UPS2D331MRD

The UPS2D331MRD is a miniature, low‑impedance aluminum electrolytic capacitor designed for radial‑lead mounting in power applications. It delivers 330 µF capacitance at a 200 V rating and is optimized for switching power supplies and general‑purpose power filtering where compact size and reliable ripple handling are required.

Key value comes from a wide operating temperature range and a long high‑temperature lifetime, making this part suitable for designs that require sustained performance up to 105 °C while maintaining RoHS compliance.

Key Features

• Capacitance & Voltage — 330 µF nominal capacitance with a 200 V rated voltage and ±20% tolerance for stable DC bulk and filtering functions.
• Low Impedance / Ripple Handling — Specified ripple currents of 1.1 A at 120 Hz and 1.265 A at 10 kHz support effective smoothing in switching power stages.
• Wide Temperature Range — Rated for operation from −40 °C to +105 °C to cover demanding thermal environments.
• High‑Temperature Lifetime — 3000 hours at 105 °C, enabling predictable end‑use endurance under sustained elevated temperatures.
• Radial Can Package — Compact radial can design with 1.0 cm lead spacing and a size of L: 4 × D: 2.2 cm for through‑hole PCB mounting.
• Polarized, General‑Purpose — Polarized aluminum electrolytic suitable for general power‑supply and energy‑storage uses.
• RoHS Compliant — Meets RoHS directive requirements (2011/65/EU, (EU)2015/863) for restricted substances.

Typical Applications

• Switching Power Supplies — Bulk filtering and smoothing for switching regulators and DC‑DC converter stages where compact, high‑voltage capacitors are needed.
• Power Filtering in Industrial Electronics — Decoupling and energy storage in control modules and power assemblies operating up to 105 °C.
• Backup and Hold‑Up Circuits — Energy reservoir for short duration hold‑up and start‑up stabilization in general‑purpose designs.

Unique Advantages

• High Voltage Capability: The 200 V rating supports higher DC bus and intermediate‑voltage applications without series stacking.
• Compact Footprint: Miniature radial can and 1.0 cm lead spacing reduce PCB area compared with larger can types while retaining usable capacitance.
• Reliable High‑Temperature Performance: 3000 hours at 105 °C provides predictable lifetime for sustained elevated temperature operation.
• Effective Ripple Management: Specified ripple current at both low (120 Hz) and high (10 kHz) frequencies helps control heating and impedance in switching environments.
• Regulatory Compliance: RoHS compliance ensures suitability for regions and programs that require restricted substance conformance.

Why Choose UPS2D331MRD?

UPS2D331MRD balances high voltage capability and substantial capacitance in a compact radial can package, making it well suited to engineers designing switching power supplies and general‑purpose power systems that need reliable ripple handling and elevated temperature endurance. Its polarized aluminum construction and specified ripple current figures give clear sizing and thermal expectations for practical power‑filter designs.

Produced by Nichicon, this capacitor offers a combination of performance, miniature packaging, and compliance that supports long‑term deployment in industrial and electronic power designs where space, voltage rating, and operational temperature are key criteria.

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