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Potentiometers, Variable Resistors

Potentiometers, Variable Resistors

Potentiometers, Variable Resistors

A potentiometer is a three-terminal resistor with a sliding or rotating contact that forms an adjustable voltage divider. If only two terminals are used, one end and the wiper, it acts as a variable resistor or rheostat.

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses. High-power resistors that can dissipate many watts of electrical power as heat may be used as part of motor controls, in power distribution systems, or as test loads for generators. Fixed resistors have resistances that only change slightly with temperature, time or operating voltage. Variable resistors can be used to adjust circuit elements (such as a volume control or a lamp dimmer), or as sensing devices for heat, light, humidity, force, or chemical activity.

Image Part Number Manufacturer Description Package Stock Quantity Add to Cart
SM4ETA502
SM4ETA502 Copal Electronics Inc. TRIMMER 5K OHM 0.25W SMD - 5,400 piece(s)
SM4ETA501
SM4ETA501 Copal Electronics Inc. TRIMMER 500 OHM 0.25W SMD - 3,168 piece(s)
SM4ETA204
SM4ETA204 Copal Electronics Inc. TRIMMER 200K OHM 0.25W SMD - 2,142 piece(s)
SM4ETA203
SM4ETA203 Copal Electronics Inc. TRIMMER 20K OHM 0.25W SMD - 3,834 piece(s)
SM4ETA202
SM4ETA202 Copal Electronics Inc. TRIMMER 2K OHM 0.25W SMD - 2,484 piece(s)
SM4ETA201
SM4ETA201 Copal Electronics Inc. TRIMMER 200 OHM 0.25W SMD - 4,932 piece(s)
SM4ETW503
SM4ETW503 Copal Electronics Inc. TRIMMER 50K OHM 0.25W SMD - 2,970 piece(s)
SM4ETW502
SM4ETW502 Copal Electronics Inc. TRIMMER 5K OHM 0.25W SMD - 5,454 piece(s)
SM4ETW501
SM4ETW501 Copal Electronics Inc. TRIMMER 500 OHM 0.25W SMD - 7,488 piece(s)
SM4ETW204
SM4ETW204 Copal Electronics Inc. TRIMMER 200K OHM 0.25W SMD - 3,402 piece(s)
SM4ETW203
SM4ETW203 Copal Electronics Inc. TRIMMER 20K OHM 0.25W SMD - 8,712 piece(s)
SM4ETW202
SM4ETW202 Copal Electronics Inc. TRIMMER 2K OHM 0.25W SMD - 7,128 piece(s)
SM4ETW201
SM4ETW201 Copal Electronics Inc. TRIMMER 200 OHM 0.25W SMD - 6,840 piece(s)
SM4ETW105
SM4ETW105 Copal Electronics Inc. TRIMMER 1M OHM 0.25W SMD - 2,556 piece(s)
SM4ETW104
SM4ETW104 Copal Electronics Inc. TRIMMER 100K OHM 0.25W SMD - 6,012 piece(s)
SM4ETW103
SM4ETW103 Copal Electronics Inc. TRIMMER 10K OHM 0.25W SMD - 5,220 piece(s)
3318P-1-102
3318P-1-102 Bourns Inc. TRIMMER 1K OHM 0.1W PC PIN - 3,438 piece(s)
3318P-1-101
3318P-1-101 Bourns Inc. TRIMMER 100 OHM 0.1W PC PIN - 3,834 piece(s)
3318K-1-502
3318K-1-502 Bourns Inc. TRIMMER 5K OHM 0.1W PC PIN - 5,400 piece(s)
3318K-1-105
3318K-1-105 Bourns Inc. TRIMMER 1M OHM 0.1W PC PIN - 5,670 piece(s)
3318F-1-502
3318F-1-502 Bourns Inc. TRIMMER 5K OHM 0.1W PC PIN - 8,226 piece(s)
3318F-1-203
3318F-1-203 Bourns Inc. TRIMMER 20K OHM 0.1W PC PIN - 5,832 piece(s)
3318F-1-105
3318F-1-105 Bourns Inc. TRIMMER 1M OHM 0.1W PC PIN - 6,084 piece(s)
3318F-1-103
3318F-1-103 Bourns Inc. TRIMMER 10K OHM 0.1W PC PIN - 4,302 piece(s)
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