ULD1E330MDD

The ULD1E330MDD is a radial lead aluminum electrolytic capacitor offering 33 µF capacitance at a 25 V rating in a compact φ5×11 mm can. Designed as part of Nichicon's ULD series, it combines a small footprint with long-life endurance for through-hole power-supply and general-purpose decoupling applications.

Key value is delivered through a balance of electrical performance—low leakage and measurable ripple-current capability—along with extended operating life at elevated temperature for reliable operation in sustained duty environments.

Key Features

• Capacitance & Voltage — 33 µF capacitance with a rated voltage of 25 V and capacitance tolerance of -20% to 20% for predictable bulk storage on 25 V rails.
• Electrical Loss & Leakage — Specified tanδ (DF) of 0.3 measured at 20°C, 120 Hz, and a leakage current of 8.25 µA to help minimize parasitic losses on DC rails.
• Ripple Current Capability — Low-frequency ripple current 71.5 mA at 120 Hz and high-frequency ripple current 130 mA at 100 kHz to support smoothing and decoupling in power-supply circuits.
• Long-Life Endurance — Rated for 10000 hours at +105°C under the specified load-life conditions, reflecting the ULD series’ long-life design focus.
• Mechanical & Mounting — Radial lead, polarized can with φ5×11 mm package size, 2.0 mm lead spacing (±0.5 mm), and bulk or bag packing options for through-hole assembly and manual or automated handling.
• Operating Range & Compliance — Operating temperature range -40°C to +105°C and RoHS compliant for regulatory alignment.
• Product Status — The part is listed as End Of Life; evaluate available inventory and alternatives when planning production usage.

Typical Applications

• LED Lighting Power Supplies — Suitable for smoothing and bulk decoupling on 25 V rails in LED driver circuits, leveraging the ULD series’ long-life design.
• Through‑Hole Power Filtering — Compact radial can and 2.0 mm lead spacing make it appropriate for through-hole boards needing local energy storage and ripple suppression.
• General Purpose Electronics — Used where a small, polarized electrolytic is required for general power-supply decoupling and energy storage within the specified temperature and life parameters.

Unique Advantages

• Compact, through‑hole form factor: φ5×11 mm radial can provides space-efficient bulk capacitance for constrained PCB real estate.
• Designed for sustained operation: 10000 hours at +105°C endurance supports long-term reliability in continuously powered applications.
• Measurable ripple handling: Defined low- and high-frequency ripple current ratings enable designers to evaluate thermal and lifetime performance under real operating conditions.
• Low leakage for power efficiency: 8.25 µA leakage improves stand-by and low-current performance compared with higher-leakage alternatives.
• Regulatory alignment: RoHS compliance ensures compatibility with common environmental requirements for electronic assemblies.

Why Choose ULD1E330MDD?

ULD1E330MDD positions itself as a compact, long-life aluminum electrolytic for designers needing a 33 µF, 25 V polarized capacitor in a radial, through-hole format. Its combination of defined ripple-current capability, low leakage, and a wide operating temperature range makes it suitable for continuous-duty power-supply decoupling and general-purpose circuits within its endurance rating.

This part is appropriate for engineering and procurement teams targeting durable, RoHS-compliant components for small-form-factor power boards and LED driver designs. Note the product’s End Of Life status when planning long‑term production, and consider checking inventory or sourcing alternatives as needed.

Request a quote or submit your procurement inquiry for ULD1E330MDD with quantity and delivery requirements to receive pricing and availability information.