Capacitance variation :

Presentation on theme: "Capacitance variation :"— Presentation transcript:

1 Capacitance variation :
. Temperature characteristics . Tolerance . Applied voltage characteristics (DC bias / AC voltage swing)　 温度特性 Class 1　　温度補償系 (temperature compensating type) Temperature CH / R / UJ / SL ... (JIS) characteristics C0G / R2H / U2J / ... (EIA) Code Class 2 高誘電率系 (high dielectric constant type) B / F ... (JIS) XxR / XxS / Y5V ... (EIA) X7R = -55ºC – 125ºC +/- 15% X5S = -55ºC – 85ºC +/- 22% Y5V = -30ºC – 85ºC +22%/ -82% EIA : Electronic Industries Alliance (US) JIS : Japanese Industrial Standards 許容差 M = 20% Tolerance K = 10% J = 5%

2 温特 Temperature characteristics example
0.1uF 50V X7R / B / CH 特性 0.047uF 50V X7R / SL / C0G 特性 SL C0G CH X7R B X7R

3 印可電圧特性 DC bias characteristics example -1
10000pF 50V 1608 size CH / X7R / SL 特性　 1uF 10V B特性 size variation of 1005 / 1608 / 2012 / 3216 SL 3216 CH 2012 1608 X7R 1005

4 印可電圧特性 DC bias characteristics example -2
0.01uF X7R 50V品 Size variation of 1005 / 1608 / 2012 / 3216 4.7uF X7R Voltage variation of 10V / 16 / 25V / 50V品

5 印可電圧特性 DC bias characteristics example -3
0.47uF X7R 10V品 Size variation of 1005 / 1608 / 2012 / 3216 0.068uF U2J 10V(2012) / 50V(3216) / 100V (3216) CH / C0G has more FLAT characteristics

6 印可電圧特性 DC bias characteristics
And 温度特性 Temperature characteristics example for MCZ　LLC timing capacitor Ct 1500pF 50V 1608 CH 1005 X7R 1608 CH 1608 X7R 1608 X7R 1005 X7R

7 Compensation Capacitance varied シビアな時定数回路にはできるだけ CH/C0G を使用
Precise timing constant use (small value) -CH/C0G 大容量でClass2しか選べない時定数用途や位相補償系はできるだけ大きなサイズ品を 10%-20%の電圧でレーティングで使う Timing constant or phase compensation use (large value class 2 MLCC) -- Large size and enough high voltage with enough voltage margin (as 10% - 20% derating) Class 2品は耐圧ぎりぎりの使い方は避ける、 或いは容量対印可電圧を十分考慮した設計を行う。 Compensation Capacitance varied 0.68uF 0.22uF 0.47uF

8 MCZ5205SE (PFC + LLC) application example
Mid/High voltage High frequency Class 2 Large capacitance Time constant Ccomp(2nd) Ccomp1 Ct High voltage High ripple current High frequency Resonant CAP Class 2 Large capacitance Time constant Csst Class 1 CH/C0G Precise Time constant Ccomp2

9 村田製作所　MLCC 他受動部品特性検索 Application “SIMSURFING” 他
Japanese version : 中文(簡体字)version : English version :

10 スナバ / ZVSコンデンサ (QRC / LLCなど）　での使用
時折 PFCやQRC、LLCでの Drain – Source間CAPがかなり発熱している顧客も見受けられる。 High voltage snubbing cap loss can be calculated online.

11 以上、頭の片隅に入れて 顧客サポート時活用して下さい。 Take notice of these capacitance characteristics, And put them to practical use when supporting customer.