Ohm Potentiometer

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Atari 2600 Paddle Controller repair Mod
Potentiometer 25K Ohm Clarostat SPSG040S253U 10mm
Potentiometer 25K Ohm Clarostat SPSG040S253U 10mm
US $14.95
 3 x 500 ohm 1/2W Top Adjustment Trimmer Potentiometers
3 x 500 ohm 1/2W Top Adjustment Trimmer Potentiometers
US $3.71
 Potentiometer 500 Ohm Allen Bradley SPPG024S501U 10mm
Potentiometer 500 Ohm Allen Bradley SPPG024S501U 10mm
US $14.95
 Potentiometer 1K Ohm 543F1KB 16mm
Potentiometer 1K Ohm 543F1KB 16mm
US $14.95
Potentiometer 200 Ohm Allen Bradley FR201M 13MM
Potentiometer 200 Ohm Allen Bradley FR201M 13MM
US $14.95
 Potentiometer 5K Ohm Allen Bradley FR502M 13MM
Potentiometer 5K Ohm Allen Bradley FR502M 13MM
US $14.95
 5 Pcs 20K OHM B20K Single Linear Taper Potentiometer
5 Pcs 20K OHM B20K Single Linear Taper Potentiometer
US $5.64
 3 x 100K ohm 3006P-1-104 15 Turns Cermet Potentiometers
3 x 100K ohm 3006P-1-104 15 Turns Cermet Potentiometers
US $3.75
Megatron LINEAR MOTION POTENTIOMETER 10K ohm TESTED
Megatron LINEAR MOTION POTENTIOMETER 10K ohm TESTED
US $59.00
 1K-Ohm 15-Turn Cermet Potentiometer
1K-Ohm 15-Turn Cermet Potentiometer
US $4.73
 25x Sealed DIP Trimmer Pot Cermet Potentiometer 504 500K OHM 3006P
25x Sealed DIP Trimmer Pot Cermet Potentiometer 504 500K OHM 3006P
US $8.82
 2 x 100K ohm Side Adjustment Cermet Potentiometer 3006P
2 x 100K ohm Side Adjustment Cermet Potentiometer 3006P
US $3.50
3006P-1-502 5K Ohm Trimpot Multiturn Potentiometer 3006P 25 Pcs
3006P-1-502 5K Ohm Trimpot Multiturn Potentiometer 3006P 25 Pcs
US $9.29
 5 X 100K Potentiometer Noble Pot 7734 Japan BM100K Ohm
5 X 100K Potentiometer Noble Pot 7734 Japan BM100K Ohm
US $9.90
 100pcs 100K Ohm B100K Knurled Shaft Linear Rotary Taper Potentiometer
100pcs 100K Ohm B100K Knurled Shaft Linear Rotary Taper Potentiometer
US $80.30
 100pcs 50K Ohm B50K Knurled Shaft Linear Rotary Taper Potentiometer
100pcs 50K Ohm B50K Knurled Shaft Linear Rotary Taper Potentiometer
US $80.30
Bourns Cermet Potentiometer 2K Ohm 3352 Single Turn
Bourns Cermet Potentiometer 2K Ohm 3352 Single Turn
US $1.00
 2 x 5K ohm Square Trimming Potentiometers 3362P-1-502
2 x 5K ohm Square Trimming Potentiometers 3362P-1-502
US $3.48
 Guitar B Control Pots Audio Taper Potentiometer 20K Ohm
Guitar B Control Pots Audio Taper Potentiometer 20K Ohm
US $3.24
 50x 3386P 203 20K Ohm Variable Resistor Trimmer Pot Potentiometer
50x 3386P 203 20K Ohm Variable Resistor Trimmer Pot Potentiometer
US $12.08
10 TURN HELIPOT BECKMAN A-R30K-L.25 POTENTIOMETER 30K OHM
10 TURN HELIPOT BECKMAN A-R30K-L.25 POTENTIOMETER 30K OHM
US $.89
 3362P3362P-1-104LF Cermet Trimmer Pot Potentiometer 100K Ohm 50 Pcs
3362P3362P-1-104LF Cermet Trimmer Pot Potentiometer 100K Ohm 50 Pcs
US $11.87
 25x 202 2K OHM Cermet Potentiometer Trim Pot 15 Turn 3006 3006P
25x 202 2K OHM Cermet Potentiometer Trim Pot 15 Turn 3006 3006P
US $9.77
 Potentiometer 5K Ohm Allen Bradley WA2G024S502MA 13mm
Potentiometer 5K Ohm Allen Bradley WA2G024S502MA 13mm
US $14.95
5 x 100K ohm B100K Single Linear Potentiometer Pots
5 x 100K ohm B100K Single Linear Potentiometer Pots
US $5.02
 Dual Ganged PCB Potentiometer 500 Ohm 16mm
