Feedthrough Capacitors FN751X

The FN751X AC Feedthrough Capacitor offers high insertion loss across a broad frequency range, from tens of kHz up to the GHz region. Its construction provides superior suppression performance compared to conventional two-wire capacitors. Designed for up to 300 VAC 50/60 Hz operation, these capacitors feature very low internal series inductance, a high self-resonant frequency, and a self-healing dielectric, ensuring high quality and reliability. They are suitable for through-bulkhead mounting with anti-twist protection. Custom-specific or dual-versions are available upon request.

Product Attributes

• Brand: Schaffner
• Certifications: IEC/EN 60384-14, Class Y2

Technical Specifications

Key Specifications

• Maximum continuous operating voltage: 250 VAC, 50/60 Hz (UL); 300 VAC, 50/60 Hz (ENEC)
• Maximum DC voltage: 1000 VDC
• High potential test voltage: 3000 VDC for 2 sec
• Insulation resistance: <0.33 F, R >1500 M; >0.33 F, >5000 s (100VDC after 60 sec)
• Temperature range (operation and storage): -40C to +100C (40/100/21)
• Flammability: UL 94 V-2 or better
• MTBF @ 60C/300 V (Mil-HB-217F): 200 A: >850,000 hours; <200 A: >1,600,000 hours
• Operating frequency: DC to 60 Hz

Typical Applications

• Power line filter for 110/240 VAC power lines
• Increasing system and information security
• Power supplies
• Switching and cellular equipment
• Computer servers
• UPS power supplies
• Medical equipment
• Shielded rooms