Trimming-potentiometers, cermet trimmer  (Cross to Bourns, Murata, Tocos, Vishay, BI technology)

Output 5KKpcs/month, more than 20 years' production experience 

Good quality and free samples are available for quality test

L/T: 3-5 weeks for common items

ISO & SGS certified &  RoHS compliant 

Stop-Clutch: (SC)
A device which allows the wiper to idle at the ends of the resistive element without damage as the adjustment shaft continues to be actuated in the same direction.

Stop-Solid: (SS)

A positive limit to mechanical and/or electrical adjustment.


The mounting of one trimming potentiometer adjacent to or on top of another utilizing the same mounting hardware.

Theoretical Resolution :

(Wirewound only) The theoretical measurement of sensitivity to which the output ratio may be adjusted and is the reciprocal of the number of turns of wire in resistance winding expressed as a percentage.
N = Total number of resistance wire turns.
1/N X 100 = Theoretical resolution percent

Printed Circuit Terminal: (P, W&X)
Rigid uninsulated electrical conductor so arranged, suitable for printed circuit board plug-in.

Solder Lug Terminal: (S)

Rigid uninsulated electrical conductor so arranged, suitable for external lead attachment.

Wiper: (SL)

The wiper is the member in contact with the resistive element that allows the output to be varied with the mechanical member adjustment.

Multiturn Adjustment : 
Requires more than 360° mechanical adjustment to cause the wiper to traverse the total resistance element.

Terminal : 

An external member that provides electrical access to the resistance element and wiper.

Leadwire Type: (L)

Flexible insulated conductor.

Resistance Element :
A continuous, unbroken length of resistive material without joints, bonds or welds except at the junction of the element and the electrical terminals connected to each end of the element or at an intermediate point such as a center tap.

Adjustment Shaft :

The mechanical input member of a trimming potentiometer which when actuated causes the wiper to traverse the resistance element resulting in a change in output voltage or resistance.

Single Turn Adjustment :

Requires 360° or less mechanical input to cause the wiper to traverse the total resistance element.

For more products information please check:

Trimming Potentiometers:
An electrical mechanical device with three terminals. Two terminals are connected to the ends of a resistive element and one terminal is connected to a movable conductive contact which slides over the element, thus allowing the input voltage to be divided as a function of the mechanical input. It can function as either a voltage divider or rheostat.

Wirewound Trimming Potentiometer:

A trimming potentiometer characterized by a resistance element made up of turns of wire on which the wiper contacts only a small portion of each turn.

Non- Wirewound Trimming Potentiometer:

A trimming potentiometer characterized by the continuous nature of the surface area of the resistance element to be contacted. Contact is maintained over a continuous, unbroken path. The resistance is achieved by using material compositions other than wire such as carbon, conductive plastic, metal film and cermet.

For more products information please check

The combination of proprietary cermet element technology, precious metal brush contacts and swaged pin element connections used in BI trimmers permits the manufacture of precision, high quality trimmers that span the resistance range from 10 ohms to over 5 megohms. The small size and planar construction of these trimmers minimize stray circuit reactances and permit the trimmers to perform well in many high frequency applications.


Precision brass leadscrew cuts its own grooves in the teflon rotor so that the operation of the rotor is free of backlash. Setability is excellent.

Sealing Grooves

Leadscrew has specially cut grooves to ensure a watertight seal.

Ceramic Substrate

High density substrate provides an excellent base for the element and is a good conductor of heat.

Cermet Element

BI’s proprietary cermet element matches the materials in the wirebrush so that CRV is minimized and the high temperature setability is excellent.

Swaged Pins

BI’s pin connections, which are swaged to the substrate, are free of solder and maintain high conductivity with time and temperature cycling.

Learn more:

Around the world, trimmers are used in virtually every electronic market. Typical applications include measuring linear distance, angles or rotations in production equipment, industrial test and measurement equipment, and medical equipment.

Kingtronics is one of the most popular manufacturers in the electronics industry to offer mil-drawing qualified surface mount sealed trimmers. Our 3269 series product line offers the largest array of surface mount, sealed trimming potentiometers in the industry, and takes full advantage of Kingtronics core competencies in ceramics, thick-film printing, welding and brazing, resulting in reliable electronic components.

Kingtronics 3269 series trimming potentiometers support all kinds off circuit adjustments in all types of electronic equipment. The variety of physical configurations available and the ability to withstand today's manufacturing environment offers the designer flexibility in selecting the best trimmer for the application.

•  Stable, infinite resolution cermet element 

•  Vertical and horizontal adjust styles 

•  Multiturn trimmer 

•  Cermet Trimming Potentiometer 

•  Industrial / sealed trimming potentiometer 
•  3 terminal styles:3269W, 3269X, 3269P

•  Mounting Type:Surface Mount 

•  Number of Turns:12 

•  Power (
Watts):0.25W, 0W 
•  Resistance (Ohms):10 ~ 5M

•  Resistive Material:Cermet 

•  Temperature Coefficient:±250ppm/°C 

•  Termination Style:Gull Wing 

•  Tolerance:±10% (100Ω ~ 1M) ;
                       ±20% (R<100Ω, >1M)

For more parameter details, pls refer to our datasheet :

* Body small, linear uniform.
* Best resistance from the entire circuit to adjust the electrical circuit.

1, Mainly used for potential control of all kinds of radios mobile communication radios, wireless equipment;
2, DVD, car audio, audio and other common AV equipment;
3, Seat heating for the automotive interior, various control dimmers, chaotic water etc;
4, For residential equipment of various control.

Trimmer potentiometers also known as semi-variable potentiometer, They are used to measure or divide voltages, and to protect or control circuits.

Classification by structure:
Lap, Multi-turn(Kt Trimming Potentiometer: RKT-3540S,RKT-3590), Single-Joint, Double, Multi-tap Type, With Switch, Locking, Non-Locking Type, SMD Potentiometer.

Kingtronics potentiometers (Kt trimming potentiometer) include following part number: 
RKT-3006, RKT-3266, RKT-3296, RKT-3323, RKT-3329, RKT-3362, RKT-3386, 
RKT-3318, RKT-3309, RKT-065, RKT-105H, RKT-C3305, RKT-3540S, RKT-3590.

For more information, please visit

Contact us

Tel: (86) 769 8118 8110
Tel: (852) 8106 7033
Fax: (852) 8106 7099
Skype: kingtronics.sales


Kingtronics International Company was established in 1995 located in Dongguan City of China to handle all sales & marketing for factories located in Chengdu, Sichuan and Zhaoqing, Guangdong, China. In 1990, we established the first factory to produce trimming potentiometer and in 1999 we built up new factory in Zhao Qing, Guangdong. Now with around 850 workers, Kingtronics produce trimming potentiometers, dipped tantalum capacitors, multilayer ceramic capacitors, and diode & bridge rectifier. We sell good quality under our brand Kingtronics, and Kt, King, Kingtronics are our three trademarks. All our products are RoHS compliant, and our bridge rectifier have UL approval. Please visit our Products page, you could please download all our PDF datasheet and find cross reference for our Trimming Potentiometer and capacitors.

Tantalum and Ceramic Capacitors Cross Reference ↓ Download
Diodes & Rectifiers List(PDF: 97KB) ↓ Download
Trimming Potentiometer Cross Reference ↓Download

Meet Kingtronics in Moscow soon
Convention and Exhibition Centre,HongKong
Date: 13-16 October, 2019
Booth No.: 5G-C26

Meet Kingtronics in Munich soon
New Munich Trade Fair Centre, Germany
Date: 10-13 November, 2020
Booth No.: To be advised



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