UCS2D121MND9

The UCS2D121MND9 is a miniature, high-reliability aluminum electrolytic capacitor in a radial-lead can. It provides 120 µF capacitance at a 200 V rating with polarized construction, intended for general-purpose power electronics where elevated ripple handling and long life at high temperature are required.

Designed for power supply and ballast applications, the UCS2D121MND9 combines high ripple-current capability with an extended rated lifetime of 10,000 hours at 105°C, a wide operating temperature range of −40°C to +105°C, and compact φ10 × 40 mm sizing with 5 mm lead spacing.

Key Features

• Capacitance and Voltage — 120 µF capacitance rated at 200 V, with capacitance tolerance of ±20% (−20% ~ 20%).
• High Ripple Current — Low-frequency ripple current of 680 mA at 120 Hz and high-frequency ripple capability of 1.36 A at 100 kHz, suitable for demanding power filtering conditions.
• Long Life / High Reliability — Rated endurance of 10,000 hours at +105°C under specified DC bias and ripple conditions, supporting extended operational life in thermal-stressed environments.
• Thermal Range — Operating temperature −40°C to +105°C for broad environmental tolerance.
• Loss Characteristics — Tangent of loss angle (tan δ) 0.20 measured at 20°C, 120 Hz for the 200 V rating.
• Leakage Current — Specified leakage current of 1060 µA (measured after 1 minute at 20°C under rated voltage for this part).
• Mechanical and Mounting — Radial lead, polarized can with dimensions φ10 × 40 mm and 5.0 mm lead spacing (±0.5 mm). Packaging available in bulk (no terminal forming) or bag packing.
• Regulatory — RoHS compliant.

Typical Applications

• Power Supplies — Bulk and output filtering where 200 V rating and elevated ripple handling reduce voltage ripple and improve regulation.
• Ballasts — Suited for ballast circuits that require reliable capacitance and long life at elevated temperatures.
• General-Purpose Power Electronics — Through-hole radial mounting for assemblies needing a compact, polarized electrolytic with extended endurance and RoHS compliance.

Unique Advantages

• Proven long-life performance — 10,000-hour endurance at 105°C provides predictable lifespan for thermal-stressed applications.
• High-frequency ripple capability — 1.36 A ripple at 100 kHz supports modern switching power stages and high-speed filtering needs.
• Compact footprint — φ10 × 40 mm can size delivers substantial capacitance and voltage rating in a small through-hole package.
• Wide operating temperature — −40°C to +105°C enables use across a broad range of environmental conditions.
• Measurable electrical stability — tan δ = 0.20 (20°C, 120 Hz) and specified leakage provide clear design parameters for impedance and loss budgeting.
• RoHS compliant — Meets regulatory requirements for lead-free assemblies.

Why Choose UCS2D121MND9?

The UCS2D121MND9 balances compact size with robust electrical and thermal performance: 120 µF at 200 V with high ripple capability and a rated 10,000-hour life at 105°C. Its radial-lead package and clear electrical specifications (tan δ, leakage current, ripple current figures) make it straightforward to integrate into through-hole power-supply and ballast designs where predictable behavior at elevated temperature is a priority.

This part is well suited to engineers specifying reliable, general-purpose electrolytic capacitance for power filtering and energy-storage duties in assemblies that require RoHS compliance and documented endurance at high operating temperature.

If you would like pricing, lead-time information or a formal quote for the UCS2D121MND9, please submit a request or contact our sales team to discuss availability and ordering options.