UPJ2A681MHD

The UPJ2A681MHD is a radial‑lead aluminum electrolytic capacitor in Nichicon’s UPJ series, providing 680 µF capacitance at a 100 V rating. Designed for low impedance and long life, it is targeted for general‑purpose power applications including switching power supplies.

Key electrical attributes include a wide operating temperature range of -55°C to 105°C, a rated endurance of 5000 hours at 105°C, and measurable ripple handling specified for both low and high frequencies—making this part suitable where stable bulk capacitance and reliable ripple performance are required.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with a rated voltage of 100 V and capacitance tolerance of ±20%.
• Low Impedance — UPJ series designation and product data indicate low impedance construction suitable for switching power supply environments.
• Ripple Current Performance — Low‑frequency ripple current of 1.299 A (120 Hz) and high‑frequency ripple current of 1.91 A (200 kHz), specified for filtering and decoupling under AC ripple conditions.
• Loss Angle / Dissipation Factor — tanδ = 0.08 measured at 20°C, 120 Hz, 100 V, supporting predictable AC loss characteristics in design calculations.
• Endurance & Temperature — Rated for 5000 hours at 105°C and specified for operation from -55°C to +105°C.
• Physical & Mounting — Radial lead, can package with dimensions φ18 × 40 mm (diameter × length), lead spacing 7.5 mm (±0.5 mm), and bulk/bag packing option (no terminal forming).
• Polarized — Polarized electrolytic capacitor for DC power applications.
• RoHS Compliant — Meets RoHS requirements as stated in the product data.

Typical Applications

• Switching Power Supplies — Bulk capacitance and low impedance behavior help stabilize output rails and reduce voltage ripple in switching regulator stages.
• Power Filtering & Energy Storage — Used for smoothing, decoupling and transient energy delivery where 100 V rating and 680 µF capacity are required.
• General Purpose Industrial Electronics — Suitable for industrial control and power conversion modules requiring reliable operation across -55°C to +105°C and extended endurance.

Unique Advantages

• High Voltage Capability: 100 V rating enables use in higher‑voltage DC systems where lower‑voltage electrolytics are unsuitable.
• Extended High‑Temperature Endurance: 5000 hours at 105°C provides predictable aging and long‑term stability for designs exposed to elevated operating temperatures.
• Measured Ripple Ratings: Specified ripple currents at both 120 Hz and 200 kHz allow designers to select this capacitor with confidence for both mains‑frequency and high‑frequency filtering tasks.
• Compact Radial Can: φ18 × 40 mm can and radial leads simplify through‑hole mounting and replacement in legacy or serviceable power assemblies.
• Predictable Loss Characteristics: A defined tanδ at measurement conditions (0.08 at 20°C, 120 Hz, 100 V) assists thermal and loss budgeting in power designs.

Why Choose UPJ2A681MHD?

UPJ2A681MHD combines a high 100 V rating with substantial 680 µF capacitance in a compact radial can, delivering low‑impedance performance intended for switching power supplies and general‑purpose power filtering. Its specified ripple currents, measured dissipation factor, and 5000‑hour endurance at 105°C make it a reliable choice for designs that require long operational life at elevated temperatures.

This part is suitable for engineers and procurement teams specifying through‑hole bulk capacitors for industrial and power conversion applications that need verifiable electrical parameters, predictable aging, and RoHS compliance.

If you would like pricing or availability, request a quote or submit an inquiry to receive lead time and ordering information for UPJ2A681MHD.