UPJ1H121MPD6

The UPJ1H121MPD6 is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon's UPJ series. It is a radial-lead, low-impedance capacitor designed for general-purpose electronic applications and is specifically noted for use in switching power supplies.

With a rated voltage of 50 V, capacitance of 120 µF and an endurance spec of 5000 hours at 105°C, this part delivers stable filtering and smoothing performance in compact through-hole assemblies across a wide operating temperature range.

Key Features

• Capacitance and Voltage — 120 µF nominal capacitance with a rated voltage of 50 V and a tolerance of -20% to +20% for predictable energy storage.
• Low Loss Factor — Tangent of loss angle (tan δ) specified at 0.10 under DF measurement conditions (20°C, 120 Hz), supporting efficient AC ripple handling.
• Ripple Current Capability — Rated low-frequency ripple current of 230.55 mA at 120 Hz and high-frequency ripple current of 435 mA at 200 kHz, enabling effective filtering across frequency ranges.
• Leakage Current — Specified leakage current of 180 µA, measured after 1 minute's application of rated voltage at 20°C for predictable standby behavior.
• High-Temperature Endurance — Load life of 5000 hours at 105°C (per UPJ series specification), providing long-term stability under elevated temperature stress.
• Wide Operating Temperature — Rated for -55°C to +105°C to accommodate environments with broad thermal swings.
• Compact Radial Package — Physical size φ10 × 16 mm (L: 1.6 cm, D: 1.0 cm) with 5.0 mm lead spacing (±0.5 mm) and radial-lead mounting for straightforward through-hole assembly.
• Regulatory — RoHS compliant.

Typical Applications

• Switching Power Supplies — Suited for use in switching power supply designs where low impedance and long life at elevated temperature are required.
• General-Purpose Electronic Circuits — Applicable to a wide range of general-purpose power filtering and smoothing tasks.
• Radial Through-Hole Assemblies — Designed for compact radial-lead, can-style mounting in through-hole PCB layouts.
• Environments with Wide Temperature Range — Useful in systems that operate between -55°C and +105°C, leveraging the UPJ series endurance rating.

Unique Advantages

• Low Impedance Design — Tangent of loss angle of 0.10 at 50 V supports lower losses and improved ripple attenuation under typical measurement conditions.
• High Endurance at Elevated Temperature — Specified 5000-hour load life at 105°C provides measurable longevity for sustained high-temperature operation.
• Frequency-Range Ripple Handling — Separate ripple current specs for 120 Hz (230.55 mA) and 200 kHz (435 mA) indicate capability across both low- and high-frequency filtering roles.
• Compact Form Factor — φ10 × 16 mm can with 5 mm lead spacing enables use in space-constrained through-hole designs without sacrificing capacitance.
• Predictable Leakage Behavior — Specified leakage current of 180 µA supports accurate power budgeting and low-standby applications.
• RoHS Compliance — Meets RoHS requirements for environmental and regulatory alignment.

Why Choose UPJ1H121MPD6?

UPJ1H121MPD6 combines the UPJ series' low-impedance characteristics with a compact radial-can package and a rated endurance of 5000 hours at 105°C, making it well suited to engineers designing reliable, long-life power-supply and general-purpose filtering solutions. Its specified ripple current performance at both low and high frequencies, along with controlled leakage current and a wide operating temperature range, provide clear, verifiable parameters for system-level thermal and electrical design.

This part is ideal for designs that require through-hole mounting in space-limited boards and need capacitors with defined long-term behavior under elevated temperature stress. The Nichicon UPJ series specification and RoHS compliance offer consistent performance and regulatory alignment for production deployments.

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