Rotary Potentiometers, Rheostats

A rotary potentiometer (Pot) is a three-terminal device that employs a resistive element and a rotating contact to form an adjustable voltage divider. If only two terminals are used, one end of the element and the adjustable contact, it acts as a variable resistor or rheostat. Potentiometers are selected by the resistance value of the element, degree of rotation/number of turns, linear or logarithmic taper, power dissipation, number of ganged elements, resistive material and termination style. Some have built-in switch contacts.

Part Number Manufacturer Description Quantity Price Option
PDB181-E420K-104B Bourns, Inc. POT 100K OHM 1/5W CARBON LINEAR 450 $1.22
PDB181-K420K-104A2 Bourns, Inc. POT 100K OHM 1/10W CARBON LOG 517 $1.22
PDB181-K420K-502B Bourns, Inc. POT 5K OHM 1/5W CARBON LINEAR 525 $1.22
P170S2-QC15BR1K TT Electronics/BI POT 1K OHM 1/10W PLASTIC LINEAR 274 $1.12
PDB12-H4251-202BF Bourns, Inc. POT 2K OHM 0.08W CARBON LINEAR 438 $1.02
PDB12-M4251-105BF Bourns, Inc. POT 1M OHM 0.08W CARBON LINEAR 454 $1.02
PDB12-H4251-103BF Bourns, Inc. POT 10K OHM 0.08W CARBON LINEAR 864 $1.02
P170S-FC15BR100K TT Electronics/BI POT 100K OHM 1/10W PLASTIC LIN 882 $1.02
PDB12-H4301-105BF Bourns, Inc. POT 1M OHM 0.08W CARBON LINEAR 935 $1.02
P140KH-F20BR5K TT Electronics/BI POT 5K OHM 1/20W PLASTIC LINEAR 920 $0.92