Data Sheet

CERAMIC CHIP CAPACTIORS NPO (COG) DIELECTRIC
APPLICATION
NPO (COG) dielectric properties; suited for precision circuits, requiring stable dielectric characteristics:
 Negligible dependence of capacitance and dissipation factor on time, voltage, and frequency
 Low-loss (High Q)
 Predictable linear temperature coefficient
 No piezoelectric behavior
General Specification
 Operating temperature range : –55℃ ~ +125℃
 Temperature coefficient: 0±30ppm/
℃
 Capacitance Range: 0.5pF ~ 0.22uF
(Test condition: 1.0 ±0.2 Vrms, 1KHz, for≦1000pF use 1 MHz)
 Capacitance Tolerance:
Preferred ±5%, ±10% . Others available: ±0.05pF, ±0.1pF, ±0.25pF, ±0.5pF, ±1% , ±2%
 Rated Voltage: 25VDC, 50VDC, 100VDC
 Q value : C＜30pF : Q≧400+20C, C≧30pF : Q≧1000 (Test condition: 1MHz, 1KHZ for C≧1000pF, 1Vrms, 25℃)
 Insulation resistance: 100,000 MΩ or 1,000 Ω-F min, whichever is less. (rated voltage applied at 25℃)
 Dielectric strength: >250% of Rated Voltage, duration 1〜5 seconds, Charging and discharging current less than 50mA.
Characteristics
Capacitance changeΔC/C
25
versus
temperature T (tolerance range)
Capacitance changeΔC/C
0
versus
superimposed dc voltage V
Insulation resistance R
ins
versus
Temperature T
Capacitance changeΔC/C
1
versus time (aging rate)
22
Weltron Elektronik GmbH - Phone: [phone] Fax: [phone] E-Mail: [e-mail] Internet: www.weltron.de
Weltron Elektronik GmbH - Phone: [phone] Fax: [phone] E-Mail: [e-mail] Internet: www.weltron.de