jbcapacitors blog

Keywords: motor run capacitors; motor starting capacitors

You can test a motor run capacitor using a 100 watt light bulb and a digital ac volt meter.
Never use an ohm meter to test a motor run capacitor. It is a very inconclusive test and only shows that there is "something" in the circuit. You are essentially "shooting blind".
To test motor start capacitors you will need a 200-300 watt bulb depending on the size.
Caution: capacitors can hold a charge when removed from the circuit unless they have a bleeder resistor. Discharge the capacitor through the light bulb before handling. A capacitor in a working motor circuit cannot hold a charge, it is discharged the instant the power is removed.

Pls. see our JFS--Motor starting capacitors, here is datasheet: http://www.jbcapacitors.com/pdf/JFS-Motor-Starting-Capacitor.pdf. you will find the quality is quite good when you use the correct test mothod.

jb capacitors company produce Axial type high end MKP film capacitors JFX.

key words: MKP Film capacitors; Audio film capacitors; Axial film capacitors; Metallized Polypropylene Film Capacitors

See below picture, this JFX widely used in High end Audio products, amplifier, and many high end passive crossovers.

This is premium metallized polypropylene film capacitors, Axia type, very few suppliers can offer so competitive products in China.

Compared with Auri cap, Jantzen, Erse audio, Mundorf etc, our lead time is very short, the important is our prices are very competitive!

JFA--Polyester Film Capacitors CL11
Applications: DC and pulse circuits of broadcasting and TV sets, all kinds of instruments and communication equipment.
Energy Saving Lamps.

JFB--Metallized Polyester Film Capacitors CL21 and CL21X
Applications: DC and pulse circuits of electronic equipment, TV Sets, communication equipment and energy saving light sources.
Available for automatic insertion.

JFC--Metallized Polyester Film AC Capacitors CL23B
Applications: Low frequency AC circuits, DC and pulse circuits.

JFP--Metallized Foil High Voltage Polypropylene Film Capacitors CBB81
Applications: Suitable for high pulse and large current loading circuits.

JFV--Class X2. Metallized Foil Polypropylene Film Capacitors for Electric-Light Sources CBB18
Applications: Energy Saving Lamps and Electronic Ballasts, High Pulse and Large Current Loading Circuit.

JFL--Metallized Polypropylene Film Capacitors CBB21
Applications: DC and Pulse Circuits.

JFY--Metallized Polypropylene Film AC Capacitors With Plastic Case Sealed CBB62-B
Applications: Appling to request for low dissipation and small internal temperature rise. For example across the line in power supply.

JFM--Metallized Polypropylene Film Capacitors With Plastic Case Sealed CBB21-B
Applications: DC and pulse circuits.

JFQ--Double Sided Box Metallized Polypropylene Film Capacitor of High Voltage Impulse MMKP
Applications: High voltage pulse circuits (for example light sources, laser units).

JFS--Motor Capacitors, CBB60,CBB61,CBB65
Lighting Capacitors for fluorescent lamps, discharge lamps, high-pressure sodium vapour lamps (HS), metal halide lamps (HI), mercury vapour lamps (HM).

We are looking for electronic components distributor in the world, who are interested in buying list Metallized Polyester Film Capacitors.

And if based on whole list, we have very good discount.

Metallized Polyester Film Capacitors, we also call them CL21, K73-17 film capacitors, which are the most common and popular passive components.

JFB--Metallized Polyester Film Capacitors

Specifications: http://www.jbcapacitors.com/pdf/JFB-Metallized-Polyester-Film-Capacitor.pdf

JFE--Mini Met Polyester Film Capacitors

Specifications: http://www.jbcapacitors.com/pdf/JFE-Mini-Metallized-Polyester-Film-Capacitor.pdf

Simple cross guide: Vishay MKT468, Epcos B32591~32594, Panasonic ECQV, Pilkor PCMT369

jb Capacitors Company

Below is stock information for X2 Film Capacitors.