Dual Ganged PCB Potentiometer 500 Ohm 16mm
US $1.00
 2W 15K Ohm Resistence Rotary Wirewound Pots Potentiometer w Knob
2W 15K Ohm Resistence Rotary Wirewound Pots Potentiometer w Knob
US $8.11
 3 x 1K ohm 15 Turns 3006P DIP Cermet Potentiometer 500V
3 x 1K ohm 15 Turns 3006P DIP Cermet Potentiometer 500V
US $3.74
MEGATRON MUNCHEN SAKAE WGR30 POTENTIOMETER 1K OHM 4PIN 54947
MEGATRON MUNCHEN SAKAE WGR30 POTENTIOMETER 1K OHM 4PIN 54947
US $3.99
 2 x 500K ohm Side Adjustment 3006 Cermet Potentiometers
2 x 500K ohm Side Adjustment 3006 Cermet Potentiometers
US $3.47
 2 x 200K ohm 6.8mm Square Cermet Trimpot Potentiometer
2 x 200K ohm 6.8mm Square Cermet Trimpot Potentiometer
US $3.47
 Panasonic 1K to 1M ohm Top-Adjust Trimmer Potentiometer Assorted Kit. EVND 6FE
Panasonic 1K to 1M ohm Top-Adjust Trimmer Potentiometer Assorted Kit. EVND 6FE
US $9.99
3 x 10K Ohm 3 Terminals 15 Turns Trimming Potentiometer
3 x 10K Ohm 3 Terminals 15 Turns Trimming Potentiometer
US $3.74
 2 x 1K ohm 500V 3/4W Trimming Potentiometer Resistors
2 x 1K ohm 500V 3/4W Trimming Potentiometer Resistors
US $3.49
 100x 473 47K Ohm Variable Resistor Trim Pot Potentiometer
100x 473 47K Ohm Variable Resistor Trim Pot Potentiometer
US $12.12
 3 x 100K ohm Through Hole DIP Cermet Potentiometer 3006
3 x 100K ohm Through Hole DIP Cermet Potentiometer 3006
US $3.72
3 x 250K OHM TRIMPOT TRIMMER POTENTIOMETER 3296W 3296
3 x 250K OHM TRIMPOT TRIMMER POTENTIOMETER 3296W 3296
US $1.39
 5 x 50K ohm Single Turn 6.8mm Square Potentiometers New
5 x 50K ohm Single Turn 6.8mm Square Potentiometers New
US $4.22
 25pcs 3006P 1K ohm Trimmer Pot Potentiometers Variable Resistor
25pcs 3006P 1K ohm Trimmer Pot Potentiometers Variable Resistor
US $9.30
 25x 101 100 OHM Cermet Potentiometer Trim Pot 15 Turn 3006 3006P
25x 101 100 OHM Cermet Potentiometer Trim Pot 15 Turn 3006 3006P
US $9.14
(12) NOS Ohmite Rheostat Potentiometer 50 Ohm 0.5 Amp & (2) NOS Larger Pot
(12) NOS Ohmite Rheostat Potentiometer 50 Ohm 0.5 Amp & (2) NOS Larger Pot
US $32.02
 100 to 1M ohm 3296 Multiturn Trimming Potentiometer Kit
100 to 1M ohm 3296 Multiturn Trimming Potentiometer Kit
US $9.99
 100K ohm Vertical PCB Preset/Variable/Trimmer Potentiometer/Pot Resistor
100K ohm Vertical PCB Preset/Variable/Trimmer Potentiometer/Pot Resistor
US $2.65
 3 x 2K ohm Side Adjustment DIP Trimming Potentiometers
3 x 2K ohm Side Adjustment DIP Trimming Potentiometers
US $3.74
3296W-1-501 500 Ohm Cermet Trimmer Potentiometers 25 Turn x50pcs
3296W-1-501 500 Ohm Cermet Trimmer Potentiometers 25 Turn x50pcs
US $12.19
 2 x 5K ohm 3 Terminals DIP Through Hole Potentiometers
2 x 5K ohm 3 Terminals DIP Through Hole Potentiometers
US $3.49
 TESLA Wire Potentiometer / 150 Ohm / 2W / NOS QTY=10
TESLA Wire Potentiometer / 150 Ohm / 2W / NOS QTY=10
US $9.99
 Vintage Ceramic RFT Germany WIRE WOUND Potentiometer 10Ohm 10 Ohm 10W NOS
Vintage Ceramic RFT Germany WIRE WOUND Potentiometer 10Ohm 10 Ohm 10W NOS
US $9.99
REMIX GERMANY Wire Potentiometer / 100 Ohm / NOS QTY=4
REMIX GERMANY Wire Potentiometer / 100 Ohm / NOS QTY=4
US $8.99
 TESLA Wire Potentiometer / 470 Ohm / 2W / NOS QTY=6
TESLA Wire Potentiometer / 470 Ohm / 2W / NOS QTY=6
