SMD capacitors are a kind of capacitor material. The full name of chip capacitors is: multilayer (multilayer, laminated) chip ceramic capacitors, also known as chip capacitors, chip capacitors. There are two ways to express chip capacitors, one is expressed in inches, and the other is expressed in millimeters.
There are two ways to express the size of chip capacitors, one is expressed in inches, the other is expressed in millimeters, the series models of chip capacitors are 0402, 0603, 0805, 1206, 1210, 1808, 1812 , 2010, 2225, 2512, these are inches notation, 04 means the length is 0.04 inches, 02 means the width is 0.02 inches.
Common inches are: 0402, 0603, 0805, 1206, 1210, 1808, 1812, 2220, 2225, 3035
SMD capacitors: It can be divided into two types: non-polar and polar. The following two types of non-polar capacitors are the most common packages, namely 0805 and 0603; and polar capacitors are what we usually call electrolytic capacitors. The most used is aluminum electrolytic capacitors. Since its electrolyte is aluminum, its temperature stability and accuracy are not very high. Since chip components are close to the circuit board, they require high temperature stability. Therefore, chip capacitors require high temperature stability. Tantalum capacitors are the most common. According to their different withstand voltages, SMD capacitors can be divided into four series: A, B, C, and D. The specific classification is as follows: Type Package withstand voltage A: 3216 10V, B: 3528 16V, C : 6032 25V, D: 7343 35V
Its appearance is made of ceramics, but there is not only one kind, it is also divided into glass capacitors, oil-paper capacitors, electrolytic capacitors, etc. Generally speaking, ceramic chip capacitors refer to MLCCs, namely Multilayer Ceramic Capacitors. Conventional SMD capacitors are divided into C0G (NP0), X7R, Y5V according to the material, and their pin packages are 0201, 0402, 0603.0805.1206, 1210, 1812, 1825, 2225.
Multilayer ceramic capacitors (MLCCs) are formed by stacking parallel ceramic materials and electrode materials.