R
ST
TE
0%
±1
H)
(µ
CE
#
AN
SH
CT
DA
DU
IN
F
SERIES
2890R
2890
ct
du
In
NG
TI )
RA A
T (m
EN UM
RR IM
CE
CU X
MA TAN S)
S
SI HM
RE (O
M
DC MU
)
XI
Hz
(M
MA
M
MU
NI
MI
)
F
Hz
SR
(M
Y
NC
UE
EQ
FR
DA
MI
L
I
TA
R
Y
SH
L
MI
A
Q
PP
ROVE
D
NU
E
MB
s
or
M
MU
NI
MI
Molded Unshielded RF Coils
R*
Actual Size
-00K
-02K
-03K
-04K
-06K
-08K
-10K
-12K
-14K
-16K
-18K
-20K
-22K
-24K
-26K
-28K
-30K
-32K
-34K
-36K
-38K
-39K
-40K
-42K
-44K
Military Specifications
MS91189 (LT4K); MS75103(LT10K)
Physical Parameters
Inches
Length
0.900 ± 0.010
Diameter
0.280 ± 0.010
Lead Size
AWG #21 TCW
0.028 ± 0.002
Lead Length
1.44 ± 0.12
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 0.598 W
LT10K 0.256 W
Weight Max.
(Grams) 3.9
Marking
DELEVAN; inductance with units and tolerance;
date code (YYWWL). Note: An R before the date code
indicates a RoHS component.
Example: 2890R-16F
Front:
DELEVAN
6.8uH±1%
Reverse:
6.8uH±1%
R 0518B
Millimeters
22.86 ± 0.25
7.11 ± 0.25
0.711 ± 0.051
36.58 ± 3.05
MS91189– SERIES 2890 PHENOLIC CORE (LT4K)
14
1.2
60
7.9
170
0.075
15
1.5
60
7.9
160
0.090
16
1.8
60
7.9
140
0.135
17
2.2
60
7.9
125
0.160
18
2.7
60
7.9
115
0.220
19
3.3
60
7.9
100
0.305
20
3.9
60
7.9
95
0.450
21
4.7
60
7.9
90
0.560
22
5.6
60
7.9
80
0.745
23
6.8
60
7.9
75
1.05
24
8.2
60
7.9
68
1.40
25
10.0
60
7.9
60
1.90
26
12.0
40
2.5
53
2.65
27
15.0
40
2.5
50
3.25
28
18.0
40
2.5
45
4.15
MS75103– SERIES 2890 IRON CORE (LT10K)
1
22.0
50
2.5
24
0.295
2
27.0
45
2.5
22
0.35
3
33.0
60
2.5
19
0.55
4
39.0
55
2.5
18
0.65
5
47.0
65
2.5
16
1.00
6
56.0
65
2.5
14
1.15
7
68.0
75
2.5
13
1.85
8
82.0
75
2.5
12
2.10
9
100.0
75
2.5
12
2.50
10
120.0
95
0.79
10
4.10
2400
2190
1790
1640
1400
1190
980
880
760
640
555
475
405
365
320
815
750
595
550
445
410
325
305
279
219
Parts listed above are QPL/MIL qualified
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
Packaging
Tape & reel: 12" reel, 800 pieces max.; 14"
reel, 1300 pieces max.
Made in the U.S.A.
270 Quaker Rd., East Aurora NY 14052 • Phone 716-652-3600 • Fax 716-652-4814 • E-mail: apisales@delevan.com • www.delevan.com
1/2009
Switching Power Supply Study Group
京公网安备 11010802033920号
EEWORLD
