Kingtronics Blog

Diodes can switch analog signals. A reverse biased diode appears to be an open circuit. A forward biased diode is a low resistance conductor. The only problem is isolating the AC signal being switched from the DC control signal. The circuit in Figure below is a parallel resonant network: resonant tuning inductor paralleled by one (or more) of the switched resonator capacitors. This parallel LC resonant circuit could be a preselector filter for a radio receiver. It could be the frequency determining network of an oscillator (not shown). The digital control lines may be driven by a microprocessor interface.

Kingtronics www.kingtronics.com provide Fast Switching Diode LL4148 Minimelf SOD80 .The features of Fast Switching Diode LL4148 Minimelf SOD80 are below:

• LL4148 small signal diode
• Fast switching surface mount diode
• Low reverse leakage
• Fast switching speed
• Maximum power dissipation 500mW
• High stability and high reliability

A capacitor is a passive electronic component consisting of a pair of conductors separated by a dielectric.

Kingtronics specializes in application specific multilayer ceramic capacitors. Our product offerings included surface mount capacitors from the 0402 case size to larger high voltage units (up to 4KV) for Commercial and High Reliability applications.

The NPO model from Kingtronics International Company is a series of multilayer chip-type ceramic capacitors that has 0.5pF to 10uF capacitance, with up to 10 percent tolerance.

The 0805-packaged MLCC is rated at 6.3V to 50V for low voltage chip ceramic capacitor and from 63V to 4kV for high voltage multilayer ceramic capacitor.

Our products LKT Chip multilayer ceramic capacitors 6.3V to 50V  and   HKT High voltage multilayer ceramic capacitors 63V to 4000V are marketed under our own brand "Kingtronics" and enjoy a very good reputation around the world. Many customers approved our product brand "Kingtronics" and appointed to order.

Quartz is used in the making of sandpaper, optics, glass, liquid filters, circuit boards, computer components, cement, mortar, and jewelry. Quartz crystals are also piezoelectric meaning when an electrical current passes through them they vibrate a small amount. Time can be measured from the vibrations of the quartz crystals so quartz crystals are often used in clocks.

Quartz crystals may either operate in a fundamental mode or in an overtone mode. Below frequencies of around 25 MHz crystals are normally designed to operate in their fundamental mode, whereas above this they will normally be designed for overtone operation, although with manufacturing techniques improving higher frequency crystals are becoming available. The mode is therefore an important element of the crystal specification.