TDK Power Inductor Technical Data SLF6028 Series CONTENTS L-Q Frequency Characteristics DC Bias & Temperature Characteristics Temperature Characteristics Temperature Rise TDK CORPORATION Sep.2004 KY -1- C2520 TDK Power Inductor L-Q Frequency Characteristics SLF6028T-2R7M1R8-PF 25 SLF6028T-4R7M1R6-PF 50 50 50 40 40 40 15 30 30 30 10 20 20 20 10 10 10 0 100000 0 20 L 5 0 1 10 100 1000 10000 Q L(uH) Q L(uH) Q 1 10 Freq.(kHz) 1000 10000 0 100000 Freq.(kHz) SLF6028T-5R6M1R5-PF SLF6028T-6R8M1R5-PF 50 50 40 40 40 40 30 30 30 30 20 20 20 20 10 10 10 10 0 100000 0 0 1 10 100 1000 10000 Q 50 L(uH) 50 Q L(uH) 100 1 10 Freq.(kHz) 10000 0 100000 SLF6028T-150M1R0-PF 40 40 40 40 30 30 30 30 20 20 20 20 10 10 10 10 0 100000 0 0 1 10 100 1000 10000 1 Freq.(kHz) Sep.2004 KY 50 Q 50 L(uH) 50 Q L(uH) 1000 Freq.(kHz) SLF6028T-100M1R3-PF 50 100 10 100 1000 10000 0 100000 Freq.(kHz) -2- C2520 TDK Power Inductor L-Q Frequency Characteristics SLF6028T-220MR77-PF 30 50 40 80 40 30 60 30 20 40 20 10 20 10 0 100000 0 20 Q Q 100 Q L(uH) 40 SLF6028T-330MR69-PF 50 L(uH) 50 L 10 0 1 10 100 1000 10000 1 10 Freq.(kHz) 10000 0 100000 SLF6028T-680MR50-PF 200 50 80 40 160 40 60 30 120 30 40 20 80 20 20 10 40 10 0 100000 0 0 1 10 100 1000 10000 Q 50 L(uH) 100 Q L(uH) 1000 Freq.(kHz) SLF6028T-470MR59-PF 1 10 Freq.(kHz) 100 1000 10000 0 100000 Freq.(kHz) SLF6028T-820MR42-PF SLF6028T-101MR42-PF 160 40 160 40 120 30 120 30 80 20 80 20 40 10 40 10 0 100000 0 0 1 10 100 1000 10000 1 Freq.(kHz) Sep.2004 KY 50 Q 200 L(uH) 50 Q 200 L(uH) 100 10 100 1000 10000 0 100000 Freq.(kHz) -3- C2520 TDK Power Inductor L-Q Frequency Characteristics SLF6028T-151MR34-PF 50 40 400 40 300 30 300 30 200 20 200 20 10 100 10 0 100000 0 Q Q 100 L 0 1 10 100 1000 10000 Q 500 400 L(uH) SLF6028T-181MR31-PF 50 L(uH) 500 1 Freq.(kHz) 10 100 1000 10000 0 100000 Freq.(kHz) 50 400 40 300 30 200 20 100 10 Q L(uH) SLF6028T-221MR26-PF 500 0 1 10 100 1000 10000 0 100000 Freq.(kHz) Sep.2004 KY -4- C2520 TDK Power Inductor DC Bias & Temperature Characteristics SLF6028T-2R7M1R8-PF 3 Tem p. -40deg. -20 0 20 65 85 105 L(uH) 2 1 0 0.0 0.6 1.2 1.8 2.4 3.0 3.6 IDC(A) SLF6028T-4R7M1R6-PF 6 4 L(uH) Tem p. -40deg. -20 0 20 65 85 105 2 0 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 IDC(A) Sep.2004 KY -5- C2520 TDK Power Inductor DC Bias & Temperature Characteristics SLF6028T-5R6M1R5-PF 7 6 5 L(uH) Tem p. -40deg. -20 0 20 65 85 105 4 3 2 1 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 2.5 3.0 IDC(A) SLF6028T-6R8M1R5-PF 8 6 L(uH) Tem p. -40deg. -20 0 20 65 85 105 4 2 0 0.0 0.5 1.0 1.5 2.0 IDC(A) Sep.2004 KY -6- C2520 TDK Power Inductor DC Bias & Temperature Characteristics