UHE1E332MHD

The UHE1E332MHD is a miniature, radial-lead aluminum electrolytic capacitor in Nichicon’s UHE series designed for high-reliability, general-purpose applications. It combines a 3.3 mF capacitance at 25 V with low impedance and elevated ripple-current capability to support power filtering and bulk-energy requirements in a compact can package.

Key value propositions include low impedance (50 mΩ), robust ripple-current handling across low and high frequencies, and long-term endurance rated for 10,000 hours at 105°C, enabling dependable operation in designs that require sustained thermal and electrical performance.

Key Features

• Capacitance & Voltage: 3.3 mF (3300 µF) nominal capacitance at a rated voltage of 25 V, with tolerance ±20% for predictable energy storage.
• Low Impedance: Specified impedance of 50 mΩ reduces voltage drop under load and supports stable power delivery in high-current sections.
• Ripple Current Performance: Low-frequency ripple current 2.76 A (120 Hz) and high-frequency ripple current 3.45 A (10 kHz) for effective filtering across frequency ranges.
• Frequency & Loss Characteristics: tanδ (DF) = 0.18 measured at 20°C, 120 Hz, providing a quantified dissipation factor for design margin calculations.
• Leakage Current: Leakage current 825 µA (measured condition consistent with datasheet formula 0.01CV), useful for standby and hold-up energy budgeting.
• High Reliability & Lifetime: Endurance rated 10,000 hours at 105°C under DC bias plus rated ripple current for long-term reliability in elevated-temperature environments.
• Mechanical & Package: Miniature radial can, size φ16 × 30.5 mm (L: 3.05 × D: 1.6 cm), lead spacing 7.5 mm (±0.5 mm), and radial-lead mounting for through-hole assemblies.
• Availability & Packaging: Mass production status with bulk (no terminal forming) and bag packing options to suit production and prototyping workflows.
• Regulatory: RoHS compliant.

Typical Applications

• General-purpose power filtering: Bulk energy storage and smoothing in power-supply rails where 3300 µF at 25 V is required.
• DC-DC converter support: Input/output decoupling and ripple suppression in converter modules that demand low impedance and elevated ripple-current handling.
• Hold-up and backup circuits: Short-term energy storage and voltage stabilization where measured leakage current and capacitance define hold-up time.

Unique Advantages

• Measured low impedance: 50 mΩ impedance helps reduce voltage sag and improve transient response in power delivery networks.
• Broad ripple-current capability: Specified ripple currents at both 120 Hz and 10 kHz address filtering needs across mains and switching frequencies.
• Long elevated-temperature life: 10,000-hour endurance at 105°C enables designs intended for sustained operation in warm environments.
• Compact radial can: φ16 × 30.5 mm form factor with 7.5 mm lead spacing delivers significant capacitance in a small footprint for through-hole assemblies.
• Predictable electrical losses: tanδ specified at measurement conditions (20°C, 120 Hz) aids in thermal and efficiency calculations during design.
• Production-ready supply: Mass production status and standard packaging options simplify procurement and assembly planning.

Why Choose UHE1E332MHD?

UHE1E332MHD positions itself as a compact, reliable aluminum electrolytic solution for general-purpose power applications that require 3.3 mF at 25 V with low impedance and defined ripple-current capability. Its combination of quantified electrical characteristics (impedance, tanδ, leakage current) and a 10,000-hour endurance rating at 105°C makes it suitable for designers prioritizing predictable long-term performance.

This part is appropriate for engineers building power-supply filtering, energy-hold-up, and decoupling stages where through-hole radial mounting, a small can size, and clear, measured specifications support straightforward BOM decisions and thermal/electrical validation.

To request a quote or submit a procurement inquiry for UHE1E332MHD, please provide your required quantity and delivery timeline and our team will respond with pricing and lead-time information.