Kingtronics Blog

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 

Kingtronics specializes in manufacturing trimming potentiometers, tantalum & ceramic capacitors, diode and bridge rectifiers.
We are a professional electronic components manufacturer with over 20-year history. Could you pls check below Kingtronics Strong Series Products?
---ISO 9001: 2008 manufacturer, 2 factories since 1990, ISO/UL/SGS certificates

1. QKT--Quartz Crystal
    QKT-HC49U, QKT-HC49S, QKT-HC49SMD
    http://www.kingtronics.com/pdf/Kingtronics-Crystals-list.pdf

2. RKT--Trimmer Potentiometer(Cross to Bourns,Murata,Tocos,Vishay, BI technology)
    3296 3006 3386 3266 3362 3329 3590S SMD C3305 3mm SMD trimmer (3303, Murata PVZ3A)
    http://www.kingtronics.com/pdf/Kingtronics-Potentiometer-part-list.pdf

3. MKT--Radial Multilayer Ceramic Capacitor, Lead, Through Hole;
　AKT--Axial Lead Multilayer Ceramic Capacitor
    0.01uF 50V X7R +/-10% P:5.08mm Bulk RoHS
   http://www.kingtronics.com/pdf/Kingtronics-ceramic-multilayer-capacitor-part-list.pdf 

4.TKT-- Dipped Tantalum Capacitors, Radial Type, Lead Space.
   1uF 35V +/-20% P: 2.54mm Bulk RoHS
   http://www.kingtronics.com/pdf/Kingtronics-tantalum-capacitor-part-list.pdf 

5. Diode and Bridge Rectifier
    Diode S1M, SM4007, RS1M, M7, LL4148, BZV55C, 
    Bridge Rectifiers MB2S, MB6S, MB8S (S380), DB107S
    http://www.kingtronics.com/pdf/Kingtronics-diode-and-bridge- part-list.pdf

In the past several years, Kingtronics has devoted in lots of social activities.
This year, we went to Guangxi province, this is the second time we have been there, to know the people and social life there.

Here we would like to thanks for the volunteers in Guangxi. Without your help, we can not give out our love. Without your help, the needed can not enjoy our offer.
You are just like an angel and a bridge to connect the two individual parts together. 

At the same time, Kingtronics has plan to spread our help to more and more needed one.
Please join us to build a more beautiful and harmonious world.

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 CKT series tantalum chip capacitors have high volumetric efficiency and stable electric perfermances.

CKT surface mount tantalum capacitors can offer 6 sizes: P size (2012), A size (3216), B size (3528), C size (6032), D size (7343), E size (7343). 

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.

Dear Valued customers,
 
We invite you to help us promote our products, we can give your full support, like our catalogue/ leaflet, sample kit, filefolder and mutiltool.
 
http://www.kingtronics.com/pdf/Kingtronics-Promotion-Literature.pdf

My dear friend, best wishes for the New Year. May 2013 be a very prosperous year to you! Personally and professionally!

We were keeping in touch in the past year. I guess you already know more about our components below? Hope can do some business with you this year! Look forward to your 1st order/inquiry in soon.

Active Components:

Diode: M7 LL4148 S1M SM4007 6A10 BZX55 BZV55C BZX85C 1N4729A...
Bridge rectifier: DB107S MB6S KBL410 KBPC3510 GBU410...

Passive Components:
Radial multilayer ceramic capacitor & dipped tantalum capacitor
Trimming potentiometer 3006 3266 3296 3329 3362 3386 3540 3590 C3305...

Our sales office won't be closed during the Chinese Spring Festival. Pls feel free to send us your requirements to info@kingtronics.com