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Product Details: Planar SMT Common Mode Chokes TPER19/25 Series

Common Mode Choke
August 15, 2025
Category Connection: Common Mode Choke
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Tags:
#common mode power line choke #common mode toroidal chokes #common mode inductor
Brief: Discover the TPER19/25 Series Planar SMT Common Mode Chokes, engineered for high-noise power systems with 39A rated current and 1500V isolation. Featuring ER19/ER25 planar cores, ultra-low DCR, and precision SRF control, these chokes are ideal for electric vehicle chargers and industrial inverters.
Related Product Features:
  • ER19 and ER25 planar cores with dimensions up to 30.5×27×18mm.
  • 39A rated current and 1500V isolation for robust performance.
  • Ultra-low DCR down to 1.4mΩ for minimal power loss.
  • Precision SRF control ranging from 0.95-2.0MHz.
  • Shielded SMT construction to minimize crosstalk.
  • RoHS/EIA481 compliant for automated assembly readiness.
  • Operating temperature range from -40℃ to +150℃.
  • Optimized for electric vehicle chargers and industrial inverters.
Faqs:
  • How does planar choke outperform toroidal cores?
    Planar chokes offer 30% lower profile, 50% faster assembly, and tighter SRF control compared to toroidal cores.
  • Can it replace power inductors in DC-DC circuits?
    No, it is designed for EMI suppression, not energy storage. Pair with power inductors for full EMC compliance.
  • Is thermal derating required at high ambient temperatures?
    Yes, max current is calculated as Rated current × [(150 - Ambient Temp)/50]. For example, 39A @25℃ reduces to 23.4A @120℃.
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