MPP 10uF 630V

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Metallized polypropylene DC-link capacitor, 10µF 630V, low ESR/ESL. Ideal for inverter DC-link and power factor corre...

Product Overview

Description

The Samwha MPP series metallized polypropylene capacitors are designed for demanding DC-link and power electronics applications. With 10µF capacitance and 630V DC rating, this capacitor is ideal for 400V DC bus inverters, motor drives, and power factor correction circuits.

The polypropylene dielectric provides low losses (dissipation factor <0.001), high insulation resistance, and excellent frequency characteristics up to several hundred kHz. The metallized construction offers self-healing properties for enhanced reliability.

The box-type package with overpressure safety device provides robust mechanical protection and safe failure mode. Low ESL design makes this capacitor suitable for high-frequency IGBT inverter applications.

Product Series

MPP

Primary Application

Inverter DC-link filtering

Key Features

  • Metallized polypropylene for low losses
  • Self-healing properties for reliability
  • High ripple current 8A capability
  • Low ESL for high-frequency applications
  • Overpressure safety device
  • 20+ year expected lifetime

Specifications

Capacitance 10µF ±5%
Voltage Rating 630V DC
AC Voltage 250V AC
Temperature Range -40°C to +105°C
Dissipation Factor <0.001 at 1kHz
ESR <10mΩ at 100kHz
ESL <20nH
Ripple Current 8A RMS at 100kHz, 105°C
Size 32mm x 18mm x 35mm (L x W x H)

Applications

Inverter DC-link filtering

Electronic system design

Motor drive power supplies

Motor drive and control systems

Power factor correction

Electronic system design

Solar inverter DC bus

Renewable energy systems

UPS power systems

Electronic system design

Documents & Resources

FAE Expert Insights

R

"The MPP series is my standard recommendation for inverter DC-link applications. The 10µF 630V capacitor is perfect for 400V class motor drives and solar inverters. The key advantage is the combination of high ripple current capability (8A) and low ESL - this capacitor can handle the high-frequency ripple from modern IGBTs and SiC MOSFETs much better than electrolytic alternatives. I've measured the ESL at around 15nH, which is excellent for a capacitor of this size. The self-healing property is a major reliability advantage - I've never seen a catastrophic failure with these capacitors, just gradual capacitance decrease over many years. For thermal design, the box case allows good heat dissipation, but I still recommend keeping ambient below 70°C for 20-year life. The overpressure safety device provides peace of mind for safety-critical applications. If you're designing motor drives or solar inverters, the MPP series offers the best combination of performance and reliability."

Excellent DC-link capacitor for motor drives and solar inverters

— Robert Zhang, BeiLuo

Frequently Asked Questions

What is the ripple current capability of the MPP 10µF 630V capacitor?

The MPP 10µF 630V capacitor is rated for 8A RMS ripple current at 100kHz and 105°C. This high ripple current capability is achieved through the low ESR (<10mΩ) and excellent thermal design of the box case. The ripple current rating varies with frequency: At 100kHz: 8A RMS (rated), At 10kHz: 6A RMS, At 1kHz: 3A RMS. Higher frequencies allow higher ripple current due to skin effect in the metallized electrodes. Temperature derating: At 85°C: 10A RMS (125% of rated), At 65°C: 12.5A RMS (156% of rated). The high ripple current capability makes this capacitor ideal for inverter DC-link applications where high-frequency ripple from IGBT switching must be filtered. For high-power inverters, multiple capacitors can be paralleled to increase total ripple current capability.

The MPP series can handle 8A ripple current continuously. Parallel multiple units for high-power inverter applications.

MPP ripple current film capacitor rating
How does the MPP series compare to electrolytic capacitors for DC-link applications?

The MPP film capacitor offers significant advantages over electrolytic capacitors for DC-link applications: Lifetime - MPP: 200,000+ hours vs Electrolytic: 10,000-15,000 hours at similar temperatures. Film capacitors last 10-20x longer. Ripple Current - MPP: 8A for 10µF vs Electrolytic: 1-2A for equivalent size. Film capacitors handle 4-8x more ripple current. ESR - MPP: <10mΩ vs Electrolytic: 50-200mΩ. Lower ESR reduces power dissipation and heating. ESL - MPP: <20nH vs Electrolytic: 50-100nH. Lower ESL improves high-frequency filtering. Temperature Range - MPP: -40°C to +105°C stable vs Electrolytic: ESR increases dramatically at low temperatures. Size - MPP is larger for same capacitance but handles much higher ripple current. Cost - MPP has higher initial cost but lower total cost of ownership due to longer lifetime. For inverters operating 10+ years, film capacitors are the preferred choice despite higher initial cost.

