SFJEC5000334MX0

Overview

The SFJEC5000334MX0 is an axial feedthrough capacitor manufactured by Knowles Syfer. It features a capacitance of 0.33 µF with a voltage rating of 500 V. The component utilizes X7R dielectric material and offers a tolerance of ±20%. Designed for high-reliability applications, it operates within a temperature range of -55°C to +125°C. This device serves as an electromagnetic interference (EMI) filter in electronic circuits.

Feature Summary

• Provides effective electromagnetic interference filtering through axial feedthrough architecture
• Utilizes robust X7R ceramic dielectric for stable performance across wide temperature ranges
• Engineered for high-reliability environments requiring durable electrical isolation

Applications

• Electromagnetic interference suppression in sensitive electronic systems
• Power supply input/output filtering for high-voltage circuits
• Signal integrity protection in aerospace and defense equipment

Procurement Notes

Verify the specific manufacturer part number against official Knowles Syfer documentation before procurement. Confirm that the axial lead configuration matches your board layout requirements. Ensure the 500V DC rating and 0.33 µF capacitance align with your circuit design specifications. Check for any recent product discontinuation notices or lifecycle status updates from the manufacturer to ensure long-term availability.

Selection Notes

Select this component when axial mounting is preferred over panel mount alternatives for space-constrained designs. The 500V rating makes it suitable for higher voltage applications compared to lower-rated series. Consider the X7R temperature coefficient if operating conditions vary significantly. Compare physical dimensions against available clearance on the printed circuit board to ensure proper fitment during assembly.

Part Context

This component belongs to the Knowles Syfer feedthrough capacitor family, which specializes in EMI filtering solutions. These devices are distinct from standard surface-mount capacitors due to their coaxial construction and direct grounding capabilities. The SFJEC series specifically targets applications requiring reliable noise reduction in critical infrastructure and industrial electronics where signal purity is paramount.