Trimmers Basic:

In its most common form, a trimmer is simply a device containing a resistive element, and a wiper, or adjustable tap, contacting the element. The wiper can be mechanically moved to vary the amount of voltage or resistance in the circuit. The resistive element is usually laid out in linear or a circular configuration:

 3mm SMD Trimmer: RKT-C3305 (Cross to Bourns 3303 and Murata PVZ3A)

Cermet Trimmer: RKT-3296W/X, 3006P, 3386F, 3266W/X, 3329H, 3362P...
Precision Potentiometer: RKT-3590S, RKT-3540S
 
 

 

Applications: 

1. Air conditioners  29. Telephones  57. Video game systems 
2. Breadmakers  30. Fax machines  58. Toys & kits, electronics 
3. Coff ee/tea makers  31. Camcorders  59. Radio controls for models 
4. Dental hygiene devices  32. Electronics for cameras  60. Metal detectors 
5. Dishwashers  33. Digital cameras  61. Power tools 
6. Door chimes, electronic  34. Cassette players for autos  62. LCD modules 
7. Door opening systems  35. Car stereos  63. Sensors 
8. Food processors  36. Auto repair instruments  64. Optical transceivers 
9. Freezers  37. Cassette recorders  65. Televisions 
10. Kitchen appliances  38. Compact disc players  66. Digital TVs 
11. Microwave ovens  39. Hi-fi amplifi ers  67. TV receivers 
12. Kitchens  40. Hi-fi cassette decks  68. VCRs 
13. Refrigerators  41. Stereo systems  69. HDTVs 
14. Stoves/ovens  42. Tape recorders  70. Cable set-top boxes 
15. Controls for white goods  43. Turntables  71. Satellite TV receivers 
16. Environmental controls/equipment  44. Receivers  72. DVD players 
17. Electronic insect repellants  45. Radios  73. DVD recorders 
18. Intercom systems  46. Radio cassette recorders  74. Printers 
19. Smoke detectors  47. Portable stereos  75. Photo printers 
20. Th ermostatic controls  48. Music centers  76. Laptops 
21. Trash compactors  49. Music mixing equipment  77. Computers 
22. Ultrasonic devices  50. Organs and musical instruments  78. Computer monitors 
23. Amateur and CB radios  51. Clock radios  79. Computer power supplies 
24. Cordless telephones  52. Clocks  80. Home networks 
25. Telephone amplifi ers  53. Digital table clocks  81. Personal computers 
26. Telephone answering machines  54. Educational toys  82. Handhelds 
27. Telephone dialers, automatic  55. Electronic games  83. PDAs 
28. Telephone sets, digital  56. Game units  84. Portable CD 

Kingtronics is potentiometers manufacturer since 1990. Trimming potentiometers are Kingtronics' first products. On Kingtronics' trimming potentiometers body, we mark "Kt" due to insufficient space. Actually our registered brand in Hong Kong is “Kingtronics and Kt”.

Now, Kingtronics upgrades trimming potentiometers packaging box . There are 3 sizes of different packing box, which can be used for all types of trimming potentiometers .We choose blue as the color of Kingtronics. Our website, catalog, poster, envelope, company logo and all other things related to Kingtronics, we choose blue. Blue stands for our Kingtronics people spirit --- Innovation, efficiency and foucs

Compared with out previous one , we list all the strong products of trimming potentiometers on the box. Our brand name and contact way are also printed on it. Therefore, whether you are interested in other products of potentiometers, or have any inquiry, you can contact us rapidly.

Below link provides more information about trimming potentiometers, hoping it is helpful to you.
http://www.kingtronics.com/trimming-potentiometers/

Recently SMD 3mm Trimmer C3305 are pretty popular in the market, we sell large quantity with much competitive prices, received satisfactory feedback from customers.Welcome to send us inquiry.

Short L/T, Stable Quality, Surprising Prices!!!
ISO, SGS and UL Certified Manufacturer since 1990, one of the oldest factories producing cermet trimmer in China.
RoHS Compliant

RKT-Trimmer Potentiometer Cross Reference

Kingtronics

B.I.(Beckman)

Bourns

Murata

Vishay

Tocos

RKT-C3305

17T

3303

PVZ3A(T)

TSO33S

VG025CHXT

RKT-3362P

25P 

3362P

PVC6A

T73YP/76P

GF063P

RKT-3329P

62M,82M

3329P

PV32P

75P

RJC06P

RKT-3329H

82P

3329H

PV32H

75H

RJC06W

RKT-3006P

89P

3006P

PV23P

43P

RJC097P

RKT-3386P

72P

3386P

PV34P

T20YP/63P

 

RKT-3296W

67W

3296W

PV36W

T93YA/64W

J9W

RKT-3296X

67X

3296X

PV36X

T93XA/64X

J9X

RKT-3266W

64W

3266W

PV37W

T6YB/T63YB

RJC261W

RKT-3266P

64P

3266P

PV37P

1248P/T6ZB

 

RKT-3266Y

64Y

3266Y

PV37Y

T6YA/T63YA

 

RKT-3309P/W

 

3309P,3309W

 

 

 

RKT-3590S

 

3590S

 

 

 

Brief Description:
Trimmer 3386, 3/8" Square Single Turn Cermet Trimming potentiometer, 3386B, 3386C, 3386H, 3386J, 3386W, 3386S, 3386X, Kingtronics.

