UBY1H112MHL

The UBY1H112MHL is a radial-lead aluminum electrolytic capacitor with 1,100 µF capacitance and a 50 V rated voltage. It is part of the UBY series designed for high-temperature, high-ripple-current applications and is intended for use in demanding automotive and power-electronics environments.

Featuring low ESR and high ripple-current capability, this polarized radial can supports smoothing, decoupling and energy-buffering tasks where elevated temperature endurance and reliability are required.

Key Features

• Capacitance & Tolerance — 1,100 µF nominal capacitance with ±20% tolerance at 120 Hz, 20°C.
• Rated Voltage — 50 V DC rating for medium-voltage power circuits.
• Low ESR — 37 mΩ equivalent-series resistance measured at 20°C/100 kHz, supporting lower loss and improved efficiency under ripple load.
• High Ripple Current — 1.512 A at 120 Hz (low frequency) and 2.52 A at 100 kHz (high frequency) for robust performance in high-current, switching environments.
• High Temperature Endurance — Operating range −40°C to +135°C with endurance specified at 3,000 hours at 125°C or 135°C (depending on rated voltage), enabling sustained operation in elevated-temperature applications.
• Automotive Qualification — AEC-Q200 qualified and specified for automotive applications; suitable where automotive-grade qualification is required.
• Package & Mounting — Radial, can-style package (φ12.5 × 30.5 mm) with 5.0 mm lead spacing (±0.5 mm), supplied in bulk or bag packing.
• Compliance — RoHS compliant.
• Leakage Current — Specified leakage current of 1,650 µA (per part data), measured under standard conditions.

Typical Applications

• Automotive control modules — Used in automobile control circuits such as electric power steering to provide high-ripple filtering and energy buffering at elevated temperatures.
• Engine management systems — Suitable for direct injection engine drive circuits where high ripple current and high-temperature endurance are required.
• Power supply filtering — Employed in DC bus smoothing and decoupling where low ESR and high ripple capability improve stability in switching power systems.

Unique Advantages

• High ripple handling — Rated for 1.512 A (120 Hz) and 2.52 A (100 kHz), enabling reliable filtering under heavy switching and pulsating load conditions.
• Low loss under HF operation — 37 mΩ ESR at 100 kHz reduces heat generation and supports efficient operation in high-frequency circuits.
• Extended high-temperature life — Endurance rating of 3,000 hours at elevated temperatures (125°C/135°C) provides predictable lifetime in thermally demanding designs.
• Automotive-grade reliability — AEC-Q200 qualification aligns the part with automotive development and validation processes.
• Compact radial form factor — φ12.5 × 30.5 mm can with 5 mm lead spacing fits dense through-hole layouts while delivering substantial capacitance.

Why Choose UBY1H112MHL?

UBY1H112MHL combines high capacitance with low ESR and strong ripple-current capability in a compact radial-can package, making it well suited for engineers designing robust power and control electronics for automotive and other high-temperature environments. Its AEC-Q200 qualification and 3,000-hour high-temperature endurance provide a clear, specification-driven basis for selecting this capacitor where verified thermal and ripple performance are required.

This part is appropriate for designs that demand dependable smoothing and decoupling at elevated temperatures and medium DC voltages, offering straightforward integration into through-hole assemblies with standard 5 mm lead spacing and bulk or bag packing for production use.

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