SLF6028T-100M1R3-PF 12 10 L(uH) 8 Tem p. -40deg. -20 0 20 65 85 105 6 4 2 0 0.0 0.4 0.8 1.2 1.6 2.0 2.4 IDC(A) SLF6028T-150M1R0-PF 20 16 L(uH) 12 Tem p. -40deg. -20 0 20 65 85 105 8 4 0 0.0 0.5 1.0 1.5 2.0 IDC(A) Sep.2004 KY -7- C2520 TDK Power Inductor DC Bias & Temperature Characteristics SLF6028T-220MR77-PF 25 20 Tem p. -40deg. -20 0 20 65 85 105 L(uH) 15 10 5 0 0.0 0.5 1.0 1.5 IDC(A) SLF6028T-330MR69-PF 40 30 L(uH) Tem p. -40deg. -20 0 20 65 85 105 20 10 0 0.0 0.5 1.0 1.5 IDC(A) Sep.2004 KY -8- C2520 TDK Power Inductor DC Bias & Temperature Characteristics SLF6028T-470MR59-PF 60 50 40 L(uH) Tem p. -40deg. -20 0 20 65 85 105 30 20 10 0 0.0 0.2 0.4 0.6 0.8 1.0 1.2 IDC(A) SLF6028T-680MR50-PF 80 60 L(uH) Tem p. -40deg. -20 0 20 65 85 105 40 20 0 0.0 0.2 0.4 0.6 0.8 1.0 IDC(A) Sep.2004 KY -9- C2520 TDK Power Inductor DC Bias & Temperature Characteristics SLF6028T-820MR42-PF 100 L(uH) 80 Tem p. -40deg. -20 0 20 65 85 105 60 40 20 0 0.0 0.2 0.4 0.6 0.8 IDC(A) SLF6028T-101MR42-PF 120 100 L(uH) 80 Tem p. -40deg. -20 0 20 65 85 105 60 40 20 0 0.0 0.2 0.4 0.6 0.8 IDC(A) Sep.2004 KY - 10 - C2520 TDK Power Inductor DC Bias & Temperature Characteristics SLF6028T-151MR34-PF 180 150 L(uH) 120 Tem p. -40deg. -20 0 20 65 85 105 90 60 30 0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 IDC(A) SLF6028T-181MR31-PF 200 150 L(uH) Tem p. -40deg. -20 0 20 65 85 105 100 50 0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 IDC(A) Sep.2004 KY - 11 - C2520 TDK Power Inductor DC Bias & Temperature Characteristics SLF6028T-221MR26-PF 240 200 Tem p. -40deg. -20 0 20 65 85 105 L(uH) 160 120 80 40 0 0.0 0.1 0.2 0.3 0.4 0.5 IDC(A) Sep.2004 KY - 12 - C2520 TDK Power Inductor Temperature Characteristics SLF6028T-2R7M1R6-PF 20 basis on L at 20degree basis on L at 20degree 15 10 L Change(%) L Change(%) 15 SLF6028T-4R7M1R6-PF 20 5 0 -5 -10 -15 10 5 0 -5 -10 -15 -20 -20 -40 -20 0 20 40 60 80 100 -40 -20 0 T emperature(degree) SLF6028T-5R6M1R5-PF 20 basis on L at 20degree 5 0 -5 -10 -15 80 100 80 100 5 0 -5 -10 -20 -20 0 20 40 60 80 100 -40 -20 0 20 40 60 T emperature(degree) SLF6028T-100M1R3-PF SLF6028T-150M1R0-PF 20 basis on L at 20degree basis on L at 20degree 15 10 L Change(%) L Change(%) 100 -15 20 5 0 -5 -10 -15 -20 -40 80 10 T emperature(degree) 15 60 basis on L at 20degree 15 10 -20 -40 40 SLF6028T-6R8M1R5-PF 20 L Change(%) L Change(%) 15 20 T emperature(degree) 10 5 0 -5 -10 -15 -20 -20 0 20 40 60 80 100 -40 T emperature(degree) Sep.2004 KY -20 0 20 40 60 T emperature(degree) - 13 - C2520 TDK Power Inductor Temperature Characteristics SLF6028T-220MR77-PF 20 basis on L at 20degree basis on L at 20degree 15 10 L