Digital Potentiometers

What is a Digital potentiometer?
Digital Potentiometers are a three terminal device, two fixed end terminals and one wiper terminal which is used to vary the resistance.
A Digital potentiometer also known as digipot, is similar to a standard analogue potentiometer, which is a variable resistor except the digital potentiometer has an integrated chip (IC) that accepts a signal input rather than the physical movement of a shaft or slide for adjustment. Potentiometers physically change the resistance value whereas digital potentiometers modify the resistance value via digital inputs rather than a rotary wheel or a slider.
Where might I use one?
Digital potentiometers would be beneficial where environmental factors would impact a mechanical potentiometer in areas where there is vibration, dust, moisture or grease as digital potentiometers are encapsulated they offer better protection, they are also less vunerable to vibration Digital potentiometers are used to calibrate system tolerances or control system parameters.

What are the advantages over a mechanical potentiometer?
Digital potentiometers can be operated in a closed control loop and don’t need physical access to be adjusted. . They offer better stability and reliability and as digital will offer additional functionality, some even have on - chip memory
Applications
• System calibration
• Process control
• Sensor calibration
• Smart actuator
• Voltage margining
• Programmable power supplies
• Volume control

...
Read more Read less

Filters

Viewing 1 - 20 of 647 products
Results per page
Description Price Control Interface Resistance Value Number of Positions Taper Type Memory Type Number of Pots per Package Mounting Type Package Type Pin Count Power Supply Type Typical Single Supply Voltage Typical Dual Supply Voltage Dimensions Height
RS Stock No. 403-676
Mfr. Part No.MCP41010-E/P
BrandMicrochip
HK$13.116
Each (In a Pack of 5)
units
Serial-SPI 10kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS Stock No. 144-9093
Mfr. Part No.MCP41010-E/P
BrandMicrochip
HK$9.303
Each (In a Tube of 60)
units
Serial-SPI 10kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS Stock No. 628-3762
Mfr. Part No.MCP41010-I/SN
BrandMicrochip
HK$10.514
Each (In a Pack of 5)
units
Serial-SPI 10kΩ 256 Linear - 1 Surface Mount SOIC 8 Single 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 139-335
Mfr. Part No.DS1804-050+
BrandMaxim
HK$26.16
Each
units
Increment/Decrement 50kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 3 V, 5 V - 9.91 x 7.87 x 4.45mm 4.45mm
RS Stock No. 889-5878
Mfr. Part No.MCP41010-I/SN
BrandMicrochip
HK$8.297
Each (In a Tube of 100)
units
Serial-SPI 10kΩ 256 Linear - 1 Surface Mount SOIC 8 Single 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 146-1116
Mfr. Part No.DS1804-050+
BrandMaxim
HK$23.063
Each (In a Tube of 50)
units
Increment/Decrement 50kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 3 V, 5 V - 9.91 x 7.87 x 4.45mm 4.45mm
RS Stock No. 669-6367
Mfr. Part No.MCP42010-I/P
BrandMicrochip
HK$17.625
Each (In a Pack of 2)
units
Serial-SPI 10kΩ 256 Linear - 2 Through Hole PDIP 14 Single 3.3 V, 5 V - 19.05 x 6.35 x 3.3mm 3.3mm
RS Stock No. 146-0134
Mfr. Part No.MCP42010-I/P
BrandMicrochip
HK$12.895
Each (In a Tube of 30)
units
Serial-SPI 10kΩ 256 Linear - 2 Through Hole PDIP 14 Single 3.3 V, 5 V - 19.05 x 6.35 x 3.3mm 3.3mm
RS Stock No. 403-654
Mfr. Part No.MCP41100-E/P
BrandMicrochip
HK$13.59
Each (In a Pack of 5)
units
Serial-SPI 100kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS Stock No. 144-5722
Mfr. Part No.MCP41100-E/P
BrandMicrochip
HK$9.303
Each (In a Tube of 60)
