jb Test Report From an Audiophile in France (Mr. SAM BENELBAZ )

Samples tested by Mr. SAM BENELBAZ
jb JFX—premium metallized polypropylene film capacitors
JFX 94uF 250VDC +/-5% Bulk RoHS, Qyt: 2pcs
JFX 22uF 250VDC +/-5% Bulk RoHS, Qty: 2pcs
JFX 3.5uF 250VDC +/-5% Bulk RoHS, Qty: 4pcs

Datasheet link: 
http://www.jbcapacitors.com/pdf/JFX-Premium-Metallized-Polypropylene-Film-Capacitors-Axial.pdf

Introduction of Mr. SAM BENELBAZ

French, retired, have the hobby of TUBE do it yourself; used to work in IBM as a professional 
of electronics; after that for LASER a company involved in point of sales solutions and hardware maintenance, in that position, he bought a French company sic-safco. 

Mr. SAM BENELBAZ is member of some forums in US and France, some are AUDIOASYLUM.com and DIYAUDIO.com fun withtubes. com and some others.

Original letter from Mr. SAM BENELBAZ

Dear iris,
i hope you are ok. 
I have installed the JFX capacitors last Sunday and i can now give you my impressions.

But first i have to tell you what speakers and amps i used for the test:

The speakers are YAMAHA NS1000M well known in the market and very revealing .
The amps are two american CARY tube amps model 40M using 6SL7 and EL34 tubes.
In this test the EL34 are NOS Philips EL34 of the XF2 series (the best).

The Yamaha crossover was using mainly NICHICON capacitors using metalised paper .
I did replace every capacitor with the ones you send me.
The CDs i use for the test are very good Cds , classic music and jazz mainly.
I know them very well and can hear the differences well. 

Now lets come to the findings:
The JFX have good audio imaging and you can hear obviously more details than with the nichicon .
I think this is because they are wounded very tight.
Congratulations to the worker who did the job.

At this very moment i think that JFX are very good capacitors for cross overs and with their price-sound ratio you can go to the market without any shame.

My best regards
sam

jb Capacitors Company Most Popular PET, PP Film Capacitors

jb Capacitors Company is a leading ISO  9001:2008 manufacturer founded in Taiwan. produce top 
quality Film capacitors on market.

Film Capacitors

Film capacitors satisfy a large variety of electronic applications, data processing, because the dielectrics have excellent electrical characteristics, high stability and long life time. A film capacitor uses an 
insulating plastic film as the dielectric.Performance of the capacitors strongly depends on the dielectric material. The most common dielectrics are Polyester and Polypropylene. below are some our popular PET, PP series:

PET (Polyester) 
JFA - Mylar Polyester Film Capacitor: Cross to CH11, widely used in lighting and lamps.
JFB - Metallized Polyester Film Capacitor: Cross to CL21, K73-17, Vishay MKT368, MKT 467, MKT 468, Epcos B81130, B32921~B32924, Vishay MKP3362, Panasonic ECQU
JFD - Box Type Metallized Polyester Film Capacitor: Cross to Arcotronics MKT R60, R66, Wima MKS3, MKS4, MKS10, Epcos B32520, Pilkor PCMT 468, Iskra KEU 1930, KEU 1910
JFE - Mini Metallized Polyester Film Capacitor: Miniature size, non-inductive, epoxy dip coated

PP (Polypropylene)
JFL - Metallized Polypropylene Film Capacitor: Cross to Wima FKP3, Epcos B32612, Pilkor PCMP 489, PCMP483, Pnasonic ECWF
JFP - High Voltage Metallized Polypropylene Film Capacitor: high voltage, good option for high AC current applications
JFQ - Box Type Double Sided Metallized Polypropylene Film Capacitor: Cross to Arcotronics R76, Wima MKP10, FKP1 , Vishay MKP1840, Epcos B32651-B32656, Pilkor PCMP 384
JFV - X2 Metallized Polypropylene Film Capacitor, ENEC, VDE, UL: Cross to Arcotronics R46; WIMA: MKPX2,MP3X2; Epcos B81130, B32921~B32924, Vishay MKP3362, MKP3382, Panasonic ECQU

We better understanding of our jb capacitors product, we have prepared free sample kit for our 
customers, please feel free to contact us if you need them for your promotion or study purpose.

jb Photo Flash Capacitors, Lug Aluminum Electrolytic Capacitors

jb capacitors company is ISO 9001:2008 manufacturer, produce top quality photo flash Electrolytic 
capacitors. For details, pls check below:

JSU - Photo Flash, Lug Aluminum Electrolytic Capacitor 

Features: 
Lug terminals
For Photo Flash
High Stability
Compact and light weight

Datasheet: http://www.jbcapacitors.com/pdf/JSU-Photo-Flash-Lug-Aluminum-Electrolytic-Capacitor.pdf

Most popular values: 
1600uF 360V -10%~+20% DXL: 35X70mm Bulk RoHS
1600uF 400V -10%~+20% DXL: 34.75X69mm Bulk RoHS

jb High Quality SMD Electrolytic Capacitor for DSTB Manufacturing

An Electrolytic capacitor is a liquid capacitor with a scratched anode aluminium foil, liquid electrolyte and another aluminium foil. 

jb Capacitors Company has around 30 years manufacturing experience of Electrolytic capacitors. 
We offer two most common SMD e-cap series: JCS 2000H at 85'C & JCK 1000H - 2000H at 105'C. Surface mounting Design, good option for Digital set-top boxes manufacturing.
Many customers buy our below JCS items for DSTB application, do you have related request? welcome to send me your request for quotation:info@jbcapacitors.com
Our samples can be free offered, if you are interested in, let's dicuss more details.

