Ferrite Inductors
DS73LC / DS74LC
Inductance Range: 1.0~220 H (DS73LC ),
Recommended patterns
2.4~470 H (DS74LC)
DS73LC DS74LC
(Unit: mm)
(Unit: mm)
* : DS73LC ; 3.0mm Max.
DS74LC ; 4.0mm Max.
FEATURES
Low-profile (7.6mm Max. square, 3.0 and 4.0mm Max. 7.6mmMax. 3.04.0mm Max.
height).
Magnetically shielded construction
Suitable for large current. DC-DC
Ideal for a variety of DC-DC converter inductor applications. RoHS
RoHS compliant.
STANDARD PART NUMBERS
TYPE DS73LC (Quantity/reel; 1000 PCS)
(1) (2) (3) (3)
Inductance
Temperature
(3)
DC
(1) (3)
Decrease Current
Part Inductance Tolerance Rise Current
(2)
Resistance
(A) Max. (Typ.)
Number (H) (%) T=40C
L L
(m) Max. (Typ.)
=10% =30%
L L (A) Max. (Typ.)
B1079AS-1R0N=P3 1.0 30 11 (9.3) 5.25 (7.00) 6.75 (9.00) 6.50 (7.60)
B1079AS-1R5N=P3 1.5 30 13 (11) 4.35 (5.80) 5.60 (7.50) 6.00 (7.00)
B1079AS-2R0N=P3 2.0 30 19 (16) 3.60 (4.80) 4.70 (6.30) 4.60 (5.40)
B1079AS-2R7N=P3 2.7 30 25 (21) 3.15 (4.20) 4.05 (5.40) 3.80 (4.50)
B1079AS-3R3N=P3 3.3 30 29 (24) 2.75 (3.70) 3.60 (4.80) 3.70 (4.40)
B1079AS-3R9N=P3 3.9 30 32 (27) 2.55 (3.40) 3.30 (4.40) 3.30 (3.90)
B1079AS-4R7N=P3 4.7 30 40 (33) 2.30 (3.10) 3.00 (4.00) 3.00 (3.50)
B1079AS-6R8N=P3 6.8 30 54 (45) 1.95 (2.60) 2.50 (3.30) 2.30 (2.70)
B1079AS-100M=P3 10 20 77 (64) 1.60 (2.10) 2.00 (2.70) 2.00 (2.40)
B1079AS-150M=P3 15 20 114 (95) 1.25 (1.70) 1.65 (2.20) 1.45 (1.70)
B1079AS-220M=P3 22 20 150 (125) 1.05 (1.40) 1.40 (1.90) 1.35 (1.60)
B1079AS-330M=P3 33 20 228 (190) 0.90 (1.20) 1.10 (1.50) 1.10 (1.30)
B1079AS-470M=P3 47 20 300 (250) 0.75 (1.00) 1.00 (1.30) 0.87 (1.00)
B1079AS-560M=P3 56 20 348 (290) 0.70 (0.93) 0.91 (1.21) 0.80 (0.94)
B1079AS-680M=P3 68 20 492 (410) 0.62 (0.83) 0.80 (1.07) 0.70 (0.83)
B1079AS-101M=P3 100 20 696 (580) 0.50 (0.67) 0.65 (0.86) 0.54 (0.68)
B1079AS-151M=P3 150 20 1188 (990) 0.41 (0.54) 0.53 (0.70) 0.47 (0.56)
B1079AS-221M=P3 220 20 1512 (1260) 0.35 (0.46) 0.44 (0.59) 0.36 (0.42)
continued on next page
Ferrite Inductors
continued from previous page
STANDARD PART NUMBERS
TYPE DS74LC (Quantity/reel; 1000 PCS)
(1) (2) (3) (3)
Inductance
Temperature
(3)
DC
(1) (3)
Decrease Current
Part Inductance Tolerance Rise Current
(2)
Resistance
(A) Max. (Typ.)
Number (H) (%) T=40C
L L
(m) Max. (Typ.)
=10% =30%
L L (A) Max. (Typ.)
B1077AS-2R4N=P3 2.4 30 16 (13) 3.80 (5.00) 5.00 (6.70) 4.50 (5.30)
B1077AS-3R0N=P3 3.0 30 20 (17) 3.30 (4.40) 4.40 (5.90) 4.10 (4.90)
B1077AS-4R7N=P3 4.7 30 34 (28) 2.60 (3.50) 3.45 (4.60) 3.00 (3.50)
B1077AS-6R8N=P3 6.8 30 40 (33) 2.30 (3.10) 3.10 (4.10) 2.70 (3.20)
B1077AS-100M=P3 10 20 58 (48) 1.80 (2.40) 2.40 (3.20) 2.20 (2.60)
B1077AS-150M=P3 15 20 80 (66) 1.50 (2.00) 1.95 (2.60) 2.00 (2.40)
B1077AS-220M=P3 22 20 98 (82) 1.20 (1.60) 1.60 (2.10) 1.70 (2.10)
B1077AS-330M=P3 33 20 165 (135) 1.00 (1.40) 1.35 (1.80) 1.30 (1.50)
B1077AS-470M=P3 47 20 230 (190) 0.86 (1.10) 1.10 (1.50) 1.10 (1.30)
B1077AS-680M=P3 68 20 305 (255) 0.71 (0.94) 0.94 (1.25) 0.90 (1.10)
B1077AS-101M=P3 100 20 445 (370) 0.59 (0.79) 0.80 (1.06) 0.75 (0.88)
B1077AS-151M=P3 150 20 835 (695) 0.46 (0.61) 0.61 (0.81) 0.52 (0.61)
B1077AS-221M=P3 220 20 1150 (945) 0.39 (0.52) 0.52 (0.69) 0.44 (0.52)
B1077AS-331M=P3 330 20 1900 (1550) 0.32 (0.42) 0.44 (0.58) 0.34 (0.41)
B1077AS-471M=P3 470 20 2390 (1990) 0.26 (0.35) 0.35 (0.46) 0.31 (0.37)
(1) Inductance is measured with a LCR meter 4284A (Agilent (1) LCR4284AAgilent Technologies
Technologies) or equivalent.
Test frequency at 100kHz 100kHz
(2) DC resistance is measured with 34420A (Agilent Technologies) or (2) 34420AAgilent Technologies3541
3541(HIOKI). (Reference ambient temperature 25C) HIOKI25C
(3) Maximum allowable DC current is that which causes a 10% (3)
inductance reduction from the initial value, or coil temperature to 10
rise by 40C, whichever is smaller. (Reference ambient 40C20C
temperature 20C)