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KEMET Evox Rifa PHE426 & PHE450 Metallized Film Pulse Capacitors

KEMET Evox Rifa PHE426 and PHE450 metallized film pulse capacitors use a polypropylene dielectric and are designed for applications with intermittent charges and discharges at high values of the original current charge or discharge. ThePHE426 and PHE450 pulse capacitors are generally used for coupling, bypassing, filtering, snubbering or pulse operation in SMPS at low and high AC voltages of high frequency where there is a need for high pulse rise time and high ionization levels. KEMET Evox Rifa pulse operation capacitors exhibit fast rise and fall times resulting in high dU/dt when exposed to to high current pulses. KEMET Evox Rifa pulse capacitors are constructed by depositing the electrodes under a vacuum on the plastic film with contact to the metallized layers made possible through a special metal alloy spray. The results are a KEMET Evox Rifa pulse capacitor with low inductance and low series resistance available in multiple winding configurations depending on the voltages and lead spacing needed.

KEMET Evox Rifa PHE426 and PHE450 Pulse Capacitors:

Evox Rifa	PHE426	PHE450
KEMET Evox Rifa EMI Suppression Capacitors
International Standard:	IEC 60384-16; Grade 1.1	IEC 60384-17; Grade 1.1
Rated Voltage VAC (VDC):	63 - 250 VAC (100 - 1000VDC)	180 - 900 VAC (250 - 2500 VDC)
Test Voltage (Factory test):	2200 VDC	2200 VDC
Rated Temp °C:	85 °C	85°C
Capacitance range:μF	0.001 uF - 27.0 uF	0.00033 uF - 12.0 uF
Capacitance Tolerances:	5 ±%, other tolerances on request	5 ±%, other tolerances on request
Climatic Category (IEC 60068)	55/105/56/B	55/105/56/B
Pulse rise time, V/μs:	30 - 600	200 - 2500
Lead Spacing, mm	5.0, 7.5, 10.0, 15.0, 22.5, 27.5, 37.5	7.5, 10.0, 15.0, 22.5, 27.5, 37.5
Packaging	Bulk in boxes, on tray or taped on reels	Bulk in boxes, on tray or taped on reels
Part Builder	View Datasheet	View Datasheet

KEMET Evox Rifa PHE426 Pulse Capacitors

Features & Benefits: Single metallized film pulse capacitor Vacuum evaporated aluminum electrodes Encapsulated in self-extinguishing material Two different winding construction depending on voltages and lead spacing RoHS Compliant

Applications: Pulse Operation in: SMPS TVs Monitors Electrical ballasts Other high frequency applications demanding stable operations

KEMET Evox Rifa PHE450 Pulse Capacitor

Features & Benefits: Polypropylene dielectric with double metallized polyester film as electrodes Encapsulated in self-extinguishing material Small sizes Three different winding construction depending on voltages and lead spacing RoHS Compliant

Applications: High frequency application with current stress Deflection circuits in TV-sets Protection circuits in SMPS Protection circuits in electronic ballasts Replacing PHE427 Replacing PHE428

Additional Information:

• KEMET Evox Rifa Pulse/ AC High Frequency Capacitors
• Additional KEMET Evox Rifa Part Ordering Information

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