UBY1J172MHL

The UBY1J172MHL is a radial-lead aluminum electrolytic capacitor in Nichicon’s UBY series, rated 1700 µF at 63 V. It combines high capacitance in a compact radial can package (φ16 × 35.5 mm) with a lead spacing of 7.5 mm for through-hole mounting.

Designed for high-temperature automotive electronics, the UBY series targets control-circuit use — for example electric power steering and direct injection engine drive — offering high ripple current capability, low ESR, and AEC-Q200 qualification for demanding environments.

Key Features

• Capacitance & Voltage — 1700 µF nominal capacitance with ±20% tolerance at 63 V rating, suitable for storage and smoothing in high-voltage control circuits.
• High Ripple Current — Low-frequency ripple current 2.052 A (120 Hz) and high-frequency ripple current 3.42 A (100 kHz) to support power-stage and switching applications.
• Low ESR — Equivalent series resistance of 27 mΩ measured at 20°C / 100 kHz, minimizing loss and temperature rise under ripple loading.
• High-Temperature Endurance — Rated operating range −40°C to +135°C with endurance specified as 2000 hours at 135°C (for 63 V units), designed for sustained high-temperature operation.
• Electrical Leakage & Loss — Leakage current specified at 3213 µA and tan δ (loss factor) of 0.10 at 20°C, 120 Hz for the 63 V rating, enabling predictable performance in bias conditions.
• Package & Mounting — Radial can construction (φ16 × 35.5 mm) with 7.5 mm lead spacing and bulk/bag packing options for board-level assembly and prototyping.
• Compliance & Qualification — AEC-Q200 qualified and RoHS compliant, supporting use in regulated automotive designs.

Typical Applications

• Electric Power Steering (EPS) — Provides high-capacitance energy storage and high ripple tolerance for steering control electronics.
• Direct Injection Engine Drive — Supports pulse-heavy drive and control circuits that require low ESR and stable performance at elevated temperatures.
• Automotive Control Modules — Suited for various vehicle control circuits where AEC-Q200 qualification and high-temperature endurance are required.

Unique Advantages

• Designed for high ripple environments: The rated ripple currents (2.052 A @120 Hz, 3.42 A @100 kHz) enable reliable operation in switching and power-regulation circuits.
• Reduced power loss under load: Low ESR (27 mΩ @100 kHz) minimizes I²R loss and heating, improving efficiency and thermal margin.
• High-temperature reliability: Endurance rated to 2000 hours at 135°C ensures sustained performance in elevated-temperature applications.
• Automotive-grade qualification: AEC-Q200 rating and RoHS compliance support integration into production automotive electronics.
• Through-hole convenience: Radial lead form and standard 7.5 mm lead spacing simplify PCB layout and handling for prototyping or repairable assemblies.

Why Choose UBY1J172MHL?

UBY1J172MHL is positioned for engineers designing high-temperature, high-ripple automotive control systems that require substantial capacitance in a compact radial package. Its combination of 1700 µF capacitance, low ESR, and AEC-Q200 qualification makes it a practical choice for control modules such as electric power steering and direct injection engine drive.

With defined endurance at 135°C, measurable ripple and ESR specifications, and RoHS compliance, this part provides predictable electrical behavior and long-term value for applications that demand robustness and thermal resilience.

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