UPJ1K121MPD

The UPJ1K121MPD is a radial-lead aluminum electrolytic capacitor offering 120 µF capacitance at a rated voltage of 80 V. It is part of Nichicon’s UPJ series designed for low impedance and reliable performance in power applications.

Built for general-purpose power filtering and energy storage, this φ10 × 30.5 mm radial can withstand extended operation up to 105°C and delivers measurable ripple-current handling for both low- and high-frequency power stages.

Key Features

• Electrical Rating — 120 µF nominal capacitance with a rated voltage of 80 V and capacitance tolerance of -20% to +20% at 20°C, 120 Hz.
• Low Loss (tan δ) — Tangent of loss angle (tan δ) 0.08 measured at 20°C, 120 Hz (80 V), supporting stable performance in AC ripple environments.
• Ripple Current Capability — Rated low-frequency ripple current of 215.18 mA at 120 Hz and high-frequency ripple current of 406 mA at 200 kHz, enabling effective smoothing in switching power stages.
• Leakage Current — Specified leakage current of 288 µA after voltage application, suitable for typical power-filtering requirements.
• High Temperature Endurance — Load-life endurance specified for 5000 hours at 105°C for the φ10 case, supporting long-term operation under elevated temperature stress.
• Robust Temperature Range — Operating range from -55°C to +105°C for broad environmental tolerance.
• Radial Lead, Compact Can — φ10 mm diameter with 30.5 mm length and 5 mm lead spacing (±0.5 mm) for through-hole mounting and compact board placement.
• RoHS Compliant & Packaging — RoHS-compliant construction; available in bulk (no terminal forming) or bag packing for ease of procurement and assembly.

Typical Applications

• Switching Power Supplies — Provides low-impedance filtering and energy buffering for primary and secondary rails in switching regulators.
• DC–DC Converters — Useful for input/output decoupling and ripple suppression in modular converter designs.
• General Power Filtering — Suitable for smoothing and hold-up in general-purpose power assemblies across industrial and consumer electronics.

Unique Advantages

• Designed for Low Impedance: Series-level low-impedance characteristics paired with a low tan δ (0.08) reduce voltage ripple and heat generation under AC stress.
• High-Temperature Reliability: 5000-hour endurance at 105°C for the φ10 case delivers proven long-term stability in hot operating environments.
• Dual-Frequency Ripple Performance: Explicit ripple-current ratings at 120 Hz and 200 kHz give clear guidance for both mains-frequency and high-frequency switching applications.
• Compact Through-Hole Package: φ10 × 30.5 mm radial can with 5 mm lead spacing offers a compact footprint for space-constrained power boards while retaining through-hole robustness.
• Procurement Flexibility: Available in bulk or bag packing to match production needs and handling preferences.
• Regulatory Compliance: RoHS-compliant construction supports regulatory requirements for many markets and products.

Why Choose UPJ1K121MPD?

The UPJ1K121MPD positions itself as a reliable, general-purpose electrolytic solution for designers needing 120 µF at 80 V in a compact radial package. It combines series-level low-impedance behavior, defined ripple-current capability at both low and high frequencies, and extended 105°C endurance to support sustained performance in power-conversion and filtering roles.

This part is well suited for engineers and procurement teams building switching supplies, DC–DC converters, and general power subsystems that require clear electrical specifications, compact through-hole mounting, and long-term thermal endurance from a RoHS-compliant component.

Request a quote or contact sales for availability, lead times, and volume pricing for UPJ1K121MPD.