UPJ2W3R3MHD

The UPJ2W3R3MHD is a miniature, high-reliability aluminum electrolytic capacitor from Nichicon's UPJ series. It is a radial-lead, polarized capacitor specified at 3.3 µF and 450 V, designed for general-purpose power applications and switching power supply circuits where compact high-voltage capacitance and long life at elevated temperature are required.

Key attributes include a compact φ12.5 × 20 mm can, a 5 mm lead spacing, low-impedance characteristics and long endurance under load (rated 5000 hours at 105°C), making it suitable for demanding power-filtering and energy-storage roles in industrial and power-electronics designs.

Key Features

• High rated voltage — 450 V Provides high-voltage capacitance for power rails and energy-storage applications that require elevated DC voltage capability.
• Capacitance — 3.3 µF ±20% Precision E12-series value for compact filtering and decoupling in power systems.
• Long endurance at elevated temperature Rated for 5,000 hours at 105°C under DC bias plus rated ripple current, supporting sustained operation in hot environments.
• Low-impedance characteristic Designed for switching power supplies and other power-conversion circuits where reduced impedance improves ripple performance (datasheet series characteristic).
• Tangent of loss angle (tan δ) — 0.25 Measured at 20°C, 120 Hz and 450 V; useful for evaluating dissipation in design tradeoffs.
• Ripple current capability Low-frequency ripple current: 48 mA at 120 Hz; high-frequency ripple current: 76.8 mA at 1 kHz — relevant for ripple handling in filter stages.
• Leakage current — 159.4 µA Specified leakage for predicting standby losses and insulation behavior under rated voltage.
• Compact radial-lead package Can dimensions φ12.5 × 20 mm with 5 mm lead spacing (±0.5 mm); radial lead mounting for through-hole assembly and prototyping.
• RoHS compliant Conforms to RoHS requirements as noted in the product data.
• Packaging options Available as Bulk (No Terminal Forming) or Bag packing to support different handling and assembly workflows.

Typical Applications

• Switching power supplies — Bulk and output filtering where a compact, high-voltage electrolytic with low impedance and defined ripple capability is required.
• Power conversion modules — Local energy storage and decoupling on high-voltage rails using a radial-lead form factor for through-hole or hybrid assemblies.
• Industrial power control — Filtering and smoothing in motor drives, inverters, and industrial power electronics that operate at elevated temperatures up to 105°C.
• General-purpose power filtering — Applications that need a small 3.3 µF, 450 V polarized capacitor with known leakage and loss characteristics.

Unique Advantages

• High-voltage capability: 450 V rating enables use on elevated DC rails without external series stacking.
• Designed for elevated-temperature longevity: 5,000-hour endurance at 105°C provides predictable life for thermal-stressed installations.
• Compact radial package: φ12.5 × 20 mm size with 5 mm lead spacing balances board-area savings with easy through-hole mounting.
• Quantified ripple and leakage specs: Specified low- and high-frequency ripple currents and leakage current support accurate thermal and power-loss budgeting.
• Polarized electrolytic performance: Provides the capacitance density expected from aluminum electrolytic construction for energy storage in power circuits.
• RoHS compliance: Meets regulatory requirements for lead-free assemblies.

Why Choose UPJ2W3R3MHD?

UPJ2W3R3MHD delivers a compact, high-voltage electrolytic solution tailored for power-electronics designs that require 3.3 µF at 450 V plus verified endurance at elevated temperature. Its combination of low-impedance behavior, defined ripple-current capabilities and measurable leakage/tan δ figures makes it straightforward to evaluate in thermal, ripple and lifetime calculations.

This part is a fit for engineers building switching power supplies, power conversion modules and general-purpose high-voltage filtering circuits who need a through-hole, radial-lead capacitor with predictable performance and RoHS compliance.

If you would like pricing, availability or a formal quote for UPJ2W3R3MHD, submit a request or inquiry to receive detailed commercial information and support.