Actual Size
DASH NUMBER*
INDUCTANCE (µH)
±10% @1 kHz
DC RESISTANCE
MAXIMUM (OHMS)
CURRENT RATING
MAXIMUM (mA DC)
INCREMENTAL
CURRENT (mA DC)
SERIES SP1812R
SP1812
Shielded Surface Mount Power Inductors
Physical Parameters
Inches Millimeters
A 0.166 to 0.190 4.22 to 4.83
B 0.118 to 1.34 3.00 to 3.40
C 0.118 to 1.34 3.00 to 3.40
D 0.015 Min. 0.38 Min.
E 0.054 to 0.078 1.37 to 1.98
F 0.118 (Ref. only) 3.00 (Ref. only)
G 0.066 (Ref only) 1.68 (Ref. only)
Dimensions "A" and "C" are over terminals.
Operating Temperature Range –55°C to +125°C
Current Rating at 90°C Ambient 35°C Rise
Maximum Power Dissipation at 90°C 0.287 W
Inductance Measured at 1V with no DC current
Incremental Current The current at which the
inductance will be decreased by a maximum of 10% from
its initial DC value
Marking Delevan; dash number followed by SP; date code
(YYWWL). Note: An R before the date code indicates a
RoHS component.
Example: SP1812R-182K
DELEVAN
182 SP
R 1804A
Packaging Tape & reel (12mm): 7" reel, 650 pieces max.;
13" reel, 2500 pieces max.
Coupling 5% Typical (Ref. M83446, 1mm spacing)
Made In the U.S.A.
Power Inductors
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: apisales@delevan.com • www.delevan.com
SERIES SP1812 FERRITE CORE
-102K
-122K
-152K
-182K
-222K
-272K
-332K
-392K
-472K
-562K
-682K
-822K
-103K
-123K
-153K
-183K
-223K
-273K
-333K
-393K
-473K
-563K
-683K
-823K
-104K
-124K
-154K
-184K
-224K
-274K
-334K
2060
1890
1690
1540
1390
1270
1150
1000
959
866
789
724
657
602
530
486
438
400
359
332
296
275
250
228
206
188
168
154
139
125
113
1580
1510
1430
1360
1170
1110
1060
1000
969
920
878
842
802
767
640
613
509
430
408
354
335
323
275
262
250
210
198
172
164
143
136
0.081
0.088
0.098
0.11
0.15
0.16
0.18
0.20
0.21
0.24
0.26
0.28
0.31
0.34
0.49
0.68
0.75
1.0
1.2
1.6
1.8
1.9
2.7
2.9
3.2
4.6
5.1
6.7
7.5
9.8
10.9
1.00
1.20
1.50
1.80
2.20
2.70
3.30
3.90
4.70
5.60
6.80
8.20
10.0
12.0
15.0
18.0
22.0
27.0
33.0
39.0
47.0
56.0
68.0
82.0
100
120
150
180
220
270
330
Optional Tolerances: J = 5% H = 3% G = 2%
*Complete part # must include series # PLUS the dash #
For surface finish information, refer to www.delevanfinishes.com
8/2018
