UPJ2A121MHD6

The UPJ2A121MHD6 is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon's UPJ series. It is a radial-lead, polarized capacitor designed for power applications that require low impedance and extended endurance.

With a 120 µF capacitance at 100 V, a wide operating temperature range of -55°C to 105°C, and a specified 5000-hour life at 105°C, this part is suited for general-purpose power filtering and switching power supply designs that demand dependable performance over time.

Key Features

• Electrical Performance — 120 µF nominal capacitance with ±20% tolerance, low loss tangent (tanδ = 0.08 at 20°C, 120 Hz) and specified leakage current of 360 µA.
• Voltage Rating — Rated for 100 V applications, enabling higher-voltage power filtering and energy storage uses.
• Low Impedance for Power — Designed for low impedance operation, making it suitable for switching power supply smoothing and decoupling.
• Ripple Current Capability — Specified low-frequency ripple current of 281.43 mA at 120 Hz and high-frequency ripple current of 531 mA at 200 kHz to support dynamic power conditions.
• High Reliability / Endurance — Rated for 5000 hours life at 105°C, providing extended operational longevity under elevated temperature with DC bias and ripple current applied.
• Compact Radial Package — φ16 × 15 mm can with radial leads, 7.5 mm lead spacing (±0.5 mm), offered in bulk or bag packing for manual or automated assembly flows.
• Wide Temperature Range — Operates from -55°C to 105°C to accommodate a broad set of environmental conditions.
• RoHS Compliant — Conforms to RoHS requirements for material compliance.

Typical Applications

• Switching Power Supplies — Low impedance and specified ripple current ratings make this capacitor suitable for output smoothing and input decoupling in switching regulators.
• General-Purpose Power Filtering — 100 V rating and 120 µF capacitance support bulk energy storage and power-line filtering in general-purpose electronic equipment.
• Industrial Power Modules — Extended endurance at 105°C and wide operating temperature range support use in industrial power modules requiring reliable long-term operation.

Unique Advantages

• High Voltage Capability: 100 V rating provides headroom for higher-voltage rails and reduces the need for series capacitors in some designs.
• Long Operational Life: 5000 hours at 105°C gives designers a clear endurance metric for thermal and load planning.
• Low Loss and Controlled Leakage: tanδ of 0.08 (20°C, 120 Hz) and specified leakage current (360 µA) support stable performance in precision power circuits.
• Frequency-Qualified Ripple Handling: Separate ripple current specifications at 120 Hz and 200 kHz allow designers to evaluate behavior across low- and high-frequency power conditions.
• Compact Radial Form Factor: 16 mm × 15 mm can with 7.5 mm lead spacing fits space-constrained boards while remaining compatible with through-hole assembly methods.
• Regulatory Compliance: RoHS compliance helps meet material-restriction requirements for commercial and industrial products.

Why Choose UPJ2A121MHD6?

The UPJ2A121MHD6 balances compact size, high-voltage capability, and extended endurance for power-focused designs. Its low impedance characteristics, defined ripple current specs at common test frequencies, and 5000-hour rating at 105°C make it a practical choice for engineers specifying capacitors for switching power supplies and general-purpose power filtering.

This part is targeted at designers and procurement teams who need a reliable, radial-lead electrolytic capacitor with verifiable electrical and mechanical specifications, straightforward packaging options, and RoHS conformity for commercial and industrial applications.

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