US $9.99
 10K ohm Vertical PCB Preset/Variable/Trimmer Potentiometer/Pot Resistor 10K
10K ohm Vertical PCB Preset/Variable/Trimmer Potentiometer/Pot Resistor 10K
US $2.65
 100 to 1M ohm Single-Turn Trimming Potentiometers Kit.
100 to 1M ohm Single-Turn Trimming Potentiometers Kit.
US $8.99
4.7K ohm Vertical PCB Preset/Variable/Trimmer Potentiometer/Pot Resistor 4.7K
4.7K ohm Vertical PCB Preset/Variable/Trimmer Potentiometer/Pot Resistor 4.7K
US $2.65
 100x 332 3.3K Ohm DIP Pot Potentiometer Trimmer Resistor 0.15W
100x 332 3.3K Ohm DIP Pot Potentiometer Trimmer Resistor 0.15W
US $11.91
 10pcs 25K ohm 3296W Trim Pot Trimmer Potentiometer 3296
10pcs 25K ohm 3296W Trim Pot Trimmer Potentiometer 3296
US $5.99
 2 x 2M ohm 6.8mm Square Cermet Trimpot Potentiometers
2 x 2M ohm 6.8mm Square Cermet Trimpot Potentiometers
US $3.47
5pcs 200K ohm 3362P Trim Pot Trimmer Potentiometer 3362
5pcs 200K ohm 3362P Trim Pot Trimmer Potentiometer 3362
US $3.99
 100 ohm Horizontal PCB Preset/Variable/Trimmer Potentiometer/Pot Resistor 100R
100 ohm Horizontal PCB Preset/Variable/Trimmer Potentiometer/Pot Resistor 100R
US $2.65
 NEW CLAROSTAT 392C3250 RV6NAYSD251A392 MINIATURE POTENTIOMETER 1 TURN 250 OHM
NEW CLAROSTAT 392C3250 RV6NAYSD251A392 MINIATURE POTENTIOMETER 1 TURN 250 OHM
US $12.99
 3 x 5K ohm 3 Terminals DIP Through Hole Potentiometers
3 x 5K ohm 3 Terminals DIP Through Hole Potentiometers
US $3.73
bushing mount Linear taper 2watt 2.2k ohm potentiometer
bushing mount Linear taper 2watt 2.2k ohm potentiometer
US $4.99
 25pcs 3006P 100K ohm Trimmer Pot Potentiometers Variable Resistor
25pcs 3006P 100K ohm Trimmer Pot Potentiometers Variable Resistor
US $9.10
 5 x 10K ohm 3 Terminals Potentiometer Variable Resistor
5 x 10K ohm 3 Terminals Potentiometer Variable Resistor
US $4.24
 330K Ohm 334 Variable Resistor Trimmer Potentiometer 100 Pcs
330K Ohm 334 Variable Resistor Trimmer Potentiometer 100 Pcs
US $11.93
100 Pcs SMD Trimmer Potentiometers Variable Resistor 33K ohm
100 Pcs SMD Trimmer Potentiometers Variable Resistor 33K ohm
US $17.75
 5 x 50 Ohm 500VDC Cermet Trimpot Trimming Potentiometer
5 x 50 Ohm 500VDC Cermet Trimpot Trimming Potentiometer
US $4.19
 25pcs 3006P 500 ohm Trimmer Pot Potentiometers Variable Resistor
25pcs 3006P 500 ohm Trimmer Pot Potentiometers Variable Resistor
US $9.28
 50x Through Hole Trim Pot Cermet Potentiometer 101 100 OHM 3296W
50x Through Hole Trim Pot Cermet Potentiometer 101 100 OHM 3296W
US $12.22
100Pcs Variable Resistor Trim Pot Potentiometer 200 Ohm
100Pcs Variable Resistor Trim Pot Potentiometer 200 Ohm
US $11.94
 Panasonic 1K to 1M ohm Side-Adjust Trimmer Potentiometer Assorted Kit. EVND 6FE
Panasonic 1K to 1M ohm Side-Adjust Trimmer Potentiometer Assorted Kit. EVND 6FE
US $9.99
 2 x 10K Ohm 3 Terminals 15 Turns Trimming Potentiometer
2 x 10K Ohm 3 Terminals 15 Turns Trimming Potentiometer
US $3.48
 1K ohm 3296 Multiturn Trimmer Potentiometer, 10PCS
1K ohm 3296 Multiturn Trimmer Potentiometer, 10PCS
US $4.99
3006P-1-202 Cermet Trimmer Potentiometer 2K Ohm 15 Turn 25 Pcs
3006P-1-202 Cermet Trimmer Potentiometer 2K Ohm 15 Turn 25 Pcs
US $9.31
