The EWH1EM472L25OT from AISHI is a WH-series radial leaded aluminum electrolytic capacitor with a nominal capacitance of 4700μF, a capacitance tolerance of ±20%, and a rated voltage of 25V DC. It is suitable for general-purpose filtering, energy storage, bypassing, and voltage-smoothing circuits.
The capacitor has a 32V DC surge-voltage rating and supports an operating-temperature range from −40°C to +105°C. Its specified endurance is 2000 hours at 105°C under the rated voltage and defined test conditions.
The EWH1EM472L25OT provides a maximum ripple-current rating of 1680mArms at 105°C and 120Hz. Its maximum dissipation factor is 0.22 at 120Hz, while maximum leakage current is 1175μA after two minutes at the rated voltage. Temperature, ripple current, applied voltage, and thermal conditions should be considered when estimating service life.
The component uses a radial through-hole construction with a body size of 16mm in diameter and 25mm in length. Lead spacing is 7.5mm, and lead diameter is approximately 0.8mm. Correct polarity must be observed during installation.
Key Specifications:
- Manufacturer: AISHI
- Manufacturer Part Number: EWH1EM472L25OT
- Product Series: WH
- Component Type: Radial Aluminum Electrolytic Capacitor
- Nominal Capacitance: 4700μF
- Capacitance Tolerance: ±20%
- Rated Voltage: 25V DC
- Surge Voltage: 32V DC
- Operating Temperature: −40°C to +105°C
- Endurance: 2000 Hours at 105°C
- Maximum Ripple Current: 1680mArms at 105°C and 120Hz
- Maximum Dissipation Factor: 0.22 at 120Hz
- Maximum Leakage Current: 1175μA after Two Minutes
- Body Dimensions: Ø16 × 25mm
- Lead Spacing: 7.5mm
- Lead Diameter: Approximately 0.8mm
- Mounting Type: Radial Through-Hole
Typical Applications:
Suitable for switching power supplies, adapters, power modules, industrial controls, audio equipment, household appliances, and general electronic products requiring DC filtering, energy storage, ripple reduction, or output smoothing.








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