UHW0J103MHD

The UHW0J103MHD is a miniature aluminum electrolytic capacitor from Nichicon’s UHW series designed for general-purpose electronic equipment. It is a radial-lead, polarized can-type capacitor engineered for high ripple current handling and high reliability in compact assemblies.

Key value propositions include reduced impedance at high frequencies, a small case footprint (L: 2.5 × D: 1.6 cm), and RoHS compliance, making it suited for power decoupling, smoothing and bulk energy storage in space-constrained designs.

Key Features

• Capacitance & Voltage — 10 mF rated at 6.3 V, with capacitance tolerance of ±20% at 120 Hz, 20°C.
• High Ripple Current — Rated ripple current of 3.239 A at 120 Hz and 3.81 A at 10 kHz, with frequency coefficient behavior defined by the UHW series.
• Low Impedance — Low impedance specification of 39 mΩ supports improved performance at higher frequencies.
• Temperature & Lifetime — Operating temperature range −40°C to +105°C and endurance of 10,000 hours at 105°C under rated DC bias plus rated ripple current.
• Package & Mounting — Radial lead, can package with 7.5 mm lead spacing; physical size L: 2.5 × D: 1.6 cm supports compact board layouts.
• Reliability Parameters — Leakage current specified as not more than 0.01CV (µA) after 2 minutes at 20°C; tan δ (max.) for 6.3 V is 0.21 at 120 Hz, 20°C (series characteristic).
• Compliance — Compliant with the RoHS directive (2011/65/EU, (EU)2015/863).

Typical Applications

• Power-supply filtering — Use as bulk smoothing and decoupling where 10 mF capacitance and high ripple capability reduce supply ripple in general-purpose equipment.
• DC-DC converter output — Suitable for output filtering in compact converters thanks to low impedance and high-frequency ripple handling.
• Embedded and industrial electronics — Provides reliable bulk energy storage in space-constrained control and instrumentation boards operating across −40°C to +105°C.

Unique Advantages

• Compact high-capacity solution — 10 mF in a 2.5 × 1.6 cm can reduces board area compared with larger cans while preserving capacitance needed for bulk filtering.
• High-frequency performance — Lower impedance at high frequencies combined with a specified 3.81 A ripple rating at 10 kHz supports demanding switching environments.
• Designed for long-term operation — 10,000-hour endurance at 105°C provides predictable life characteristics for high-temperature applications.
• Measurable reliability metrics — Specified leakage current and tan δ values allow engineers to quantify expected electrical behavior during design validation.
• RoHS compliance — Meets current RoHS requirements for materials compliance in commercial and industrial products.

Why Choose UHW0J103MHD?

UHW0J103MHD is positioned for designers who need a reliable, compact aluminum electrolytic capacitor with strong ripple-current capability and proven endurance at elevated temperatures. Its combination of low impedance, specific ripple ratings at 120 Hz and 10 kHz, and a 10,000-hour rated life at 105°C makes it suitable for applications that balance size constraints with demanding power-management requirements.

This part is a practical choice for procurement and engineering teams building general-purpose electronic equipment that requires predictable electrical parameters, RoHS compliance, and a small radial-lead can package for straightforward through-hole assembly.

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