Z SERIES SUPERMETALLIZED POLYPULSE CAPACITORS FOR SWITCHING POWER SUPPLIES

LOW ESR • HIGH CURRENT • HIGH FREQUENCY

These SuperMetallized PolyPulse Capacitors are specifically designed for high current, high frequency applications like switching power supplies.

 

CONSTRUCTION:

 

Low loss SuperMetallized PolyPulse dielectric; extended foil, with high current end terminations. Type ZW Series are encased in a skin tight flame retardant* plastic wrap with epoxy end fill. *UL 510 Specification.

CAPACITANCE:

Measured at +25° C @ 1000Hz. MIL STD 202 Method 305

DISSIPATION FACTOR:

 

INSULATION RESISTANCE:

 

 

 

DIELECTRIC STRENGTH:

 

CURRENT STRENGTH:

 

 

EQUIVALENT SERIES RESISTANCE:

Shall be less than 2.0% at 100 KHz and +25°C for <5.0 mfd. Ref: MIL STD 202 Method 305

 

Shall be greater than 100,000 megohms/microfarads, but need not exceed 200,000 megohms measured at +25°C and electrified at 100VDC for two minutes maximum. Ref: MIL STD 202 Method 302.

 

Terminal to terminal 150% of the rated DC voltage.

 

The discharge of the DC rated voltage (need not exceed 200VDC) through a 2 milliohm mercury relay 1000 X shall result in no significant change in ESR.

 

Maximum ESR in milliohms @ 100KHz and +25° C

CAPACITANCE CHANGE:

 

 

AC VOLTAGE:

 

 

 

RMS CURRENT:

Maximum capacitance change with temperature is 1% @85°C and 2% @+125°C

 

The sum of the DC and Peak AC voltage applied to the capacitor should not exceed the rated DC voltage, nor should the RMS voltage exceed 220VAC.

 

Maximum RMS ripple current in amps @ +25°C @ 20-200KHz. See limits in table. Derate current 10% for every 25°C increase in temperature above 25°C.

PEAK CURRENT:

Maximum Peak current in amps @ +25°C for non-repetitive pulses or where the pulse time off is sufficient to allow cooling so overheating will not result. See limits in table.

DV/DT:

 

LEADS:

Maximum allowed change in volts per microsecond at the rated voltage. See limits in table.

Tin plated copper wire.

OPERATING TEMPERATURE:

-55° C to +125° C without voltage derating

 

SuperMetallized PolyPulse Size Data

Part Drawing ZW Series Oval Wrap and Fill

Metallized PolyPulse Graphs

Current Wave Forms and Calculations

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 Updated: September 20, 2001

Publisher: American Capacitor Corporation
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Copyright © 2001 American Capacitor Corporation. All rights reserved.