WEET Judging the Polarity of Electrolytic Capacitor with Multimeter Or by External Appearance

WEE Technology Company Limited - WEE are Capacitors Specialist

The positive and negative polarity will be marked on the shell of electrolytic capacitor, and attention must be paid to its polarity in actual use, otherwise there is a risk of explosion. If the polarity of an electrolytic capacitor can not be recognized, its polarity can be judged with a pointer multimeter.

So how to identify the polarity of Electrolytic capacitor by Multimeter?

Due to the difference between positive and negative polarity of electrolytic capacitor, it has a feature of using multimeter resistance to detect it: the positive electrode is connected with black probe (positive power supply), the negative terminal is connected with red probe (negative power supply), and the leakage current of electrolytic capacitor is small (Large leakage resistance). On the contrary, the leakage current of electrolytic capacitor increases (the leakage resistance decreases).

When measuring, first assume that one pole is "+" pole, connect it with the black probe of the multimeter, and connect the other electrode with the red probe of the multimeter. Record the scale of the stop of the probe (the resistance value of the probe is large on the left side), then discharge the capacitor (i.e. the two leads touch each other), exchange the two probes, and re measure. In the two measurements, the last time the needle stays on the left (with high resistance), the black probe is connected to the positive electrode of the electrolytic capacitor.

At the same time, you can tell the polarity of WEET Axial Electrolytic capacitors by external appearance. Firstly, on one side of the lead, there is a protruding end, which is a negative pole. At the same time, the sleeve marking will has a  "-" one it and arrow to one side , which is showing as negative pole. 


WEET Shares The Main Applications of the WAA WAB Polarized Axial Alumium Electrolytic Capacitors

WEE Technology Company Limited - WEE are Capacitors Specialist

The main applications of the polarized axial Aluminum Electrolytic Capacitors products are: frequency converter, frequency conversion air conditioner, welding machine, inverter power supply, switching power supply, high-quality electronic machine, high-grade audio frequency division, computer motherboard, intelligent instrument, power wave of industrial control equipment, medical equipment, household appliances, communication power supply, etc...

Widely used in smart meters, electric vehicle charger controller, car navigation box, vehicle electronic equipment, POS card reader, smart meter, TV set-top box, satellite receiver, VCD / DVD, audio amplifier, car audio, charger, telephone, instrument, electronic ballast, electronic energy-saving lamps, lighting, financial equipment and appliances, medical electronic equipment and other electronic equipment Products.


WEET What is The Best CBB20 Capacitance of a Loudspeaker and For Midrange Speakers

WEE Technology Company Limited - WEE are Capacitors Specialist

Audio circuit usually includes frequency division, filtering, bypass, coupling and other capacitors. 
Most of the coupling capacitance in audio circuit is CBB capacitor, because CBB capacitor has a great impact on the improvement of sound quality.
WEET WMD CBB20 Capacitors is widely used in the fields of energy saving, sound, sound box, audio frequency, flash lamp, stage lamp and disinfection lamp

How much capacitance is the best for midrange speakers?
The selection of capacitor has a great influence on the sound playing of the midrange loudspeaker. It is not suitable to be too large or too small.
In general, the capacitance of about 10 μF can be selected according to the regular pattern.

What is the best capacitance of a loudspeaker?
Generally, the resonant frequency of the common diaphragm treble is about 1000-3000hz. Look at the inner core. If the inner core is too small and the power is not enough, use 3.3uF or 2.2uF less. 
There are 20 cores in the inner core, and 4.7uF can be used.
This is just a simple discussion of power. Adjusting the capacitance also needs to do some work with the matching of the bass speaker, and also consider the phase problem of the bass and treble.
The high-frequency loudspeaker is the high-frequency loudspeaker unit in the speaker box. Its function is to replay the high-frequency signal (frequency range 1 is generally within 5KHz-10KHz) output from the frequency divider.


WEET MKP CBB20 Chinese Factory of Axial MKP Flat Oval Shape Yellow Tape Capacitor

WEE Technology Company Limited - WEE are Capacitors Specialist

CBB20 is an axial metallized polypropylene film capacitor. In fact, there are many names for CBB20 capacitor, such as audio frequency capacitor, axial capacitor, yellow wax capacitor, yellow tape capacitor, piercing capacitor and so on. In fact, they are all CBB20 capacitors.

