Vishay Electrolytic Capacitor, 220µF 450V, Snap-In

The Vishay 157 PUM-SI series is a power ultra-miniature snap-in aluminium electrolytic capacitor designed for demanding applications. This high-performance component features a non-solid electrolyte within a cylindrical aluminium case, insulated with a distinctive blue sleeve, and is engineered to deliver reliable operation in a compact form factor.

Offering a capacitance of 220µF and a rated DC voltage of 450V, this polarised capacitor is built to handle significant power demands. It boasts a long useful life of 5000 hours at 85°C and operates across a wide temperature range from -25°C to 85°C, conforming to climatic category IEC 60038 25/085/56. Its snap-in terminals ensure secure and straightforward mounting on printed circuit boards, with a standard 10mm lead spacing.

Key performance specifications include a low Equivalent Series Resistance (ESR) of 0.45 ohm and a ripple current rating of 1.73A, making it highly efficient for smoothing and filtering applications where stable power delivery is critical. The robust construction and high-quality materials ensure consistent performance and durability in various environments.

Primary Applications

This versatile capacitor is an excellent choice for:

• General-purpose circuitry
• Industrial control systems and machinery
• Audio and video equipment
• Smoothing and filtering in power circuits
• Standard and switched-mode power supplies (SMPS)
• Energy storage in pulse discharge systems

With its combination of a high voltage rating, substantial capacitance, and compact 'power ultra miniature' design, the Vishay 157 PUM-SI capacitor is a reliable solution for engineers seeking to optimise board space without compromising on performance or longevity.