Description
• Six sizes of shielded drum core inductors with low profiles (as low as 1.0mm) and high power density • Inductance range from .47uH to 1000uH
• Current range from 6.00 to 0.088 Amps
• Ferrite shielded, low EMI
Applications
• Digital cameras, CD players, cellular phones, and PDAs • PCMCIA cards
• GPS systems
Environmental Data
• Storage temperature range:-40C to +125C
• Operating ambient temperature range:-40C to +85C (range is application specific).T emperature ri is approximately 40C at rated rms current
• Infrared reflow temperature:+240C for 30 conds maximum Packaging
• Supplied in tape and reel packaging, 3800 (SD10, SD12 and SD18), 2900 (SD20 and SD25), and 3500 (SD52)
per reel
SD Series
High Power Density,
Low Profile,
Shielded Inductors
(1) Open Circuit Inductance T est Parameters:100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ∆T of 40°C without core loss.It is
recommended that the temperature of the part not exceed 125°C. (3) Peak current for approximate 30% roll off at 20°C.(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
generate a core loss equal to 10% of the total loss for 40°C temperature ri.
Part Number Rated OCL (1)Part Irms (2)Isat (3)DCR (4)Volt Inductance+/-20%Marking Amperes Amperes(Ω)u-c (µH)(µH)Typ.Typ. SD10-R470.4700.453A 2.59 3.540.0249 2.1 SD10-1R0 1.00 1.119B 1.93 2.250.0448 3.3 SD10-1R5 1.50 1.563C 1.60 1.910.0653 3.9
SD10-4R7 4.70 4.893F 1.04 1.080.1535 6.9 SD10-6R2 6.20 6.743G0.940.920.18708.1 SD10-8
R28.208.889H0.8000.8000.26079.3 SD10-10010.010.07J0.7600.7520.28889.9 SD10-15015.015.55K0.6130.6050.442912.3 SD10-22022.022.21L0.4980.5060.671814.7 SD10-33033.032.20M0.4120.4200.980717.7
SD10-68068.070.01O0.3010.285 1.8426.1 SD10-82082.083.48P0.2580.261 2.5028.5 SD10-101100102.0Q0.2250.236 3.2931.5 SD10-151150149.2R0.2000.195 4.1538.1 SD10-221220222.2S0.1610.160 6.4146.5 SD10-331330330.4T0.1300.1319.8356.7 SD10-471470468.3U0.1170.11012.1067.5 SD12-R470.4700.490A 3.19 3.860.0246 2.84 SD12-1R2 1.20 1.21B 2.62 2.450.0366 4.47 SD12-1R5 1.50 1.69C 2.19 2.080.0521 5.28 SD12-2R2 2.20 2.25D 1.83 1.800.0747 6.09 SD12-3R3 3.30 3.61E 1.55 1.420.10437.71 SD12-4R7 4.70 4.41F 1.46 1.290.11778.53 SD12-6R2 6.20 6.25G 1.21 1.080.169910.15 SD12-8R28.208.41H 1.020.9310.239911.77
SD12-22022.022.09L0.6280.5740.633819.08 SD12-33033.032.49M0.5190.4740.928923.14 SD12-47047.047.61N0.4280.391 1.3728.01 SD12-68068.068.89O0.3410.325 2.1633.70 SD12-82082.082.81P0.3260.297 2.3636.95 SD12-10110098.0Q0.3080.273 2.6440.19 SD12-151150151.3R0.2510.220 3.9649.94
(1) Open Circuit Inductance T est Parameters:100KHz, 0.25Vrms, 0.0Adc.(2) RMS current for an approximate ∆T of 40°C without core loss.It is recommended that the temperature of the part not exceed 125°C.(3) Peak current for approximate 30% roll off at 20°C.
(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to generate a core loss equal to 10% of the total loss for 40°C temperature ri.