units
Serial-SPI 100kΩ 256 Linear - 1 Through Hole PDIP 8 Single 3.3 V, 5 V - 9.27 x 6.35 x 3.3mm 3.3mm
RS Stock No. 921-5352
Mfr. Part No.X9313WSZ
HK$26.595
Each (In a Pack of 2)
units
Serial-3 Wire 10kΩ 32 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 806-5317
Mfr. Part No.AD5272BRMZ-100
HK$35.805
Each (In a Pack of 2)
units
Serial-3 Wire, Serial-I2C 100kΩ 1024 - Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 → 5.5 V ±2.5 → ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm
RS Stock No. 923-7728
Mfr. Part No.MAX5483EUD+
BrandMaxim
HK$29.994
Each (In a Tube of 96)
units
Serial-SPI 10kΩ 1024 Linear Non-Volatile 1 Surface Mount TSSOP 14 Dual, Single 2.7 → 5.25 V ±2.5V 5.1 x 4.5 x 0.95mm 0.95mm
RS Stock No. 160-4482
Mfr. Part No.AD5171BRJZ5-R2
HK$19.37
Each (On a Reel of 250)
units
I2C, Serial-2 Wire 5kΩ 64 Linear Non-Volatile 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 2.9 x 1.6 x 1.3mm 1.3mm
RS Stock No. 160-1643
Mfr. Part No.AD5272BRMZ-100
HK$24.601
Each (In a Tube of 50)
units
Serial-3 Wire, Serial-I2C 100kΩ 1024 - Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 → 5.5 V ±2.5 → ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm
RS Stock No. 786-1196
Mfr. Part No.MAX5483EUD+
BrandMaxim
HK$31.67
Each (In a Pack of 2)
units
Serial-SPI 10kΩ 1024 Linear Non-Volatile 1 Surface Mount TSSOP 14 Dual, Single 2.7 → 5.25 V ±2.5V 5.1 x 4.5 x 0.95mm 0.95mm
RS Stock No. 912-2770
Mfr. Part No.MCP41100-E/SN
BrandMicrochip
HK$9.401
Each (In a Tube of 100)
units
Serial-SPI 100kΩ 256 Linear - 1 Surface Mount SOIC 8 Single 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
RS Stock No. 819-7095
Mfr. Part No.AD5171BRJZ5-R2
HK$26.376
Each (In a Pack of 5)
units
I2C, Serial-2 Wire 5kΩ 64 Linear Non-Volatile 1 Surface Mount SOT-23 8 Single 2.7 → 5.5 V - 2.9 x 1.6 x 1.3mm 1.3mm
RS Stock No. 806-5298
Mfr. Part No.AD5175BRMZ-10
HK$29.355
Each (In a Pack of 2)
units
Serial-3 Wire, Serial-I2C 10kΩ 1024 - Non-Volatile 1 Surface Mount MSOP 10 Dual, Single 2.7 → 5.5 V ±2.5 → ±2.75V 3.1 x 3.1 x 0.95mm 0.95mm
RS Stock No. 403-743
Mfr. Part No.MCP41100-E/SN
BrandMicrochip
HK$12.46
Each (In a Pack of 5)
units
Serial-SPI 100kΩ 256 Linear - 1 Surface Mount SOIC 8 Single 3.3 V, 5 V - 4.9 x 3.9 x 1.25mm 1.25mm
Related Products
A series of RS Pro insulated male double ...
Description:
A series of RS Pro insulated male double crimp bullet terminals with a brass sleeve and flared vinyl insulation. These insulated male crimp bullet wire connectors are colour coded for use with different wire sizes. All models are highly reliable ...
PIDG (Pre-Insulated Diamond Grip) bullet connectors consisting of ...
Description:
PIDG (Pre-Insulated Diamond Grip) bullet connectors consisting of receptacle and plug terminals designed for uniform reliability in the most difficult circuit environments. These PIDG crimp bullet connectors consist of a precision-formed high conductivity copper body and barrel. Serrations inside the ...
PLASTI-GRIP shur plug wire crimp terminals made of ...
Description:
PLASTI-GRIP shur plug wire crimp terminals made of high conductivity tin plated copper with an expanded high dielectric strength 94V-0 rated vinyl insulation sleeve. The inner barrel of these PLASTI-GRIP shur plug crimp terminals is serrated in order to provide ...
FASTON 250 series quick connect crimp flag receptacle ...
Description:
FASTON 250 series quick connect crimp flag receptacle terminals that offer speed of application and uniform reliability. Experience over widespread segments of industry has proved this crimp to be the most effective way of assuring stable electrical and mechanical performance. ...