Change(%) L Change(%) 15 SLF6028T-330MR69-PF 20 5 0 -5 -10 -15 10 5 0 -5 -10 -15 -20 -40 -20 -20 0 20 40 60 80 100 -40 -20 0 T emperature(degree) SLF6028T-470MR59-PF 20 L Change(%) L Change(%) 60 80 100 80 100 80 100 basis on L at 20degree 15 10 5 0 -5 -10 -15 10 5 0 -5 -10 -15 -20 -40 -20 -20 0 20 40 60 80 100 -40 -20 0 T emperature(degree) 40 60 SLF6028T-101MR42-PF 20 basis on L at 20degree 15 20 T emperature(degree) SLF6028T-820MR42-PF 20 15 10 L Change(%) L Change(%) 40 SLF6028T-680MR50-PF 20 basis on L at 20degree 15 20 T emperature(degree) 5 0 -5 -10 -15 basis on L at 20degree 10 5 0 -5 -10 -15 -20 -40 -20 0 20 40 60 80 100 -20 -40 T emperature(degree) Sep.2004 KY -20 0 20 40 60 T emperature(degree) - 14 - C2520 TDK Power Inductor Temperature Characteristics SLF6028T-151MR34-PF 20 basis on L at 20degree 15 10 L Change(%) L Change(%) 15 5 0 -5 -10 -15 -20 -40 5 0 -5 -10 -15 -20 0 20 40 60 80 100 -20 -40 -20 0 20 40 60 80 100 T emperature(degree) SLF6028T-221MR26-PF 20 L Change(%) basis on L at 20degree 10 T emperature(degree) 15 SLF6028T-181MR31-PF 20 basis on L at 20degree 10 5 0 -5 -10 -15 -20 -40 -20 0 20 40 60 80 100 T emperature(degree) Sep.2004 KY - 15 - C2520 TDK Power Inductor Temperature Rise SLF6028T-2R7M1R8-PF SLF6028T-4R7M1R6-PF 40 Temperature Rise(degree) Temperature Rise(degree) 40 30 20 10 0 30 20 10 0 0 1 2 3 4 0 1 2 IDC(A) SLF6028T-5R6M1R5-PF 40 Temperature Rise(degree) Temperature Rise(degree) 4 SLF6028T-6R8M1R5-PF 40 30 20 10 0 30 20 10 0 0 1 2 3 0 1 2 IDC(A) 3 IDC(A) SLF6028T-100M1R3-PF SLF6028T-150M1R0-PF 40 Temperature Rise(degree) 40 Temperature Rise(degree) 3 IDC(A) 30 20 10 0 30 20 10 0 0 1 2 3 0.0 IDC(A) Sep.2004 KY 0.5 1.0 1.5 2.0 2.5 IDC(A) - 16 - C2520 TDK Power Inductor Temperature Rise SLF6028T-220MR77-PF SLF6028T-330MR69-PF 40 Temperature Rise(degree) Temperature Rise(degree) 40 30 20 10 0 30 20 10 0 0.0 0.5 1.0 1.5 2.0 0.0 0.4 0.8 IDC(A) SLF6028T-470MR59-PF 40 Temperature Rise(degree) Temperature Rise(degree) 1.6 SLF6028T-680MR50-PF 40 30 20 10 0 30 20 10 0 0.0 0.5 1.0 1.5 0.0 0.4 0.8 IDC(A) 1.2 IDC(A) SLF6028T-820MR42-PF SLF6028T-101MR42-PF 40 Temperature Rise(degree) 40 Temperature Rise(degree) 1.2 IDC(A) 30 20 10 0 30 20 10 0 0.0 0.4 0.8 1.2 0.0 IDC(A) Sep.2004 KY 0.2 0.4 0.6 0.8 1.0 IDC(A) - 17 - C2520 TDK Power Inductor Temperature Rise SLF6028T-151MR34-PF SLF6028T-181MR31-PF 40 Temperature Rise(degree) Temperature Rise(degree) 40 30 20 10 0 30 20 10 0 0.0 0.2 0.4 0.6 0.8 0.0 IDC(A) 0.1 0.2 0.3 0.4 0.5 0.6 0.7 IDC(A) SLF6028T-221MR26-PF Temperature Rise(degree) 40 30 20 10 0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 IDC(A) Sep.2004 KY - 18 - C2520