Actual Size
MIL DASH #
SRF MINIMUM (MHz)
DASH NUMBER*
INDUCTANCE (µH)
Q MINIMUM
TEST FREQUENCY (MHz)
DC RESISTANCE
MAXIMUM (OHMS)
CURRENT RATING
MAXIMUM (mA)
TOLERANCE
SERIES 1840R
1840
Molded Unshielded RF Coils
Military Specifications
MS75008 (LT4K); MS75101 (LT10K)
Physical Parameters
Inches Millimeters
Length 0.437 ± 0.010 11.10 ± 0.25
Diameter 0.187 ± 0.010 4.75 ± 0.25
Lead Size
AWG #22 TCW 0.025 ± 0.002 0.635 ± 0.051
Lead Length 1.44 ± 0.12 36.58 ± 3.05
Current Rating at 90°C Ambient
LT4K 35°C Rise
LT10K 15°C Rise
Operating Temperature Range
LT4K
–
55°C to +125°C;
LT10K
–
55°C to +105°C
Maximum Power Dissipation at 90°C
LT4K 0.385 W
LT10K 0.165 W
Weight Max. (Grams) 0.95
Marking DELEVAN; inductance with units and tolerance;
date code (YYWWL). Note: An R before the date code
indicates a RoHS component.
Example: 1840R-18K
Front: Reverse:
DELEVAN 3.3uH±10%
3.3uH±10% R 0910A
Packaging Tape & reel: 12" reel, 2500 pieces max.; 14"
reel, 3000 pieces max.
gNo MS # Issued
Made in the U.S.A.
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
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MS75008– SERIES 1840 PHENOLIC CORE (LT4K)
-00M
-02M
-04M
-05M
-06M
-07K
-08K
-09K
-10K
-11K
-12K
-13K
-14K
-16K
MS75101– SERIES 1840 IRON CORE (LT10K)
-18K
-20K
-22K
-24K
-26K
-28K
-30K
-32K
-34K
-35K
-36K
-38K
3050
2820
2360
1860
1860
1670
1520
1240
1050
835
755
610
555
525
1020
900
775
670
580
560
455
385
324
265
251
214
0.030
0.035
0.050
0.080
0.080
0.100
0.120
0.180
0.250
0.400
0.485
0.740
0.900
1.100
0.120
0.155
0.210
0.280
0.375
0.400
0.600
0.850
1.200
1.800
2.000
2.750
510
415
350
300
300
270
250
220
200
180
170
150
140
120
70
65
60
50
50
48
42
36
30
30
24
22
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
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
55
55
55
55
55
55
55
55
55
35
35
35
35
35
35
35
35
35
35
35
35
50
55
60
60
65
± 20%
± 20%
± 20%
± 20%
± 20%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
± 10%
0.15
0.22
0.33
0.39
0.47
0.56
0.68
0.82
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
21
22
23
g
24
25
26
27
28
29
30
31
32
33
1
2
3
4
5
6
7
8
9
10
11
12
Optional Tolerances: J = 5% H = 3% G = 2% F = 1%
*Complete part # must include series # PLUS the dash #
For surface finish information, refer to www.delevanfinishes.com
Parts listed above are QPL/MIL qualified
1/2009
API_newlayouts_single:APIcatalog_newlayouts 8/24/10 11:38 AM Page 43
Mouser Electronics
Authorized Distributor
Click to View Pricing, Inventory, Delivery & Lifecycle Information:
API Delevan:
1840R-34KTR 1840-35K 1840R-06MTR 1840-13K 1840-20JTR 1840-22K 1840-30K 1840-34K 1840-09K 1840-
36K 1840R-22K 1840-00M 1840-00K 1840-00J 1840-00H 1840-00G 1840-00F 1840-02M 1840-02K 1840-02J
1840-02H 1840-02G 1840-02F 1840-04M 1840-04K 1840-04J 1840-04H 1840-04G 1840-04F 1840-05M 1840-
05K 1840-05J 1840-05H 1840-05G 1840-05F 1840-06M 1840-06K 1840-06J 1840-06H 1840-06G 1840-06F
1840-07K 1840-07J 1840-07H 1840-07G 1840-07F 1840-08K 1840-08J 1840-08H 1840-08G 1840-08F 1840-
09J 1840-09H 1840-09G 1840-09F 1840-10K 1840-10J 1840-10H 1840-10G 1840-10F 1840-11K 1840-11J
1840-11H 1840-11G 1840-11F 1840-12K 1840-12J 1840-12H 1840-12G 1840-12F 1840-13J 1840-13H 1840-
13G 1840-13F 1840-14K 1840-14J 1840-14H 1840-14G 1840-14F 1840-16K 1840-16J 1840-16H 1840-16G
1840-16F 1840-18K 1840-18J 1840-18H 1840-18G 1840-18F 1840-20K 1840-20H 1840-20G 1840-20F 1840-
22J 1840-22H 1840-22G 1840-22F 1840-24K 1840-24J 1840-24H
