UBY1K681MHL

The UBY1K681MHL is a radial-lead aluminum electrolytic capacitor in Nichicon’s UBY series, specified at 680 µF and 80 V. It combines high capacitance density with low impedance and elevated ripple-current capability for demanding power-filtering applications.

Designed for high-temperature operation and qualified to AEC‑Q200, this polarized, radial-can capacitor serves automotive and industrial power electronics where high ripple current, robust thermal endurance, and compact sizing are required.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with ±20% tolerance and an 80 V rated voltage for medium‑voltage power rails.
• High-Temperature Operation — Operating range from −40 °C to +135 °C with endurance specified at 2000 hours at 135 °C for the 63–100 V class.
• Low Impedance & High Ripple Handling — Low ESR of 38 mΩ (measured at 20 °C, 100 kHz) with ripple-current ratings of 1.608 A at 120 Hz and 2.68 A at 100 kHz.
• Leakage & Reliability — Specified leakage current of 1632 µA and AEC‑Q200 qualification for application-level reliability in harsh environments.
• Package & Mounting — Radial, can-style package (φ16 × 25L) with 7.5 mm lead spacing (±0.5 mm) and bulk/bag packing options for through‑hole assembly.
• Compliance — RoHS compliant.

Typical Applications

• Automotive Control Modules — Power‑rail smoothing and decoupling in control units (e.g., steering or engine control) where AEC‑Q200 qualification and high-temperature endurance are required.
• DC‑DC Converters — Bulk and output filtering on intermediate or high-voltage converter stages leveraging the 80 V rating and high ripple‑current capability.
• Motor Drive Electronics — Energy buffering and ripple suppression in motor controllers and power inverters operating across wide temperature ranges.
• Industrial Power Supplies — Filtering and stabilization for industrial power rails exposed to elevated temperatures and continuous ripple stress.

Unique Advantages

• High ripple-current capability: Ripple ratings at 120 Hz and 100 kHz (1.608 A and 2.68 A) reduce temperature rise under AC stress and improve system reliability.
• Low ESR: 38 mΩ at 100 kHz provides low AC loss and improved filtering performance in compact assemblies.
• High-temperature endurance: Rated for operation to +135 °C and specified 2000‑hour life at 135 °C for the 63–100 V range, enabling use in thermally demanding installations.
• Automotive-grade qualification: AEC‑Q200 rating supports deployment in vehicle electronics and other high-reliability applications.
• Compact through-hole form factor: φ16 × 25L radial can with 7.5 mm lead spacing simplifies retrofit and PCB layout for power modules.

Why Choose UBY1K681MHL?

UBY1K681MHL delivers a balanced combination of high capacitance, low ESR, and elevated ripple-current capacity in a compact radial-can package. Its −40 °C to +135 °C operating range and AEC‑Q200 qualification make it a reliable choice for automotive and industrial power-electronic designs that demand sustained performance under thermal and electrical stress.

For engineers specifying capacitors for power filtering, DC‑DC conversion, or motor-drive electronics, UBY1K681MHL offers verifiable electrical and environmental characteristics that simplify design trade-offs between size, thermal endurance, and ripple handling.

Request a quote or contact sales to discuss volume pricing, lead times, and packaging options for UBY1K681MHL.