Each (In a Pack of 10)
units
NPN 2 100 mA - 2.2 kΩ - Surface Mount TUMT 5 80 - Common Emitter - -
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. 518-2220
Mfr. Part No.PDTA114TU,115
BrandNexperia
HK$1.274
Each (In a Pack of 50)
units
PNP 1 100 mA 50 V 10 kΩ - Surface Mount UMT 3 200 - Single 0.15 V 5 V
RS Stock No. 373-3848
Mfr. Part No.FMG8AT148
BrandROHM
HK$2.195
Each (In a Pack of 10)
units
NPN 2 100 mA - 4.7 kΩ - Surface Mount SMT 5 80 - Common Emitter - -
RS Stock No. 186-8123
Mfr. Part No.NCV8440ASTT1G
HK$7.58
Each (In a Pack of 10)
units
- 1 - - - - Surface Mount SOT-223 3 + Tab - 1.69 W - - -
RS Stock No. 146-7078
Mfr. Part No.DTD123YCT116
BrandROHM
HK$0.386
Each (On a Reel of 3000)
units
NPN 1 500 mA 50 V 2.2 kΩ 10kΩ Surface Mount SOT-23 3 56 200 mW Single - -
RS Stock No. 183-5094
Mfr. Part No.UMH2NTN
BrandROHM
HK$0.726
Each (On a Reel of 3000)
units
NPN 2 100 mA - 47 kΩ 47kΩ Surface Mount SOT-363 6 68 150 mW - - -
RS Stock No. 186-8089
Mfr. Part No.FJT44TF
HK$3.617
Each (In a Pack of 25)
units
NPN 1 300 mA 400 V - - Surface Mount SOT-223 3 + Tab 40 2 W Single 0.75 V 6 V
RS Stock No. 186-7389
Mfr. Part No.FDP18N50
HK$18.20
Each (In a Tube of 50)
units
- 1 - - - - Through Hole TO-220 3 - 235 W - - -
RS Stock No. 170-2434
Mfr. Part No.DTD114EKT146
BrandROHM
HK$0.847
Each (On a Reel of 3000)
units
NPN 1 500 mA - 10 kΩ 10kΩ Surface Mount SMT 3 56 - Single - -
RS Stock No. 168-9639
Mfr. Part No.PEMH13,115
BrandNexperia
HK$0.503
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. 165-8602
Mfr. Part No.DDTC144EUA-7-F
HK$0.302
Each (On a Reel of 3000)
units
NPN 1 100 mA 50 V 47 kΩ - Surface Mount SOT-323 (SC-70) 3 68 200 mW Single - 40 V
RS Stock No. 179-1018
Mfr. Part No.PDTA143XT,215
BrandNexperia
HK$0.235
Each (On a Reel of 3000)
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. 163-0976
Mfr. Part No.MMUN2133LT1G
HK$0.16
Each (On a Reel of 3000)
units
PNP 1 100 mA 50 V 4.7 kΩ - Surface Mount SOT-23 3 80 400 mW Single 0.25 V -
RS Stock No. 183-4642
Mfr. Part No.DTA123JMT2L
BrandROHM
HK$0.337
Each (On a Reel of 8000)
units
PNP 1 -100 mA - 2.2 kΩ 47kΩ Surface Mount SO-105AA 3 80 150 mW Single - -
RS Stock No. 146-7079
Mfr. Part No.DTD143ECT116
BrandROHM
HK$0.386
Each (On a Reel of 3000)
units
NPN 1 500 mA 50 V 4.7 kΩ 4.7kΩ Surface Mount SOT-23 3 47 200 mW Single - -
RS Stock No. 518-3778
Mfr. Part No.PUMD48,115
BrandNexperia
HK$1.92
Each (In a Pack of 50)
units
NPN + PNP 2 100 mA 50 V 2.2 kΩ, 47 kΩ - Surface Mount UMT 6 80 - Isolated 0.15 V 10 V
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