The X7R (BX) dielectric has moderate K and is temperature stable. It shows a moderate change in electrical properties under changing temperature, voltage and frequency and is suitable for by-passing coupling and frequency discrimination circuits.
Features:
- Stable electrical characteristics
- High capacitance and miniature size
- Consistent dimensions and surface finish
- Engineered for automatic feeding and insertion
General specifications:
Operating temperature range: –55°C to +125°C
Temperature coefficient: ΔC Max.: ±15%
Temp-voltage coefficient: ΔC Max. @ WVDC: X7R: Not applicable, BX: +15%, –25% max.
Dissipation factor (tan δ) @ 25°C: 2.5% max. 1.6% typical
Insulation resistance, @ 25°C: Lesser of 10GΩ or 1000MΩµF, @ 125°C Lesser of 1.0GΩ or 10MΩµF
Ageing rate: –1.5% per decade hour
Testing parameters: 1kHz ± 50Hz, 1.0Vrms ± 0.2Vrms, 25°C, 0 volt bias
Dielectric withstanding voltage: 2.5 X WVDC
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