• Brand: jb Capacitors Company.
• Products: JFV series--X2 Metallized Polypropylene Film Capacitors
• Approvals: TUV, CE, UL
• Voltage: 275VAC
• Tolerance: +/-10%
• Pitch size: 15mm
• Part Numbers: JFV0A1104K150000B & JFV0A1224K150000B
• Cross Reference: Vishay MKP3382, Kemet Arcotronics R46, Wima MP3, Epcos B81130, Pilkor PCX2 337

Cross Link: http://www.jbcapacitors.com/pdf/JFV-X2-Metallized-Polypropylene-Film-Capacitors-Cross-
Reference.pdf
Datasheet Link: http://www.jbcapacitors.com/pdf/JFV-X2-Metallized-Polypropylene-Film-Capacitor.pdf

Motor Start Metallized Polyproyplene Film Capacitors ( Motor Run capacitors ) , in China, also called CBB60, CBB61, CBB65.

jb Capacitors Company produce 18 kinds of motor starting capacitors, with different terminals.

Tony: I heard that Brand Electronicon discontinued E23 series motor starting film capacitors since last year.
Peter: Really ? how about Iskra motor starting capacitors ?
Terry : I bought Iskra capacitors, but their prices are too high.
Anna: I used to use Iskra brand, but now I use jb Capacitors Brand, quality is very good, and their prices are very reasonable.
I buy from jbcapacitors JFS--17 series for many years.
Piotry: Yes, really good brand, I buy jb capacitors JFS-13 series for a long time, their delivery time is very fast too.
I am going to buy their JFS--6 series soon. The box type with terminals motor run capacitors are also very popular.
I also received information from jb capacitors, seems their JFS-17 can replace Electronicon E23 series.
Tony: Sounds great !! I will contact with jb capacitors and check soon.

jb capacitors company strongly recommend:

JFQ-Box type double sided metallized polypropylene film capacitor

This type capacitors capacitance range is wide, voltage is up to 2000V, can cross to many high end European brands:

Capacitance Range: 0.00022uF ~ 3.9uF
Rated Voltage: 250V, 400V, 630V, 1000V, 1400/1600V, 2000V.DC
Lead Spacing: 7.5mm, 10mm, 15mm, 22.5mm, 27.5mm

Cross Reference:
Arcotronics(Kemet) : R76 series
EVOX RIFA: PHE450 series
Vishay: MMKP 383 Series
Wima: MKP 10,
Philkor: PCMP384 series etc...

Applications: electronic ballast, frenquency control, lighting etc...

Polyester films, are clearer and a higher quality than lower grade films, which tend to be foggy. Premium films also endure extreme environments and severe stress conditions more favorably. Films with higher polyester content are more rigid and feel thicker than films with more adhesive content.

Polypropylene film is softer than polyester, but still has excellent clarity. These films have strong chemical resistence, good color stability over printed sheets, and good elasticity which allows the film to lay extremely flat. Due to its softness and flatness, polypropylene films are most often used in single-sided laminating.

安规电容是指用于这样的场合：即电容器失效后，不会导致电击，不危及人身安全.它包括了X电容和Y电容。

X电容是跨接在电力线两线 (L-N) 之间的电容，一般选用金属化薄膜电容；Y电容是分别跨接在电力线两线和地之间 (L-E, N-E) 的电容，一般是成对出现。

基于漏电流的限制，Y电容值不能太大，一般X电容是uF级，Y电容是nF级。X电容抑制差模干扰，Y电容抑制共模干扰。

Y电容的电容量必须受到限制，从而达到控制在额定频率及额定电压作用下，流过它的漏电流的大小和对系统EMC性能影响的目的。

GJB151规定Y电容的容量应不大于0.1uF。Y电容除符合相应的电网电压耐压外，还要求这种电容器在电气和机械性能方面有足够的安全余量，避免在极端恶劣环境条件下出现击穿短路现象，

Y电容的耐压性能对保护人身安全具有重要意义。

CE word is from the French "Communate Europpene" from the initials, is the meaning of the European Community。"CE" mark is a safety certification mark, the manufacturer is considered open and the passport to enter the European market.

UL is in English Test by insurance Underwriter Laboratories Inc. UL secuity testing is the most authoritative, but also engages im community safety testing and identification of the larger non-governmental organizations.

JFV-X2 Metallized Polypropylene Film Capacitor, is not only with above two approvals(CE& UL), but also with TUV approvals. That must can help to promote this capacitor in your market.

Do you use the X2 safety capacitors ? For more info, welcome to visit "jbcapacitors" production lines:  http://www.jbcapacitors.com/Plastic-Film-Capacitors/