Page 1 of 3 Delta Part No﹒︰SDER041H type Part Name︰Sealed Choke Sealed Choke Coil SDER041H type Features Low profile:4.0mm x 4.0mm x 1.8mm Low coil resistance with large currents. High magnetic shield construction should actualize high resolution for EMC protection. 100% lead (Pb) free meet RoHS standard Application Cellular phones, LCD displays, HDDs, DVCs, DSCs, PDAs etc.. Outline Dimensions W L Code Dimensions (mm) L 4.0 0.2 W 4.0 0.2 T 1.8 Max * Dimensions are of the case not including the T termination. For maximum overall dimensions including the termination, add 0.1mm. Note:This graph is in regard to outline dimensions spec. For outer appearance, please refer to actual product. Page 2 of 3 Marking The inductor is marked with a 3-digit code Example – – 10H 100 100 Recommend Land Pattern Dimensions The customer shall determine the land dimensions shown below after confirming and safety. B A C A 3.6 B 1.8 C 4.1 Unit : mm Page 3 of 3 Specifications Part Number SDER041H-2R2MS SDER041H-3R3MS SDER041H-4R7MS SDER041H-6R8MS SDER041H-8R2MS SDER041H-100MS SDER041H-150MS SDER041H-220MS SDER041H-330MS SDER041H-470MS L0 Inductance ( H ) @ (0A) Heat Rating Current DC Amps. Idc ( A ) Rdc ( m) Typical 2.2 3.3 4.7 6.8 8.2 10.0 15.0 22.0 33.0 47.0 35 45 69 90 105 134 185 250 405 495 Saturation Current DC Amps. Isat ( A ) Maximum Typical Maximum Typical Maximum 45 56 89 115 132 169 222 315 486 594 3.10 2.75 2.30 2.10 1.50 1.50 1.45 1.20 0.90 0.80 2.80 2.50 2.07 1.90 1.35 1.35 1.30 1.08 0.81 0.72 3.10 2.45 2.05 1.75 1.60 1.55 1.10 0.95 0.70 0.58 2.80 2.20 1.85 1.60 1.44 1.40 1.00 0.85 0.63 0.52 * :If you require another part number please contact with us. **:Inductance Tolerance 20% Note 1.: All test data is referenced to 25℃ ambient. Note 2.: Test Condition:100KHz, 1.0Vrms Note 3.: Idc : DC current (A) that will cause an approximate △T of 40℃ Note 4.: Isat : DC current (A) that will cause L0 to drop approximately 30% Note 5.: Operating Temperature Range -55℃ to + 125℃ Note 6.: The part temperature (ambient + temp rise) should not exceed 125℃ under the worst case operating conditions. Circuit design, component placement, PCB trace size and thickness, airflow and other cooling provision all affect the part temperature. Part temperature should be verified in the end application. Note 7.: The rated current as listed is either the saturation current or the heating current depending on which value is lower.