Detailed Description:
Standard Resistance Range 10Ω - 5MΩ
Resistance Tolerance ±5%, ±10%
Absolute Minimum Resistance ≤1% R or 2Ω
Contact Resistance Variation CRV≤3%
Insulation Resistance R1≥1GΩ(100Vac)
Withstand Voltage 600Vac
Effective Travel 300°
Standard Packaging 50pcs, per tube

RoHS compliant
20 years manufacturer, with good quality and attractive price
Kingtronics own brand “KINGTRONICS”

Kingtronics other trimming potentiometer:
3296 3006 3266 3362 3323 3329 3309 3590 3540 065 063 C3305 

Some customers said Murata stop some trimmer like PV34; in Kingtronics (Kt) , the equivalent part number is RKT-3386.

Kingtronics is one of the oldest trimmer potentiometer factory in China, with ISO, SGS certified. We sell top quality for trimmer in China.

Kingtronics (Kt) Trimming Potentiometer Cross Reference Guide 

Kingtronics P/N

B.I. (Beckman) 

Bourns

Murata

Vishay

Tocos 

RKT-3362P

25P 

3362P

PVC6A

T73YP/76P

GF063P

RKT-3329P

62M,82M

3329P

PV32P

75P

RJC06P

RKT-3329H

82P

3329H

PV32H

75H

RJC06W

RKT-3006P

89P

3006P

PV23P

43P

RJC097P

RKT-3386P

72P

3386P

PV34P

T20YP/63P

 

RKT-3296W

67W

3296W

PV36W

T93YA/64W

J9W

RKT-3296X

67X

3296X

PV36X

T93XA/64X

J9X

RKT-3266W

64W

3266W

PV37W

T6YB/T63YB

RJC261W

RKT-3266P

64P

3266P

PV37P

1248P/T6ZB

 

RKT-3266Y

64Y

3266Y

PV37Y

T6YA/T63YA

 

RKT-3309P/W

 

3309P,3309W

 

 

 

RKT-C3305

17T

3303

PVZ3A(T)

TSO33S

VG025CHXT*

RKT-3590S

 

3590S

 

 

 

Example1: Flicker adjustment for LCD (Liquid - crystal display)
To adjust the reference voltage (VCOM) of LCD.
With inappropriate reference voltage, there will be flicker on LCD screen.
Use trimmer Potentiometers to adjust reference voltage for flicker restraining.

LCD has some flickers if the voltage is not suitable for LCD.
 

You can reduce the flickers when you adjust the voltage by using trimmer potentiometer.
 

Example2: Gain adjustment for Blu-ray, DVD, CD disc reading optical pick - up.

As record media Blu-ray, DVD and CD etc. usually be used, and we use optical pick - up for the data 
reading and writing from disc. In an optical pick - up, there is a light - sensitive element to detect reflected 
light from disc.And a trimmer potentiometer is used to adjust the sensitivity of this light - sensitive element.

Circuit example Playback system device (ex, DVD, CD, playback)

Example3: Sensitivity adjustment for sensor products.

There are all kinds of sensors around our life.

  • Lights turn on automatically when human be detected.
  • Smoke detector for fire preventing.
  • Parking assist system for distance from car to wall.
  • Product detection sensor in factory.
     

 For these sensors, trimmer Potentiometers are used for suitable sensitivity.
 

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.

Kingtronics (Kt) Trimming Potentiometers Product List

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!

Contact us

Tel: (86) 769 8118 8110
Tel: (852) 8106 7033
Fax: (852) 8106 7099
E-mail: info@kingtronics.com
Skype: kingtronics.sales
MSN: kingtronics-sales@hotmail.com
Web: www.Kingtronics.com

About

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
Chip EXPO 2017
Chip EXPO 2017
"Expocentre" Moscow Russia
Date: Oct 31 - Nov 2nd, 2017
Booth No.: B 20

Meet Kingtronics in Munich soon
Electronica 2018
Electronica 2018
New Munich Trade Fair Centre, Germany
Date: 13-16 November, 2018
Booth No.: To be advised

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