ECRI Microelectronics

Capacitance of thin film chip

  • 1. Overview
Thin-film chip capacitors are suitable for rf, microwave and millimeter wave applications. Suitable frequency: 100MHz ~ 100GHz, capacity: 50-4300pf. Pt/Au coating, suitable for welding.
The key technical indexes



2. Main technology indexes

Size:W×L

10×10mils to 90×90mils

(0.25×0.25mm to 2.25×2.25mm)

thickness:t

6mils±1mil&10mils±1mil

(0.150mm±0.025mm&0.250mm±0.025mm)

Electrode

Ti/Pt/Au  Ti/Ni/Au

The rated voltage (RWV)

50V for t=6mils(0.150mm)

100V for t=10mils(0.250mm)

Capacitance

50pF to 1000pF(nominal@+25℃ & 1kHz)

Capacity tolerance

M=±20%

Z=-20%/+80%

V=-0%/+100%

Loss Coefficient(DF)

<2.5%(@+25℃ & 1kHz)

Insulation resistance(IR)

>1010Ω

Dielectricbreakdown voltage(DWV)

RWV×2.5(minimum DWV @+25℃)


Capacitance of thin film chip
Model Series Max. Output Power (W) Input DC Voltage (V) Output Voltage (V)