Part Number Rated OCL (1)Part Irms (2)Isat (3)DCR (4)Volt Inductance
+/-20%Marking Amperes Amperes (Ω)u-c (µH)(µH)Typ.Typ.SD12-331330334.9T 0.1860.1487.2574.30SD12-471470462.3U 0.1670.1268.9587.29SD12-681680670.8V 0.1490.10411.30105SD12-821820800.9W 0.1290.09514.93115SD12-1021000992.3X 0.1210.08617.20128SD18-R470.470.49A 3.58 4.630.0201 2.35SD18-R820.820.81B 3.24 3.600.0247 3.02SD18-1R5 1.50 1.69D 2.73 2.490.0345 4.37SD18-2R2 2.20 2.25E 2.55 2.160.0398 5.04SD18-3R3 3.30 3.61F 2.07 1.710.0605 6.38SD18-4R7 4.70 4.41G 1.77 1.540.08247.06SD18-6R2 6.20 6.25H 1.61 1.300.10008.40SD18-8R28.208.41J 1.38 1.120.13519.74SD18-10010.010.89K 1.280.9820.158411.09SD18-22022.022.09M 0.8760.6890.3
36615.79SD18-33033.032.49N 0.7150.5680.505719.15SD18-47047.047.61O 0.5780.4700.773223.18SD18-68068.068.89P 0.5140.3900.979827.89SD18-82082.082.81Q 0.4460.356 1.3030.58SD18-101100102.01R 0.4190.321 1.4733.94SD18-151150151.29S 0.3450.263 2.1841.33SD18-221220222.01T 0.2960.217 2.9550.06SD18-471470479.61V 0.2010.148 6.3973.58SD18-681680681.21W 0.1670.1249.2887.70SD18-821820823.69X 0.1450.11312.3596.43SD18-10210001004Y 0.1360.10214.01107SD20-R470.470.490A 3.59 4.000.0200 2.28SD20-1R2 1.20 1.21B 3.07 2.550.0275 3.58SD20-1R5 1.50 1.69C 2.88 2.150.0312 4.23SD20-3R3 3.30 3.61E 2.17 1.470.0547 6.18SD20-4R7 4.70 4.41F 2.05 1.330.0612 6.83SD20-6R2 6.20 6.25G 1.89 1.120.07208.13SD20-8R28.208.41H 1.610.9660.10009.43SD20-10010.09.61J 1.530.9030.110010.08SD20-15015.015.21K 1.250.7180.165512.68SD20-22022.022.09L 1.120.5960.205315.28SD20-47047.047.61N 0.7450.4060.465022.43SD20-68068.068.89O 0.6100.3370.694726.98SD20-82082.082.81P 0.5760.3080.778529.58SD20-10110098.01Q 0.4950.283 1.0632.18SD20-151150151.3R 0.4350.228 1.3739.98SD20-221220222.0S 0.3560.188 2.0448.43SD20-331330327.6T 0.2940.155 2.9958.83SD20-471470470.9U 0.2630.129 3.7470.53SD20-821820823.7W 0.2040.098 6.2293.28SD20-10210001004.9X 0.1720.0888.73103SD25-R470.470.466A 3.88 6.000.0177 2.13SD25-R820.820.770B 3.58 4.670.0208 2.74SD25-1R2 1.20 1.15C 3.33 3.810.0240 3.34SD25-1R5 1.50 1.61D 3.12 3.230.0274 3.95SD25-2R2
2.20
2.14
E
2.93
2.80
0.0311
4.56
SD Series
High Power Density,
Low Profile,
Shielded Inductors
Mechanical Diagrams TOP VIEW
BOTTOM VIEW
RECOMMENDED PCB LAYOUT
SCHEMATIC
2
1
5.2Max
5.2Max a
HT
1.5 Typ.
Ref.
