jbcapacitors blog

jb has regular X2 capacitors, called JFW with 310VAC. We also have the series that has high stability of capacitance under severe ambient condition such as high temperature and high humidity. The series name is JFWT, it is kind of Interference Suppression Capacitors or X2 Safety Capacitors. More importantly, it can be used in the application of across-the-line or series connection, whereas JFW is used in parallel connections. JFWT’s application is Power meter, LED driver, Sever ambient condition applications and so on.

Both JFWT and JFW, they have safety approval of VDE, ENEC and UL approvals. So that you don’t have to worry about the quality, it has certain quality assurance. jb has been produced film capacitors for long time, we are expert in this field. We have stock available for hot sell capacitance items, which provide the short delivery time. 

As usual, jb Capacitors Company offers wide range capacitors. One of jb’s strong series is JFW - X2 Metallized Polypropylene Film Capacitor (310VAC). It is continually being a strong series with unbeatable price and quality on this market. Further, JFW is upgraded, it can meet +105C originally. But, now, it can meet +110C.

The quality of JFW is very good, it has it has safety approval of VDE, ENEC and UL approvals. In other words, there is certain quality assurance. Furthermore, it has fast delivery time with stable supply. JFW can be used on Across-the-line, interference suppression circuit, Fire Alarms, Call systems, induction loops and so on.

jb has extensive experience on the production of Film capacitors, and it has many film capacitors series including High Voltage. The JFP and JFQ, they are both high voltage capacitors. JFQ is High Voltage Box Type Metallized Polypropylene Film Capacitor, the other hand, JFP is High Voltage Dipped Type Metallized Polypropylene Film Capacitor. They have slightly different.

For film capacitors, jb can offer fast lead time, high quality with competitive price. And, for most of our capacitors, we can customized for customer.
Please check below is their features. For further information, please contact to our sales team via our official email address.

JFP - High Voltage MKP Features:
Extended foil, flame retardant epoxy coated.
Coated with flame retardative epoxy resin which provides from humidity and mechanical damage.
Temperature coefficient is negative and variety linear over the operation temperature.

JFQ - High Voltage Box Type MKP Features:
Metallized structure, widely used in high voltage, high frequency and pulse circuit.
Negative temperature coefficient of capacitance.
Excellent active and passive flame resistant abilities.
Low loss and small inherent temperature rise.

welcome to visit our Youtube video:
jb JFL Metallized Polypropylene Film apacitor:https://youtu.be/k10XraBxvB4

We manufacture and market Ceramic Capacitors, Including CD Y1 400VAC and CE Y2 300AC Safety Standard Recognized Capacitors and 1KV, 2KV, 3KV,4KV, 5KV, 6KV, 8KV, 10KV, 15KV DC High Voltage Ceramic Capacitors.

JYA - 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

Are you using X2 capacitors? Have you used our JFW before?
We manufacture X2 Metallized Polypropylene Film Capacitor, which also named Interference Suppression Capacitors or X2 Safety Capacitors, and we sell quite competitive prices.
Its Non-inductive, (UL940V-0) plastic case sealed with epoxy resin can be used in across-the-line and interference suppression circuit.

We provide JFW with short delivery time. Some hot items can be ready in about 3 weeks.
Because of its High quality commitment and Good prices support. It also receive lots of awesome feedback from our customers.

If you are using Kemet(R46) , Epcos(B81 130, B32921~B32924) , Pilkor(PCX2 337, PCX2339) , EvoxRifa(PH840M, PH840E) , Vishay(MKP3382, MKP3392) , Wima(MP3 X2, MKPX2) , Iskra(KNB 153X, KNB156X) and Panasonic (ECQU) series, you can send me to get our best price!

jb Capacitors manufactures and markets Ceramic Capacitors, Including CD Y1 400VAC and CE Y2 300AC Safety Standard Recognized Capacitors and 1KV, 2KV, 3KV,4KV, 5KV, 6KV, 8KV, 10KV, 15KV DC High Voltage Ceramic Capacitors.

