DFK Suppression Chokes www.schurter.com/pg81_82 Magnetically Compensated Choke, 1- and 3-phase Description Applications -Current compensated choke -1‑ or 3‑phase choke -THT terminals or wire leads -Flange for mounting onto printed circuit board -Fully potted resign -Attenuation of common mode interferences -May also be used in direct current applications where magnetic compensation is required -Designed for 230/400 VAC applications Standards General Product Information References -EN 60938 -IEC 60950 -T.2 -VDE 0565 Weblinks Approvals, RoHS, CHINA-RoHS, e-Store, Distributor-Stock-Check Technical Data Rated voltage Rated Current Rated inductance Power Operating Frequency Terminal technic Weight Material: Housing Sealing Compound up to 440 VAC 0.5 - 15 A @ Ta 40 °C 1 - 20 mH, Tol. -30% +50% 50 - 400 Hz THT, Flexible wire 6 - 163 g UL 94V-0 UL 94V-0 Dimensions Case 03 Test Voltage Isolation Voltage Climatic Category Allowable Operation Temp. 1.8 kV, 50 Hz, 1 min, winding to winding 2 kV eff., winding to ambient 25/100/21 acc. to IEC 60068-1 -25 °C to 100 °C Case 07 15 = 20 15 = 17.5 = = 12.5 2 15 12.5 16.5 10 4.5 ±0.5 20 EMC Products 15 4.5 ±0.5 DFK Suppression Chokes www.schurter.com/pg81_82 Case 11 Case 12 = 25 17.5 20 = 25 = = 15 2.5 17.5 15 25 4.5 ±0.5 15 Case 20 20 25 Case 25-2 40 22.5 30.8 4.8 40 = 32 27.5 33 ø8 = 32 27.5 4.5 ±0.5 15 33 Case 29-4 48 30.8 5.8 150 10...20 48 38.2 ø8 38.2 3.1 4.5 ±0.5 EMC Products 3.1 150 10...20 DFK Suppression Chokes www.schurter.com/pg81_82 Diagrams LN: Radio interference suppression choke (magnetically compensated DF) LS: Radio interference suppression choke (magnetically saturated DFS/DFL) Variants In [A] Ln [mH] Rcu [mΩ] fRES [MHz] Copper ø [mm] Weight [g] Housing Packing Order unit Number 0.5 10 900 0.5 0.5 6 03 100 DFK- 1 10 500 0.7 0.6 12 07 150 DFK-20- 1 20 500 0.5 0.6 12 07 150 DFK-20- 1 10 510 0.5 0.6 18 11 50 DFK-25- 2 10 250 0.5 0.6 18 12 50 DFK-25- 2 20 250 0.3 0.6 37 20 45 DFK-33- 3 10 150 0.38 0.6 37 20 45 DFK-33- 6 4 27 0.4 - 127 25-2 10 DFK-40- 10 2 9 1.45 - 127 25-2 10 DFK-40- 15 1 10 1.45 2.5 x 2.5 127 25-2 10 DFK-40- 6 4 x 1.5 20 0.2 1.5 x 1.5 163 29-4 10 DFK-48- The specifications, descriptions and illustrations indicated in this document are based on EMC Products current information. All content is subject to modifications and amendments.