Document 248-1
1812DPS Coupled Inductors
•ꢀCoupledꢀinductorꢀoptimizedꢀforꢀxDSLꢀfilteringꢀapplications
•ꢀCanꢀbeꢀusedꢀasꢀaꢀcommonꢀmodeꢀchoke,ꢀ1:1ꢀtransformerꢀorꢀ
in SEPIC applications
Core material Ferrite
Terminations RoHS compliant gold over nickel over moly-manganese.
Weight 0.30 – 0.36 g
Ambient temperature –40°C to +85°C with Irms current, +85°C to
+125°C with derated current
Storage temperature Component: –40°C to +125°C.
Tape and reel packaging: –40°C to +80°C
Resistance to soldering heat Max three 40 second reflows at
+260°C, parts cooled to room temperature between cycles
Moisture Sensitivity Level (MSL) 1 (unlimited floor life at <30°C /
85% relative humidity)
Failures in Time (FIT) / Mean Time Between Failures (MTBF)
38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332
Packaging 600/7″reel; 2200/13″ reel Plastic tape: 12 mm wide,
0.25 mm thick, 8 mm pocket spacing, 3.9 mm pocket depth
PCB washing Tested with pure water or alcohol only. For other
solvents, see Doc787_PCB_Washing.pdf.
L
DCR
max
SRF
min
C
D
B
E
±±202
Q
Isat4 Irms5
1
4
Part number1
(µH) min3 (Ohms) (MHz) (mA) (mA)
1
2
4
3
1812DPS-102ML_ 1.0
1812DPS-222ML_ 2.2
1812DPS-472ML_ 4.7
1812DPS-103ML_ 10
1812DPS-153ML_ 15
38
29
43
35
37
0.20
0.33
0.41
0.74
0.96
285
175
102
74
2400 2100
1500 1200
1500 1000
A
F
800
700
780
710
65
H
1812DPS-223ML_ 22
1812DPS-393ML_ 39
1812DPS-473ML_ 47
38
39
40
1.84
2.60
2.66
54
5.7
4.8
500
450
400
530
420
390
G
0.057
1,45
0.015
0,38
1. When ordering, please specify packaging code:
181±DPS-473MLC
1
4
Packaging: C = 7″ machine-ready reel. EIA-481 embossed plastic
Pad Detail
0.020
0,51
0.020
0,51
0.115
2,92
tape (600 parts per full reel).
B = Less than full reel. In tape, but not machine ready.
To have a leader and trailer added ($25 charge),
use code letter C instead.
2
3
0.015
0,38
D = 13″ machine-ready reel. EIA-481 embossed plastic
0.018
0,46
ref
0.030 0.002
0,76 0,05
0.048
1,22
tape (2200 parts per full reel).
0.040
1,02
min
2. Per winding.Tested at 100 kHz, 0.1 Vrms, 0 Adc.
3. Q measured at 1 MHz.
4. DC current at which the inductance drops 10% (typ) from its value
without current.
Recommended
Land Pattern
5. Current that causes a 40°C temperature rise from 25°C ambient.
6. Electrical specifications at 25°C.
A
max
B
max
C
max
D
ref
E
ref
F
ref
G
min
H
0.231 0.196 0.150 0.107 0.100 0.178 0.04 0.03 inches
Refer to Doc 362 “Soldering Surface Mount Components” before soldering.
5,87 4,98 3,81 2,72 2,54 4,52 1,02 0,76 mm
Document 248-1 Revised 03/14/12
US +1-847-639-6400 sales@coilcraft.com
UK +44-1236-730595 sales@coilcraft-europe.com
Taiwan +886-2-2264 3646 sales@coilcraft.com.tw
China +86-21-6218 8074 sales@coilcraft.com.cn
Singapore + 65-6484 8412 sales@coilcraft.com.sg
© Coilcraft Inc. 2013
This product may not be used in medical or high
risk applications without prior Coilcraft approval.
Specification subject to change without notice.
Please check web site for latest information.
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