UEP1E100MDD

The UEP1E100MDD is a bi‑polar aluminum electrolytic capacitor in a radial lead can designed for wide‑temperature operation. It is rated 25 V with a nominal capacitance of 100 µF and a capacitance tolerance of ±20% (measured at 120 Hz, 20 °C). The part is intended for general‑purpose circuits that require stable capacitance, low leakage and tolerance for polarity inversion over extended temperature ranges.

Key attributes include bipolar polarity, an operating range from −55 °C to +105 °C, through‑hole radial mounting with 5.0 mm lead spacing, and a compact φ12.5 × 20 mm case size.

Key Features

• Bi‑Polar Construction  Supports applications where polarity may reverse; polarity is inverted periodically in endurance testing per datasheet procedures.
• Wide Temperature Range  Rated for −55 °C to +105 °C to support operation across extreme ambient conditions.
• Electrical Ratings  Rated voltage 25 V and rated capacitance 100 µF with ±20% tolerance at 120 Hz, 20 °C; tangent of loss angle (tan δ) specified as 0.20 at 25 V, 120 Hz, 20 °C.
• Leakage and Loss Characteristics  Specified leakage current of 75 µA and tan δ = 0.20 provide predictable low‑loss performance for decoupling and filtering applications.
• Ripple Current Performance  Rated ripple current of 34 mA at 120 Hz and 68 mA at 10 kHz, with applicable frequency coefficients defined in the series datasheet.
• Robust Endurance  Endurance defined as 1000 hours at 105 °C with polarity inversion every 250 hours, with specified limits on capacitance change, tan δ and leakage current after test.
• Through‑Hole Radial Package  Compact radial can, φ12.5 × 20 mm, lead spacing 5.0 mm and radial lead mounting for secure mechanical connection in through‑hole PCB designs.
• RoHS Compliant  Material and process comply with RoHS requirements noted for the series.

Typical Applications

• General Purpose Electronics  Ideal for general‑purpose filtering, decoupling and energy storage where bipolar operation and wide temperature tolerance are required.
• Industrial Control  Suitable for control boards and sensors operating across extended ambient temperatures due to its −55 °C to +105 °C rating.
• Signal and AC Coupling  Bi‑polar behavior supports circuits where AC coupling or polarity reversal can occur.
• Power Supply Filtering  Provides low‑loss filtering and ripple handling at both low and higher frequencies (specified ripple current at 120 Hz and 10 kHz).

Unique Advantages

• Designed for Bipolar Operation:  The bi‑polar construction allows use where polarity may reverse, simplifying designs that handle AC components or switching conditions.
• Wide Operating Temperature:  −55 °C to +105 °C rating expands usable environments and reduces need for multiple capacitor families across temperature extremes.
• Predictable Endurance:  1000 hours at 105 °C with specified post‑test limits provides a measurable reliability baseline for lifetime planning.
• Compact Radial Form Factor:  φ12.5 × 20 mm can and 5.0 mm lead spacing offer a small footprint for through‑hole designs while maintaining adequate capacitance.
• Low Leakage and Controlled Loss:  Leakage current of 75 µA and tan δ = 0.20 (25 V, 120 Hz, 20 °C) help minimize standby losses and provide stable performance in filtering roles.
• Frequency‑aware Ripple Ratings:  Specified ripple currents at 120 Hz and 10 kHz allow designers to size the capacitor for expected AC stress and frequency behavior.

Why Choose UEP1E100MDD?

The UEP1E100MDD combines bipolar construction, wide operating temperature range and defined endurance characteristics to deliver predictable, long‑term performance in general‑purpose and industrial electronics. Its compact radial package and 5.0 mm lead spacing make it straightforward to integrate into through‑hole PCB layouts while the specified leakage, tan δ and ripple current figures enable reliable power‑filtering and coupling implementations.

This part is well suited to engineers and procurement teams specifying capacitors for designs that require polarity tolerance, broad temperature margins and traceable endurance data from a RoHS‑compliant product family.

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