Types 951C and 953B, Metallized Polypropylene Film Capacitors

Protected Metalized Polypropylene Film Capacitors Target UPS Systems and AC Filtering Applications

Design incorporates fuse protection, UL 810 Approved for Fail-Safe Operation

Cornell Dubilier announces the availability of its newest Metalized Polypropylene Film Capacitors for UPS, AC power supplies and general AC filtering applications.  The 951C and 953B Series offer strong performance for filtering in applications where high ripple currents are encountered and benign end-of-life failure mode is essential.  The 951C has a cylindrical body with axial leads, while the 953B has a rugged radial box form factor.

Both capacitors offer a fused, segmented metallization pattern, providing significant circuit protection.  UL 810 approval assures fail-safe operation under fault conditions. The metallization pattern is deposited on a low-loss, high-grade polypropylene dielectric.   The built-in fuse-links limit capacitance loss to a small segment within the capacitor. This is in contrast to the larger areas of uncontrolled capacitance loss observed with non-segmented types.  This capability is not usually available for board-mounted capacitors.

The axial-leaded 951C Series is offered in values ranging from 0.825 to 40µF, while the 953B spans 2.5 to 50µF.  Voltage ratings in both series are available at 160, 250 and 275Vac. Both types offer -40 to +85° C performance and meet the requirements of UL 94V-0 for flammability.

With a 10,000 hour service-life expectancy without derating, series 951C and 953B capacitors will excel at providing reliable filtering and smoothing for today's demanding applications in UPS systems, AC power supplies and more.

Highlights

  • Fuse protection
  • UL 810 recognized
  • Low dissipation factor
  • Self healing
951 C 953 B Trio

Applications Include:

UPS Systems, AC output filtering


Find a Rep

Buy these parts from distributor stock below:

  • Mouser
  • Digi-key
  • Tti
  • distributor
  • distributor

New Products

  • Type Q, Defibrillator Capacitors for AEDs and Professional Use
    Released May, 2020

    Type Q, Defibrillator Capacitors for AEDs and Professional Use

    Designed specifically for today’s quick response defibrillators, the Q Series meets the reliability demands of Class III medical devices. Used extensively in professional-grade and automated external defibrillators (AEDs), the series offers designers the highest in-class energy density and broadest range of packaging options. Q Series capacitors are designed for use in monophasic and bi-phasic defibrillators with energy densities as high as 2 J/cc.

    Read More »

  • 1mm-Thin Polymer Aluminum Electrolytics  Provides High Ripple Current and Capacitance
    Released Mar, 2020

    1mm-Thin Polymer Aluminum Electrolytics Provides High Ripple Current and Capacitance

     The new PPC Series of ultra-thin polymer aluminum electrolytic capacitors from Cornell Dubilier represents a totally new capacitor form factor. Designed specifically for applications requiring high ripple current and the thinnest possible profiles, type PPC opens up new product design options.

    Read More »

  • 8,000 Hour, 105° C Aluminum Electrolytic Snap-in Capacitors
    Released Jan, 2020

    8,000 Hour, 105° C Aluminum Electrolytic Snap-in Capacitors

    The 381-383LL snap-in series, designated with an expected life of 8,000 hours at full-rated conditions, demonstrates superb stability in capacitance and DC leakage current over time on test. The snap-in series is targeted for use in critical applications where long life and reliability are paramount. 

    Read More »