 3296W 5K 502 ohm Multiturn Potentiometer Trimmer Pots x50pcs
3296W 5K 502 ohm Multiturn Potentiometer Trimmer Pots x50pcs
US $12.20
 Bourns 200 ohm Potentiometer 3400S-1-201 5 watt 10 turn
Bourns 200 ohm Potentiometer 3400S-1-201 5 watt 10 turn
US $19.99
 Stackpole 3 Gang 3x 10K Ohm Pot Potentiometer & Switch
Stackpole 3 Gang 3x 10K Ohm Pot Potentiometer & Switch
US $9.95
100x 20K Ohm 203 Mini Trimmer Potentiometers Pot Resistors
100x 20K Ohm 203 Mini Trimmer Potentiometers Pot Resistors
US $11.91
 100pcs 301 300 Ohm DIP Pots Potentiometer Trimmer Resistor
100pcs 301 300 Ohm DIP Pots Potentiometer Trimmer Resistor
US $11.90
 10K Ohm 6mm Shaft 3 Terminals Electrical Wirewound Potentiometer
10K Ohm 6mm Shaft 3 Terminals Electrical Wirewound Potentiometer
US $8.48
 3362P-1-501 Single Turn Trimmer Pot Potentiometer 500 Ohm 50 Pcs
3362P-1-501 Single Turn Trimmer Pot Potentiometer 500 Ohm 50 Pcs
US $11.90
50pcs 203 20K ohm 3296W Trim Pot Trimmer Potentiometer 25 Turn
50pcs 203 20K ohm 3296W Trim Pot Trimmer Potentiometer 25 Turn
US $11.97
 Vintage Dejur Potentiometer Type 241 #40-5065 50 Watt 50 Ohm NOS Lot 3
Vintage Dejur Potentiometer Type 241 #40-5065 50 Watt 50 Ohm NOS Lot 3
US $4.99
 2W 680K Ohm 6mm Split Shaft Wirewound Rotary Pots Potentiometer
2W 680K Ohm 6mm Split Shaft Wirewound Rotary Pots Potentiometer
US $5.31
 50pcs 3362P Trimmer Pot Potentiometers Variable Resistor 500 ohm
50pcs 3362P Trimmer Pot Potentiometers Variable Resistor 500 ohm
US $11.92
5% Tolerance 10K Ohm 2W 5 Pins Rotary Wirewound Potentiometer w Knob
5% Tolerance 10K Ohm 2W 5 Pins Rotary Wirewound Potentiometer w Knob
US $5.96
 WXD3-13 0.16
WXD3-13 0.16" Shaft Dia 10K Ohm 2W Rotary Multiturn Potentiometer w Knob
US $6.53
 100pcs 0.15W 222 2.2K Ohm Pot Potentiometer Trimmer Resistor
100pcs 0.15W 222 2.2K Ohm Pot Potentiometer Trimmer Resistor
US $11.91
 500pcs 100 ohm Single-Turn Trimming Potentiometer 101 New
500pcs 100 ohm Single-Turn Trimming Potentiometer 101 New
US $32.00
10 × 200 Ohm Trimpot Trimmer Potentiometer 3296W [EF14]
10 × 200 Ohm Trimpot Trimmer Potentiometer 3296W [EF14]
US $.01
 225 2.2M Ohm Variable Resistor Trimmer Potentiometer 100 Pcs
225 2.2M Ohm Variable Resistor Trimmer Potentiometer 100 Pcs
US $11.93
 50x 3386P 1K 102 Ohm Variable Resistor Trim Pots Potentiometers
50x 3386P 1K 102 Ohm Variable Resistor Trim Pots Potentiometers
US $12.09
 100x 5K Ohm Variable Resistor Trim Pot Potentiometers 502
100x 5K Ohm Variable Resistor Trim Pot Potentiometers 502
US $12.11
5 pcs 3296 W High Precision Variable Resistor Potentiometer Trimmer 502 5k ohm
5 pcs 3296 W High Precision Variable Resistor Potentiometer Trimmer 502 5k ohm
US $2.19
 3296W-1-204 200K Ohm Cermet Trimmer Potentiometer 25 Turn 50 Pcs
3296W-1-204 200K Ohm Cermet Trimmer Potentiometer 25 Turn 50 Pcs
US $14.97
 100pcs 20K ohm Trimmer Pot resistor 3296 potentiometer
100pcs 20K ohm Trimmer Pot resistor 3296 potentiometer
US $30.99
 10pcs 25K ohm 3362P Trim Pot Trimmer Potentiometer 3362
10pcs 25K ohm 3362P Trim Pot Trimmer Potentiometer 3362
US $5.99
3006P-1-203 20K Ohm Cermet Trimmer Potentiometer 15 Turns 25 Pcs
3006P-1-203 20K Ohm Cermet Trimmer Potentiometer 15 Turns 25 Pcs
US $9.77

