General Specifications

The Type 418P Orange Drop

ronments and applications. Type 418P capacitors are wound from the most reliable polyester film and alum-

inum foil available and are protected by a rugged conformal coating of orange epoxy. They may be operated

up to +125°C with proper derating.

The 418P series finds use in many commercial and industrial applications, from power supplies and audio

amplifiers to welding equipment and ultrasonics.

Operating Temperature Range:

The standard operating temperature range for

polyester film is -55°C to +85°C. The 418P

may be operated at full voltage within this

temperature range.

The 418P may be operated up to +105°C

provided the DC working voltage is reduced

to 70% of the +85°C rating (full rating), and

up to +125°C with a 50% reduction from the

+85°C rating (full rating).

For more specific details regarding operation

above +85°C please contact our design

engineering department.

The maximum operating temperature for the

418P polyester film capacitor is +125°C.

Dielectric Withstanding Voltage:

Units rated below 1000 VDC shall withstand a

DC potential of 250% of rated voltage applied

between terminals for not more than 5 seconds.

Units rated at 1000 VDC shall withstand a DC

potential of 200% of rated voltage applied between

terminals for not more than 5 seconds.

Lead Bend Test:

After 3 consecutive 180° bends. No damage.

Humidity Testing:

Units subjected to 95% relative humidity for 72

hours with no voltage applied at +75°C. After 4

hours of drying minimum product of insulation

resistance and capacitance shall be 5,000 M -µF

DC Voltage Life Test:

500 hours at +85°C at 150% of rated voltage. After

test; capacitance shall not have changed by more

than ±5% of initial value, insulation resistance shall

not have decreased by more than 50% of initial value

and dissipation factor shall not have increased to

more than 1.0%. In addition, there should be no

open or short circuits, and no sign of visible damage.

Typical Temperature Characteristics:

CDE Cornell Dubilier • 1605 E. Rodney French Blvd. • New Bedford, MA 02744 • Phone: (508)996-8561 • Fax: (508)996-3830

Type 418P, Orange Drop®, Polyester Film/Foil Capacitors