| RUOFEI Brand CBB20 1.8μF 250V AC Axial MKP Film Capacitor |
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2025-03-22 14:40:19 |
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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.
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