1
2
SIDE VIEW
Pin #1identifier
Part marking
(Note A)
2
1
R2.250
2.9755.950
2.975
24 PAD LAYOUT
R2.250
5.959
1.0
2.97525.15
2.575
22 PAD LAYOUT
5.9509
(e chart below)
Part Number Rated OCL (1)Part Irms (2)Isat (3)DCR (4)Volt Inductance
+/-20%Marking Amperes Amperes (Ω)u-c (µH)(µH)Typ.Typ.SD25-3R3 3.30 3.43F 2.64 2.210.0384 5.78SD25-4R7 4.70 5.03G 2.39 1.830.0467 6.99SD25-6R8 6.80 6.93H 2.19 1.560.05568.21SD25-8R28.207.99J 1.92 1.450.07248.82SD25-10010.010.35K 1.80 1.270.082410.03SD25-150
15.014.45L 1.67 1.080.095611.86SD25-22022.022.81M 1.340.8570.147814.90SD25-33033.033.07N 1.110.7110.214917.94SD25-47047.047.89O 0.9190.5920.315621.58SD25-68068.068.64P 0.7410.4820.485025.84SD25-82082.082.17Q 0.7130.4410.524228.27SD25-101100100.79R 0.6700.3980.593731.31SD25-151150148.4S 0.5530.3280.872338.00SD25-221220222.4T 0.4460.268 1.3446.51SD25-331330332.2U 0.3590.219 2.0756.85SD25-471470472.4V 0.2930.184 3.1067.79SD25-681680677.2W 0.2620.154 3.8881.17SD25-821820826.7X 0.2300.139 5.0489.68SD25-102
1000
1003.4
Y
0.216
0.126
5.70
98.80
Series HT SD10 1.0mm max SD12 1.2mm max SD18 1.8mm max SD20 2.0mm max SD25 2.5mm max
(1) Open Circuit Inductance T est Parameters:100KHz, 0.25Vrms, 0.0Adc.(2) RMS current for an approximate ∆T of 40°C without core loss.It is recommended that the temperature of the part not exceed 125°C.(3) Peak current for approximate 30% roll off at 20°C.
(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to generate a core loss equal to 10% of the total loss for 40°C temperature ri.
SD Series
High Power Density,
Low Profile,Shielded Inductors
SD Series
A) Part Marking:Line 1:(1st digit indicates the inductance value per part marking designator in chart above)
(2nd digit is a bi-weekly production date code)(3rd digit is the last digit of the year produced)Line 2:12 (indicates the product size code)
Direction of feed
SECTION A-A
SD20/25 Series
Dimensions are in millimeters.
Direction of feed
SD12/18 Series
Packaging Information ACTUAL SIZE
SD12ACTUAL SIZE
SD18
ACTUAL SIZE
SD20ACTUAL SIZE
SD25
SD Series
High Power Density,
Low Profile,
Shielded Inductors
Ao=5.45mm Bo=5.45mm Ko=2.00mm
Parts packaged on 13" Diameter reel, 3,800 parts per reel.
Direction of feed
SECTION A-A
SD10 Series
ACTUAL SIZE
SD10
Ao=5.45mm Bo=5.45mm Ko=1.20mm
Parts packaged on 13" Diameter reel,
3,800 parts per reel.
Ao=5.45mm Bo=5.45mm Ko=2.70mm
Parts packaged on 13" Diameter reel,
2,900 parts per reel.
SD Series
High Power Density,
Low Profile,
Shielded Inductors
DC Current vs.Temperature
Idc (A)T e m p e r a t u r e R i s e (D e g . C
)
0.00
0.100.200.300.400.500.600.70
Idc (A)
T e m p e r a t u r e R i s e (D e g . C )
SD10-220
Idc (A)T e m p e r a t u r e R i s e (D e g . C
)
SD10-471
Idc (A)
T e m p e r a t u
r e R i s e (D e g . C )
T e m p e r a t u r e R i s e (D e g . C )
0.00
0.100.200.300.400.500.60
0.700.80
Idc (A)
T e m p e r a t u r e R i s e (D e g . C )
Idc (A)T e m p e r a t u r e R i s e (D e g . C )
Idc (A)
T e m p e r a t u r e R i s e (D e g . C )
Idc (A)T e m p e r a t u r e R i s e (D e g . C )
Idc (A)
T e m p e r a t u r e R i s e (D e g . C )
Rolloff
Core Loss
OCL vs Isat SD10
010203040506070
8090100% of Isat O C L (%)
OCL vs Isat SD12
010203040506070
80901000
10
20
30
40
50
60
70
80
90
100
110
120
% of Isat O C L (%)
OCL vs Isat SD18
010203040506070
80901000
10
20
30
40
50
60
70
8090100110120130140150160
% of Isat
O C L (%)
OCL vs Isat SD20
010203040506070
80901000
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
% of Isat
O C L (%)
OCL vs Isat SD25
010203040506070
80901000
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
% of Isat
O C L (%
)
Irms DERATING WITH CORE LOSS
% of Applied Volt-µSecond
% o f L o s s e s f r o m I r m s (m a x i m u m
)
SD Series
High Power Density,
Low Profile,Shielded Inductors
