Electronic Products Division - Santa Maria, California
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How High Voltage Capacitors Are Made
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High Voltage Capacitors with Mica Reliability
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HIGH VOLTAGE CAPACITORS
• Temperature Stability (-65°C to 125°C)
• High Reliability (Proven Rel-testing)
• 100% Inspection (Capacitance, Voltage, Dissipation Factor and Burn-in)
• Capacitance Stability (Temperature, Voltage and Frequency)
• Low Inductance capability (EFI Applications)
• Mechanical Durability (Military Shock and Vibration Environments) |
High Voltage Capacitors with Mica Paper
From Reynolds Industries
Electronic Products Division
- See
How High Voltage Capacitors Are Made - NEW
Glossary of High Voltage Capacitor
Terms:
MICA: Mineral silicates H2KA13(Si04 )3 naturally
occurring. An excellent
insulator resistant to temperatures. Used as a dielectric in capacitors
and as insulation in high voltage, high temperature environments.
Reynolds High Voltage Capacitors with mica paper
are manufactured with reliability as the prime
consideration. Reynolds engineers have developed and implemented an extensive
reliability proofing program consisting of thermoset epoxy impregnated MICA
dielectric systems over a period of 540,000 unit hours of operation. (consult
the factory for reliability data)
Reynolds High Voltage Capacitors are available
in a variety of configurations:
- Raw Sections: For use in potted/embedded
next higher assemblies.
- Wrapped and End capped: For
stand alone applications requiring no subsequent potting or embedment
processes. Wrap material is Mylar® or woven glass.
- Fiberglass Encased Epoxy-filled Construction: Provides
the attributes
of the epoxy molded configuration with no hard tooling required.
- Low Inductance/High Current: Ideal
for Exploding Foil Initiators (EFI).
Micapacitors designed for very low inductance (6nH) and high currents (3
to 10 kA) are available in any of the above configurations. Similar low
inductance, high current designs are available for Exploding BridgeWire
initiators (EBW).
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| Micapacitors |
Specifications |
General specifications
capacitance: 20 pF to 10 µF
Voltage Range: (operating)
1,000 to 60,000 D.C.
Temperature Range: (operating)
-55 to + 125 degrees C.
Energy Density:
0.2 to 1.5 joules per cubic inch.
(consult factory for application details)
Note: A two hour burn-in is performed
on every capacitor manufactured. |
capacitor Proof Voltage
A DC voltage, as listed below, shall be applied for a period of five seconds
with charge and discharge current limited to one ampere.
| Rated Voltage |
Test Voltage |
| 0 to 8.0 KV |
200% |
| 8.1 to 10.0 KV |
175% |
| 10.1 to 12.0 KV |
150% |
| 12.1 to 20.0 KV |
140% |
| 20.1 to 30.0 KV |
130% |
| 30.1 KV and up |
120% |
capacitance tolerance is plus or minus 10%
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High Voltage capacitors with mica paper
Applications
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Epoxy Molded Capacitors
Epoxy molded assemblies can be configured in solid complex shapes
and mounting arrangements. Units can contain several voltage and capacity
values and a variety of terminations.
These configurations offer stand-alone shock, vibration and environmental
security with Mica reliability.
Epoxy molded capacitors
are currently qualified for use on major military and commercial programs.
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Mica Paper capacitors
in Voltage Multipliers
Raw high voltage capacitors
are used in Reynolds
Mica plier voltage
multipliers. These units have output voltages ranging to 160 kVDC.
Mica pliers are used
in a wide range of military and commercial applications.
Typical applications are: CRT anode and focus supplies for airborne EFIS
(Electronic Flight Instrumentation Systems), X-Ray equipment and low power
(mini) TWT's.
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Mica Paper capacitor
Variety
Shown arevarious configurations: Epoxy molded, fiberglass encased
with epoxy filling, wrapped and end capped. Also shown are capacitors
attached
to low inductance strip lines for use on EFI and EBW initiators and
ESA&F systems.
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Special Order High Voltage Capacitors with Mica Paper
Let us design a high voltage mica capacitor to your requirements
by e-mail or FAX. Just
provide us with a few critcal items like operating voltage and temperature
and in two
days we will provide critical dimensions, weight, price and delivery! ORDERING
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