Kingtronics International Company

Principle of Trimmer Potentiomerets

A fixed resistor with a mechanism to change resistance construct a trimmer potentiometers. The principle is with the changing of resistive element length according a wiper sliding, the resistance will be changed. Use this method, with same sectional area, the resistance can be changed relative to resistive element length, and products can be manufactured in low cost.

            R: Resistance [Ω] 
            ρ: Resistivity [Ω/m] 
            L: Resistive element length [m] 
            S: Resistive element sectional area [m2]

• The position of contact point decide the length of resistive element.
  Resistance between No.1 and No.2 (R12) will become higher if contact point become closer to No.3.
• For easy introduction, we drew the resistive element like a rectangular solid. Actually, almost resistive element is round shape
  (U - shaped) .So the track of wiper is circle, and resistance is decide by the angle of wiper.
   

Change in resistance of Trimmer Potentiometers

There is the relationship between wiper position (angle) and resistance in below figure.

The output wave is besed on below conditions.
Resistive element is round shape (U - shaped) /Single - turn/No whirl - stop.

Construction
Single - turn, no whirl - stop typ    The relationship between wiper position　(angle) and resistance　

 
Feature of Trimmer Potentiometers

By using trimmer potentiometers, it is no problem to set surrounding circuit constant roughly.
Would you please use trimmer potentiometers if it is difficult to decided on a resistance value in your circuit. You can design your circuit roughly and quickly as the result.
　　

Trimmer potentiometer 3296, 3006, 3386, 3266, 3362, 3329, 3590S, 3540S, 065, SMD C3305...

(zastřihovač potenciometr; preset; trimmer potenziometro; тример-потенциометъра; подстроечный потенциометр; підлаштування потенціометр;)
 
We are one of the oldest factories for producing trimmer potentiometer in China since 1990, with mature technology.
Different from other potentiometer suppliers, our potentiometer quality is very good, got approval wiht  ISO & SGS certifications, RoHS Compliant.

We also can make equivalence for brands like Bourns, BI Technology, Tocos, Murata, Vishay, Copal, CTS... 
 
RKT-3006 3/4" (19 mm) Rectangular Trimming Potentiometer
RKT-3266 1/4" (6 mm) Square Trimming Potentiometer
RKT-3296 3/8" (9 mm) Square Trimming Potentiometer
RKT-3323 1/4" (6 mm) Square Trimming Potentiometer
RKT-3329 1/4" (6 mm) Round Trimming Potentiometer
RKT-3362 1/4" (6 mm) Square Trimming Potentiometer
RKT-3386 3/8" (9 mm) Square Trimming Potentiometer
RKT-3309 9 mm Through-Hole Cermet Consumer Trimming Potentiometer
RKT-3540S Precision Potentiometer (Multiturn)
RKT-3590 Precision Potentiometer (Multiturn)
RKT-C3305 Trimming Potentiometer-3mm SMD
RKT-065 Phenolic Consumer Trimming Potentiometer

A trimmer  is a miniature adjustable electrical component. It is meant to be set correctly when installed in some device, and never seen or adjusted by the device's user.
 
Trimmers can be variable resistors (potentiometers), variable capacitors, trimmable inductors. They are common in precision circuitry components, and may need to be adjusted when the equipment is serviced.
 
Trimmers are mounted directly on circuit boards, are usually found in superhet radio and television receivers, in the Intermediate frequency, oscillator and RF circuits.
 
In one words, trimmers are in wide used in our daily life, so the demand of trimmer is huge in the market!

Kingtronics is a manufacturer of Trimming potentiometer since 1990, we are one of the oldest factory for trimming potentiometer.
 
All products are RoHS compliant under our own brand "kingtronics" with registered trade mark "Kt" on the body.

We produce all parts with mature technology, quality is very good with ISO & SGS certifications available, and price is quite competitive in the market!

Please visit our website, you will find more excellent parts!

Precision Potentiometer 3590

Brief description:
Precision Potentiometer 3590, PRECISION MULTITURN WIREWOUND POTENTIOMETER, round, 3590S, Kingtronics
 
Detailed Description:
Standard Resistance Range 1KΩ - 100KΩ
Resistance Tolerance ±5%
Independent Linearity ±0.5%
Effective Electrial Travel ≥3600° - 10°
Treninal Resistance ≤0.2% or 5Ω
Noise ≤3% R or 5Ω
Insulation Resistance R≥1GΩ
Withstand Voltage 101.3kPa710V, 8.5kPa470V
Standard Packaging 10pcs/box, 20pcs/box

Do you need any trimming potentiometers?  
We offer "kingtronics" brand with competitive price,  very speedy delivery and very high quality.  
And our products are well crossed to Bourns Brand, which perform a variety of circuit adjustments in all types of electronic equipment. 
Around the world, trimmers are used in virtually every electronic market.
Here list you the detail features for one of our most popular part RKT-3296
3/8" Square Multiturn Trimming Potentiometer, Cermet, Sealed, 3296W,3296X,3296Y,3296Z,3296P. 

