Technical Deep Dive | How do YMIN’s anti-vibration capacitors solve the vibration challenges of low-altitude flying car electronic control systems?

Technical Deep Dive | How do YMIN’s anti-vibration capacitors solve the vibration challenges of low-altitude flying car electronic control systems?

Introduction

Low-altitude flying car electronic control systems often fail due to high-frequency vibration during flight, resulting in abnormal control system response, degraded filtering performance, and even flight accidents. Traditional capacitors have insufficient vibration resistance (5-10g), making them unable to meet reliability requirements in extreme environments.

YMIN’s Solution

With the prevalence of SiC devices and increased switching frequencies, capacitors in OBC modules must withstand higher ripple currents and thermal stresses. Ordinary aluminum electrolytic capacitors are prone to overheating and have a short lifespan. Achieving high capacitance, high withstand voltage, low ESR, and long life in a compact package has become a core pain point in OBC design.

- Root Cause Technical Analysis -

In a vibrating environment, the internal structure of the capacitor is prone to mechanical fatigue, leading to electrolyte leakage, solder joint cracking, capacitance drift, and increased ESR. These issues further increase power supply noise and voltage ripple, impacting the proper operation of key components such as the MCU and sensors.

- YMIN Solutions and Process Advantages -

YMIN’s liquid-type, anti-vibration baseplate chip aluminum electrolytic capacitors enhance reliability through the following designs:

Strengthened anti-vibration structure: A reinforced base and optimized internal materials provide shock resistance of 10-30g;

Liquid electrolyte system: Provides more stable electrical performance and heat dissipation;

High ripple resistance and low leakage current: Suitable for high-frequency switching power supply scenarios, improving system efficiency.

Reliability Data Verification & Selection Recommendations

Tests show that after 500 hours of operation in a 30g vibration environment, the capacitor’s capacitance change rate is less than 5%, and its ESR remains stable. System response delay during vibration testing is significantly reduced, and flight control accuracy is improved, particularly in inclement weather.

Operating Temperature: -55°C to +125°C (Capacitance degradation less than -10% at -40°C, ensuring stable energy storage and filtering performance).

Lifespan: 2000 hours

Vibration Resistance: 30G

Impedance: ≤0.25Ω @100kHz

Ripple Current: Up to 400mA @100kHz under 125°C high-temperature test conditions

- Application Scenario and Recommended Models -

Widely used in low-altitude flying vehicle electronic control, OBC capacitor solutions, and in-vehicle power management.

Recommended Model: VKL(T) 50V, 220μF, 10*10-20%-+20%, Coated Aluminum Housing, 2K, Vibration-Resistant Seat Plate, CG

This model has been used in real-world applications.

Conclusion

YMIN Capacitors, with its solid technical expertise and rigorous data verification, provides high reliability for high-end automotive electronic systems. For capacitor application challenges, contact YMIN—we are willing to work with our engineers to overcome extreme environments.