UPJ1A103MHD

The UPJ1A103MHD is a Nichicon UPJ series miniature aluminum electrolytic capacitor in a radial-lead can. It provides 10,000 µF capacitance at a 10 V rating with a polarized radial-lead package intended for power-filtering roles.

Designed for low impedance and high reliability, this part is ideally suited for switching power supplies and general-purpose power rails that require high ripple-handling, extended endurance at elevated temperature, and a compact radial package.

Key Features

• Capacitance & Tolerance — 10,000 µF (10 mF) with capacitance tolerance of −20% to +20% (specified at 120 Hz, 20°C).
• Rated Voltage — 10 V DC nominal working voltage for bulk energy storage and smoothing on low-voltage rails.
• Low Impedance Construction — UPJ series low-impedance design optimized for switching power supplies and high-current ripple environments.
• High Ripple Current Capacity — Low-frequency ripple current 2.457 A at 120 Hz and high-frequency ripple current 2.73 A at 200 kHz, enabling effective filtering across switching frequencies.
• Loss Characteristics — Specified dissipation factor (tanδ) of 0.37 measured at 20°C, 120 Hz, 10 V for this part number.
• Leakage Current — Leakage current specified at 3000 µA after one minute at rated voltage and 20°C.
• High Temperature Endurance — Rated life of 5000 hours at 105°C, supporting long-term operation in thermally demanding applications.
• Mechanical & Mounting — Compact can size φ18 × 40 mm length, radial lead mounting with 7.5 mm lead spacing (tolerance ±0.5 mm) for through-hole PCB designs.
• Compliance & Packaging — RoHS compliant; available in bulk (no terminal forming) and bag packing.

Typical Applications

• Switching Power Supplies — Bulk smoothing and output filtering where low impedance and high ripple current capability are required.
• DC–DC Converters — Energy storage and decoupling on low-voltage rails to support transient load demands.
• Industrial Power Modules — Long-life bulk capacitance for power conditioning in industrial control and power electronics.
• Consumer and Communication Equipment — Bulk filtering for board-level power distribution in compact, through-hole applications.

Unique Advantages

• High ripple tolerance: 2.457 A (120 Hz) and 2.73 A (200 kHz) ripple ratings reduce voltage excursion and improve regulator stability under switching loads.
• Extended high-temperature life: 5000 hours at 105°C gives prolonged service life in hot operating environments, lowering replacement frequency.
• Low-impedance UPJ design: Optimized for switching supplies to minimize ESR-related losses and improve transient response.
• Compact radial can: φ18 × 40 mm footprint with 7.5 mm lead spacing offers a space-efficient through-hole solution for PCB power sections.
• Clear specification set: Measured tanδ, leakage, and ripple-current values enable straightforward thermal and lifetime budgeting in design.
• RoHS compliant: Meets environmental compliance requirements for modern electronics production.

Why Choose UPJ1A103MHD?

UPJ1A103MHD combines high bulk capacitance with a low-impedance construction and defined ripple-current capability, making it a practical choice for engineers designing switching power supplies and DC–DC converters where stable bulk storage and thermal endurance matter. Its 5000-hour rating at 105°C and clear electrical specifications simplify reliability planning for medium- to long-life applications.

This radial-lead, polarized capacitor is well suited to PCB power rails and power modules that require compact through-hole mounting, robust ripple handling, and predictable end-of-life behavior backed by the Nichicon UPJ series design intent.

Request a quote or submit an inquiry for UPJ1A103MHD to receive pricing, availability, and lead-time information for your next design.