Detailed Description:

Square trimming potentiometer, Multiturn, Sealed, Cermet

Standard Resistance Range 10Ω - 5MΩ

Resistance Tolerance ±5%, ±10%

Withstand Voltage 640Vac

Temperature Range -55℃ ~ +150℃

Effective Travel 28 turns nom

Standard Packaging 50pcs, per tube 

All of our products are with RoHS compliant, what's more we have more than 20 years experience for trimmers, have mature technology!

Please come up to kingtronics, we will be your best choice!

Kt Kingtronics Phenolic Consumer Trimming Potentiometer RKT-065

Kingtronics other trimming potentiometer ( RoHS compliant, ISO/SGS certified )
RKT-3006, RKT-3266, RKT-3296, RKT-3323, RKT-3329, RKT-3362, RKT-3386, , RKT-3309, RKT-065, RKT-C3305, RKT-3540S, RKT-3590.
 
Brief description:
Single Turn/ Phenolic/ Industrial
 
Detailed Description:
Standard Resistance Range  100Ω - 2MΩ
Resistance Tolerance  ±30%
Residual Resistance  Max 5% of Nominnal Resistance, But under 30Ω
Resistance 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
 
Rotational Angle  200° ± 20°
Rotational Torque  30~350g.cm
Stop-end Strength  500g.cm minimum

-- ISO 9001: 2008 manufacturer, 2 factories, ISO & UL & SGS certified.
-- Meet us at Electronica 2012, Booth No.: B6.437/5, 13-16 November ,2012, Munich, Germany.
-- Meet us at electronicAsia 2012，Booth No.: 5G-D12, 13-16 October 2012, in HK
　
Pls contact Ms. Sunny Chen: sales4@kingtronics.com

Since 2012, we have been running the change to new marking "Kt" on potentiometer body. It needs some time to arrange for it, so there will be still some samples and goods with old marking "King". Anyway, both "King" and "Kt" marking are produced by ISO manufacturer Kingtronics. Thanks for your understanding and apologize for all the inconvenience.

Cross reference are subject to change without notice. For detailed specification, please refer to our datasheet only

Kt Kingtronics Trimming potentiometer logo change to "Kt"
 
Hello my dear friend, did you check our price for  trimming potentiometer 3296W? It is very competitive, right?
 
Pls remember to send us your inquiry when you have demands. Also pls help to promote to your clients or introduce us some manufacturers who use our components.
 
Today I have a very important news to tell you--regarding trimming potentiometer logo change.
 
If you already buy trimmer from us or saw it on the market, I think you know our logo before is "King", but since this month we are changing the log from "King" to "Kt" gradually.
 
Pls pay attention to our website and notice the latest update http://www.kingtronics.com/trimming-potentiometers/
 
If you have inquiry/order, pls email to sales2@kingtronics.com
 

Kt Kingtronics Trimming potentiometer 3296 series
 
Dear all, do you start your summer holiday? Hope can receive your inquiry once you back office.
 
This year our trimming potentiometer help us win many good orders. Are you also in need of them? As one of the oldest facotries for trimming potentiometer, our trimmer is of excellen quality and competitive price. Our delivery is also faster than other suppliers such as Bourns.
 
If you are power supply manufacturer or know someone in this field, pls do introduce us and send us some inquiry. We have best offer for you any time.
 
Here I have a very good offer for your check. Pls revert to me and help to promote. Thank you so much.
 
RKT--trimming potentiometer(ISO & SGS certified since 1990)
RKT-3296W-102-R US$0.064/pc
RKT-3296W-103-R US$0.064/pc
　
Besides, Kingtronics is searching for distributors worldwide. Are you interested to become our distributor?
 

Hello my dear friend,
 
Wish you enjoy a nice weekend. :-)
 
This time our starring role is Trimming potentiometer, which is a kind of variable resistor and called trimmer and preset. It's meant to be set correctly when installed in some device, and never seen or adjusted by the device's user. It can be used in many fields such as inspection machine, remote control, amplifier, controler, smoke detector...
 
Are you manufacturer in these fields or distributor for electronic components? Do you have demand for trimming potentiometer? Could you pls send me your request and I will reply you soon.
 
We Kingtronics is one of the oldest factories for trimming potentiometers in China. Our Trimming Potentiometer is ISO &SGS certified. With more than 20 years' development, our trimmer sell to many famous distributors, and can cross to many famous brands like Bourns, Murata and Vishay. We can offer you very good price and 3-4 weeks delivery.
 
Trimming potentiometer: 3006 3386 3266 3296 3329 C3305 065
 
Could you pls help us promote to your clients or friends who use or buy them? Sending me your inquiry and let me quote best price for you, ok?
 
Look forward to your response and pls email to sara@kingtronics.cn