Ferrite Inductors
DEM3512C/DEM3518C
Inductance Range: 0.68~22 H (DEM3512C), 0.56~22 H (DEM3518C) Recommended patterns
DEM3512C
DEM3518C (Unit: mm)
(Unit: mm)
*DEM3512C: 1.2mm Max.
DEM3518C: 1.8mm Max.
FEATURES
Low profile (3.5 3.7mm square, 1.2 and 1.8mm Max. (3.5 3.7mm, 1.21.8mm Max.)
height).
Magnetically shielded construction and low DC resistance. DC-DC
Ideal for a variety of DC-DC converter inductor applications. RoHS
RoHS compliant.
STANDARD PART NUMBERS
TYPE DEM3512C (Quantity/reel; 2,000 PCS)
(1) (2) (3) (3)
Inductance
Temperature
(3)
DC
(1) Decrease Current (3)
Inductance Rise Current
Part Tolerance (2)
Resistance
(A) Max. (Typ.)
Number (H) (%) T=40C
L
(m) Max. (Typ.)
=30%
(A) Max. (Typ.)
L
1229AS-H-R68N=P3 0.68 30 52 (43) 2.50 (3.30) 2.25 (2.65)
1.0 30 65 (54) 2.05 (2.75) 1.85 (2.20)
1229AS-H-1R0N=P3
1.5 30 75 (62) 1.65 (2.20) 1.80 (2.10)
1229AS-H-1R5N=P3
1229AS-H-2R0M=P3 2.0 20 88 (73) 1.50 (2.00) 1.70 (2.00)
1229AS-H-3R3M=P3 3.3 20 96 (80) 1.30 (1.75) 1.65 (1.95)
4.7 20 126 (105) 1.10 (1.45) 1.35 (1.60)
1229AS-H-4R7M=P3
6.8 20 192 (160) 0.90 (1.20) 1.20 (1.40)
1229AS-H-6R8M=P3
1229AS-H-100M=P3 10 20 288 (240) 0.75 (1.00) 0.85 (1.00)
1229AS-H-120M=P3 12 20 336 (280) 0.65 (0.87) 0.79 (0.93)
15 20 408 (340) 0.59 (0.78) 0.72 (0.84)
1229AS-H-150M=P3
22 20 672 (560) 0.50 (0.66) 0.53 (0.62)
1229AS-H-220M=P3
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Ferrite Inductors
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STANDARD PART NUMBERS
TYPE DEM3518C (Quantity/reel; 2,000 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
(m) Max. (Typ.)
=30%
(A) Max. (Typ.)
L
0.56 30 29 (24) 3.30 (4.40) 3.40 (4.00)
1231AS-H-R56N=P3
1231AS-H-1R2N=P3 1.2 30 36 (30) 2.40 (3.20) 2.90 (3.40)
1.5 30 42 (35) 2.10 (2.75) 2.70 (3.20)
1231AS-H-1R5N=P3
2.2 20 48 (40) 1.90 (2.55) 2.55 (3.00)
1231AS-H-2R2M=P3
1231AS-H-3R3M=P3 3.3 20 60 (50) 1.60 (2.10) 2.25 (2.70)
1231AS-H-4R7M=P3 4.7 20 72 (60) 1.35 (1.75) 2.00 (2.45)
6.4 20 102 (85) 1.15 (1.50) 1.65 (2.00)
1231AS-H-6R4M=P3
1231AS-H-100M=P3 10 20 174 (145) 0.90 (1.20) 1.25 (1.50)
12 20 186 (155) 0.85 (1.15) 1.20 (1.45)
1231AS-H-120M=P3
1231AS-H-150M=P3 15 20 222 (185) 0.80 (1.05) 1.10 (1.30)
1231AS-H-220M=P3 22 20 342 (285) 0.65 (0.84) 0.88 (1.05)
(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 30% (3)
inductance reduction from the initial value, or coil temperature to 30
rise by 40C, whichever is smaller. (Reference ambient 40C20C
temperature 20C)