UPJ1E821MHD

The UPJ1E821MHD is an aluminum electrolytic, radial-lead capacitor with 820 µF capacitance and a 25 V rating. It is a low-impedance design intended for general-purpose power applications and is described by the UPJ series as ideally suited for use in switching power supplies.

Designed for reliability in elevated-temperature environments, this part offers a long load life specification and industry-standard radial packaging for through-hole assembly and manual or bulk placement.

Key Features

• Capacitance & Voltage: 820 µF at 25 V — suitable for smoothing and bulk energy buffering on 25 V power rails.
• Low impedance construction: UPJ series low-impedance design optimized for switching power supplies and high-ripple environments.
• High ripple current capability: 871.2 mA at 120 Hz (low frequency) and 1.21 A at 200 kHz (high frequency) to handle pulsating loads.
• Endurance: Rated 5000 hours at +105 °C under specified DC bias plus rated ripple current, supporting sustained operation in hot environments.
• Temperature range: –55 °C to +105 °C for broad operating environments.
• Electrical loss: tanδ = 0.14 (measured at 20 °C, 120 Hz), providing a quantified dissipation factor for design verification.
• Leakage current: 615 µA (specified), allowing designers to budget quiescent currents accurately.
• Radial package and dimensions: φ12.5 × 20 mm can with 5.0 mm lead spacing (±0.5 mm), compatible with through-hole layouts and manual assembly; available in bulk or bag packing.
• Environmental compliance: RoHS compliant per product documentation.

Typical Applications

• Switching power supplies — Low impedance and rated ripple current make this capacitor suitable for output filtering and bulk decoupling in SMPS designs.
• General-purpose power supply filtering — 820 µF capacitance at 25 V supports smoothing and energy buffering on common 25 V rails.
• Industrial power modules — Long life at 105 °C and robust ripple handling help maintain performance in elevated-temperature power assemblies.
• Through-hole and prototyping assemblies — Radial lead format and standard 5 mm lead spacing simplify placement in hand-assembled or bulk-processed boards.

Unique Advantages

• Designed for switching environments: Low-impedance UPJ construction and specified high-frequency ripple rating (1.21 A at 200 kHz) provide reliable filtering where switching ripple is present.
• Long high-temperature endurance: 5000 hours at +105 °C under load improves reliability and reduces the need for overdesign in thermal-stressed applications.
• Predictable electrical characteristics: Specified tanδ (0.14 at 20 °C, 120 Hz) and leakage current (615 µA) let engineers model dissipation and standby losses precisely.
• Compact through-hole form factor: φ12.5 × 20 mm can with 5 mm lead spacing offers a balance of capacitance and board footprint for space-constrained designs.
• Packaging flexibility: Available in bulk (no terminal forming) or bag packing to match production and prototyping workflows.
• Regulatory alignment: RoHS compliance supports regulatory and environmental requirements for many industrial and commercial products.

Why Choose UPJ1E821MHD?

UPJ1E821MHD combines a high capacitance density (820 µF) and a 25 V rating with the UPJ series' low-impedance construction, delivering practical ripple handling and smoothing for switching power supplies and general-purpose power rails. Its 5000‑hour endurance at +105 °C and specified loss and leakage figures make behavior predictable for engineering and thermal planning.

This part is well suited for designers and purchasers seeking a radial, through-hole electrolytic capacitor that balances capacitance, ripple capability, and long-term thermal endurance for industrial, power-supply, and general electronics applications.

Request a quote or submit an inquiry for UPJ1E821MHD to receive pricing, availability, and ordering information tailored to your production needs.