• Self-healing property 
  • High DV/DT
  • Low ESR
  • Low loss polypropylene dielectric 
  • Capacitance
15nF ~ 1.5nF
  • Tolerance
±5%, ±10%
  • Operating Temp
-40°C ~ 85°C
  • RoHS
ROHS
  • Voltage Rated DC
850V ~ 3000V

Typical applications :

  • Energy conversion and control in power electronics 
  • Protection circuits in SMPS 
  • "Turn On" and "Turn Off" snubber circuits
PN
Capacitance
Voltage Rated AC
Tolerance
Mounting
Operating Temp
RoHS
Voltage Rated DC
SI00U150850AI0P10AXLK01 0.15µF 450Vac ±10% - - - 850V
SI00U220850AI0P20AXLK01 0.22µF 450Vac ±10% - - - 850V
SI00U330850AI0P30AXLK01 0.33µF 450Vac ±10% - - - 850V
SI00U470850AI0P40AXLK01 0.47µF 450Vac ±10% - - - 850V
SI00U680850AI0P50AXLK01 0.68µF 450Vac ±10% - - - 850V
SI000010850AI0P60AXLK01 1µF 450Vac ±10% - - - 850V
SI01U200850AI0P70AXLK01 1.2µF 450Vac ±10% - - - 850V
SI01U500850AI0P80AXLK01 1.5µF 450Vac ±10% - - - 850V
SI00U221000AI0P20AXLK01 0.22µF 500Vac ±10% - - - 1000V
SI00U331000AI0P90AXLK01 0.33µF 500Vac ±10% - - - 1000V
SI00U471000AI0PA0AXLK01 0.47µF 500Vac ±10% - - - 1000V
SI00U681000AI0P50AXLK01 0.68µF 500Vac ±10% - - - 1000V
SI000011000AI0P60AXLK01 1µF 500Vac ±10% - - - 1000V
Compliance and certifications
certification
IEC
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Main applications

Frequently Asked Questions

Find answers to the most frequently asked questions about our products and services.
Mica Dielectric Capacitor Technology

This natural mineral insulator has outstanding dielectric properties that are ideal for long-life high-stability capacitors with low loss at all frequencies, and high dielectric strength. This type of capacitor is used particularly for high frequency and delay line applications, oscillating circuits, emission devices and calibrators.

Mica dielectric capacitor technology allows for several custom design applications including: 

  • High voltage capacitors (up to 50 kV)
  • High temperature capacitors (up to 250°C)
  • Precision capacitors (up to ± 0.1%)
  • High stability capacitors (– 20 + 30 ppm/°C)
  • High frequency capacitors ( up to several GHz). 

The majority of these capacitors are manufactured to comply to specifications NF-C-83120;MIL-C-5 and MIL-PRF-39001 standards.

 

Mica capacitors are noted for the following characteristics:

  • Temperature performance
  • Low loss at all frequencies
  • High dielectric strength
  • Stability over time
Why choose a Silvered Mica Capacitor?

Silver mica capacitors provide superior stability and low loss when used in RF power circuits that require low pico farad (pF) and nano farad (nF) ranges. Older silver mica capacitors were manufactured in layers of mica and silver, but the layering allowed room for air gaps that reduced the stability and could also create stress fractures in the assembly.

Modern manufacturing uses silver plated to mica layers, eliminating the gaps. When the desired number of layers is obtained, the assembly is coated in an epoxy or ceramic resin. The coating reduces fracturing of the layers and seals the assembly from moisture and particles that could interfere with the capacitance value.

Mica capacitors are useful in circuits for ripple filtering and are often found in time constant, coupling or resonance circuits. In addition to radio circuits, they are used in TV transmitters and Cable TV amplification circuits. Mica is also a superior choice in high-voltage inversion and power conversion for energy absorbing snubber applications with capacitances of up to 10 nF.

High Voltage and Custom Mica Capacitors

Standard silver mica capacitors are normally designed to handle voltages from 100 to 1000 volts. High-voltage RF transmitter applications can call for higher tolerances. Mica capacitors are available for voltages up to 20kV.

Our expert engineering team can create the mica capacitor with the characteristics you require. Send us your drawing or file and we will work with you to manufacture the correct size, lead style and capacitance you desire.

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