UCY2C121MHD

The UCY2C121MHD is a radial‑lead aluminum electrolytic capacitor designed for miniature, high‑reliability power applications. It delivers 120 µF capacitance at a 160 V rating in a compact φ12.5 × 25 mm can, with a polarized radial‑lead package and 5 mm lead spacing.

Engineered for high ripple endurance and extended operational life, this part is targeted at power supply and ballast applications and is qualified to AEC‑Q200 for use in demanding environments. The device offers a wide operating temperature range from −40°C to +105°C and a rated life of 12,000 hours at 105°C.

Key Features

• Capacitance and Voltage: 120 µF nominal capacitance with a 160 V rated voltage and tolerance of −20% to +20%.
• High ripple current capability: Designed for high ripple environments—760 mA at 120 Hz (low frequency) and 1.52 A at 100 kHz (high frequency).
• Long‑life performance: Endurance specified at 12,000 hours at 105°C under DC bias plus rated ripple current, with capacitance change within ±20% after life test.
• Thermal range and stability: Operating temperature from −40°C to +105°C with tan δ (DF) specified at 0.20 measured at 20°C, 120 Hz.
• Leakage and loss characteristics: Measured leakage current specified at 868 µA and tan δ limited to 0.20 for the 160 V rating at test conditions.
• Compact radial package: φ12.5 mm diameter, 25 mm length can with 5.0 mm lead spacing (lead spacing tolerance ±0.5 mm); available in bulk or bag packing (no terminal forming).
• Industry qualifications and compliance: AEC‑Q200 qualified and RoHS compliant.

Typical Applications

• Power supplies: Filtering and smoothing in DC power supplies where high ripple current handling and extended life at elevated temperature are required.
• Ballasts and lighting electronics: Energy storage and ripple management in ballast circuits as indicated by series guidance.
• Automotive electronic modules: Use in automotive electronics where AEC‑Q200 qualification and wide temperature range (−40°C to +105°C) are required.

Unique Advantages

• High ripple endurance: Explicit ripple current ratings (760 mA @120 Hz, 1.52 A @100 kHz) reduce thermal stress in high‑frequency and high‑ripple designs.
• Extended high‑temperature life: 12,000 hours rated life at 105°C supports long service intervals and predictable aging for demanding deployments.
• AEC‑Q200 qualified: Qualification supports use in designs that require recognized component stress testing for reliability.
• Compact form factor: φ12.5 × 25 mm can with radial leads and 5 mm spacing simplifies through‑hole layout while conserving board area.
• Measured electrical parameters: Defined leakage current (868 µA) and tan δ (0.20 at 20°C, 120 Hz) provide clear, verifiable performance targets for design verification.
• RoHS compliant packaging: Available in bulk or bag packing, meeting RoHS requirements for environmental compliance.

Why Choose UCY2C121MHD?

UCY2C121MHD combines a compact radial can package with high ripple capability and a long endurance rating, making it suitable for power‑dense designs that operate across a wide temperature range. With AEC‑Q200 qualification and explicit electrical specifications for leakage, tan δ, and ripple current, this capacitor provides predictable behavior for engineering validation and long‑term deployment.

This part is ideal for engineers and procurement teams designing power supplies, ballast circuits, and automotive electronic modules that require a polarized, high‑reliability aluminum electrolytic solution with documented life and performance metrics.

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