UHD0J821MPD

The UHD0J821MPD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon's UHD series. It is a radial-lead, polarized capacitor specified at 820 µF and 6.3 V, designed for general-purpose electronic applications.

Designed for compact assemblies, the UHD series emphasizes lower impedance at high frequency and high ripple-current capability while maintaining a small case size and RoHS compliance.

Key Features

• Electrical: 820 µF, 6.3 V — Rated capacitance of 820 µF with a rated voltage of 6.3 V and capacitance tolerance of −20% to +20% (measured at 20°C, 120 Hz).
• Low loss / tan δ — Tangent of loss angle (tan δ) specified at 0.22 (20°C, 120 Hz) for the 6.3 V rating.
• High ripple current capability — Low-frequency ripple current of 746.3 mA at 120 Hz and high-frequency ripple current of 995 mA at 100 kHz, supporting higher AC stress environments.
• Leakage current — Specified leakage current of 51.66 µA (after rated voltage applied for specified measurement conditions).
• Temperature and endurance — Operating range −40°C to +105°C with endurance specified as 3000 hours at 105°C under rated conditions.
• Compact radial package — Case size φ8 × 15 mm, radial lead mounting with 3.5 mm lead spacing (lead spacing tolerance ±0.5 mm); available in bulk (no terminal forming) or bag packing.
• RoHS compliant — Meets the RoHS directive as indicated in product information.

Typical Applications

• General Purpose — For circuits requiring 820 µF capacitance at 6.3 V in a compact, radial-lead package for general-purpose use.
• Radial-lead assemblies — Suited to through-hole, radial-lead PCB implementations with φ8 × 15 mm can size and 3.5 mm lead spacing.
• High-ripple environments — Appropriate where elevated AC ripple currents are present, benefiting from specified ripple ratings at both low and high frequencies.

Unique Advantages

• High capacitance in a small footprint: 820 µF available in a φ8 × 15 mm can enables higher bulk capacitance where board space is constrained.
• Designed for high ripple: Rated ripple currents of 746.3 mA (120 Hz) and 995 mA (100 kHz) address AC stress in demanding circuits.
• Wide operating temperature: Specified for −40°C to +105°C operation to accommodate a broad range of environmental conditions.
• Long endurance at elevated temperature: 3000 hours at 105°C provides predictable life performance under rated conditions.
• Measured low-loss behavior: tan δ = 0.22 at 20°C, 120 Hz gives a quantified dissipation characteristic for design considerations.
• RoHS compliant: Conforms to RoHS requirements for regulatory compliance in lead-free assemblies.

Why Choose UHD0J821MPD?

The UHD0J821MPD pairs high capacitance and measurable low-impedance performance with a compact radial can, making it suitable for general-purpose designs that require reliable bulk capacitance at low voltage. Its specified ripple current ratings, defined leakage, and endurance figure provide engineering clarity for designs operating into elevated temperatures and AC stress conditions.

This part is appropriate for engineers and procurement teams seeking a RoHS-compliant, through-hole aluminum electrolytic solution from the Nichicon UHD family where space, ripple handling, and predictable end-of-life behavior are key selection criteria.

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