Actual Size
For more detailed graphs, contact factory
SRF MINIMUM (MHz)
INDUCTANCE (µH) ±10%
Q MINIMUM
TEST FREQUENCY (MHz)
DC RESISTANCE
MAXIMUM (OHMS)
CURRENT RATING
MAXIMUM (mA)
SERIES S1812R
S1812
Shielded Surface Mount Inductors
Physical Parameters
Inches Millimeters
A 0.166 to 0.190 4.2 to 4.8
B 0.118 to 0.134 3.0 to 3.4
C 0.118 to 0.134 3.0 to 3.4
D 0.015 Min. 0.38 Min.
E 0.054 to 0.078 1.37 to 1.98
F 0.118 (Ref. only) 3.0 (Ref. only)
G 0.066 (Ref. only) 1.7 (Ref. only)
Dimensions “A” and “C” are over terminals
Weight Max. (Grams) 0.15
Operating Temperature Range –55°C to +125°C
Current Rating at 90°C Ambient 35°C Rise
Maximum Power Dissipation at 90°C0.278 W
Marking Delevan; dash number followed by an S;
date code (YYWWL). Note: An R before the date code
indicates a RoHS component.
Example: S1812R-102K
DELEVAN
102 S
R 1828A
RF Inductors
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: apisales@delevan.com • www.delevan.com
DASH NUMBER*
SERIES S1812 IRON CORE
-101K
-121K
-151K
-181K
-221K
-271K
-331K
-391K
-471K
-561K
-681K
-821K
SERIES S1812 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
-394K
-474K
-564K
-684K
-824K
-105K
1490
1412
1347
1290
1154
1053
952
876
802
735
675
614
755
725
706
681
658
638
534
487
471
447
408
372
333
315
301
288
277
267
258
250
242
235
215
196
169
163
158
153
149
135
129
105
91
84
79
71
60
0.09
0.10
0.11
0.12
0.15
0.18
0.22
0.26
0.31
0.37
0.44
0.53
0.35
0.38
0.40
0.43
0.46
0.49
0.70
0.84
0.90
1.00
1.20
1.44
1.80
2.00
2.20
2.40
2.60
2.80
3.00
3.20
3.40
3.60
4.30
5.20
7.00
7.50
8.00
8.50
9.00
11.0
12.0
18.0
24.0
28.0
32.0
40.0
55.0
460
400
390
350
310
280
240
215
205
185
166
155
160
140
110
100
90
67
61
56
50
40
32
30
25
22
18
15
14
13
12
11
9.0
8.0
7.6
7.2
7.0
6.0
5.0
4.5
4.2
4.0
3.7
3.5
3.3
2.8
2.6
2.2
2.0
25
25
25
25
25
25
25
25
25
25
25
25
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
7.9
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
0.79
50
50
50
50
50
50
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
50
50
50
50
50
50
50
50
50
50
50
50
40
40
40
40
40
40
40
40
40
40
40
40
40
0.10
0.12
0.15
0.18
0.22
0.27
0.33
0.39
0.47
0.56
0.68
0.82
1.0
1.2
1.5
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
220
270
330
390
470
560
680
820
1000
Optional Tolerances: J = 5% H = 3% G = 2% F = 1%
Packaging Tape & reel (12mm): 7" reel, 650 pieces max.; 13" reel,
2500 pieces max.
Made In the U.S.A.
8/2018