UHD1C331MPD

The UHD1C331MPD is a radial-lead aluminum electrolytic capacitor in Nichicon’s UHD series, offering 330 µF capacitance at a 16 V rating. It is a polarized through-hole component designed for general-purpose power filtering and decoupling in electronic assemblies.

Engineered for compact, high-ripple applications, the UHD1C331MPD combines low impedance at higher frequencies with extended endurance at elevated temperatures, making it suitable for a wide range of consumer and industrial electronic designs that require reliable smoothing and transient handling.

Key Features

• Capacitance & Voltage: 330 µF nominal capacitance with a 16 V rated voltage and tolerance of -20% to +20% for predictable energy storage and filtering.
• Low Loss / DF: Tangent of loss angle (tanδ) of 0.16 measured at 20°C, 120 Hz, enabling stable dissipation characteristics in AC ripple environments.
• High Ripple Current Capability: Rated ripple current of 532 mA at 120 Hz (low frequency) and 760 mA at 100 kHz (high frequency), supporting demanding ripple and smoothing duties across frequency ranges.
• Leakage Current: Specified leakage current of 52.8 µA, measured under standard conditions to aid in power-budget calculations for long-term operation.
• Temperature & Endurance: Operates from −40°C to +105°C with an endurance rating of 3000 hours at 105°C, suitable for sustained elevated-temperature service.
• Compact Radial Package: Small φ8 × 11.5 mm can (approximately 0.8 × 1.15 cm), radial-lead mounting with 3.5 mm lead spacing and bulk/bag packing options for through-hole assembly workflows.
• RoHS Compliant: Meets RoHS directive requirements for environmental compliance.
• Series-Level Trait — Low Impedance at High Frequency: UHD series design emphasizes reduced impedance in the high-frequency range, improving performance in switching and high-frequency ripple conditions.

Typical Applications

• Power Supply Smoothing: Used on DC power rails to smooth ripple and stabilize output voltages in bench and board-level power supplies.
• Decoupling for Power Converters: Suitable for input/output filtering on switching regulators where high-frequency ripple current capability is required.
• Industrial and Consumer Electronics: General-purpose energy storage and transient suppression in control boards, instrumentation, and household electronic devices.

Unique Advantages

• High ripple handling across frequencies: Explicit ripple ratings at 120 Hz and 100 kHz allow designers to size capacitors based on both low- and high-frequency ripple conditions.
• Compact footprint for through-hole designs: φ8 × 11.5 mm can and 3.5 mm lead spacing reduce board area while retaining through-hole reliability and easy soldering.
• Long endurance at elevated temperature: 3000 hours at 105°C supports sustained operation in warm environments and helps minimize maintenance or replacement frequency.
• Predictable leakage and dissipation: Specified leakage current (52.8 µA) and tanδ (0.16) support accurate power-loss and thermal calculations during design.
• RoHS compliance: Meets environmental regulatory requirements for lead-free assemblies and global market deployment.
• Radial-lead packaging options: Bulk and bag packing accommodate different assembly and handling preferences for prototype through production runs.

Why Choose UHD1C331MPD?

The UHD1C331MPD delivers a focused combination of capacitance, compact packaging, and frequency-tailored performance for designs that require reliable smoothing and decoupling with limited board space. Its specified ripple current ratings at both low and high frequencies, along with low loss characteristics, make it appropriate for switching supplies and general-purpose power circuits where stable behavior across frequencies matters.

Backed by Nichicon’s UHD series characteristics—lower impedance at high frequency and extended endurance at 105°C—this part is well suited to engineers and procurement teams seeking a dependable, RoHS-compliant radial electrolytic capacitor for medium-voltage, medium-capacitance applications in consumer and industrial electronics.

Request a quote or submit an RFQ for the UHD1C331MPD to receive pricing, availability, and lead-time information tailored to your production needs.