er
w
Po
L
NA
MI
NO
L
TA
EN S)
EM MP
CR (A
IN DC
T
EN
RR
NG
CU
TI )
RA S
T MP
EN (A
RR UM
CU XIM
MA
CE
AN )
ST S
SI HM
RE M (O
DC MU
XI
MA
CE
AN
CT 10%
DU ) ±
IN (µH
SERIES
4590R
4590
s
or
ct
du
In
DA
SH
NU
E
MB
High Current Filter Inductors
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
Actual Size (Max.)
Physical Parameters
Length
Diameter
Lead Size
AWG #20 TCW
Lead Length
Inches
0.900 Max.
0.455 Max.
0.032 ± 0.002
1.10 Min.
Millimeters
22.86 Max.
11.55 Max.
0.813 ± 0.05
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
SERIES 4590 FERRITE CORE
3.9
0.007
9.75
4.7
0.008
9.11
5.6
0.011
7.77
6.8
0.011
7.60
8.2
0.013
7.15
10.0
0.016
6.44
12.0
0.018
6.07
15.0
0.020
5.76
18.0
0.022
5.49
22.0
0.024
5.26
27.0
0.025
5.15
33.0
0.028
4.87
39.0
0.031
4.63
47.0
0.034
4.45
56.0
0.043
3.93
68.0
0.059
3.355
82.0
0.066
3.175
100
0.084
2.815
120
0.113
2.43
150
0.129
2.27
180
0.150
2.105
220
0.162
2.025
270
0.226
1.715
330
0.257
1.61
390
0.288
1.52
470
0.393
1.30
560
0.504
1.15
680
0.570
1.08
820
0.643
1.015
1000
0.844
0.89
1200
0.977
0.825
1500
1.18
0.75
1800
1.50
0.665
2200
1.76
0.615
2700
2.13
0.56
3300
2.53
0.51
3900
2.84
0.48
4700
3.79
0.415
5600
4.24
0.395
6800
5.75
0.34
8200
6.44
0.32
10000
7.30
0.30
12000
9.34
0.265
15000
10.7
0.25
18000
14.8
0.21
22000
18.0
0.19
27000
22.7
0.17
33000
25.7
0.16
39000
29.7
0.15
47000
33.7
0.14
56000
38.0
0.13
68000
52.8
0.11
82000
67.3
0.10
100000
76.0
0.09
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
Optional Tolerances: J = 5% L = 15%
*Complete part # must include series # PLUS the dash #
For surface finish information, refer to www.delevanfinishes.com
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
TI Technology Forum
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