UPJ2A121MHD

The UPJ2A121MHD from Nichicon is a radial-lead aluminum electrolytic capacitor in the UPJ series designed for low-impedance, general-purpose power applications. With a 120 µF capacitance at a 100 V rated voltage and a compact φ12.5×25 mm can, it targets switching power supplies and other electronic equipment that require stable bulk capacitance and reliable long-term performance.

Key value propositions include a wide operating temperature range, extended load life at elevated temperature, and measurable ripple-handling capability—attributes that support robust power smoothing and decoupling in through-hole designs.

Key Features

• Capacitance & Voltage — 120 µF rated capacitance at 100 V, ±20% tolerance for predictable energy storage in DC power circuits.
• Low Loss — Tangent of loss angle (tan δ) specified at 0.08 (for 63–100 V range), indicating controlled dissipation for improved efficiency under AC ripple.
• Leakage Current — Specified leakage current of 360 µA, measured after voltage application, to help characterize standby and quiescent behavior.
• High Temperature Endurance — 5000 hours load life at +105°C, demonstrating longevity under elevated operating conditions.
• Ripple Current Capability — Defined ripple ratings of 275.1 mA at 105 Hz and 519 mA at 200 kHz to support switching regulator and filter applications.
• Robust Environmental Range — Operating temperature range from –55°C to +105°C for use across a broad span of ambient conditions.
• Through‑Hole Radial Lead Package — φ12.5 mm diameter can, 25 mm length, 5 mm lead spacing and radial lead mounting for conventional PCB assembly and prototyping.
• RoHS Compliant — Conforms to RoHS directive requirements.

Typical Applications

• Switching Power Supplies — Low-impedance construction and defined ripple current values make it suitable for output smoothing and bulk decoupling in switching regulators.
• General-Purpose Power Filtering — Provides bulk capacitance and noise attenuation for a variety of electronic equipment that requires reliable energy storage.
• Industrial Control Electronics — Wide temperature range and extended load life support use in control and power circuitry exposed to elevated temperatures.

Unique Advantages

• Long High-Temperature Life: 5000 hours at +105°C supports durable operation in thermally demanding applications.
• Measurable Ripple Handling: Published ripple current values at both low and high frequencies (275.1 mA at 105 Hz; 519 mA at 200 kHz) allow designers to size capacitors against actual regulator ripple profiles.
• Low Dissipation: tan δ of 0.08 (63–100 V range) reduces losses under AC excitation, improving overall system efficiency.
• High Voltage Capability: 100 V rating enables use on higher-voltage rails without series stacking.
• Through-Hole Robustness: Radial lead, can-style packaging with 5 mm lead spacing simplifies mounting for through-hole PCB designs and prototyping.
• Regulatory Compliance: RoHS compliance aligns with common environmental requirements.

Why Choose UPJ2A121MHD?

UPJ2A121MHD combines a high 100 V rating, moderate bulk capacitance (120 µF), and engineered low loss to address power smoothing and decoupling needs where reliability at elevated temperature is required. Its 5000-hour endurance at +105°C and specified ripple current characteristics provide quantifiable parameters for designers to evaluate lifetime and thermal/ripple stress in switching power supplies and general-purpose power circuitry.

This part is well suited for engineers and procurement teams specifying through-hole capacitors for industrial and electronic equipment designs that demand predictable performance, measurable ripple tolerance, and long-term thermal endurance backed by Nichicon's UPJ series specifications.

If you would like a quote or need additional purchasing information for UPJ2A121MHD, please submit a request or contact sales to discuss availability, lead times, and volume pricing.