JCS - 2000H at 85°C SMD Aluminum Electrolytic Capacitor
22uF 16V +/-20% 4*5.4mm 2000h at 85'C T&R RoHS
47uF 6.3V +/-10%  5*5.4mm 2000h at 85'C T&R RoHS
100uF 16V +/-20% 6.3*5.4mm 2000h at 85'C T&R RoHS
100uF 25V +/-20% 6.3*7.7mm 2000h at 85'C T& R RoHS
220uF 16V +/-20% 6.3*7.7mm 2000h at 85'C T&R RoHS

jb RC Unit X2 Film Capacitors, Parallel Connection

We jb Capacitors can offer both insulated lead, and jb standard CP wire lead for RC unit X2 film capacitors.

jb Capacitors is ISO 9001:2008 certificated professional manufacturer for full range of Film Capacitors and standard SMD electrolytic capacitors.




jb Capacitors Dual Run Capacitors

A dual run capacitor supports 2 electric motors, such as in large air conditioner or heat pump units, with both a fan motor and a compressor motor. The dual capacitor has 3 terminals labeled "C", "FAN", and "HERM" for the common, fan, and hermetic compressor connections.

Round dual run capacitors (shaped as round cylinders) are commonly used for air conditioning, to help in the starting of the compressor and the condenser fan motor. Dual capacitors come in a variety of sizes, depending on the capacitance (µF), such as 40 plus 5 µF, and also the voltage. A 440 volt capacitor can be used in place of a 370 volt, but not a 370 in place of a 440 volt. The capacitance must stay the same within 5% of its original value. An oval dual run capacitor could be used instead of a round capacitor, but the mounting strap should be changed to better fit the oval shape.

http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFS-Motor-Capacitor.html

IEC/EN 60252-1 2001 specifies levels of protection for motor run capacitors
• P0 - no protection
• P1 - fail open circuit or short circuit
• P2 - fail open circuit only 

jb Capacitors Motor Starting Capacitor - JFS

jb A.C motor-start capacitors are electrochemical devices consisting of compactly wound aluminum foil separated by layers of paper, which are impregnated with a conducting electrolyte. Etching of the foil prior to formation and winding increases both the effective foil surface area and the capacitance per unit volume of the finished capacitor. The entire assembly is housed in a case of moisture and oil resistant molded plastic. These capacitors are rated for operation in ambient temperatures from -40°C to +65°C and at a frequency of 50Hz to 60Hz.

These capacitors are designed for motor starting and other intermittent duty AC applications. They are non-polarized and are normally designed with dual quick terminals. These terminals allow for the easy attachment of a bleeder resistor(usually 15K ohm at 2 watt). This saves relay switch contacts and capacitor, particularly in capacitor start-run applications. The quick connect terminals also eliminate the need for soldering.

A motor capacitor, such as a start capacitor or run capacitor, including a dual run capacitor, is an electrical capacitor that alters the current to one or more windings of a single phase AC induction motor to create a rotating magnetic field. It is used in air conditioners, hot tub/jacuzzi spa pumps, or forced air heat furnaces for example. A round dual run capacitor is used in some air conditioner compressor units, to boost both the fan and compressor motors.

http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFS-Motor-Capacitor.html


jb Introduces Different Types of CBB60 Motor Capacitos

I: CBB60A Capacitor Plastic can Quickly connect 4 pins terminal, M8 Stud

II: CBB60B Capacitor flexible /solid wire plastic can, M8 Stud

III: CBB60C Capacitor Bipolar Cable Plastic can, M8 stud

jb Motor Starting Capacitors JFS (CBB60) Fetures

jb Capacitors manufactures Motor Starting Capacitor, also called Motor Run Capacitors. Motor Starting Capacitor is famous for low dissipation factor, lower temperature rise and high reliability and durability. We sell high quality and quite competitive prices for Motor Starting Capacitors, and totally we have 22 different series of motor starting capacitors. Following are Motor Starting Capacitor features. 

http://www.jbcapacitors.com/Plastic-Film-Capacitors/JFS-Motor-Capacitor.html

CBB60 Capacitor takes heavy-edge metallized Al/Zn PP film or web-like fuse film as dielectric. Its components are sealed with flame-retardant epoxy resin. It has cylindric outline with high reliability and stability. CBB60 capacitor has features of small size, light weight, small tangent in waste angle, and good self-concrescence. Applicable to startand operation with 50/60Hz. A. C single motor, specially suit for micro pump, baric pump, micro motor and so on.

1) Very small dissipation factor, small inheterent temperature rise.
2) High insulation resistance.
3) Good capacitance stability.
4) Excellent self-healigh property.
5) Safety and hight reliability due to flame reatardant plastic or metal case enclosure, flame retardant opoxy resin endfill.
6) It is applicable for the starting and running of AC single-way motor with 50~60Hz frequency.
7) Special requirment can be made at the request of customers.

jb Tells You What is CBB60 Stands for ?

According to the provisions of China’s national standard GB2470-81, the capacitor named product 
model generally consists of the following four parts:

Part I: The letter represents the name, the meaning of C is a capacitor.
Part II: with letters material.
Part III: numerical classification.
Part IV: The digital serial number.

For example: “CBB60” Capacitor
C – meaning Capacitor
B – meaning the Dielectric is a non-polar organic film
B – meaning the Dielectric material is polypropylene
60 – meaning Plastic can motor run capacitor Broadly applied to starting and running of  AC single-
phase motors at 50/60Hz frequency for AC motor, electric engine, water pump, generator and high 
efficiency compressors of refrigerators etc.