UPJ1E122MHD

The UPJ1E122MHD is a miniature, high-reliability aluminum electrolytic capacitor in a radial-lead can designed for power applications. Part of Nichicon’s UPJ series, it delivers low impedance and long load life characteristics that suit switching power supplies and general-purpose power-filtering circuits.

Key design attributes include a 1.2 mF capacitance at 25 V, a wide operating temperature range from -55°C to +105°C, and a compact φ12.5 × 25 mm package with 5 mm lead spacing—providing a balance of capacitance, ripple handling and thermal endurance for demanding power designs.

Key Features

• Capacitance & Voltage — 1.2 mF (1200 µF) rated at 25 V with a tolerance of -20% to +20% for predictable bulk energy storage and decoupling.
• Low Impedance — Designed as a low-impedance UPJ-series capacitor; specified tangent of loss angle (tan δ) is 0.14 at 20°C, 120 Hz, supporting improved transient response in power rails.
• High Ripple Current Capability — Rated low-frequency ripple current of 1.271 A at 120 Hz and high-frequency ripple current of 1.55 A at 200 kHz to manage AC stress in switching circuits.
• High Reliability Endurance — Load-life endurance rated to 5000 hours at +105°C, with defined post-endurance limits for capacitance, tan δ and leakage consistent with long-term operation.
• Leakage Current — Specified leakage current of 900 µA to characterize quiescent loss during application of rated voltage.
• Robust Temperature Range — Operates from -55°C to +105°C for use across thermally challenging environments.
• Compact Radial Package — φ12.5 mm diameter × 25 mm length aluminum can with 5 mm lead spacing and radial-lead mounting for through-hole board assemblies; lead spacing tolerance ±0.5 mm.
• Regulatory — RoHS compliant.

Typical Applications

• Switching Power Supplies — Bulk smoothing and output filtering where low impedance and high ripple capability improve regulator stability and transient response.
• Industrial Power Electronics — Energy storage and decoupling in power conversion modules that require wide operating temperature and long endurance at elevated temperature.
• Consumer and General-Purpose Electronics — Power-line filtering and bulk decoupling in mains-powered equipment and standalone devices where compact radial components are used.

Unique Advantages

• Extended Load-Life: Rated 5000 hours at +105°C, providing long-term stability for continuous-duty power applications.
• Effective Ripple Management: High specified ripple currents at both low and high frequencies reduce internal heating and support reliable operation in switching environments.
• Low-Impedance Behavior: Measured tan δ of 0.14 (20°C, 120 Hz) contributes to lower ESR/impedance performance for improved transient handling.
• Wide Thermal Capability: -55°C to +105°C operating range enables deployment across a broad set of environmental conditions.
• Space-Efficient Radial Can: φ12.5 × 25 mm form factor with 5 mm lead spacing fits dense through-hole layouts while providing 1200 µF capacitance.
• RoHS Compliance: Meets RoHS directive requirements for materials compliance.

Why Choose UPJ1E122MHD?

UPJ1E122MHD combines high capacitance density with low-impedance characteristics and long endurance, making it a practical choice for designers building switching power supplies, power conversion modules, and general-purpose power-filtering circuits. Its compact radial can, defined ripple-current ratings, and -55°C to +105°C operating range address both thermal and electrical reliability needs.

Manufactured as part of Nichicon’s UPJ series, this capacitor provides verifiable electrical parameters—capacitance, leakage, tan δ and ripple ratings—that help engineers confidently specify a component for sustained operation under load.

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