UHW1C681MPD

The UHW1C681MPD is a miniature, high-reliability aluminum electrolytic capacitor in a radial lead can package. It delivers 680 µF at 16 V with low impedance and high ripple-current capability, designed for general-purpose power filtering and bulk decoupling in compact electronic systems.

Key strengths include a wide operating temperature range of −40 °C to 105 °C, long endurance (10,000 hours at 105 °C), and RoHS compliance—making it suitable for demanding, space-constrained designs that require sustained ripple handling and thermal robustness.

Key Features

• Capacitance & Voltage — 680 µF nominal capacitance with a rated voltage of 16 V and tolerance of −20% to +20%, providing substantial bulk energy storage for low-voltage rails.
• High Ripple Current — Low-frequency ripple current of 1.02 A (120 Hz) and high-frequency ripple current of 1.7 A (10 kHz), supporting effective smoothing under dynamic load conditions.
• Low Impedance — Rated impedance of 150 mΩ helps reduce voltage ripple and improves transient response in power supply circuits.
• Thermal Endurance — Specified lifetime of 10,000 hours at 105 °C, with specified limits on capacitance change, tan δ and leakage after endurance testing.
• Compact Radial Package — φ10 × 12.5 mm can with 5 mm lead spacing (±0.5 mm) and radial lead mounting for through-hole assembly where board area is limited.
• Electrical & Leakage Characteristics — Tan δ of 0.15 (measured at 20 °C, 120 Hz) and measured leakage current of 108.8 µA provide predictable AC loss and DC leakage behavior for design margining.
• Wide Temperature Range & Compliance — Operating range −40 °C to 105 °C and RoHS compliant for regulatory alignment.

Typical Applications

• Power Supply Filtering — Bulk smoothing and output filtering on low-voltage DC rails where 16 V rating and 680 µF capacitance provide effective energy buffering.
• Decoupling for Embedded Systems — Local energy storage for microcontrollers, DSPs, and mixed-signal boards to support transient loads and reduce supply noise.
• Industrial Control Electronics — Filtering and ripple handling in compact control modules that require long endurance and stable performance up to 105 °C.
• Communications and Networking Equipment — Power rail stabilization and bulk decoupling in space-constrained modules benefiting from high ripple-current capability and low impedance.

Unique Advantages

• High Ripple Capability: Specified 1.02 A (120 Hz) and 1.7 A (10 kHz) ripple currents allow the capacitor to handle both low- and high-frequency ripple in a small package.
• Compact Size with Performance: φ10 × 12.5 mm can delivers 680 µF capacitance and low impedance (150 mΩ) for designs where board area is limited but bulk capacitance is required.
• Long-Term Reliability: 10,000-hour endurance at 105 °C provides predictable aging behavior for products expected to operate under elevated temperatures.
• Predictable Electrical Losses: Specified tan δ (0.15 at 20 °C, 120 Hz) and measured leakage current support accurate thermal and power-loss budgeting.
• Through-Hole Mounting Convenience: Radial lead package with 5 mm lead spacing (±0.5 mm) simplifies prototyping and repair in through-hole assemblies.
• Regulatory Compliance: RoHS-compliant construction supports environmental directive requirements.

Why Choose UHW1C681MPD?

The UHW1C681MPD balances high capacitance and high ripple-current capability in a compact radial-lead aluminum electrolytic package, delivering reliable bulk energy storage and filtering for space-constrained designs. Its low impedance, defined loss characteristics, and long endurance at elevated temperature make it a solid choice for embedded systems, industrial controls, and communications equipment that require stable power filtering over time.

This part is well suited to engineers and buyers who need measurable electrical performance (capacitance, ripple current, impedance, leakage) tied to long-term thermal endurance and RoHS compliance, simplifying component selection for robust, manufacturable power designs.

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