UPJ1H821MHD

The UPJ1H821MHD is a radial-lead aluminum electrolytic capacitor from Nichicon's UPJ series, offering 820 µF capacitance at a 50 V rating. Designed for low-impedance power applications, it targets switching power supplies and general-purpose power filtering where high ripple handling and long-term thermal endurance are required.

With a compact φ12.5 × 40 mm can, 5 mm lead spacing and a rated operating range of −55 °C to +105 °C, this device balances bulk energy storage, low loss (tan δ 0.1 at 50 V, 20 °C, 120 Hz) and durable performance under load (5,000 h at 105 °C).

Key Features

• Capacitance & Voltage — 820 µF nominal capacitance with a 50 V rated voltage and ±20% tolerance (measured at 120 Hz, 20 °C), providing predictable bulk storage for power rails.
• Low Impedance / Low Loss — Specified tangent of loss angle (tan δ) of 0.1 at 50 V (20 °C, 120 Hz), supporting efficient energy transfer and reduced heating in power circuits.
• High Ripple Current Capability — Rated low-frequency ripple current of 1.224 A (120 Hz) and high-frequency ripple current of 1.7 A (200 kHz), suitable for smoothing and decoupling in switching supplies.
• Long Endurance at Elevated Temperature — Rated for 5,000 hours of load life at +105 °C, delivering sustained performance in thermally demanding environments.
• Radial Through-Hole Package — φ12.5 × 40 mm cylindrical can with 5.0 mm lead spacing (±0.5 mm) and radial lead mounting for straightforward through-hole assembly.
• Leakage Current Specified — Leakage current listed at 1,230 µA, enabling designers to budget for quiescent losses in power management circuits.
• RoHS Compliant — Conforms to RoHS requirements for environmental compliance.

Typical Applications

• Switching Power Supplies — Bulk filtering and smoothing to support stable output rails and handle switching ripple currents.
• Power Management Modules — Energy storage and decoupling for DC–DC converters and power regulators in industrial and consumer equipment.
• Industrial Power Electronics — High-temperature endurance and ripple capability for control power supplies and auxiliary circuits.
• General-Purpose Power Filtering — Smoothing and transient support across a wide range of general-purpose electronic designs.

Unique Advantages

• Reliable High-Temperature Life: 5,000 hours endurance at 105 °C provides predictable long-term behavior under sustained load.
• Designed for Ripple-Intensive Circuits: Specified ripple currents at both low (120 Hz) and high (200 kHz) frequencies let you size caps for real-world switching environments.
• Low Loss at Rated Voltage: tan δ of 0.1 at 50 V reduces dissipation and supports stable operation in power stages.
• Compact Through-Hole Form Factor: φ12.5 × 40 mm can and 5 mm lead spacing simplify placement and mechanical retention on PCBs.
• Clear Leakage Specification: Known leakage current (1,230 µA) helps with power-budgeting and standby-loss calculations.
• RoHS Compliance: Environmentally compliant construction suitable for regulated markets.

Why Choose UPJ1H821MHD?

The UPJ1H821MHD combines bulk capacitance, a 50 V rating and low-loss characteristics in a compact radial can designed for power conversion and general-purpose filtering. Its defined ripple current ratings and 5,000-hour high-temperature life make it a practical choice for engineers specifying capacitors for switching power supplies and other thermally demanding power circuits.

Ideal for designs that require dependable bulk storage, predictable leakage and established radial mounting, this Nichicon UPJ-series part provides a balanced option for production programs seeking RoHS-compliant components available in mass-production packaging.

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