VISHAY 157 PUM-SI Series Electrolytic Capacitor, 680µF, 200V, Snap-in

The VISHAY 157 PUM-SI Series represents a high-performance, power ultra miniature snap-in aluminium electrolytic capacitor. Engineered for reliability in demanding applications, this polarised component features a non-solid electrolyte within a compact cylindrical aluminium case, insulated with a distinctive blue sleeve. It offers an excellent balance of large capacitance and very small physical dimensions, making it ideal for space-constrained designs where power density is critical.

This capacitor is designed for a long operational life, rated for 5000 hours at 85°C, and conforms to the IEC 60038 climatic category 25/085/56. Its robust construction ensures stable performance across a wide operating temperature range from -25°C to +85°C. The snap-in terminals facilitate secure and straightforward PCB mounting with a standard 10mm lead spacing, streamlining the assembly process in automated production environments.

Key Applications

The versatile 157 PUM-SI series is suitable for a broad spectrum of electronic systems. Its primary functions include smoothing and filtering in both standard and switched-mode power supplies (SMPS), where it helps to stabilise voltage outputs. It is also effectively employed for energy storage in pulse discharge systems, general-purpose industrial controls, and audio/video equipment, contributing to cleaner power delivery and enhanced system stability.

Technical Specifications

• Capacitance: 680 µF
• Rated DC Voltage: 200 V
• Capacitance Tolerance: ±20%
• Equivalent Series Resistance (ESR): 0.17 ohm
• Max. Ripple Current: 2.18 A
• Terminal Type: Snap-in
• Polarity: Polarised
• Case Material: Aluminium, blue insulating sleeve
• Electrolyte: Non-solid
• Lifetime: 5000 hours @ 85°C
• Operating Temperature Range: -25°C to +85°C
• **Climatic Su