VJ X8R Dielectric is a product of Vishay Vitramon. It is a surface mount multilayer ceramic chip capacitor for high temperature applications. This product has a high operating temperature dielectric that can maintain capacity at temperatures up to +150°C, resulting in frequency stability. It is suitable for applications such as deep hole drilling electronics and high temperature modules.
The VJ X8R Dielectric series from Vishay Vitramon are surface‑mount multilayer ceramic chip capacitors intended for high‑temperature environments such as deep‑hole drilling electronics and high‑temperature modules. They feature a high‑temperature dielectric that maintains capacitance stability over a wide temperature range.
Key specifications include an operating temperature range of –55 °C to +150 °C, capacitance values from 470 pF to 390 pF, voltage ratings of 25 VDC to 50 VDC, and a dissipation factor of up to 3.5 % (25 V) or 2.5 % (50 V) at 1 kHz. Additional data such as insulation resistance, dielectric withstanding voltage, and ordering information are provided for design and procurement.
| Operating Temperature | -55 °C to +150 °C |
|---|---|
| Capacitance Range | 470 pF to 390 pF |
| Voltage Rating | 25 VDC to 50 VDC |
| Temperature Coefficient of Capacitance (TCC) | XBR +15 % from –55 °C to +150 °C |
| Dissipation Factor (25 V rating) | Maximum 3.5 % at 1 V, 1 kHz |
| Dissipation Factor (50 V rating) | Maximum 2.5 % at 1 V, 1 kHz |
| Aging Rate | 1 % per decade (maximum) |
| Insulation Resistance at +25 °C | ≥100 kΩ·MΩ (or 1000 QF, whichever is less) |
| Insulation Resistance at +125 °C | ≥10 kΩ·MΩ (or 100 QF, whichever is less) |
| Dielectric Withstanding Voltage (DWV) | 250 % of rated voltage for <50 V parts |
They operate from –55 °C up to +150 °C.
The series is rated for 25 VDC to 50 VDC.
The maximum dissipation factor is 3.5 % at 1 V and 1 kHz.
They are intended for deep‑hole drilling electronics and high‑temperature modules.