
Product Description
The Ruofei Snap-in Electrolytic Capacitor is a high-performance aluminum electrolytic capacitor designed for industrial and power electronics applications. Featuring snap-in terminals for secure PCB mounting, it offers exceptional reliability, ultra-compact dimensions, and high capacitance density. These capacitors are optimized for demanding environments, including UPS systems, inverters, and power supplies, ensuring stable performance under high ripple current and temperature conditions.
Shape Diagram

Electrical Characteristics
Parameter |
Symbol |
Value Range / Description |
Rated Voltage |
VR |
10V to 500V DC (e.g., 35V, 63V, 400V, etc.) |
Capacitance Range |
C |
47μF to 82,000μF (e.g., 3300μF, 6800μF, 22000μF) |
Capacitance Tolerance |
ΔC/C |
±20% (at 120Hz, 20°C) |
Operating Temperature |
Topr |
-40°C to +105°C |
Load Life |
L0 |
2,000 hours at 105°C (2000-8000 hours per sub-series) |
ESR (Equivalent Series Resistance) |
ESR |
Typically ≤100mΩ (varies by capacitance/voltage) |
Ripple Current |
IR |
Up to 8.5A (at 100Hz, 85°C) |
Leakage Current |
IL |
≤0.03CV + 3μA (after 5 minutes at rated voltage) |
Mechanical Dimensions |
D×H |
Diameter: 22mm to 35mm; Height: 25mm to 90mm |
Termination Type |
- |
Snap-in (2 or 4 pins) |
Polarity Marking |
- |
Clear "+/-" indication |
Certifications |
- |
RoHS, IEC 60384-1 (model-dependent) |
Key Features:
- High ripple current capability
- Wide temperature range (-40°C to +105°C)
- Long life (2,000-8,000 hours at 105°C)
- Compact snap-in design for PCB mounting
- RoHS compliant
- Low ESR, Reduces power loss and heat generation.
Applications
- Power supplies for industrial equipment and servers.
- DC-link filtering in inverters and motor drives.
- Energy storage in UPS systems and renewable energy systems.
- Automotive on-board chargers and LED lighting.
- Medical devices and audio amplifiers.
Installation & Handling
- Polarity: Ensure correct (+/-) connection to avoid damage.
- Soldering: Use wave soldering (temperature ≤ 260°C, duration ≤ 10s).
- Storage: Keep in dry conditions (≤ 60% RH) at 5°C–35°C.
- Derating: Apply voltage derating ≥ 20% for high-temperature applications.
Additional Notes
-
For detailed datasheets, dimension drawings, or lifetime calculation tools, contact Ruofei’s technical support team.
-
Customized solutions (e.g., higher voltage ratings, extended temperature ranges) are available for OEM/ODM projects.
Product Description
The Ruofei Snap-in Electrolytic Capacitor is a high-performance aluminum electrolytic capacitor designed for industrial and power electronics applications. Featuring snap-in terminals for secure PCB mounting, it offers exceptional reliability, ultra-compact dimensions, and high capacitance density. These capacitors are optimized for demanding environments, including UPS systems, inverters, and power supplies, ensuring stable performance under high ripple current and temperature conditions.
Shape Diagram

Electrical Characteristics
Parameter |
Symbol |
Value Range / Description |
Rated Voltage |
VR |
10V to 500V DC (e.g., 35V, 63V, 400V, etc.) |
Capacitance Range |
C |
47μF to 82,000μF (e.g., 3300μF, 6800μF, 22000μF) |
Capacitance Tolerance |
ΔC/C |
±20% (at 120Hz, 20°C) |
Operating Temperature |
Topr |
-40°C to +105°C |
Load Life |
L0 |
2,000 hours at 105°C (2000-8000 hours per sub-series) |
ESR (Equivalent Series Resistance) |
ESR |
Typically ≤100mΩ (varies by capacitance/voltage) |
Ripple Current |
IR |
Up to 8.5A (at 100Hz, 85°C) |
Leakage Current |
IL |
≤0.03CV + 3μA (after 5 minutes at rated voltage) |
Mechanical Dimensions |
D×H |
Diameter: 22mm to 35mm; Height: 25mm to 90mm |
Termination Type |
- |
Snap-in (2 or 4 pins) |
Polarity Marking |
- |
Clear "+/-" indication |
Certifications |
- |
RoHS, IEC 60384-1 (model-dependent) |
Key Features:
- High ripple current capability
- Wide temperature range (-40°C to +105°C)
- Long life (2,000-8,000 hours at 105°C)
- Compact snap-in design for PCB mounting
- RoHS compliant
- Low ESR, Reduces power loss and heat generation.
Applications
- Power supplies for industrial equipment and servers.
- DC-link filtering in inverters and motor drives.
- Energy storage in UPS systems and renewable energy systems.
- Automotive on-board chargers and LED lighting.
- Medical devices and audio amplifiers.
Installation & Handling
- Polarity: Ensure correct (+/-) connection to avoid damage.
- Soldering: Use wave soldering (temperature ≤ 260°C, duration ≤ 10s).
- Storage: Keep in dry conditions (≤ 60% RH) at 5°C–35°C.
- Derating: Apply voltage derating ≥ 20% for high-temperature applications.
Additional Notes
-
For detailed datasheets, dimension drawings, or lifetime calculation tools, contact Ruofei’s technical support team.
-
Customized solutions (e.g., higher voltage ratings, extended temperature ranges) are available for OEM/ODM projects.