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 dont 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

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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. 921-5368
Mfr. Part No.X9C103PZ
$9.12
Each (In a Pack of 2)
units
Serial-3 Wire 10kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.56 x 6.35 x 3.3mm 3.3mm
RS Stock No. 170-8172
Mfr. Part No.X9C103PZ
$7.436
Each (In a Tube of 50)
units
Serial-3 Wire 10kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.56 x 6.35 x 3.3mm 3.3mm
RS Stock No. 921-5349
Mfr. Part No.X9C103SZ
$8.745
Each (In a Pack of 2)
units
Serial-3 Wire 10kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 170-8170
Mfr. Part No.X9C103SZ
$6.435
Each (In a Tube of 100)
units
Serial-3 Wire 10kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 921-5343
Mfr. Part No.X9C104SZ
$8.075
Each (In a Pack of 2)
units
Serial-3 Wire 100kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 668-9160
Mfr. Part No.X9C103SIZ
$6.26
Each
units
Serial-3 Wire 10kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
New
RS Stock No. 193-1542
Mfr. Part No.ISL90728WIE627Z-T7A
$2.046
Each (On a Reel of 250)
units
Serial-I2C 10kΩ 128 - Volatile 1 Surface Mount SC-70 6 Single 2.7 → 5.5 V - 2.15 x 1.35 x 1mm 1mm
New
RS Stock No. 193-1540
Mfr. Part No.ISL90727WIE627Z-T7A
$2.046
Each (On a Reel of 250)
units
Serial-I2C 10kΩ 128 - Volatile 1 Surface Mount SC-70 6 Single 2.7 → 5.5 V - 2.15 x 1.35 x 1mm 1mm
RS Stock No. 146-2404
Mfr. Part No.X9C503PZ
$6.391
Each (In a Tube of 50)
units
Serial-3 Wire 50kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.56 x 6.35 x 3.3mm 3.3mm
RS Stock No. 921-5844
Mfr. Part No.X9241AUSIZ
$18.03
Each
units
Serial-2 Wire 50kΩ 64 Linear Non-Volatile 4 Surface Mount SOIC 20 Single 5 V - 12.8 x 7.49 x 2.34mm 2.34mm
RS Stock No. 921-5548
Mfr. Part No.X9C103SIZ
$9.92
Each (In a Pack of 2)
units
Serial-3 Wire 10kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 921-5535
Mfr. Part No.X9C503PZ
$7.515
Each (In a Pack of 2)
units
Serial-3 Wire 50kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.56 x 6.35 x 3.3mm 3.3mm
New
RS Stock No. 193-1543
Mfr. Part No.ISL90728WIE627Z-T7A
$3.14
Each (In a Pack of 5)
units
Serial-I2C 10kΩ 128 - Volatile 1 Surface Mount SC-70 6 Single 2.7 → 5.5 V - 2.15 x 1.35 x 1mm 1mm
RS Stock No. 923-1474
Mfr. Part No.X9C102SZ
$6.204
Each (In a Tube of 100)
units
Serial-3 Wire 1kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
New
RS Stock No. 193-1541
Mfr. Part No.ISL90727WIE627Z-T7A
$3.14
Each (In a Pack of 5)
units
Serial-I2C 10kΩ 128 - Volatile 1 Surface Mount SC-70 6 Single 2.7 → 5.5 V - 2.15 x 1.35 x 1mm 1mm
RS Stock No. 921-5680
Mfr. Part No.X9C102SZ
$8.415
Each (In a Pack of 2)
units
Serial-3 Wire 1kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 146-2398
Mfr. Part No.X9C104SZ
$5.687
Each (In a Tube of 100)
units
Serial-3 Wire 100kΩ 100 Linear Non-Volatile 1 Surface Mount SOIC 8 Single 5 V - 5 x 4 x 1.5mm 1.5mm
RS Stock No. 921-5352
Mfr. Part No.X9313WSZ
$5.81
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. 921-5848
Mfr. Part No.X9C102PZ
$8.245
Each (In a Pack of 2)
units
Serial-3 Wire 1kΩ 100 Linear Non-Volatile 1 Through Hole PDIP 8 Single 5 V - 9.56 x 6.35 x 3.3mm 3.3mm