jbcapacitors blog

When you use a capacitor after prolonged storage. you should pay attention.

An Aluminium Electrolytic Capacitor which has been stored for a long period of time tends to give increased leakage current.

Accordingly, whenever you use a capacitor that has been stored a while, make sure to gradually increase the voltage to the rated value. Since the leakage current tends to be higher with higher storage

atmosphere temperatures. store the units at a location with storage temperatures of -40 to 40C which is not exposed to direct sunlight.

Some Fan manufacturers use motor starting Metallized polypropylene film capacitors.

JFS-Motor starting Metallized polypropylene film capacitors have 18 kinds of types.

CBB60 &CBB61 are two of their types.

welcome to visit datasheet: http://www.jbcapacitors.com/pdf/JFS-Motor-Starting-Capacitor.pdf

Our X2 MKP film capacitors (0.22uF) is also used in power tool control board application, the reference max size can be (18X6X12)+/-1mm.
JFV--X2 Metallized Polypropylene Film Capacitor
0.22uF 275VAC +/-10% P:15mm Size: (18X6X12mm)+/-1mm Bulk RoHS
pls.contact us for specifications.

Specialized in manufacturing full series of Plastic Film Capacitors & Snap-in, Screw & Lug type Aluminum Electrolytic Capacitors. These products have been widely using in consumer's electronics, data processing, telecommunication, and industrial control's equipments. It is our commitment to offer our customers the best quality products with fast delivery and the best after sales services.

jb Capacitors has been producing film capacitors since 1980. We offer all kinds of film capacitors, polyester, polypropylene, polystyrene, epoxy dipped type, box type,X2, X1 class, high voltage film capacitors up to 2000VDC, besides winding

technology and stacked technology are both available. Our film capacitors are famous for high quality, short lead time and very competitive prices

jb Capacitors produces many kinds of motor starting capacitors, with high safety, high reliability, low dissipation factor and low temperature rise.

jb Capacitors has 30 years production experience on large can (snap in, screw, and lug  type) aluminum electrolytic capacitors. We sell top quality with reasonable prices.

Our SMD aluminum electrolytic capacitors 105'C and 85'C lead time is very short and  rices are the best in the market. Monthly output for SMD electrolytic capacitors can meet 30 millions.

Jun, 1980, founded in Tainan, Taiwan to produce Plastic Film Capacitors.

Feb, 1982, started to produce Snap-in, Screw & Lug type Aluminum Electrolytic Capacitors.

Dec, 1984, established sales office and warehouse in Hong Kong Located in N.T., HK

July, 1987, moved to China and built up joint venture in Hefei, Anhui Province, China.

Dec, 1988, started production of Snap-in, Screw & Lug Aluminum Electrolytic Capacitors in China.

Aug, 1993, jb Capacitors became sole proprietorship enterprise in China.

Jun, 2003, jb Capacitors set up sales office in Dongguan, Guangdong Province, China.

March, 2005, started to produce SMD Aluminum Capacitors.

• JFA--Mylar polyester film capacitors
• JFB--Metallized polyester film capacitors
• JFL--Metallized polypropylene film capacitors
• JFG--Axial lead film capacitor
• JFV--X2 metallized polypropylene film capacitors
• JFR--Radial & Axial Polystyrene film capacitors
• JFP--High voltage metallized polypropylene cap.
• JFQ--Double sided metallized polypropylene cap.
• JFS--Motor starting film capacitors
• JFX--Premium metallized polypropylene Cap.
• JCS--85°C SMD electrolytic capacitor
• JCK--105°C SMD electrolytic capacitor

1.High quality commitment
2.Competitive prices, professional factory
3.Fast lead time
4.Strong sales & technical support, quick response

Jun, 1980, founded in Tainan, Taiwan to produce Plastic Film Capacitors.
Feb, 1982, started to produce Snap-in, Screw & Lug type Aluminum Electrolytic Capacitors.
Dec, 1984, established sales office and warehouse in Hong Kong Located in N.T., HK
July, 1987, moved to China and built up joint venture in Hefei, Anhui Province, China.
Dec, 1988, started production of Snap-in, Screw & Lug Aluminum Electrolytic Capacitors in China.
Dec, 1988, started production of Snap-in, Screw & Lug Aluminum Electrolytic Capacitors in China.
Aug, 1993, jb Capacitors became sole proprietorship enterprise in China.
Jun, 2003, jb Capacitors set up sales office in Dongguan, Guangdong Province, China.
March, 2005, started to produce SMD Aluminum Capacitors.

All capacitors have a voltage rating. This tells you how much voltage the dielectric (insulator) can withstand before allowing DC to pass between its plates. Sometimes a capacitor has a working voltage (i.e. WVDC working voltage DC) and a surge voltage. The working voltage tells you how much voltage the capacitor can withstand long term (for the normal life of the capacitor). The surge voltage is the voltage is can withstand for short periods of time. Generally, if too much voltage is applied to a capacitor, it will fail. In electrolytic capacitors, the forming voltage (voltage used to anodize the plates) and the thickness of the paper element determine the working voltage of the cap. In film type capacitors, the insulating material (polyethylene, polypropylene...) will determine the maximum working voltage.

When a DC voltage source is applied to a capacitor there is an initial surge of current, when the voltage across the terminals of the capacitor is equal to the applied voltage, the current flow stops. When the current stops flowing from the power supply to the capacitor, the capacitor is 'charged'. If the DC source is removed from the capacitor, the capacitor will retain a voltage across its terminals (it will remain charged). The capacitor can be discharged by touching the capacitor's external leads together. When using very large capacitors (1/2 farad or more) in your car, the capacitor partially discharges into the amplifier's power supply when the voltage from the alternator or battery starts to fall. Keep in mind that the discharge is only for a fraction of a second. The capacitor can not act like a battery. It only serves to fill in what would otherwise be very small dips in the supply voltage.