When Stability Meets High Voltage: The KEMET PEH200VO4220M Advantage
In the world of industrial automation, a solar inverter manufacturer recently faced recurring failures in their DC-link circuits during peak summer operations. Temperatures soared to 85°C, causing standard capacitors to degrade rapidly. Their solution? Switching to KEMET’s RIFA PEH200VO4220M capacitors. Post-implementation data showed a 68% reduction in unexpected downtime and a lifespan extension from 1,200 to over 5,000 hours under continuous 200VDC loads.
Built Tough for Real-World Challenges
The PEH200VO4220M isn’t just another aluminum electrolytic capacitor. With its 4200µF capacitance and 200V rating, it’s engineered for mission-critical applications:
- Wind turbine pitch control systems (operating at -40°C in Nordic installations)
- Medical MRI power supplies (maintaining <2% ripple current at 20kHz)
- Electric bus charging stations (handling 150A surge currents daily)
Case Study: Keeping Trains on Track
Swiss rail operator SBB reported a 92% reliability improvement in their traction converters after adopting these capacitors. The self-healing oxide layer technology reduced leakage current by 41% compared to previous components, crucial for systems experiencing 50,000+ charge cycles annually.
Why Engineers Trust This Component
KEMET’s 83 years of capacitor expertise shines through in the PEH series. The PEH200VO4220M features:
- Snap-in design with 10kN contact force (vs industry average 6kN)
- ±20% capacitance tolerance across -40°C to +105°C range
- RoHS3 compliance with halogen-free electrolyte
With 97.2% of surveyed users reporting improved system longevity in harsh environments, this capacitor continues to power innovation where failure isn’t an option.