CBB20 capacitor has a price advantage, ultra-small size, a variety of colors, common yellow, black two, also have blue, white, red and so on.

It is made of metallized polypropylene film. The lead wire is led out axially and wrapped with high temperature tape. Both ends are sealed with flame retardant liquid. The appearance is round or cylindrical. It has low noise, low loss and small internal temperature rise. It is suitable for various AC and DC pulse and high current circuits. Such as communication equipment, radio, television, power supply, instrumentation and other products.

WMD MKP CBB20 Capacitors Features: the product is made of metallized polypropylene film, the lead is drawn out axially, wrapped with high-temperature tape, both ends are filled with flame-retardant liquid. The appearance is round or cylindrical, with low noise, low loss and small internal temperature rise. It is suitable for all kinds of AC and DC pulse and high current circuits.

With metallized polypropylene film as medium and electrode, wrapped with flame retardant tape and sealed with epoxy resin, it has excellent electrical performance, good reliability, wide capacity range, low loss, long service life and good self-healing.

WMD MKP CBB20 Capacitors Product Function: applicable to all kinds of AC and DC pulse and high current circuit. It is suitable for AC and DC circuits of instruments, household appliances, and VHF signal isolation, bypass, coupling, filtering, etc. it is widely used in high-grade audio system frequency division circuit.

https://www.musicaps.com/Uploads/PDF/WEET-WMD-MKP-CBB20-Chinese-Factory-of-Axial-Metallized-Polypropylene-Film-Capacitor-FLAT-OVAL-SHAPE.pdf


WEET China Axial Film Capacitor Manufacturer CBB20 Flat MKP Car Audio Capacitors

WEE Technology Company Limited - WEE are Capacitors Specialist

WEET China Axial Film Capacitor Manufacturer CBB20 Flat MKP Car Audio Capacitors

WEET WMD CBB20 Technical data and specifications
Operating temperature rangeMax. operating temperature Top,max 85 Centigrade
Upper category temperature Tmax 85 Centigrade
Lower category temperature Tmin 40 Centigrade
Rated capacitance CR0.1 µF~47µF
ToleranceJ(+-5%); K(+-10%)
Rated voltage VR250VDC~1250VDC
DC test voltage1.4*VR, 2s
Rated frequency FR50/60Hz
Dissipation factor tan d<=0.002 1KHZ   
Insulation resistanceCR<=0.33µF VR<=100V >=50000MΩ
VR>100V >=100000MΩ
CR>0.33µF VR<=100V >=15000s
VR>100V >=30000s
CAP(uF)WMD - 250VDC
WTH
1040.11558
2240.222059
3340.33208.513
15.5710.5
4740.47256.511
15.58.512.5
6840.6825811
20.56.812
105124814.5
2252.230.51016.5
3353.330.51319
4754.730.51722
5655.630.517.524
6856.8451521
8258.24516.523
106104518.525
156155520.527
22622552632
30630553137
33633603137
47647603743.5


WEET Share the Difference Between WEET WMD CBB20 MPA and WEET WMD CBB20 MPT

WEE Technology Company Limited - WEE are Capacitors Specialist

The main difference between CBB20 MPT axial polypropylene capacitor flat and CBB20 MKP axial polypropylene capacitor round is the shape.
Sometimes due to the PCB design, the height space is limited, so it is the right choice to choose CBB20 MPT instead of .
And when the coupling capacitor is used, the effect is good!

WEET WMD CBB20 (MPA) metallized polypropylene film capacitor (axial compression flat)
WEET WMD CBB20 (MPT) metallized polypropylene film capacitor (tube and round type)

So in the production process, we need to use hot press machine to press the round film to flat shape.
Some of the factory will add more cost on the WEET WMD CBB20 (MPA) type, but to WEET,  we offer the same cost to customers.
Welcome to try WEET WMD CBB20 Yellow color capacitor, the best audio and music capacitors in China.

