UPJ1A121MED

The UPJ1A121MED is a polarized aluminum electrolytic capacitor in a compact radial-lead can designed for general-purpose power applications. It delivers 120 µF capacitance at a 10 V rating with a low-loss construction optimized for use in switching power supplies and board-level power filtering.

Its small φ6.3 × 11 mm package, radial-lead termination and RoHS compliance make it suitable for space-constrained through-hole designs where stable capacitance, controlled dissipation factor and elevated-temperature operation to 105°C are required.

Key Features

• Electrical Performance: 120 µF capacitance at 10 V with ±20% tolerance; specified tanδ (DF) of 0.19 measured at 20°C, 120 Hz for predictable AC loss characteristics.
• Ripple Handling: Low-frequency ripple current 84.8 mA (120 Hz) and high-frequency ripple current 160 mA (200 kHz) to support decoupling and smoothing in switching regulator circuits.
• Leakage Control: Specified leakage current of 36 µA, suitable for power-rail applications where low standby bleed is important.
• Thermal and Endurance Rating: Operating range −55°C to +105°C with a life/endurance rating of 2000 hours at 105°C for sustained elevated-temperature operation.
• Mechanical and Mounting: Radial lead can with body diameter φ6.3 mm and length 11 mm (height seated max 11 mm), 2.5 mm lead spacing (±0.5 mm) for reliable through-hole assembly.
• Packaging and Compliance: Available in bulk (no terminal forming) or bag packing; RoHS compliant for regulatory compatibility.

Typical Applications

• Switching Power Supplies: Low-impedance construction and specified ripple ratings make it suitable for output filtering and decoupling in switching regulators.
• DC-DC Converters: Compact radial package and 10 V rating fit board-level converter outputs requiring stable capacitance and low DF.
• General Power Filtering: Through-hole radial format works well for bulk decoupling, smoothing and local energy storage on control and power boards.

Unique Advantages

• Compact, space-saving package: φ6.3 × 11 mm can provides significant capacitance in a small footprint for dense PCB layouts.
• Measured dissipation factor: tanδ of 0.19 (20°C, 120 Hz) gives designers a clear loss metric to calculate heating and stability in AC environments.
• Designed for ripple load: Specified LF and HF ripple currents support both mains-frequency and switching-frequency stress conditions.
• Wide operating temperature: −55°C to +105°C rating supports designs exposed to elevated ambient temperatures.
• Through-hole serviceability: Radial lead package eases prototyping, rework and repair compared with surface-mount-only options.
• Regulatory readiness: RoHS compliance addresses common environmental and procurement requirements.

Why Choose UPJ1A121MED?

UPJ1A121MED combines a compact radial package with defined electrical characteristics—120 µF at 10 V, controlled dissipation factor, specified leakage and ripple ratings—to deliver reliable power decoupling in switching supplies and general-purpose power rails. Its −55°C to +105°C operating range and 2000-hour endurance at 105°C make it a practical choice for designs that demand stable performance under thermal stress.

This capacitor is well suited for engineers and procurement teams specifying through-hole components for board-level power filtering, regulator outputs and other applications where compact size, clear electrical specifications and RoHS compliance are required.

If you would like pricing or availability information, request a quote or submit a procurement inquiry and our team will respond with product and ordering details.