UPJ1A122MPD

The UPJ1A122MPD is a Nichicon UPJ series aluminum electrolytic capacitor specified at 1.2 mF (1200 µF) and 10 V with radial leads. It is a low-impedance, polarized radial-can capacitor designed for general-purpose power applications and for use in switching power supplies.

Key value propositions include elevated temperature endurance and high ripple-current capability—supporting demanding power-filtering roles with an operating range from -55 °C to +105 °C and RoHS compliance for regulated designs.

Key Features

• Capacitance & Voltage: 1.2 mF (1200 µF) rated at 10 V with a tolerance of ±20% (120 Hz, 20 °C).
• Low Impedance Design: Engineered for low impedance suitable for switching power supplies, with specified ripple current capability at multiple frequencies.
• Ripple Current Performance: Rated ripple current of 918.4 mA at 120 Hz and 1.12 A at 200 kHz for effective smoothing under AC ripple conditions.
• Temperature & Lifetime: Operating temperature range -55 °C to +105 °C and load-life endurance of 5000 hours at 105 °C (3000 hours for specified smaller case sizes).
• Packaging & Mounting: Radial lead, radial-can package with 5 mm lead spacing and physical size L: 2.5 × D: 1 cm; polarized construction for DC applications.
• Leakage & Loss Characteristics: Series leakage current specification: after 1 minute at 20 °C, leakage is not more than 0.03CV (µA); tangent of loss angle (tan δ) for 10 V is specified in the series data.
• Regulatory Compliance: RoHS compliant according to the series documentation.

Typical Applications

• Switching Power Supplies — Provides low-impedance bulk capacitance and high ripple-current handling for smoothing and stabilization of switching rails.
• General-Purpose Power Electronics — Suited for general-purpose DC filtering and energy storage in consumer and industrial power circuits.
• High-Frequency Power Filtering — Rated ripple current at 200 kHz supports applications with elevated switching frequencies that require robust ripple handling.

Unique Advantages

• Low-impedance performance: Specified ripple-current ratings at both low and high frequencies deliver effective AC ripple suppression where power integrity matters.
• High-temperature endurance: 5000 hours at 105 °C (with series-noted shorter life for some smaller cases) supports long-term reliability in elevated-temperature environments.
• Compact radial-can package: Small footprint (L: 2.5 × D: 1 cm) with 5 mm lead spacing simplifies placement in dense power assemblies.
• Polarized design for DC applications: Radial lead polarized construction aligns with common DC filtering and bulk-storage topologies.
• Measured leakage and dissipation specs: Series leakage current and tan δ limits provide predictable behavior for margin calculations in power designs.
• RoHS compliant: Meets RoHS requirements for integration into regulated product lines.

Why Choose UPJ1A122MPD?

UPJ1A122MPD is positioned for engineers who need a compact, radial-lead electrolytic capacitor with proven endurance at elevated temperatures and measurable ripple-current capability. As part of the Nichicon UPJ series, it combines series-level specifications—low impedance, defined leakage limits, and a long-life rating—that help simplify component selection for switching power supplies and general-purpose power designs.

This capacitor is suitable for designs demanding reliable DC bulk capacitance and robust ripple handling over extended operating periods. Its combination of specified temperature range, ripple ratings, and RoHS compliance makes it a practical choice for procurement and system-level reliability planning.

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