Use MPP film capacitors for inverter DC-links requiring 10+ year lifetime. Higher initial cost is offset by reliability.

film vs electrolytic DC-link inverter capacitor selection
What is the expected lifetime of the MPP 10µF 630V in typical inverter applications?

The MPP 10µF 630V capacitor has an expected lifetime of 200,000+ hours at rated voltage and 85°C. In typical inverter applications: Solar Inverters - Operating at 60-70°C case temperature with 80% voltage derating: Expected lifetime >30 years. Motor Drives - Operating at 50-60°C case temperature: Expected lifetime >40 years. UPS Systems - Operating at 40-50°C case temperature: Expected lifetime >50 years. The lifetime is limited by gradual capacitance decrease rather than catastrophic failure. Capacitance typically decreases 1-2% over 100,000 hours. End of life is defined as 5% capacitance decrease, which takes 200,000-300,000 hours in typical conditions. Unlike electrolytic capacitors, film capacitors do not have a wear-out mechanism - they gradually degrade rather than failing suddenly. This predictable aging allows maintenance planning and avoids unexpected failures.

MPP capacitors last 20-30+ years in typical inverter applications. Plan for gradual capacitance decrease, not sudden failure.

MPP capacitor lifetime film capacitor reliability
Can MPP capacitors be used in parallel for higher capacitance?

Yes, MPP capacitors can be connected in parallel to increase total capacitance and ripple current capability: Capacitance adds directly - Two 10µF capacitors in parallel provide 20µF total. Ripple current adds directly - Two capacitors provide 16A total ripple current capability. ESL reduces - Parallel connection reduces effective ESL by approximately 30-40%. Best practices for paralleling: Use identical part numbers for balanced current sharing, Keep connection leads as short and equal as possible, Use bus bars for high-current connections, Space capacitors to allow heat dissipation. For high-power inverters (50kW+), it's common to use 4-8 MPP capacitors in parallel to achieve required capacitance and ripple current. The self-healing property of each capacitor is maintained in parallel configuration. Voltage balancing resistors are not required for DC-link applications as the capacitors share voltage naturally.

Parallel multiple MPP capacitors for high-power inverters. Use identical parts and short, equal connections.

film capacitor parallel DC-link capacitor bank
What safety features does the MPP series include?

The MPP series includes several safety features for reliable operation: Overpressure Safety Device - Each capacitor has a pressure-sensitive disconnect that opens the circuit if internal pressure builds up due to fault conditions. This prevents case rupture and ensures safe failure mode. Self-Healing - The metallized construction provides self-clearing of minor dielectric faults, preventing catastrophic failures. Flame Retardant Case - The box case is made of flame-retardant plastic meeting UL94 V-0 requirements. Internal Fuse - Some models include internal fuse elements that disconnect the capacitor in case of severe overcurrent. Safety Certifications - MPP capacitors are certified to IEC 61071, UL 810, and EN 60252-1 standards. These safety features make MPP capacitors suitable for critical applications where failure could cause equipment damage or safety hazards. The predictable aging characteristics also allow preventive maintenance before failure occurs.

MPP capacitors include multiple safety features. Suitable for critical applications requiring safe failure modes.

film capacitor safety MPP protection features
What mounting considerations apply to MPP box-type capacitors?

MPP box-type capacitors require proper mounting for reliable operation: Mounting Orientation - Can be mounted in any orientation (horizontal, vertical, or upside down) as there is no liquid electrolyte. Mechanical Mounting - Use M5 or M6 bolts through the mounting holes in the case base. Torque to 2-3 Nm maximum to avoid case damage. Spacing - Maintain minimum 10mm clearance from adjacent components for heat dissipation. For high-ripple applications, increase spacing to 20mm. Connection - Use ring terminals on the M8 threaded studs. Torque to 3-4 Nm. Use appropriate wire gauge for rated ripple current. Thermal Management - Ensure adequate airflow around the capacitor. The case temperature should not exceed 85°C for maximum lifetime. Forced air cooling may be required in high-temperature environments. The box case provides good mechanical protection but should not be subjected to excessive mechanical stress or vibration.

Mount MPP capacitors with proper bolt torque and spacing. Ensure adequate cooling for high-ripple applications.

film capacitor mounting MPP installation