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Suntan is a Hong Kong based manufacturer of Trimming Potentiometers. Including SMD Trimming Potentiometers, Rectangular Trimming Potentiometers, Wirewould Trimming Potentiomers, Phenolic Trimming Potentiometers and 5, 6, 7, 8, 9 terminal Trimming Potentiometers etc. 
Please refer to below cross reference : http://www.suntan.com.hk/Trimming-Potentiometers/
Suntan can offer all kinds of Trimming Potentiometers, as below:

1. TSR-3006 - Rectangular Trimming Potentiometers
2. TSR-3323 - 7 Terminal Square Trimming Potentiometers
3. TSR-3296 - 5 Terminal Square Trimming Potentiometers
4. TSR-3362 - 9 Terminal Square Trimming Potentiometers
5. TSR-3386 - 8 Terminal Square Trimming Potentiometers
6. TSR-3329 - Circularity Trimming Potentiometers
7. TSR-3266 - 5 Terminal Square Trimming Potentiometers
8. TSR-3318 - 6mm Phenolic Round Trimming Potentiometers
9. TSR-3306 - 6mm Cermet Round Trimming Potentiometers
10. TSR-3309 - 9mm Round Trimming Potentiometers
11. TSR-065 - Phenolic Trimming Potentiometers
12. TSR-3590 - Precision Multiturn Wirewoud Potentiometer
13. TSR-105H - 6 Terminal Trimming Potentiometers
14. TSR-C3305 - SMD Trimmer Potentiometer - 3mm

Trimmer Potentiometer Cross Reference

To read a potentiometer, you need a multimeter. Put in on the proper ohmmeter setting, which should be higher than that of the resistance rating of the potentiometer as noted on the package or the device. If you don't know the resistance rating, use the lowest setting of the multimeter and increase it until you get a reading.
When reading the potentiometer, one multimeter lead must always be on the wiper or middle part, and the other one can be on either of the remaining terminals. For example, place one multimeter lead on the wiper, and the other on the left terminal of the potentiometer. If you place one lead on the left terminal and the other on the right, you will read the entire value of the pot, and the resistance will not vary when you turn the knob.
Note that Inexpensive ones may approximate only fifty percent of their rated value when they are measured.
we can offer all kinds of trimming potentiometers accept very small quantity with very competetive price, the delivery time is 2 weeks around. With our good support, our sales is keep increasing each month.Any questions ,please contact us at once.

Trimming Potentiometers come in different types.
Rotary and trimming potentiometers are wire wound, and are single or multi-turn, depending on the number of times the knob may be turned. The resistance is lowered or increased by turning the knob clock or counterclockwise, where the knob direction is dependent on the end that is used with the wiper.Faders or sliders as they are also known, have a rectangular shape, and the wiper moves back and forth in a linear fashion.
 
Potentiometers work by having a resistive element inside. Both end terminals are attached to it, and do not move. The wiper travels along the strip when the knob is turned. The closer the wiper is to the end terminal it is wired in conjunction with, the less the resistance, because the path of the current will be shorter. The further away it moves from the terminal, the greater the resistance will be.

The symbol for a potentiometer is the same one as a resistor, save for an arrow in the middle. In a circuit where they are used strictly as variable resistors or rheostats, only two terminals are wired to the other components. All three terminals are wired separately when they function as voltage dividers. Light dimmers in houses and volume controls on electronics are two common applications. Others include switches and position sensors.
 
Suntan Trimming Potentiometers selling keep increasing
Suntan can offer all kinds of Trimming Potentiometers, as below:TSR-3006 - Rectangular Trimming Potentiometers TSR-3323 - 7 Terminal Square Trimming Potentiometers TSR-3296 - 5 Terminal Square Trimming Potentiometers TSR-3362 - 9 Terminal Square Trimming Potentiometers TSR-3386 - 8 Terminal Square Trimming Potentiometers.

Suntan Trimming  potentiometer is an electrical component with a variable resistance.

In electrical engineering parlance, the term "potentiometer" is used in either one of two ways. It may refer to an instrument that measures an unknown emf or voltage by comparing it to a standard emf. In this capacity, it is functioning as a null instrument; it permits precision measurement by adjusting a value of a circuit element until a meter reads zero. Alternatively, "potentiometer" may refer to an electronic component that is used to vary resistance in a circuit.

A potentiometer is also referred to as a variable resistor or pot. They have three terminals, where the one in the middle is known as the wiper, and the other two are known as ends. The wiper is a movable contact where resistance is measured with respect to it and either one of the end terminals.

They are useful for circuits where the resistance needs to be dynamically changed to control the current. They are also popular as voltage dividers .