Ohm Potentiometer

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Frequently Asked Questions...

Let's assume I have a 10 kilo-ohm potentiometer with a 5 W power rating...?

Does this mean that the 5 W power is constant regardless of the resistance settting. So power is constant and voltage, current, and resistance are all variable?

V=IR
P=I^2*R
P=V^/R

Which values of P,V,R, and I are constant and which are variable?


Answer:

No,it means that the maximum current you can have through any part of the potentiometer without exceeding the power limits of the potentiometer is determined by I max = square root of (the power rating of the potentiometer divided by the total resistance of the potentiometer). In this case I max = Square Root (5 /10000) = 22.36 mA. This means the current through the potentiometer plus the current through the wiper of the potentiometer can not exceed 22.36 mA without overloading the potentiometer.

With this in mind it will be necessary to select a voltage source or dropping resistor of the proper value so that you have the range of Voltage you need available at the wiper of the potentiometer. This of course has to be accomplished without exceeding the current limit of 22.36 mA even if the wiper of the potentiometer is set at either of it`s extremes.

In the above discussion I have assumed that the potentiometer is connected from the source Voltage to neutral and the wiper arm of the potentiometer is used to pick off a variable voltage for use wherever. However,the maximum current formula to stay within the power limits of the potentiometer is still valid even if the end terminal of the potentiometer is left open and the potentiometer is used as a variable resistor.

Filed Under: Electrical Testing Equipment Tagged With: ohm potentiometers