Kingtronics Blog

II. Selection Criteria
The initial considerations for trimmer type selection are:
A. Resolution of adjustment
B. Setability and time to set
C. Physical and environmental conditions
D. Stability of setting required
E. Circuit packaging requirements

A. Resolution of Adjustment
1. Multiturns
• Multiturns provide better resolution than single turns. Models with a longer element exhibit better resolution than those with a short element. Typical multiturn shaft revolutions range from 15 to 20 turns for end to end travel.
• The contact design and stability are important considerations in achieving high resolution. The contact area must be small and the contact must move smoothly in order to provide high resolution. A noisy contact will make accurate setting very difficult.
• All trimmers utilize smooth cermet materials, precious metal wire brush contacts and backlash-free wiper designs that ensure high resolution setability.
• Reference multiturn models:
Square multiturns - 44, 64, 66, 67, 68
Rectangular multiturns 78, 89

2. Single Turns
• Single turn resolution for models with a longer cermet element (larger diameter) is quite respectable. This is especially true with wire brush contacts and smooth cermet films.
• Reference single turn models:
Small diameter - 24, 25, 62, 82
Larger diameter - 72, 91, 93

3. Surface Mount Models
• Single turn - 21, 23, 83
• Multiturn - 44, 84

Today we would like to take this opportunity to introduce you some Chinese traditions.

Qing Ming is a time to remember the dead and the dearly departed. More important, it is a period to honor and to pay respect to one's deceased ancestors and family members. Because it reinforces the ethic of filial piety, Qing Ming is a major Chinese festival.

Literally meaning "clear" (Qing) and "bright" (Ming), this Chinese festival falls in early spring, on the 106th day after the winter solstice. It is a "spring" festival, and it is an occasion for the whole family to leave the home and to sweep the graves of their forebears. Chinese being practical people this sweeping of the graves is given an extended period, that is, 10 days before and after Qing Ming day. Among some dialect groups a whole month is allocated.

Ching Ming Festival, the custom is to enrich interesting, in addition to pay attention to ban fire, grave, as well as hikers, swinging, Cuju, playing polo, Liu inserted a series of custom sports. According to legend, this is because the Ching Ming Festival to Cold Food Observance ban fire, in order to prevent the Cold Food Observance buffet beverages, so we come to participate in some sports, in order to exercise. Therefore, this festival in both sweeping grave,expressing feelings of sorrow, another outing laughter of play, is a distinctive holiday.

A trimmer can be used as potentiometer or rheostat. A potentiometer is a three terminal device typically used to vary voltage. In potentiometric configurations, the wiper terminal is lightly loaded so that wiper current is generally small.

A rheostat is a two terminal device typically used to control current. Wiper current is generally larger in rheostat circuits.

I. Types of Applications
The majority of applications for trimmers occur in electronic circuits. 
Typical uses are in the following devices:
A. Amplifiers
B. Timing circuits
C. Voltage and current regulators
D. Voltage and frequency converters

Kingtronics always make effort to provide customers more information and better service. Our new packing boxes and video have been shown to our customers.

Recently, we adopt attractive and durable new packing boxes to provide better protection for our products, including trimmer, MLCC, tantalum capacitor. The packing photos can be checked by below links.
Capacitor: http://www.kingtronics.com/packing/capacitors-packing.html 
Trimmer: http://www.kingtronics.com/packing/trimming-potentiometers-packing.html
The best way to know Kingtronics is to click below links to watch our video. 
You can know our development history, productive process, product display, exhibition attending...
All our products are produced completely automatic in dust-free plant. That is why we can offer our customers with good products and short lead time.
More efforts will be made to realize better Kingtronics.

Youtube https://www.youtube.com/watch?v=0U5gkrX60CI
Youku  http://v.youku.com/v_show/id_XMTQ5MzYxNTMxNg==.html?from=y1.7-1.2

WELDABILITY:
The ability of materials to be welded together under specified conditions.

TERMINAL STRENGTH:
The ability of the terminals to withstand specified mechanical stresses without sustaining damage that would affect utility of the terminals or operation of the trimming potentiometer.

IMMERSION SEALED:
The ability of the unit to withstand submersion in acceptable cleaning solutions used in normal soldering processes without performance degradation under specific environmental conditions.

Do you buy active components?

We have better prices for these parts compared with MCC, NXP, Diotec, Fairchild... Would you pls check and send me your inquiry/order?

Bridge rectifier MB2S~MB10S MBS T&R RoHS   SPQ:2.5kpcs/reel    UL Approval

Diode rectifier M7 DO-214AC T&R RoHS   SPQ:5kpcs/reel 
Diode rectifier LL4148 LL-34 T&R RoHS     SPQ:2.5kpcs/reel 
Diode rectifier BAV99 SOT-23 T&R RoHS   SPQ:3kpcs/reel

Transistor BC807-16/25/40 SOT-23 T&R RoHS    SPQ:3kpcs/reel
Transistor BC847A/B/C SOT-23 T&R RoHS         SPQ:3kpcs/reel

Notice: we will exhibit at Electronica 2016 this November in Munich, Germany. Will you go there? Welcome to visit our booth and check our samples, catalogues, leaflets, file folder, sample kit...

TORQUE

STARTING (OPERATING) TORQUE:
The maximum moment in the clockwise and counterclockwise directions required to initiate shaft adjustment anywhere in the mechanical travel.

STOP TORQUE:
The maximum static moment that can be applied to adjustment shaft at each mechanical stop for a specified period of time without loss of continuity or mechanical damage affecting operational characteristics.

SOLDERABILITY:
The ability of the terminals to accept a uniform coating of solder under specified conditions.

How fast time flies. Here comes the Easter. Easter is the most important annual religious feast in the Christian liturgical year. Relatively newer elements such as the Easter Bunny and Easter egg hunts have become part of the holiday's modern celebrations, and those aspects are often celebrated by many Christians and non-Christians alike.

Pls kindly note we will have a 4-day holiday from 25th to 28th March. Do you have order for us about electronic components before this holy vacation?

Kingtronics team wish you have a Happy Easter! 

Recently we are so happy to hear that our business partner Sacoel has put Kingtronics logo on their company calendars. It is very pretty and well-designed.

Sacoel took this action because they consider Kingtronics to be a reliable and excellent supplier.

Hope to gain a better business with Sacoel in 2016, and we will support you sincerely all the time. Thanks for all your hard work & endeavors.

We just came back from our CNY holiday,and we had a great holiday.^_^

Now we would like to take a monent to let you know our updated stock about diode M7 and LL4148 after CNY holiday.

Our Stock Notification:
LL4148 LL-34 T&R RoHS SPQ:2.5kpcs/reel 2kkpcs stock available
M7 DO-214AC T&R RoHS SPQ:5kpcs/reel    sold out

M7 is always best seller. Although we had sold out, but we will replenish it asap. If you still have request, pls feel free to contact us, and we will try our utmost to give you the quickest lead time. 

Pls kindly note there are only 2kkpcs LL4148 at present, and it will be sold out this month. Pls catch the last chance because our price is much more competitive with the stock available. 

Thank you for your kind attention and wait for your business cooperation soon.