Suntan is a Hong Kong based manufacturer of Trimming Potentiometers of different types. Including SMD Trimming Potentiometers, Rectangular Trimming Potentiometers, Wirewould Trimming Potentiomers, Phenolic Trimming Potentiometers . Please refer to below product image  of Trimming Potentiometers.
 

Suntan offer full kinds of Trimming Potentiometer as below. Please check http://www.suntan.com.hk/Trimming-Potentiometers/ for data sheet freely.

TSR-3006 - Rectangular Trimming Potentiometer
TSR-3323 - 4 Terminal Square Trimming Potentiometer
TSR-3296 - 5 Terminal Square Trimming Potentiometer
TSR-3362 - 7 Terminal Square Trimming Potentiometer
TSR-3386 - 8 Terminal Square Trimming Potentiometer
TSR-3329 - Circularity Trimming Potentiometer
TSR-3266 - 5 Terminal Square Trimming Potentiometer
TSR-3318 - 6mm Phenolic Round Trimming Potentiometer
TSR-3306 - 6mm Cermet Round Trimming Potentiometer
TSR-3309 - 9mm Round Trimming Potentiometer
TSR-065 - Phenolic Trimming Potentiometer
TSR-3590 - Precision Multiturn Wirewound Potentiometer
TSR-105H - 6 Terminal Trimming Potentiometer
Delivery: 2 weeks
Packing information: 50pcs/ tube
MOQ: 500 pcs

SMD Trimmer Potentiometer Features

• Single-Turn/ Cermet/ Open Frame
• Recommended for reflow processing
• Rotor design compatible with automatic adjustment equipment
• Supplied in 8mm embossed tape, compatible with automatic Assembly equipment
• 3mm size m eets EIA/EIAJ standard trimmer footprint

SMD Trimmer Potentiometer Electrical Characteristics

• Standard Resistance Range 10Ω to 1MΩ
• Resistance Tolerance ±25%
• Adjustment Angle 220°C ± 20°C
• Residual Resistance =<1K, 20Ω>1K, 2%)

SMD Trimmer Potentiometer Pictures

SMD Trimmer Potentiometer Features

Single-Turn/ Cermet/ Open Frame
Recommended for reflow processing
Rotor design compatible with automatic adjustment equipment
Supplied in 8mm embossed tape, compatible with automatic Assembly equipment
3mm size m eets EIA/EIAJ standard trimmer footprint

SMD Trimmer Potentiometer Electrical Characteristics

Standard Resistance Range 10Ω to 1MΩ
Resistance Tolerance ±25%
Adjustment Angle 220°C ± 20°C
Residual Resistance =<1K, 20Ω>1K, 2%)

SMD Trimmer Potentiometer Pictures

Phenolic Trimming Potentiometers Features

(Single Turn/ Phenolic/ Industrial)
(4 Terminal S tyles)

Phenolic Trimming Potentiometers Electrical Characteristics

Standard Resistance Range 100Ω - 2MΩ
Resistance Tolerance ±10%, ±20%, ±30%
Residual Resistance Max 5% of Nominnal Resistance, But under 30Ω
Pesistance Taper Linear (B)
Rated Power 0.1W
Operating Voltage 50V Max
Potational Life Max ±5% change in resistance after 100 unloaded rotations
Load Life Max ±5% change in resistance after 3 hours loaded

Phenolic Trimming Potentiometers Pictures

Related Articles:

Circularity Trimming Potentiometers

7 Terminal Square Trimming Potentiometers

Single-turn Trimming Potentiometers

Multi-turn Trimming Potentiometers

Circularity Trimming Potentiometer Features

(Single Turn/ Cermet/ Industrial/ Sealed)
(5 Terminal S tyles)

Circularity Trimming Potentiometers Electrical Characteristics

Standard Resistance Range 50Ω - 2MΩ
Resistance Tolerance ±5%, ±10%
Absolute Minimum Resistance ≤1% R or 2Ω
Contact Resistance Variation CRV≤3%or 3Ω
Insulation Resistance R1≥1GΩ(100Vac)
Withstand Voltage 500Vac
Effective Travel 280°

Circularity Trimming Potentiometer Pictures

Trimmer capacitors (trimmers) are miniature variable capacitors. They are designed to be mounted directly onto the circuit board and adjusted only when the circuit is built.

A small screwdriver or similar tool is required to adjust trimmers. The process of adjusting them requires patience because the presence of your hand and the tool will slightly change the capacitance of the circuit in the region of the trimmer!

Trimmer capacitors are only available with very small capacitances, normally less than 100pF. It is impossible to reduce their capacitance to zero, so they are usually specified by their minimum and maximum values, for example 2-10pF.

Trimmers are the capacitor equivalent of presets which are miniature variable resistors.