RNL1E821MDS1

The RNL1E821MDS1 is a conductive polymer aluminum solid electrolytic capacitor in a radial-lead can, offering 820 µF capacitance at a 25 V rating. Built for general-purpose power systems, it combines high capacitance with low equivalent series resistance and high ripple current capability for robust filtering and energy-decoupling on 25 V rails.

With an operating temperature range from −55 °C to 105 °C and a rated endurance of 2000 hours at 105 °C, the RNL1E821MDS1 is specified for designs that require sustained performance under elevated temperatures and demanding ripple conditions.

Key Features

• Capacitance and Tolerance — 820 µF nominal with ±20% tolerance (at 120 Hz, 20 °C), providing substantial bulk capacitance for smoothing and energy storage.
• Rated Voltage — 25 V DC rating suitable for 25 V power rails and related applications.
• Low ESR — 10 mΩ ESR measured at 20 °C/100 kHz, minimizing voltage drop and heat under high-frequency operation.
• High Ripple Current — 810 mA at 120 Hz (low frequency) and 8.1 A at 300 kHz (high frequency), supporting heavy AC ripple and switching-power applications.
• Loss Tangent — tan δ = 0.12 measured at 20 °C/120 Hz, indicating controlled dielectric loss under typical test conditions.
• Temperature and Endurance — Specified operation from −55 °C to 105 °C with a rated life of 2000 hours at 105 °C.
• Form Factor — Radial lead can, size φ10 × 20 mm, lead spacing 5.0 mm (±0.5 mm), designed for through-hole mounting and straightforward assembly.
• Leakage Current — 2050 µA (measured after 2 minutes’ application of rated voltage at 20 °C), documented for predictable bias behavior.
• RoHS Compliance — Compliant with RoHS directive as stated in the product data.
• Packaging Options — Available in bulk (no terminal forming) or bag packing to accommodate production and prototype needs.

Typical Applications

• High-frequency power filtering — Low ESR at 100 kHz and high ripple capability make this part suitable for decoupling and filtering in switching regulator outputs and high-speed power stages.
• Bulk energy smoothing on 25 V rails — 820 µF capacitance provides bulk storage to stabilize 25 V supply lines against load transients and ripple.
• General-purpose power electronics — Designed for general-purpose use where elevated temperature endurance (2000 h at 105 °C) and robust ripple handling are required.

Unique Advantages

• High ripple tolerance: Rated ripple currents of 810 mA (120 Hz) and 8.1 A (300 kHz) reduce stress on the capacitor in both low- and high-frequency environments.
• Low thermal loss: 10 mΩ ESR at 100 kHz minimizes heat generation under AC loading, aiding thermal management in compact assemblies.
• Wide temperature range: −55 °C to 105 °C operation supports designs that experience broad ambient or internal temperature swings.
• Radial-lead convenience: φ10×20 mm can with 5.0 mm lead spacing simplifies through-hole placement and mechanical robustness in assembly.
• Documented endurance: Specified 2000 hours at 105 °C offers a defined lifetime metric for reliability planning.
• RoHS-compliant material set: Ensures environmental compliance for regional regulatory requirements.

Why Choose RNL1E821MDS1?

The RNL1E821MDS1 positions itself as a reliable, specification-driven solution for designers needing substantial capacitance, low ESR, and high ripple handling on 25 V rails. Its conductive polymer aluminum construction delivers measurable performance benefits—low loss, high ripple capability, and defined endurance—making it suitable for demanding power-supply filtering and bulk energy-storage roles.

This part is well suited to engineers and procurement teams focused on predictable electrical performance, thermal behavior, and compliance. Backed by the RNL series specifications, the RNL1E821MDS1 provides a clear set of design parameters for integrating robust capacitance into through-hole assemblies.

Request a quote or submit an inquiry to receive pricing and availability information for RNL1E821MDS1 and support on incorporating this capacitor into your design.