
I. Product Description
MKP (Metallized Polypropylene) and MPT (Metallized Polypropylene Tubular) are axial metallized film capacitors using polypropylene (PP) film as the dielectric with surface-evaporated metal electrodes and non-inductive structures.
- MKP: Typically cylindrical or flat with axial leads, suitable for high-precision and high-frequency circuits.
- MPT: Tubular design with polyester tape wrapping and epoxy resin-sealed ends, ideal for high-pulse and high-voltage applications.
II. Key Features
Characteristics |
MKP |
MPT |
Dielectric Material |
Polypropylene Film |
Polypropylene Film |
Structure |
Non-Inductive Winding |
Non-Inductive Tubular Winding |
Self-Healing Property |
Excellent |
Excellent |
Loss Factor (tanδ) |
Extremely Low (<0.001) |
Low (<0.001) |
Insulation Resistance |
High (>30,000 MΩ) |
High (>25,000 MΩ) |
Temperature Range |
-55℃ to +105℃ |
-40℃ to +105℃ |
III. Main Applications
- MKP:
- Pulse circuits, switch-mode power supplies (SMPS), thyristor protection.
- Filtering, energy storage, timing, and sample-hold circuits.
- Hi-Fi audio equipment (coupling, decoupling).
- MPT:
- Audio devices (crossovers, power amplifiers).
- Motor starting and running control.
- High-voltage pulse circuits, electronic ballasts.
IV. Outline Drawing
- Structure: Axial lead design with direct connection between end electrodes and metallized film.
- Packaging: Polyester tape wrapping with epoxy resin-sealed ends for moisture and vibration resistance.
- Dimensions: Cylindrical diameter typically 5.5~20mm, length 14~58mm (varies by model).
V. Product Parameters (Table)
Parameter |
MKP (Example: MKP1839) |
MPT (Example: Fcap-MPT-01) |
Capacitance Range |
47pF~22μF |
0.001μF~10μF |
Voltage Range |
160V~630V DC/AC |
100V~630V DC/AC |
Tolerance |
±1%, ±2% (E96 series available) |
±5%, ±10% |
Temperature Range |
-55℃ to +105℃ |
-40℃ to +105℃ |
ESR |
Extremely Low (<1Ω) |
Low (varies by model) |
Pulse Handling |
High |
High |
VI. Application Fields
- Power Electronics: Switch-mode power supplies, high-voltage filtering, thyristor protection.
- Consumer Electronics: Audio equipment (power amplifiers, crossovers), TVs (S-correction, flyback circuits).
- Industrial Control: Motor drives, electronic ballasts, welding machines.
- New Energy: Solar inverters, energy storage systems.
Note: Specific parameters are subject to the manufacturer’s datasheet. Variations may exist between models.
I. Product Description
MKP (Metallized Polypropylene) and MPT (Metallized Polypropylene Tubular) are axial metallized film capacitors using polypropylene (PP) film as the dielectric with surface-evaporated metal electrodes and non-inductive structures.
- MKP: Typically cylindrical or flat with axial leads, suitable for high-precision and high-frequency circuits.
- MPT: Tubular design with polyester tape wrapping and epoxy resin-sealed ends, ideal for high-pulse and high-voltage applications.
II. Key Features
Characteristics |
MKP |
MPT |
Dielectric Material |
Polypropylene Film |
Polypropylene Film |
Structure |
Non-Inductive Winding |
Non-Inductive Tubular Winding |
Self-Healing Property |
Excellent |
Excellent |
Loss Factor (tanδ) |
Extremely Low (<0.001) |
Low (<0.001) |
Insulation Resistance |
High (>30,000 MΩ) |
High (>25,000 MΩ) |
Temperature Range |
-55℃ to +105℃ |
-40℃ to +105℃ |
III. Main Applications
- MKP:
- Pulse circuits, switch-mode power supplies (SMPS), thyristor protection.
- Filtering, energy storage, timing, and sample-hold circuits.
- Hi-Fi audio equipment (coupling, decoupling).
- MPT:
- Audio devices (crossovers, power amplifiers).
- Motor starting and running control.
- High-voltage pulse circuits, electronic ballasts.
IV. Outline Drawing
- Structure: Axial lead design with direct connection between end electrodes and metallized film.
- Packaging: Polyester tape wrapping with epoxy resin-sealed ends for moisture and vibration resistance.
- Dimensions: Cylindrical diameter typically 5.5~20mm, length 14~58mm (varies by model).
V. Product Parameters (Table)
Parameter |
MKP (Example: MKP1839) |
MPT (Example: Fcap-MPT-01) |
Capacitance Range |
47pF~22μF |
0.001μF~10μF |
Voltage Range |
160V~630V DC/AC |
100V~630V DC/AC |
Tolerance |
±1%, ±2% (E96 series available) |
±5%, ±10% |
Temperature Range |
-55℃ to +105℃ |
-40℃ to +105℃ |
ESR |
Extremely Low (<1Ω) |
Low (varies by model) |
Pulse Handling |
High |
High |
VI. Application Fields
- Power Electronics: Switch-mode power supplies, high-voltage filtering, thyristor protection.
- Consumer Electronics: Audio equipment (power amplifiers, crossovers), TVs (S-correction, flyback circuits).
- Industrial Control: Motor drives, electronic ballasts, welding machines.
- New Energy: Solar inverters, energy storage systems.
Note: Specific parameters are subject to the manufacturer’s datasheet. Variations may exist between models.