PLF0E391MDL4

The PLF0E391MDL4 is a conductive polymer aluminum solid electrolytic capacitor in a radial lead can package. It delivers low ESR and high ripple‑current capability in a compact radial form factor for embedded power applications.

Designed for automotive environments, this AEC‑Q200 qualified part provides a 390 µF capacitance at 2.5 V with a -55 °C to 105 °C operating range, making it suitable where stable decoupling and power filtering are required under elevated temperatures and vibration‑friendly leaded mounting.

Key Features

• Capacitance & Voltage — 390 µF rated capacitance at 2.5 V provides bulk decoupling and energy storage in low‑voltage power rails.
• Low ESR — 20 mΩ equivalent series resistance measured at 100 kHz, supporting lower power loss and improved efficiency in high‑frequency circuits.
• High Ripple Current — Rated for 1.6 A at 120 Hz and 3.2 A at 100 kHz, enabling effective smoothing in high‑ripple environments.
• Temperature & Lifetime — Operating range from -55 °C to 105 °C with a load life of 2000 hours at 105 °C for robust thermal endurance.
• Automotive Qualification — AEC‑Q200 qualified and specified for automotive applications.
• Leaded Radial Package — Radial, can‑style package with 2.5 mm lead spacing and compact dimensions (L: 1.05 × D: 0.63 cm), compatible with leaded through‑hole assembly and lead‑free flow soldering conditions.
• Compliance — RoHS compliant (2011/65/EU, (EU)2015/863), suitable for regulated markets.

Typical Applications

• Automotive power filtering — Bulk decoupling and smoothing on low‑voltage vehicle power rails where low ESR and high ripple handling are required.
• In‑vehicle electronics modules — Energy storage and transient suppression for control units and sensor interface circuits operating across -55 °C to 105 °C.
• Power supply output stages — Local energy reservoir and ripple attenuation for DC‑DC converters and low‑voltage regulators in automotive systems.

Unique Advantages

• High ripple tolerance: Specified ripple current at both low and high frequencies supports demanding switching converter outputs and reduces thermal stress.
• Low loss at high frequency: 20 mΩ ESR at 100 kHz minimizes dissipation and helps maintain voltage stability under fast load transients.
• Automotive‑grade reliability: AEC‑Q200 qualification and 2000‑hour load life at 105 °C provide predictable endurance for vehicle electronics.
• Compact radial footprint: Small can dimensions and 2.5 mm lead spacing enable straightforward through‑hole mounting and retention in legacy and mixed‑technology assemblies.
• Regulatory readiness: RoHS compliance and lead‑free flow soldering compatibility simplify regulatory and manufacturing requirements.

Why Choose PLF0E391MDL4?

PLF0E391MDL4 positions itself as a compact, automotive‑qualified conductive polymer capacitor offering a balance of high capacitance, low ESR, and elevated ripple current capability. Its temperature rating and specified load life provide the reliability engineers expect for in‑vehicle power applications and other demanding embedded systems.

This part is well suited for designs that require robust power rail decoupling and filtering at low voltages, especially where through‑hole mounting and leaded assembly are preferred. The combination of electrical performance and automotive qualification supports long‑term use in production programs that prioritize predictable behavior under thermal and electrical stress.

Request a quote or submit an inquiry to discuss availability, lead times, and volume pricing for PLF0E391MDL4. Our team can provide technical details and assist with procurement and application questions.