SMD Power Inductors and Transformers 8409-XX INDUCTORS: low inductance with high current when wired in parallel or higher inductance with lower current when wired in series TRANSFORMERS: (1:1) electrical isolation and a wide voltage transformation • Extended temperature range –40°C to +85°C • Isolation voltage: 300 Vdc MECHANICAL AND SCHEMATIC (All dimensions in inches) SUGGESTED PAD LAYOUT SCHEMATICS ELECTRICAL SPECIFICATIONS @ 25˚C ISSUE: B 09/05/02 8409 Parallel Ratings Part Number Rated Inductance (µH) 8409-01 8409-02 8409-03 8409-04 8409-05 8409-06 8409-07 8409-08 8409-09 8409-10 8409-11 8409-12 8409-13 8409-14 8409-15 8409-16 8409-17 0.33 0.68 1.0 2.0 5.0 8.0 10.0 15.0 20.0 25.0 33.0 50.0 68.0 100.0 150.0 200.0 300.0 OCL1 Nominal ±25% (µH) 0.284 0.675 1.26 1.98 5.06 7.90 11.38 15.48 20.22 25.60 34.84 49.38 66.44 102.38 152.9 197.5 303.7 Series Ratings Isat.2 (A) Irms.3 (A) DCR4 @20˚C (Ω typ.) 18.8 12.5 9.38 7.50 4.69 3.75 3.13 2.68 2.34 2.08 1.79 1.50 1.29 1.04 0.85 0.75 0.60 10.9 9.4 8.22 6.74 4.34 3.50 2.89 2.69 2.24 1.89 1.56 1.28 1.07 0.75 0.68 0.64 0.58 0.0033 0.0045 0.0058 0.0090 0.021 0.032 0.047 0.054 0.078 0.111 0.162 0.240 0.342 0.695 0.842 0.950 1.174 1. Measured @ 100kHz, 0.250Vrms, 0.0Adc Parallel (1,4 – 3,2); Series (1–3) tie (2–4) 2. Peak current for approximately 30% roll-off An ISO 9001 Registered Company OCL1 Nominal ±25% (µH) 1.14 2.70 5.06 7.90 20.22 31.60 45.50 61.94 80.90 102.38 139.4 197.5 265.8 409.5 611.8 790.0 1215 Isat.2 (A) Irms.3 (A) DCR4 @20˚C (Ω typ.) 9.38 6.25 4.69 3.75 2.34 1.88 1.56 1.34 1.17 1.04 0.89 0.75 0.65 0.52 0.43 0.38 0.30 5.47 4.68 4.11 3.37 2.17 1.75 1.45 1.35 1.12 0.94 0.78 0.64 0.54 0.38 0.34 0.32 0.29 0.0132 0.0180 0.0233 0.035 0.084 0.129 0.188 0.218 0.313 0.443 0.649 0.961 1.367 2.778 3.366 3.800 4.697 3. RMS current, delta temp. of 40°C ambient temperature of 85°C 4. Values @ 20°C, Maximum DCR is +15% of typical value 5. Turns Ratio: (1-2):(4-3) 1:1 229 Colonnade Road, Nepean, Ontario, Canada K2E 7K3 Tel: (613) 226-1626 Fax: (613) 226-7124 www.filtran.com