UBY1J951MHL

The UBY1J951MHL is a radial-lead aluminum electrolytic capacitor from Nichicon’s UBY series, specified at 950 µF and 63 V. It is engineered for high-temperature operation (–40 °C to 135 °C) and platforms that require high ripple handling and low impedance.

Targeted for automotive applications and control circuitry, this part combines high capacitance, low ESR, and rated endurance for elevated-temperature environments to support power-stabilizing and ripple-absorbing roles in demanding designs.

Key Features

• Capacitance & Voltage: 950 µF nominal capacitance at a 63 V rating with ±20% tolerance, providing bulk energy storage for 63 V systems.
• High-Temperature Operation: Rated for operation from –40 °C to 135 °C, suitable for high-temperature automotive control environments.
• High Ripple Current Capability: Low-frequency ripple current of 1.782 A (120 Hz) and high-frequency ripple current of 2.97 A (100 kHz) to support circuits with significant AC ripple content.
• Low ESR: Equivalent series resistance of 38 mΩ measured at 20 °C/100 kHz for improved filtering and reduced power loss.
• Endurance: Designed to meet 2000 hours endurance at 135 °C for the 63 V rating, with defined limits for capacitance change, tan δ, and leakage current after life testing.
• Physical & Mounting: Radial lead can package, size φ12.5 × 35.5 mm (L × D), lead spacing 5.0 mm, available in bulk or bag packing for production assembly.
• Compliance & Qualification: AEC‑Q200 qualified and RoHS compliant, matching requirements for automotive-grade components and environmental directives.

Typical Applications

• Automobile control circuits — Designed for control modules that require stable bulk capacitance and high ripple handling in vehicular electronics.
• Electric power steering systems — Supports smoothing and transient suppression in power-assist control electronics where temperature and ripple robustness are required.
• Direct injection engine drive — Suited for high-demand engine-control actuators and drivers that operate in elevated-temperature automotive environments.

Unique Advantages

• High ripple endurance: Measured ripple current ratings at both low and high frequency enable reliable filtering where AC ripple is significant.
• Low-loss performance: 38 mΩ ESR at 100 kHz reduces heat generation and improves efficiency in power stages.
• High-temperature reliability: Specified for −40 °C to 135 °C and endurance-tested at 135 °C for 2000 hours, offering predictable behavior in hot environments.
• Automotive qualification: AEC‑Q200 status supports use in automotive subsystems requiring industry-recognized component qualification.
• Production readiness: Mass-production status with bulk and bag packing options simplifies procurement and assembly planning.
• Regulatory compliance: RoHS compliance for environmental regulatory alignment.

Why Choose UBY1J951MHL?

The UBY1J951MHL positions itself as a high-capacitance, low-impedance radial electrolytic solution for designs that demand robust ripple handling and elevated-temperature endurance. Its combination of 950 µF at 63 V, low ESR, and AEC‑Q200 qualification makes it suitable for automotive control modules and other high-temperature power applications.

Engineers specifying this part will find a well-documented endurance profile and production availability from Nichicon, supporting long-term design stability and predictable behavior under rated electrical and thermal conditions.

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