Class X2 and Y2 are the most commonly used safety-certified capacitors. X1 and Y1 safety capacitors are used in industrial settings.

Y Capacitors: Also known as "line to ground capacitors" (line bypass.) Y capacitors are used in applications where failure of the capacitor could lead to the danger of electrical shock to the user, if the ground connection is lost.

JYA - 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.

Not long ago, we’ve launched a new series of JYA - Y1(CD 400VAC) and Y2(CE 300VAC) Safety Standard Recognized Capacitors. Class-Y capacitors are safety-certified. They also are designed and used in across the line applications. These safety capacitors are also known by other names, such as AC line filter safety capacitors and EMI/RFI suppression capacitors.

It can be used in many electronic device applications including Line disturbances suppression, Motors and motor controls, Relays, Switching power supplies, Inverters, Line-to-line (Class X) filtering, Line-to-ground (Class Y) filtering, Antenna coupling, Primary and secondary coupling, Network and security protection, audio visual product,, Home Appliance, new energy, Industry automation, LED.

Main Specifications:

jb capacitors company have very competitive offer for below Ceramic capacitors.

JYA-Y1 and Y2 AC Safety Standard Recognized Capacitors

Operating Temperature   -25°C~ +85°C
Capacitance Range  10pF TO 10000pF
Capacitance Tolerance    ±10%, ±20%, +80-20%
Rated Voltage  AC 125V, 250V, 300V, 400V
Temperature Cofficient  2B(Y5P)±10%、2E(Y5U)+22%~-56%、2F(Y5V)+22%~-82%
Dissipation Factor (tan δ)     2B: 2.5% max. at 25℃ and 1 KHz, 1±0.2 Vrms.
Insulation Resistance at 20℃ 2E/2F: 2.5% max. at 25℃ and 1 KHz, 1±0.2 Vrms.
Dielectric Strength 10000MΩat 500VDC for 1 minute.
1500V AC for 60 seconds. (250V AC)
4000V AC for 60 seconds. (400V AC)

When it comes to safety, normally, there are two types, one called Class-X, the other called Class-Y. Today we are going to talk about Class-X. This is jb capacitors company’s strongest series. We have unbeatable advantage on price and lead time. Most importantly, our quality is stable and reliable with assurance. Our X2 capacitors has certified with VDE, ENEC and UL.

They are generally designed and used in AC line filtering in many electronic device applications. X2 capacitors is also called EMI/RFI suppression capacitors and AC line filter safety capacitors. The generation of EMI/RFI and the negative effects associated with received EMI/RFI can be minimized by Class-X capacitors. They are directly connected to the AC power input, that is, the AC “line” and the AC “neutral”, to achieve the task. So, why X2 capacitors is safe? The reason is that the direct connection to the AC voltage, the capacitors may be subjected to overvoltage. Therefore, this kind of failure will cause a protection, and will not cause any electrical shock hazards.

E-mail: info@jbcapacitors.com

Class-X and Class-Y capacitors are safety-certified capacitors generally designed and used in AC line filtering in many electronic device applications. These safety capacitors are also known by other names. Class-X and Class-Y capacitors help to minimize the generation of EMI/RFI and the negative effects associated with received EMI/RFI.

One of safety-certified capacitors, JYA Class Y2 CE types capacitors, which are typically produced out of ceramic and paper dielectrics, are used with voltages up to 300Vac and a peak test voltage of 5 KV. JYA Y2 class certified product (basic insulation product) is a cross reference to Murata DE series.

They are designed to suppress any noise from an electronic device by reducing the input impedance of the device, and are connected between line and chassis; if they are short-circuit, they create a risk of shock to the user, but there will be no fatal electric shock hazard.

learn more about this products:http://www.jbcapacitors.com/Ceramic-Capacitors/JYA-Y1-and-Y2-AC-Safety-Standard-Recognized-Capacitors.html