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The core adopts high-quality metalized polypropylene film (MKP) dielectric, which is made through precise non inductive winding process, minimizing parasitic inductance and high-frequency losses from a physical structure perspective, laying a solid foundation for efficient absorption of high-frequency interference.
The electrode is treated with a special gold spraying process, which enhances the conductivity uniformity and current carrying capacity of the electrode. Combined with the all-round encapsulation of Mylar tape and flame-retardant epoxy resin, a sturdy and sealed integrated structure is formed, which has excellent insulation, moisture resistance, earthquake resistance and flame retardant (UL94 V-0 level) performance, and can operate stably in complex and harsh industrial environments.
In terms of electrical performance, its stray inductance is extremely low, and it has excellent high-frequency response characteristics and high dv/dt (voltage change rate) tolerance. It can instantly and effectively absorb the voltage spikes and high-frequency oscillations generated by power switching devices (such as IGBT) when turned off, thereby significantly reducing switching stress and losses.
Adopting an axial encapsulated appearance design, it has high mechanical strength, stable and convenient installation, making it easy to achieve high-density layout on compact circuit boards. At the same time, it has good heat dissipation characteristics, ensuring low temperature rise and long service life under continuous high ripple current conditions.
| Reference | GB/T17702, IEC61071 |
| Capacitance | 1 ~ 20 µF |
| Capacitance Tol. | ±5% (J), ±10% (K) |
| Voltage | 200V.AC ~ 1000V.AC |
| UT-T | 1.5Un / 60s |
| Over Voltage | 1.1Un (8h/24h) 1.15Un (30min/24h) 1.2Un (5min/24h) 1.3Un (1min/24h) |
| tg δ | tg δ ≤ 0.0020 (100Hz) |
| Ri × Cn | ≥ 30,000 s (25°C±5°C, 100V DC, 60s) |
| dv/dt | > 50 V/µs |
| Climatic Category | 40/85/21 |
| Operating Temp. | -40°C ~ +85°C (θ h.s ≤ 85°C) |
| Lead Methods | Insert, copper nut, copper bolt |
| Max. Altitude | < 4000 m |
| Lifetime Expectancy | 30,000 h (θ h.s ≤ 70°C) |
| Encapsulation | Mylar tape/plastic shell, epoxy resin encapsulation |
MKPH-SB film capacitors are widely used in various IGBT/MOSFET based power conversion systems as key absorption protection components.
Typical application scenarios include:
DC link side absorption circuit for photovoltaic inverters and wind power inverters;
IGBT turn off voltage spike absorption in frequency converters and servo drives;
Power switch tube protection for UPS and high-frequency switching power supply;
Resonant circuit buffering between welding machine and induction heating power supply;
The excellent high-frequency absorption capability of MKPH-SB film capacitors can effectively suppress electromagnetic interference, improve system efficiency and reliability, and is an ideal choice for stable and efficient operation of mid to high end power electronic equipment
Strictly control the production process
Our service tenet:Creating good products and wholeheartedly serving customers
Experienced:Years of focus on the capacitor industry, trustworthy
Years of brand:Years old brand, deeply trusted by new and old customers, reliable quality
On-demand customization:Complete specifications, customizable according to customer needs
Quality Assurance:Mature technology ensures quality control of every product
The company and its products have comprehensive international certifications, from ISO9001 and TS16949 quality management systems to UL, VDE, CQC and other multinational safety certifications. All products meet global environmental standards such as RoHS and REACH
The shipping methods include DHL, UPS, TNT, FedEx and other courier services, and you can also choose air or sea freight according to your requirements
Xiaoxiong, Deerma, Meishile, Dongling Weili, Yasile, Lianrui, Jeweisi, Yingke, Yuelong, Tuohao
Q: What payment terms do you accept?
A: We accept T/T, L/C, and flexible terms based on mutual agreement.
Q: Do you offer technical support and customization?
A: Yes, we provide capacitor selection, parameter customization, and application guidance based on your circuit requirements.
Q: How do you ensure product stability in high-temperature/humidity environments?
A: We use metallized polypropylene film, flame-retardant epoxy potting, and aluminum casing, ensuring stable operation from -40℃ to 105℃.
Q: Do you provide samples? How is shipping handled?
A: Free samples are available for qualified clients, with shipping costs borne by the client. Sample shipping fees can be deducted from future orders.
Address
C3 2 -4 81 Xijiao Road, Ronggui Sub-district, Foshan City, 2-4/F, Building C3, Zhongjian Chuangkeyuan, China
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