ULD1E101MED

The ULD1E101MED is a miniature aluminum electrolytic capacitor in a radial can package designed for long-life applications. It combines a compact footprint with a 100 µF, 25 V electrical rating and polarized construction for general-purpose power filtering and decoupling.

Engineered for elevated-temperature operation—with a rated temperature range of -40 °C to +105 °C and a load-life rating of 10000 hours at +105 °C—this part is suited for applications such as LED lighting power supplies and other compact power electronics where longevity and small size are required. The device is RoHS compliant.

Key Features

• Electrical characteristics — 100 µF nominal capacitance at 25 V rated voltage with tolerance of -20% to +20%; polarized for DC power applications.
• Long-life endurance — Rated for 10000 hours at +105 °C under DC bias plus rated ripple current, providing extended service life in high-temperature environments.
• Wide operating temperature — Specified to operate from -40 °C to +105 °C for versatile deployment across temperature-challenging installations.
• Compact radial can package — Radial lead mounting with a small footprint (L: 1.1 × D: 0.63 cm) and 2.5 mm lead spacing for space-constrained PCB layouts.
• Ripple current capability — Supports 147 mA at 120 Hz and 210 mA at 100 kHz, enabling effective smoothing of supply ripple in power circuits.
• Compliance — RoHS directive compliant (2011/65/EU, (EU)2015/863), meeting environmental restriction requirements.

Typical Applications

• LED lighting power supplies — Provides reliable smoothing and energy storage in LED driver circuits designed for sustained high-temperature operation.
• Compact power filtering — Used for bulk or decoupling capacitance in small form-factor power supplies and converters where board space is limited.
• General-purpose electronics — Suitable for through-hole designs requiring a miniature, long-life polarized capacitor for DC power rails.

Unique Advantages

• Long-term high-temperature performance: 10000-hour load-life at +105 °C supports designs intended for extended operation in hot environments.
• Small footprint, through-hole convenience: The radial can and compact dimensions simplify placement in densely populated PCBs while retaining through-hole robustness.
• Measured ripple capacity: Specified ripple current values at both low and high frequencies help designers size capacitors for real-world switching and LED driver waveforms.
• Clear electrical spec set: 100 µF, 25 V, ±20% tolerance and polarized construction provide straightforward selection for DC power applications.
• Regulatory alignment: RoHS compliance addresses environmental and material restriction requirements for modern electronics manufacturing.

Why Choose ULD1E101MED?

ULD1E101MED delivers a combination of miniature packaging and long-life endurance that addresses the needs of compact power electronics, particularly LED lighting power supplies and other DC power rails operating at elevated temperatures. Its defined ripple current ratings and broad temperature range enable predictable performance in steady-state and switching environments.

This capacitor is a practical choice for engineers specifying reliable, space-efficient aluminum electrolytic capacitance with proven lifetime characteristics and RoHS compliance. It is well suited to designs where small size, through-hole mounting, and extended high-temperature operation are priorities.

Request a quote or submit a product inquiry to receive pricing and availability information for ULD1E101MED. Our team can provide lead-time details and assistance integrating this capacitor into your BOM.