jbcapacitors blog

jb Capacitors Company is an old ISO manufacturer, we provide our products with competitive price, reliable quality and short delivery time, around 5~7 weeks. Some hot items have stocks.

Our strong capacitors series are Plastic film capacitors, Aluminum radial Ecaps, SMD Aluminum Ecaps, Polymer Aluminum Solid Capacitors, Ceramic Capacitors, Tantalum Capacitors and Super Capacitors.

We have wide series can be excellent replacement of Epcos, Panasonic, Samwha, Nichicon, NIPPON CHEMI-CON, Rubycon, Elna, SAMXON, and YAGEO.

Please contact us with your inquiry! or ask for free samples!

jb Capacitors company produce various of SMD E-cap type, they can be used in different applications. We support very good price and short delivery time.

Below is our most popular series cross reference for you. If you have needs, please contact us asap. 

Screw type become one of our strong series recently. The lead time can achieve 3~5 weeks. With all the delay of current raw material situation, this is very fast lead time. We offer Fresh and Original products, not stock. jb is dedicated to offer the best service to our customers.

For JML series, it has wide range of temperature of -40°C~+105°C and -25°C~+105°C respectively. For low voltage of 10V~100V, the temperature is -40°C~+105°C, on the other hand, 160V~400V has the range of -25°C~+105°C. That is only standard specification. jb has the customized service.

The application of JML is used for computers, communication powers Hi-ripple circuit of electric vehicle, electric train, general-purpose inverter.

JYC series is designed with Compact size with low dissipation factor, Low voltage coefficient, Epoxy encapsulated, Up to 15KV DC working voltage.

They are qualified for high voltage applications, such as DC-DC converters, Voltage multipliers, Radio and TV receiver, Modems, Interfaces, HV power supplies, Electrostatic cleaning power supplies, Ion generator power sources, Baggage scanner, and Industrial laser etc.

JYC series can be customized according to special requirements, take internal parallel or series design to achieve high voltage, large capacity, high operating frequency, high withstand impulse voltage, ultra-low partial discharge requirements and other requirements can meet the different needs of customers.

Recently we receive some good project for JFT Class X1 MKP film capacitor, it seems the market needs increased. We offer very good price, high quality and short delivery time for JFT series.
Please send us inquiry if you have needs.

JFT - Metallized Polypropylene Film AC Capacitor Class-X1 
Features:
* This specifications cover the requirements of jb Metallized Polypropylene
* Film AC Capacitor (Interference Suppressors Class-X1)

Specifications:
Capacitor Class “X1” stands for X1 class
Climatic Category: 55/ 105/ 21
Operating Temperature Range    -55°C~ +105°C (for which the capacitor can be operated continuously at rated voltage.
Rated Voltage   300V.AC, 440V.AC
Capacitance Range : 0.0022 ~ 4.7μF
Capacitance Tolerance: ±10%
Insulation Resistance: (I.R.) >=15,000 MOhm (C<=0.33μF) >=5,000 MOhm (C>0.33μF)
Dissipation Factor:(DF) 0.001 (0.1%)max. at 1KHz

Not long ago, we’ve launched a new series of JGZ–Radial, Snap-in, Screw Type Super Capacitors. To replace rechargeable batteries, super capacitors is one way to satisfy.
For nanotechnology, this offers a new method of storage for energy. Super capacitors can recharge within seconds and withstand virtually unlimited charge cycles.

jb is offering different type of super capacitors, but today, this is about JGZ series. According to different value, it has different type. It can be used in different application including automobiles, tramways, fork-lifts, wind turbines, electricity load leveling in stationary etc.

There are two voltage value for JGZ series, please find the below is the specification for reference. If you have further questions, and would like to know the price, please contact us for more information.

Do you still remember our JYM series which we introduced to you in while ago?

JYM is Multilayer (mono) Axial & Radial Ceramic Capacitors, his provide Miniature size, wide capacitance, tape and reel packaging available for auto-placement.

Wide range of applications: Such as microwave ovens in home appliances, induction cookers, air conditioner controllers, energy-saving lamp ballasts, chargers, currency counters, paper shredders, building video intercom systems, audio equipment...etc.

New series coming up with very nice price! we support few weeks. lead time and reasonable price, welcome to contact us.

A trimmer capacitor is a variable capacitor used for initial calibration and recalibration of equipment. It is commonly mounted directly on a PCB and accessed only by professional repairmen, not the end-user.

Characteristics
Voltage rating, capacitance range, polarity.
Trimmer capacitors can be rated for voltages up to 300 volts, although voltage ratings of up to 100 volts are much more common. Since trim caps are variable capacitors, they come in a capacitance range rather than a
single capacitance value. The minimum capacitance is usually between 0.5 pF and 10 pF, while the maximum capacitance is usually between 1 pF and 120 pF. The actual capacitance value can be varied between the
minimum and maximum capacitance values for a given trimmer capacitor, but it can never be set to zero. It is worth noting that trimmer capacitors are not polarized.

Tolerances and accuracy
Trimmer capacitors do not boast a good capacitance value tolerance. Sometimes, the tolerances can be as high as -0 to +100%. This means that a trimmer capacitor can have a maximum capacitance two times larger
than nominal. However, bad tolerances do not pose a great problem to engineers because trimmer capacitors are variable. Even if the maximum value is different between individual capacitors, they can still be set by turning the screwdriver a certain angle. Accuracy depends mostly on the operator, as he can choose to spend more time in order to set the capacitor to a desired value. Often, trimmer capacitors are set by robots instead of human operators, and they can achieve much better precision. In order to achieve a better accuracy, it is advised to use a non-metallic tool, since metal screwdrivers will introduce a source of capacitance that will vary the capacitance value when the tool is moved away from the capacitor.

Construction and properties of trimmer capacitors
There are two types of trimmer capacitors: air trimmer capacitor and ceramic trimmer capacitor. These two types use different materials as the dielectric. Both types use rotating action to change the capacitance value.
The construction of trimmer capacitors is similar to the construction of their larger variant, the variable capacitor. Trimmer capacitors can be made of semi-circular metal plates. One is fixed, while the other can be rotated using a screwdriver. The user changes the capacitance by rotating the shaft and increasing or reducing the amount of overlap between the two plates. Gear mechanisms may be used to improve the precision by allowing multiple turns between the lowest and highest settings.

Another way to make a trimmer capacitor is to place a metallic screw in a non-conductive threaded cylinder. The screw represents one electrode, while the other is located at the base of the cylinder. By rotating the screw, the distance between the two plates is varied which results in a change of capacitance. This construction is used in RF and microwave applications. 

Jb Capacitors Company is an ISO manufacturer. We offer competitive prices and short delivery time.
If you are looking for ceramic capacitors, please check below our product series and their features. They can be used in various fields.
Please feel free to contact us with RFQ directly, and we are willing to recommend suitable products for you.

JYA - X1 / Y1(CD 400VAC) and Y2(CE 300VAC) Safety Standard Recognized Capacitors
-Ideal for across the line applications
-Compact size
-Cost effective product
-Safety standards recognized

JYC - High Voltage Ceramic Radial Type Disc Capacitors
-Operating Condition Range -25°C to +85°C.
-Rated Working Voltage 1KV – 15KV DC.
-Use for coupling, and by-pass circuit there are a stable and high reliability products.

JYM - Multilayer (Mono) Ceramic Capacitors
-Coating by epoxy resin, creates the excellent humidity resistance and prevents body from damaging during soldering and washing.
-Miniature size, wide capacitance, tape and reel packaging available for auto-placement.
-Industry standard size and various load spacing available.