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| INTRODUCTION:
The COG (NPO) series is a high Q, low K temperature compensating type of dielectric with stable electrical properties under varying voltage, temperature, frequency and time. The series is suitable for circuits requiring low loss, circuits with pulse, timing circuits and for tuning applications. |
| FEATURES:
Very low temperature coefficient Stable electrical characteristics High capacitance and miniature size Consistent dimensions and surface finish Engineered for Automatic feeding and insertion |
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| GENERAL SPECIFICATIONS: | |
| Operating Temperature Range: | -55 to 125 deg.C |
| Temperature Coefficient, max: | 0+/-30 ppm/deg.C |
| Temp-Voltage Coefficient max: | @WVDC: 0+/-30 ppm/¢J |
| Dissipation Factor(tan d) | @ 25C:0.1% max, 0.02% typical |
| Insulation Resistance (IR) | @ 25C:lesser of 100 G[or 1000 M uF |
| @125C:lesser of 1.0 G[or 10 M uF | |
| Ageing Rate: | 0% Per Decade Hour |
| Testing Parameters: | 1 MHz for Units <=100pF |
| 1 KHz for Units > 1000pF | |
| 1.0 Vrms +/-0.2 Vrms 25C, 0 Volt. bias | |
| Dielectric Withstanding Voltage: | 2.5 x WVDC |
| COG (NPO) has the least value of temperature coefficient.
The temperature coefficient characteristics is illustrated in Figure 1.1. Figure 1.2 illustrates the variation pattern of Dissipation Factor with respect to temperature. The AC Voltage coefficient and DC Voltage coefficient are illustrated in Figures 1.3 and 1.4 respectively. |
| COG (NPO) Characteristic Graphs | |||
FIGURE 1.1
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FIGURE 1.2
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FIGURE 1.3
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FIGURE 1.4
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| TEMP. CHAR./CAP. VALUE/RATED VOLTAGE | |||||||||||||||||||||||||||||||||||||
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| When ordering COG/NPO series chip capacitor, Please use
the type/part numbers as noted above. (Eg:U0805C 101 JNT) |
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