ULD1H2R2MDD

The ULD1H2R2MDD is a Nichicon ULD-series radial lead aluminum electrolytic capacitor offering 2.2 µF capacitance at a 50 V rating in a miniature φ5×11 mm can. It delivers a long-life endurance specification and compact through-hole packaging for general-purpose electronic designs, including power supplies for LED lighting.

Designed for applications that require stable performance up to 105°C, this polarized capacitor combines low leakage and controlled dissipation factor with leaded mounting and standard 2.0 mm lead spacing for straightforward assembly.

Key Features

• Capacitance & Tolerance: 2.2 µF nominal with tolerance of −20% to +20% measured at 120 Hz, 20°C.
• Voltage Rating: 50 V rated voltage suitable for a wide range of mid-voltage circuits.
• Long Life Endurance: Rated for 10,000 hours at 105°C under the specified D.C. bias plus rated ripple current.
• Low Leakage Current: Typical leakage current specified at 3 µA after rated voltage application (measurement conditions per product data).
• Controlled Dissipation Factor: tan δ (DF) of 0.19 measured at 20°C, 120 Hz for predictable loss behavior in AC conditions.
• Ripple Current Capability: Low-frequency ripple current 14.7 mA at 120 Hz and high-frequency ripple current 35 mA (100 kHz measurement), useful for filtering and smoothing in power circuits.
• Package & Mounting: Radial lead can (φ5×11L) with 2.0 mm lead spacing (±0.5 mm) for through-hole mounting; available in bulk or bag packing (no terminal forming).
• Operating Temperature: –40°C to +105°C operating range for elevated-temperature environments.
• RoHS Compliant: Meets RoHS requirements as stated in the product data.

Typical Applications

• LED Lighting Power Supplies — Suitable for ULD-series use in power supply smoothing and energy storage in LED driver circuits.
• General-Purpose Electronic Equipment — Polarized capacitance for filtering and DC smoothing in a range of consumer and industrial devices.
• Compact Through-Hole Assemblies — Miniature φ5×11 mm can and 2.0 mm lead spacing fit space-constrained PCB layouts that require radial lead components.

Unique Advantages

• Long-term thermal endurance: 10,000 hours rated life at 105°C provides predictable aging characteristics for designs exposed to elevated temperatures.
• Compact footprint: φ5×11 mm can enables use in tight through-hole designs without sacrificing rated voltage or endurance.
• Low leakage: 3 µA leakage current supports applications where minimal standby losses and charge retention are important.
• Measurable loss characteristics: tan δ of 0.19 at 120 Hz, 20°C gives designers a clear metric for AC loss and thermal considerations.
• Frequency-aware ripple handling: Specified ripple currents at 120 Hz and 100 kHz allow designers to match capacitor selection to expected operating frequencies.
• RoHS compliance: Conforms to applicable RoHS directives as noted in the product data.

Why Choose ULD1H2R2MDD?

ULD1H2R2MDD combines a compact radial-lead package with a 50 V rating and long-life endurance at elevated temperature, making it well suited to general-purpose power filtering and smoothing tasks where board space is limited. The specified leakage, dissipation factor, and frequency-differentiated ripple current figures provide engineers with verifiable parameters for thermal and performance budgeting.

This Nichicon ULD-series part is a practical choice for designers and procurement teams who need a small, through-hole electrolytic capacitor with documented endurance and electrical characteristics for repeatable integration into mid-voltage circuits and LED power supplies.

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