DSF Suppression Chokes www.schurter.com/pg81_82 Storage Choke, flat design Description - Storage choke THT-terminals Inductor horizontally positioned in housing Constant inductance at high alternating field modulation and large DC magnetization - Reduced magnetic reversal - SMD version on request Standards Applications - Storage of energy in switched power supplies Switch-mode Chopper amplifiers DC drives and stepper motor controls References General Product Information Weblinks Approvals, RoHS, CHINA-RoHS, e-Store, Distributor-Stock-Check - EN 60938 Technical Data Rated voltage Rated Current Rated inductance Power Operating Frequency Terminal technic Weight Material: Housing Sealing Compound up to 600 VDC 0.4 - 6.3 A @ Ta 70 °C 0.011 - 3.7 mH, Tol. ±15% up to 1 MHz THT 7 - 18 g UL 94V-0 UL 94V-0 Isolation Voltage Climatic Category Allowable Operation Temp. Dimensions Case 04-1 2 kV eff., winding to ambient 40/125/21 acc. to IEC 60068-1 -40 °C to 125 °C Case 15-1 4 1 10 ±0.2 EMC Products 28.3 max. 25 ±0.2 18.2 max. 2 0.6 x 0.88 0 3.5 -0.5 3 4 15 ±0.2 0.6 x 0.88 3 27.4 max. 16.5 ±0.2 2.0 17.8 max. 12.4 ±0.2 2.2 0 3.5 -0.5 2 1 15 ±0.2 DSF Suppression Chokes www.schurter.com/pg81_82 Diagrams Application in DC-DC Converter 1) 2) 1) DC-Input unregulated 2) DC-Output regulated Derating Curves Inductance variation as function of the magnetizing current Variants In [A] Ln [mH] Rcu [mΩ] fRES [MHz] Weight [g] Housing Packing unit [pcs.] Order Number 0.4 1.1 0.6 0.5 700 - 7 04-1 45 DSF-18-0001 360 2.5 7 04-1 45 1.2 DSF-18-0002 0.125 90 6.5 7 04-1 45 DSF-18-0003 2 0.045 32 12 7 04-1 45 DSF-18-0005 4 0.011 8 32 7 04-1 45 DSF-18-0006 0.45 3.7 1900 0.6 18 15-1 40 DSF-28-0001 0.63 1.8 900 1 18 15-1 40 DSF-28-0002 1 0.75 360 1.8 18 15-1 40 DSF-28-0003 1.4 0.38 160 - 18 15-1 40 DSF-28-0004 1.8 0.23 125 3.5 18 15-1 40 DSF-28-0005 3.15 0.075 45 7 18 15-1 40 DSF-28-0006 4.5 0.037 20 10 18 15-1 40 DSF-28-0007 6.3 0.018 10 18 18 15-1 40 DSF-28-0008 The specifications, descriptions and illustrations indicated in this document are based on EMC Products current information. All content is subject to modifications and amendments.