UEP1H3R3MDD

The UEP1H3R3MDD is a bi-polarized aluminum electrolytic capacitor designed for general-purpose electronic applications requiring polarity inversion capability and wide temperature operation. It delivers 3.3 µF capacitance at a 50 V rating in a compact radial-can package (φ5×11L) with 2 mm lead spacing.

Key value propositions include a broad operating temperature range from −55 °C to +105 °C, defined AC loss (tan δ 0.14 at 120 Hz), controlled leakage (4.95 µA), and a 1000-hour endurance rating at 105 °C with polarity inversion—making it suitable for designs where temperature tolerance and bipolar operation are required.

Key Features

• Electrical Characteristics — 3.3 µF nominal capacitance with ±20% tolerance at 120 Hz, rated for 50 V operation; tangent of loss angle (tan δ) specified as 0.14.
• Bi-Polarized Construction — Designed for polarity inversion scenarios; endurance testing includes polarity inversion every 250 hours during the 1000-hour life test.
• Wide Temperature Range — Operates across −55 °C to +105 °C to support temperature-critical designs.
• Endurance and Reliability — Rated life of 1000 hours at 105 °C with defined limits on capacitance change, tan δ increase, and leakage current after test.
• Ripple Current Ratings — Low-frequency ripple current of 22 mA at 120 Hz and high-frequency ripple current of 44 mA at 10 kHz, for predictable filtering behavior across frequencies.
• Low Leakage — Specified leakage current of 4.95 µA to help maintain circuit stability over time.
• Package & Mounting — Radial lead, can-style package (φ5×11L) with 2 mm lead spacing and 0.5 mm lead spacing tolerance; supplied in bulk or bag packing.
• Regulatory Compliance — RoHS compliant.

Typical Applications

• General-purpose electronics — Suited for circuits requiring a compact bipolar electrolytic capacitor where space is limited and reliable capacitance is needed.
• AC coupling and signal-path circuitry — Bi-polarized design supports applications with polarity reversal, making it applicable to AC coupling and signal filtering where polarity can change.
• Temperature-critical designs — The −55 °C to +105 °C rating supports use in assemblies that must maintain performance across a wide ambient range.
• Compact radial assemblies — Small φ5×11L radial-can footprint and 2 mm lead spacing fit tightly packed, through-hole PCB layouts.

Unique Advantages

• Bi-polarized capability: Enables use in circuits with polarity inversion without requiring separate polarity protection components.
• Wide operating temperature: −55 °C to +105 °C rating provides design margin for applications exposed to extreme temperatures.
• Defined endurance: 1000 hours at 105 °C with polarity inversion testing gives measurable reliability data for life-critical design decisions.
• Predictable AC performance: Specified tan δ (0.14) and frequency-specific ripple current ratings (22 mA at 120 Hz, 44 mA at 10 kHz) support predictable filtering and decoupling performance across frequencies.
• Compact, through-hole form factor: φ5×11L radial can with 2 mm lead spacing simplifies PCB layout for through-hole assemblies.
• RoHS compliant: Matches regulatory requirements for restricted substances in many regions.

Why Choose UEP1H3R3MDD?

UEP1H3R3MDD delivers a compact, bi-polarized electrolytic solution for designs that require stable capacitance, predictable AC loss, low leakage, and operation across a broad temperature range. Its 50 V rating, defined ripple current values at both low and high frequencies, and 1000-hour endurance make it suitable for engineers who need measured electrical behavior and reliability data for design validation.

This part is appropriate for engineers and purchasing teams specifying a radial lead, bi-polarized aluminum electrolytic capacitor for general-purpose circuits, AC-coupled signal paths, or temperature-challenged environments. RoHS compliance and clear packaging options (bulk/bag) support integration into production workflows.

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