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. 122-3242
Mfr. Part No.DDTC143EUA-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 20 200 mW Single - 30 V
New
RS Stock No. 186-8631
Mfr. Part No.NVTR4502PT1G
HK$3.003
Each (In a Pack of 25)
units
- 1 - - - - Surface Mount SOT-23 3 - 1.25 W - - -
RS Stock No. 170-8041
Mfr. Part No.PUMD2,165
BrandNexperia
HK$0.277
Each (On a Reel of 10000)
units
- 2 100 mA 50 V 22 kΩ - Surface Mount SOT-363 6 60 300 mW Dual Base 0.15 V 10 V
RS Stock No. 183-4923
Mfr. Part No.IMH9AT110
BrandROHM
HK$1.08
Each (In a Pack of 60)
units
NPN 2 100 mA - 10 kΩ 47kΩ Surface Mount SOT-457 5 68 300 mW - - -
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. 145-3114
Mfr. Part No.MUN5312DW1T1G
HK$0.237
Each (On a Reel of 3000)
units
NPN + PNP 2 100 mA 50 V 22 kΩ - Surface Mount SOT-363 (SC-88) 6 60 - Isolated 0.25 V -
New
RS Stock No. 186-8119
Mfr. Part No.FDA38N30
HK$24.14
Each (In a Pack of 5)
units
- 1 - - - - Through Hole TO-3P 3 - 312 W - - -
New
RS Stock No. 186-7135
Mfr. Part No.BC849CLT1G
HK$0.177
Each (On a Reel of 3000)
units
NPN 1 100 mA 30 V dc - - Surface Mount SOT-23 3 200 300 mW Single 0.6 V 5 V
RS Stock No. 178-6030
Mfr. Part No.EMH9T2R
BrandROHM
HK$0.68
Each (In a Pack of 100)
units
- 2 100 mA 50 V 10 kΩ 47kΩ Surface Mount SOT-563 6 68 150 mW - - -
RS Stock No. 178-6015
Mfr. Part No.FMG2AT148
BrandROHM
HK$0.799
Each (In a Pack of 50)
units
- 2 100 mA 50 V 47 kΩ 47kΩ Surface Mount SOT-25 5 68 300 mW Common Emitter - -
RS Stock No. 826-8538
Mfr. Part No.IMD9AT108
BrandROHM
HK$1.895
Each (In a Pack of 60)
units
NPN + PNP 2 100 mA 50 V 10 kΩ 47kΩ Surface Mount SC-74 6 68 300 mW Isolated - 5 V
RS Stock No. 760-2915
Mfr. Part No.DRC9A14E0L
BrandPanasonic
HK$1.475
Each (In a Pack of 25)
units
NPN 1 80 mA 50 V 10 kΩ - Surface Mount SSMini3 F3 3 35 125 mW Single 0.25 V 6 V
RS Stock No. 518-2680
Mfr. Part No.PDTA144WT,215
BrandNexperia
HK$0.316
Each (In a Pack of 50)
units
PNP 1 100 mA 50 V 47 kΩ - Surface Mount SOT-23 (TO-236AB) 3 60 - Single 0.15 V 10 V
New
RS Stock No. 186-7397
Mfr. Part No.FJT44TF
HK$1.455
Each (On a Reel of 4000)
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. 170-8042
Mfr. Part No.PUMH9,135
BrandNexperia
HK$0.318
Each (On a Reel of 10000)
units
- 2 100 mA 50 V 10 kΩ - Surface Mount SOT-363 6 100 300 mW Dual Base 0.1 V 6 V
RS Stock No. 807-0870
Mfr. Part No.FJN3314RTA
HK$0.494
Each (In a Pack of 200)
units
NPN 1 100 mA 50 V 4.7 kΩ - Through Hole TO-92 3 68 300 mW Single 0.3 V 10 V
RS Stock No. 183-4688
Mfr. Part No.DTC144WUAT106
BrandROHM
HK$0.254
Each (On a Reel of 3000)
units
NPN 1 100 mA - 47 kΩ 22kΩ Surface Mount SOT-323 3 56 200 mW Single - -
RS Stock No. 690-0183
Mfr. Part No.MUN5211DW1T1G
HK$0.869
Each (In a Pack of 25)
units
NPN 2 100 mA 50 V 10 kΩ - Surface Mount SOT-363 (SC-88) 6 35 - Isolated 0.25 V -
RS Stock No. 823-2860
Mfr. Part No.DDTC123JCA-7-F
HK$0.371
Each (In a Pack of 200)
units
NPN 1 100 mA 50 V 2.2 kΩ - Surface Mount SOT-23 3 80 200 mW Single - 12 V
RS Stock No. 183-5383
Mfr. Part No.UMG9NTR
BrandROHM
HK$0.699
Each (In a Pack of 100)
units
NPN 2 100 mA - 10 kΩ 10kΩ Surface Mount SOT-353 5 30 150 mW Common Emitter - -
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