The B32921C3683M is a metallized polypropylene film capacitor manufactured by EPCOS (TDK). These capacitors are designed for use in various AC applications, particularly in interference suppression and safety-critical circuits.

Applications

• EMI suppression
• Across-the-line applications
• Input filtering in power supplies
• Motor control circuits
• Safety capacitors

Features

• Metallized polypropylene film construction
• Self-healing properties
• High pulse strength
• Flame-retardant epoxy resin coating
• Safety approvals (e.g., ENEC, UL, CSA)

Benefits

• Effective suppression of electromagnetic interference
• Reliable performance in AC applications
• Self-healing capability for extended life
• Safety-certified for use in critical circuits

Technical Specifications

The B32921C3683M has a capacitance of 0.068 µF with a tolerance of ±20%. Its voltage rating is 305 VAC (X2 safety capacitor). The capacitor is designed for an operating temperature range of -40°C to +110°C. It is constructed with a metallized polypropylene film and encapsulated in a flame-retardant epoxy resin. The capacitor meets the requirements of safety standards such as ENEC, UL, and CSA. The lead spacing is typically 15 mm. The self-healing properties of the metallized film allow the capacitor to recover from minor overvoltage events, ensuring long-term reliability.

This capacitor is well-suited for applications requiring reliable interference suppression and safety. Its safety certifications and robust construction make it a popular choice in power supplies, consumer electronics, and industrial equipment. The part is lead-free and RoHS compliant.