.1.绕线型 它的特点是电感量范围广（mH～H），电感量精度高，损耗小（即 Q大），容许电流 大、制作工艺继承性强、简单、成本低等，但 不足之处是在进一步小型化方面受到限制。 陶瓷为芯的绕线型片 电感器在这样高的频率能够保持稳定的电感量和相当高的Q值， 因而 在高频回路中占据一席之地。TDK的NL系列电感为绕线型， 0.01~100uH，精度5%，高Q值， 可以满足一般需求。NLC型 适 用于电源电路，额定电流可达300mA；NLV型为 高Q值，环保 （再 造塑料），可与NL互换；NLFC 有磁屏，适用于电源线。 . 1. The wound It is characteristic of wide scope of inductance (mH ~ H), inductance of high precision, low dissipation factor (Q), and allow the current big, inheritance of strong, simple manufacturing process, low cost, but the deficiency is restricted in terms of further miniaturization. The ceramic - core wound inductor is able to maintain a stable sense of inductance and a high Q value at such high frequencies, thus occupying a position in the high frequency circuit. The NL series inductance of TDK is linear, 0.01 ~ 100uH, 5% precision, high Q value, which can meet general requirements. The NLC type is suitable for power supply circuit, and the rated current can reach 300mA. NLV type is high Q value, environmental protection (plastic), can be interchangeable with NL; NLFC has a magnetic screen for power lines. .2.叠层型 它具有良好的磁屏蔽性、烧结密度高、机械强度好。不足之处是 合格率低、成本 高、电感量较小、Q值低。它与绕线片式电感器 相比有诸多优点：尺寸小，有利于电路的小 型化，磁路封闭，不 会干扰周围的元器件，也不会受临近元器件的干扰，有利于元器 件的 高密度安装；一体化结构，可靠性高；耐热性、可焊性好； 形状规整，适合于自动化表面安 装生产。TDK的MLK型电感，尺 寸小，可焊性好，有磁屏，采用高密度设计，单片式结构，可 靠 性高；MLG型的感值小，采用高频陶瓷，适用于高频电路；MLK 型工作频率12GHz，高Q， 低感值（1n~22nH） 2. The laminated type has good magnetic shielding, high sintering density and good mechanical strength. The defects are low pass rate, high cost, low inductance and low Q value. Compared with wound chip inductors, it has many advantages: small size, small type of circuit and magnetic circuit is closed, and do not interfere with the surrounding components, will not be near the interference of components, is advantageous to the yuan is a high density installation; Integrated structure, high reliability; Good heat resistance and weldability; Shape regulation, suitable for automatic surface installation. TDK MLK inductance, small size, weldable, magnetic screen, high density design, monolithic structure, high reliability; The MLG type has a small sense value and USES high frequency ceramic, which is suitable for high frequency circuit. MLK type working frequency 12GHz, high Q, low sense value (1n ~ 22nH) .3.薄膜片式 具有在微波频段保持高Q、高精度、高稳定性和小体积的特性。 其内电极集中于 同一层面，磁场分布集中，能确保装贴后的器 件参数变化不大，在100MHz以上呈现良好的 频率特性。 3. The film is characterized by high Q, high accuracy, high stability and small volume in microwave frequency. The internal electrode is concentrated in the same plane, the magnetic field distribution is concentrated, can ensure that the device that is attached to the post is not changed greatly, the frequency characteristic that is present in the 100MHz is good.