安规电容安规电容.ppt

* Safety Capacitor X2/Y3 X1/Y2 Introduce 禾伸堂 SCC HEC Certificate Number : By TUV UL E229738 The X2/Y3 X1/Y2 Specially Designed for Use in Modem, Facsimile, Telephone and Other Electronic Equipment where lighting surge occur T1=1.2us T2=50us T1 T2 30 50 90 100(%) t 2.5KV for (X2) 5.0KV for (X1/Y2) Safety Impulse Requirement 禾伸堂 Safety Capacitor X2/Y3 X1/Y2 EN60950 impulse 10/700us 2.5KV for Y3 Class SCC ( M CY CY CX Class X Capacitors ( Cross Capacitor) Class Y Capacitors ( Ground Capacitor) Classified of Capacitors 禾伸堂 Safety Capacitor X2/Y3 X1/Y2 none General requirements ≤ 1.2KV X3 for CR≤1.0uF :Up=2.5KV for CR1.0uF :Up=(2.5/√CR)KV General requirements ≤ 2.5KV X2 for CR≤1.0uF :Up=4.0KV for CR1.0uF :Up=(4/√CR)KV Use with high peak-voltage 2.5KV ≤ 4.0KV X1 Peak value of the surge voltage to be added before continuous test application Impulse peak operating voltage Sub-class Class X Capacitors SCC 禾伸堂 Safety Capacitor X2/Y3 X1/Y2 2.5KV 150V basic or additional insulation Y4 none ≥150V ≤250V basic or additional insulation Y3 5.0KV ≥150V ≤250V basic or additional insulation Y2 8.0KV ≤250V Double or reinforced insulation Y1 Peak value of the surge voltage to be added before continuous test Rated Voltage Range Type of the bypass insulation Sub-class Class Y Capacitors EN60950 impulse 10/700us 2.5KV for Y3 Class SCC Time Schedule Y2 Dimension Trend Y3 Before 2003 Y2 Y3/Y2 After 2004 2003~2004 X7R/2220 禾伸堂 Safety Capacitor X2/Y3 X1/Y2 X7R/2208 X7R/2211 NPO/1808 X7R/1812 X7R/1808 SCC Capacitance Scope 禾伸堂 Safety Capacitor X2/Y3 X1/Y2 Red Frame : under TUV/UL certification SCC 禾伸堂 Safety Capacitor X2/Y3 X1/Y2 Hi-Pot Testing Requirement Normal Y2/Y3 Class : 1500Vac or 2200Vdc for International Standard TS X2/Y3 Class : 3000Vac or 4200Vdc for the Australian safety requirement SCC Test circuit for DC test Less than or equal to 1.0 s and greater than 0.01s. Test circuit for AC test The voltage shell be raised from near zero to