Type 418P, Orange Drop, Polyester Film/Foil Capacitors
Type 418P Orange Drop
Round Profile
Polyester Film/Foil
Capacitors
Features
Radial-lead. Round profile.
Non-inductively wound, extended
foil construction.
Ratings up to 1000 Volts DC.
Insulation Resistance:
100,000 M for C .25 F
At +25C:
Specifications
25,000 M-F for C > .25 F
10,000 M for C .15 F
At +85C:
1,500 M-FforC> .15 F
Capacitance Range:
.001 to 1.0 F At +105C: 1,500 M for C .17 F
250 M-F for C > .17 F
Capacitance Tolerance:
At +125C: 200 M for C .13 F
5%, 10%, 20%
25 M-F for C > .13 F
Voltage Ratings:
Dissipation Factor:
100 to 1000 Volts DC
0.75% Maximum @ 1 KHz, +25C
Encapsulation:
Operating Temperature Range:
Conformal coating of orange, flame
-55C to +85C (at full voltage)
retardant epoxy. Meets UL94V-0
specifications.
Voltage Derating:
At +105C, 70% of +85C rating.
Dielectric/Construction:
At +125C, 50% of +85C rating.
Polyester film, single section design.
Non-inductively wound with extended
Lead Wire:
aluminum foil.
Tinned copper-clad steel,
.032 (0.8) diameter, #20 AWG
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
General Specifications
The Type 418P Orange Drop is designed and manufactured for operation in a wide range of demanding envi-
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 +125C 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:
Humidity Testing:
The standard operating temperature range for
Units subjected to 95% relative humidity for 72
polyester film is -55C to +85C. The 418P
hours with no voltage applied at +75C. After 4
may be operated at full voltage within this
hours of drying minimum product of insulation
temperature range.
resistance and capacitance shall be 5,000 M-F
The 418P may be operated up to +105C
provided the DC working voltage is reduced DC Voltage Life Test:
to 70% of the +85C rating (full rating), and
500 hours at +85C at 150% of rated voltage. After
up to +125C with a 50% reduction from the
+85C rating (full rating). test; capacitance shall not have changed by more
than 5% of initial value, insulation resistance shall
For more specific details regarding operation
not h ave decreased by more than 50% of initial value
above +85C please contact our design
and dissipation factor shall not have increased to
engineering department.
more than 1.0%. In addition, there should be no
The maximum operating temperature for the open or short circuits, and no sign of visible damage.
418P polyester film capacitor is +125C.
Typical Temperature Characteristics:
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.
CDE Cornell Dubilier 1605 E. Rodney French Blvd. New Bedford, MA 02744 Phone: (508)996-8561 Fax: (508)996-3830