UPZ2D391MHD

The UPZ2D391MHD is a miniature, high-voltage aluminum electrolytic capacitor from Nichicon’s UPZ series. It is a polarized, radial‑lead can designed for general-purpose electronic use where compact high-voltage energy storage and filtering are required.

With a rated capacitance of 390 µF at 200 V, a compact 16 × 40 mm case, and a rated operating range of –40 °C to +105 °C, this part targets compact power assemblies and high-voltage circuitry that require reliable ripple handling and long-term endurance.

Key Features

• Capacitance and Voltage: 390 µF rated capacitance at 200 V provides bulk energy storage and decoupling for high-voltage circuits.
• High ripple capability: Rated ripple current of 1.13 A at 120 Hz (1,130 mArms) and 1.582 A at 10 kHz supports effective AC ripple smoothing in power supplies.
• Miniature, radial can package: Compact 16 × 40 mm case with radial lead mounting and 7.5 mm lead spacing enables dense PCB layouts and through‑hole assembly.
• Wide operating temperature: Specified for –40 °C to +105 °C to accommodate a broad range of environmental conditions.
• Endurance and reliability: Designed for 2,000 hours at 105 °C under rated voltage and ripple current, with capacitance change within ±20% after endurance testing.
• Electrical characteristics: Capacitance tolerance ±20%; tan δ specified at 0.12 (200 V); leakage current limit defined as 0.04CV + 100 µA after 1 minute at 20 °C.

Typical Applications

• Power supply bulk filtering: 390 µF at 200 V provides bulk energy storage and smoothing for high-voltage power rails and linear supplies.
• DC link decoupling: Compact high-voltage capacitance for decoupling in compact converter and inverter assemblies.
• Industrial and instrumentation power modules: Suitable for space-constrained control and instrumentation power subsystems requiring stable performance to 105 °C.

Unique Advantages

• Compact high-voltage solution: 200 V rating in a 16 × 40 mm can delivers significant capacitance without large board area.
• Robust ripple handling: Specified ripple currents (1.13 A at 120 Hz; 1.582 A at 10 kHz) reduce heating and support reliable filtering across frequency ranges.
• Extended thermal endurance: 2,000-hour endurance at 105 °C supports sustained operation in higher-temperature environments.
• Clear, verifiable electrical limits: Specified tan δ (0.12) and leakage current formula allow predictable behavior during design and qualification.
• Through-hole radial mounting: Radial lead configuration with 7.5 mm lead spacing simplifies assembly and replacement in serviceable designs.

Why Choose UPZ2D391MHD?

The UPZ2D391MHD balances substantial capacitance and high-voltage capability in a compact radial can package, making it well suited for designers needing reliable bulk storage and ripple suppression in constrained assemblies. Its specified ripple ratings, wide operating temperature range, and documented 2,000‑hour endurance at 105 °C give clear engineering tradeoffs for long‑life power subsystems.

This capacitor is a practical choice for engineers and procurement teams building compact power supplies, DC link sections, and industrial power modules where predictable electrical behavior and thermal endurance are required.

Request a quote or submit an inquiry to evaluate UPZ2D391MHD for your design and to receive pricing and availability information tailored to your project needs.