EMI / RFI Filters Shape and Dimensions TRANSFORMERS & COILS Unit:mm 240.5 30.0max 200.5 4.01 o0.8 200.5 24.5max *HF28H TYPE 30.0max 240.5 100.5 35.5max. *HF28V TYPE 130.5 30.0max. 4.01 o0.8 130.5 100.5 22.0max. HF28H / 28V This is a common-mode choke coil for noise prevention with windings on separated bobbins on a double-closed-magnetic-circuit ferrite core (see illustration) to ensure a higher inductance with a smaller size and a high impedance at high frequencies with compact size and low leakage flux. FEATURES: * Compact Size, Large Inductance * Excellent Frequency Characteristics * Low Magnetic Flux Leakage IMPEDANCE VS. FREQUENCY APPLICATIONS: * For line filter of switching power supplies * Eliminates incoming / leaking noise of TVs, VTRs/VCRs and audio equipment * For OA equipment, communications equipment and other electronic devices 1000 100 10 039009 1 016015 005625 0.1 0.01 0.1 1 10 100 Specifications Part No. HF28H/V-120005 HF28H/V-096006 HF28H/V-068007 HF28H/V-039009 HF28H/V-025010 HF28H/V-016015 HF28H/V-008020 HF28H/V-005625 HF28H/V-003330 Inductance difference (H) min. Inductance (mH) min. 120 96 68 39 25 16 8 5.6 3.3 2500 2000 1500 1000 500 350 200 150 100 DC resistance () max. 2.5 2 1.5 0.8 0.5 0.4 0.16 0.12 0.1 * Rated voltage: 250 VAC/DC * When refering to model number: "V" in square stands for vertical type, "H" for horizontal type * Test voltage: 2000 VAC, one minute between lines * Insulation resistance: at 500 VDC, more than 100M (between lines) * Thermal class: E(120C) B (130C) * Temperature range: -25C~TC (T=120-temp.rise) 63 Rated current (Aac) 0.5 0.6 0.7 0.9 1.0 1.5 2.0 2.5 3.0