SERIES
High Current Filter Inductors
Actual Size (Max.)
Physical Parameters
Inches Millimeters
Length 0.900 Max. 22.86 Max.
Diameter 0.455 Max. 11.55 Max.
Lead Size
AWG #20 TCW 0.032 ± 0.002 0.813 ± 0.05
Lead Length 1.10 Min. 27.94 Min.
Operating Temperature
–55°C to +125°C
–55°C to +85°C @ full rated current
Current Rating at 85°C Ambient 40°C Rise
Maximum Power Dissipation at 85°C 0.70 W
Dielectric Withstanding Voltage 2500 V RMS
Incremental Current The current which will decrease the
inductance by approximately 5%.
Inductance Measurement Inductance is measured @ 1 kHz
with 1 VAC open circuit and 0 dc bias.
Inductance Tolerance Tolerance is specified by suffixing an
alpha character to the part number as follows: J = 5%, K =
10%, and L = 15%. Units are normally supplied to the
tolerance indicated in table.
High Saturation Bobbin allows for high inductance
with low DCR.
High Resistivity Core offers very high parallel resistance,
resulting in maximum coil performance.
4590 Marking DELEVAN; inductance; tolerance.
4590R Marking DELEVAN; 4590R; dash number with
tolerance letter.
Example: 4590-393K
DELEVAN
39 uH
±10%
Example: 4590R-393K
DELEVAN
4590R
393K
Packaging Bulk only
4590
4590R
D
A
S
H
N
U
N
MB
E
R
*
-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
-125K
-155K
-185K
-225K
-275K
-335K
-395K
-475K
-565K
-685K
-825K
-106K
-126K
-156K
-186K
-226K
-276K
-336K
-396K
-476K
-566K
-686K
-826K
-107K
O
MIN
D
U
C
)
±1
0
MA
D
C
XIMU
R
ESIST
T
A
N
%
3.9
4.7
5.6
6.8
8.2
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
390
470
560
680
820
1000
1200
1500
1800
2200
2700
3300
3900
4700
5600
6800
8200
10000
12000
15000
18000
22000
27000
33000
39000
47000
56000
68000
82000
100000
M (
O
H
C
E
SERIES 4590 FERRITE CORE
MS)
A
L
IN
(
µ
H
MA
XIMU
A
N
C
E
0.007
0.008
0.011
0.011
0.013
0.016
0.018
0.020
0.022
0.024
0.025
0.028
0.031
0.034
0.043
0.059
0.066
0.084
0.113
0.129
0.150
0.162
0.226
0.257
0.288
0.393
0.504
0.570
0.643
0.844
0.977
1.18
1.50
1.76
2.13
2.53
2.84
3.79
4.24
5.75
6.44
7.30
9.34
10.7
14.8
18.0
22.7
25.7
29.7
33.7
38.0
52.8
67.3
76.0
C
U
C
U
R
R
EN
M (
T
R
A
AT
MPS)
IN
G
9.75
9.11
7.77
7.60
7.15
6.44
6.07
5.76
5.49
5.26
5.15
4.87
4.63
4.45
3.93
3.355
3.175
2.815
2.43
2.27
2.105
2.025
1.715
1.61
1.52
1.30
1.15
1.08
1.015
0.89
0.825
0.75
0.665
0.615
0.56
0.51
0.48
0.415
0.395
0.34
0.32
0.30
0.265
0.25
0.21
0.19
0.17
0.16
0.15
0.14
0.13
0.11
0.10
0.09
Optional Tolerances: J = 5% L = 15%
*Complete part # must include series # PLUS the dash #
For surface finish information, refer to www.delevanfinishes.com
R
R
EN
INCREMENTAL
T DC (AMPS)
Power Inductors
8.2
7.5
6.9
6.3
5.7
5.2
4.7
4.3
3.9
3.5
3.2
2.9
2.7
2.5
2.3
2.1
1.9
1.7
1.6
1.4
1.3
1.2
1.1
0.95
0.88
0.80
0.74
0.67
0.61
0.56
0.51
0.46
0.42
0.38
0.34
0.31
0.29
0.26
0.24
0.22
0.20
0.18
0.17
0.15
0.14
0.12
0.11
0.10
0.09
0.09
0.08
0.07
0.07
0.06
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
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