Suntan Blog

Torque

The torque test should be done by rotating the rotor through one full turn within 15~100gf.cm. Please noted that it might cause the torque will decrease against the rotation increase

Vibration

The maximum capacitance was set at 80 to 90% , however it shall be subjected to vibration test at 1.5mm amplitude, with frequency range from 10 to 55 Hz ,and  then return to 10 Hz for 1 minute applied for 2 hours in each of three mutually perpendicular planes. (total 6 hours) The capacitor shall be rigidly mounted by their normal mounting means .The vibration capacitance shall be within  ±0.25pF or ±2% ( whichever is greater ).

The tantalum foil capacitor was introduced around 1950. It was developed to provide a more reliable form of electrolytic capacitor without the shelf life limitations of the aluminium electrolytic capacitor. It was able to be developed as a result of the availability of high purity tantalum foils and wires. Initially plain foil variants were introduced, but this was quickly followed by etched variants.

The purity of the materials used plays a major part in determining the leakage current of this type of tantalum capacitor.

These tantalum capacitors have a higher capacitance density than their aluminium electrolytic counterparts. They can often operate at temperatures up to about 120C and therefore they are often used in equipment used in extreme conditions. For any other Tantalum Capacitors, Please go to website www.suntan.com.hk. You may find your interested in products here.

Ceramic capacitors are available now in three main types although other styles are available:

• leaded disc ceramic capacitors for through hole mounting which are resin coated
• multilayer surface mount chip ceramic capacitors
• Specialist microwave bare leadless disc ceramic capacitors that are designed to sit in a slot in the PCB and are soldered in place

Although it is possible to obtain other types of ceramic capacitor, these are the main types that can be found today. Of these the surface mount variety is used in the greatest quantities by far because of the manufacturing methods used these days for electronic equipment.

Electronic capacitors are one of the most widely used electronic components. These electronic capacitors only allow alternating or changing signals to pass through them, and as a result they find applications in many different areas of electronic circuit design. Suntan supply a wide variety of types of capacitor including electrolytic, ceramic, tantalum, plastic, sliver mica, and many more. Each capacitor type is introduced in www.suntan.com.hk.

The choice of the correct capacitor type can have a major impact on any circuit. The differences between the different types of capacitor can mean that the circuit may not work correctly if the correct type of capacitor is not used.