INTRODUCTION 產品介紹 Multilayer high current chip beads are SMD components that possess a low DC resistance. Their impedance mainly comprises resistive part. Therefore, when this component is inserted in series with a noise high current conduction path, the noise content can be attenuated. 積層式大電流晶片磁珠係表面黏著式晶片, 具低直流電阻 其阻抗主要由電阻性組成, 所以當元件被安裝於一有雜訊的大電流傳導路徑上, 其雜訊可被衰減 FEATURE 特色 1. For power supply units with high frequency noise. 用於易產生高頻雜訊之電源單位 2. Large withstand current (allowable current up to 6A). 耐大電流 ( 額定電流 6A) 3. Resistance to high energy. 耐高能量 4. High reliability optimal for circuit designs which require high impedances and large currents to combat radiated noise on power lines, etc. 高可靠度適用於高阻抗大電流等的電源線的雜訊對策 APPLICATION 適用產品 1. For radiation of the power line and conductance of the high frequency noise. 電源線之輻射及傳導的高頻雜訊 2. Provide waveform correction of digital signals and high frequency noise countermeasures in various types of digital equipment. 各種數位設備的數位訊號整形和高頻雜訊對策 3. Various automotive electronics. 各類汽車設備 4. Mother board, tablet PC, notebook, desktop computer and peripheral equipment. 主機板 平板電腦 筆記型電腦 桌上型電腦及其週邊設備 5. DSC, DVC, LCD Television, Set Top Box. 數位相機 數位攝影機 液晶電視機 數位機上盒 6. Mobile devices which require lower power consumption. 低耗電量的可攜設備 107
SIZE AND DIMENSION 尺寸和邊長 外電極 鐵氧體 SIZE 尺寸 L 長 mm W 寬 mm T 厚 mm a 銀寬 mm 322513 (1210) 3.2±0.2 2.5±0.2 1..3±0.2 0.6~1.0 451616 (1806) 4.5±0.2 1.6±0.2 1.6±0.2 0.6~1.0 453215 (1812) 4.5±0.2 3.2±0.2 1.5±0.2 0.6~1.0 PART NUMBER SYSTEM 編碼系統 KCA S 322513 A 601 Normal Impedance 601: 600Ω at 100MHz 標準阻值 Material Code 材料碼 Dimensions L W T 尺寸長 寬 厚 Lead Free 無鉛 Product Series Code 產品系列碼 108
KCAS Series for High Current KCAS 系列適用於大電流產品 EQUIVALENT CIRCUIT DIAGRAM 等效電路圖 Electrical Characteristics 電氣特性 Part Numbe 產品料號 Impedance 阻抗 Ω±25% 歐姆 @ 100MHz DC Resistance 直流電阻 Ω (Max.) 歐姆 Rated Current 耐電流 ma (Max.) 3225 系列 KCAS322513A601 2A 600±30% 0.10 2000 KCAS322513A102 2A 1000±30% 0.24 2000 4516 系列 KCAS451616A851 1.5A 850±30% 0.10 1500 KCAS451616A102 1.5A 1000±30% 0.17 1500 4532 系列 KCAS453215A681 2.5A 680±25% 0.06 2500 KCAS453215A102 0.5A 1000±25% 1.30 500 KCAS453215A132 2A 1300±25% 0.10 2000 5650 系列 KCAS565020I551 4A 550±25% 0.035 4000 *TEST EQUIPMENT: E4991A IMPEDANCE ANALYZER 量測儀器 :E4991A 阻抗分析儀 109
KCAS Series for High Current KCAS 系列適用於大電流產品 TYPICAL ELECTRICAL CHARACTERISTICS 典型電氣特性 Z, R, X vs. FREQUENCY CHARACTERISTICS 阻抗 電阻 感抗對頻率特性 KCAS453215A102 0.5A KCAS565020I551 4A 1600 800 1200 600 Z Impedance (Ω) 800 R Impedance (Ω) 400 Z R 400 200 X X 0 0 1 10 100 1000 Frequency (MHz) 3000 1 10 100 1000 Frequency (MHz) 3000 110
Comparison between the impedance curve characteristics of ACMS & KCAS ACMS & KCAS 阻抗特性曲線比較 ACMS TYPE In the traditional circuit of vertical structure, the distributed capacitance, existing between internal electrodes and between internal and outer electrodes, results that the impedance is lower around hundreds of MHz in high frequency. 在傳統的直向迴圈結構中, 由於線圈的內部電極之間, 以及內部電極與晶片外部電極之間存在著雜散電容, 故在幾百 MHz 以上的高頻率區阻抗值較低 KCAS TYPE When the internal circuit is a transverse structure, the distributed capacitance can be reduced, increasing the impedance to 5 times of ACMS type around 1GHz. 當內部結構改成橫向迴圈結構時, 雜散電容減少, 1GHz 附近的阻抗值可以達到舊型的 5 倍, 提高工作頻率 111