 

WEET How to Choose the Best AudioPhiler Capacitor Mundorf MKP or ClarityCap ESA or WEET WMD

WEE Technology Company Limited - WEE are Capacitors Specialist

WEET MKP AudioPhiler capacitor for tube amps 4.7uF 400V, 6.8uF 630V, 2.2uF 250V , WEET MKP Audiophiler Capacitor, Metallized Polypropylene, 10uF 630V. MKP 'Audiophiler' Metallized Polypropylene film audio capacitor, 400V. Rated at 85 degrees are all best choices for hiEnd audio applications

MKP Audiophiler audio grade non-polarized crossover capacitors made in China. These are the highest quality crossover capacitors available today. Rated at 400V and 630V. Values include 1uF, 2.2uF, 3.3uF, 4.7uF, 6.8uF, and 10uF. All of these WMD MKP Audiophiler capacitors are Metallized Polypropylene and yellow color tape.

Mundorf MKP Audiophiler or ClarityCap ESA or WEET WMD, please read below audio capacitors test view by Tony Gee.
http://www.humblehomemadehifi.com/download/Humble%20Homemade%20Hifi_Cap-Test-Ratings.pdf



WEET WMC MPA MPP MKP CBB19 630VDC 2.2uF 5% Audio Amplifier Capacitor

WEE Technology Company Limited - WEE are Capacitors Specialist

WEET WMC MPA MPP MKP CBB19 630VDC 2.2uF 5% Audio Amplifier Capacitor

What is the main function of capacitors in audio amplifiers?

Generally capacitors in audio amplifiers has below seveval functions: 

In Biasing,  they Block DC signal flow

In Biasing,  they Pass AC signal flow

In Feedback,  they can integrate a signal

In Filters,  they can differentiate a signal

As a rule the bigger the value of capacitance the lower the frequency ( FQ ) that will pass through the cap.

If the capacitor goes to ground it diminishes ( shunts ) lower FQ signals out of the amplifier.

If the capacitor goes in series with the signal path in (pass mode) it increases the lower FQ of the amplifier.


WEET Is it Better to use 100V 2.2uF Capacitor or 250VDC/400VDC 2.2uF for High Pitch Speaker?

WEE Technology Company Limited - WEE are Capacitors Specialist

WEET Is it Better to use 100V 2.2uF Capacitor or 250VDC/400VDC 2.2uF for High Pitch Speaker?
The answers to this question is up to the circuit , we usually suggest to use high voltage capacitor to replace lower one in most applications. But sometimes it will be exception. so you can try both and find the best one you need.

The yellow appearance capacitor, Audiophiler MKP-kondensotor 2.2uF/400VDC,  is polypropylene film capacitor, which has the characteristics of small leakage, fast reaction speed and no inductance. It can be used in power supply B and filter circuit of gall machine.WEET capacitor has a wide range of sound, excellent timbre, soft and sweet tone, and good charm. It is more suitable for coupling and linking between stages, especially for output cross linking.

Polypropylene Film: imported sungmoon metallized film; more uniform thickness, less noise; service life up to 10 years; higher density, more stable IR characteristics
Gold spraying: automatic control spraying equipment, pure zinc material
Lead out: pure copper thick wire, better conductivity, too much current is not easy to heat
Sealant: flame retardant, strong adhesion
Epoxy resin: automatic epoxy dosing machine and 2-hour fixed curing equipment
Outsourcing: standard thickness, not easy to fade tape, automatic coating equipment operation, efficiency increased 3-5 times
Printing: high definition laser marking, long-term color fastness

WEET MKP WMC Metalized Polypropylene MKP Audio Capacitor 250VDC 2.2uF Axial Leads

WEE Technology Company Limited - WEE are Capacitors Specialist

CBB20 axial film capacitor is wound with metalized polypropylene film in non-inductive type.This round axial lead film capacitor is wrapped with adhesive PET tape and axially welded by tinned copper wire.

Due to small size, WEET film capacitor is easy to install, this kind of audio capacitors, also be called as audio frequency division capacitor, which can be used in all kinds of filter circuit, noise suppression circuit and low impulse circuit.

WEET MKP WMC Metalized Polypropylene MKP Audio Capacitor 250VDC 2.2uF Axial Leads, general capacitance and values in audio applications are : 1.0uF, 1.2uF, 1.5uF, 2.0uF, 2.2uF, 2.5uF, 3.0uF, 3.3uF, 3.5uF, 3.9uF, 4.0uF, 4.7uF, 5.6uF, 6.8uF, 8.2uF, 10uF, voltage range from 250VDC to 630VDC, special voltage and capacitance are on request. WEET capacitors is ready to provide the right capacitors to you.