er
w
Po
L
TA
EN S)
EM MP
CR (A
IN NT
E
RR
CU
NG
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
Hz
1k
@ 15%
CE ) ±
AN (µH
CT
DU
IN
SERIES
2256R
2256
s
or
ct
du
In
DA
SH
NU
*
ER
MB
Axial Lead Power Choke
Actual Size
Mechanical Configuration
Units are axial leaded
encapsulated in an epoxy molded case.
Physical Parameters
Inches
Length
0.550 to 0.570
Diameter 0.205 to 0.225
Lead Size
AWG #21 TCW
0.76
Lead Length
Millimeters
14.00 to 14.48
5.21 to 5.72
0.026 to 0.030
1.25 Min.
0.66 to
31.75 Min.
Operating Temperature
–55°C to +125°C
Current Rating at 80°C Ambient
45°C Rise
Maximum Power Dissipation at 80°C
0.44 W
Incremental Current
The current at which the inductance
will be decreased by a maximum of 5% from its initial zero
DC value.
Marking
DELEVAN; inductance with units and tolerance;
date code (YYWWL). Note: An R before the date code
indicates a RoHS component.
Example: 2256-16J
Front:
Reverse:
DELEVAN
0920B
18uH±5%
Packaging
Tape & reel: 12" reel, 1000 pieces max.;
14" reel, 1500 pieces max.
Made in the U.S.A.
Optional Tolerances: K = 10% J = 5%
*Complete part # must include series # PLUS the dash #
For surface finish information,
refer to www.delevanfinishes.com
-221L
-271L
-331L
-391L
-471L
-561L
-681L
-821L
-01L
-02L
-03L
-04L
-05L
-06L
-07L
-08L
-09L
-10L
-11L
-12L
-13L
-14L
-15L
-16L
-17L
-18L
-19L
-20L
-21L
-22L
-23L
-24L
-25L
-26L
-27L
-28L
-29L
-30L
-31L
-32L
-33L
-34L
-35L
-36L
-37L
-38L
-39L
-40L
-41L
-42L
-43L
-44L
-45L
-46L
-47L
-48L
-49L
-50L
-51L
-52L
-53L
SERIES 2256 FERRITE CORE
0.22
0.0080
7.00
0.27
0.0085
6.75
0.33
0.0090
6.50
0.39
0.0095
6.25
0.47
0.0100
6.00
0.56
0.0105
5.80
0.68
0.0110
5.70
0.82
0.0120
5.60
1.00
0.013
5.50
1.20
0.018
4.69
1.50
0.020
4.45
1.80
0.021
4.34
2.20
0.029
3.70
2.70
0.034
3.41
3.30
0.038
3.23
3.90
0.042
3.07
4.70
0.047
2.90
5.60
0.051
2.79
6.80
0.058
2.61
8.20
0.063
2.51
10.0
0.071
2.36
12.0
0.079
2.24
15.0
0.089
2.11
18.0
0.119
1.82
22.0
0.152
1.61
27.0
0.179
1.48
33.0
0.222
1.33
39.0
0.315
1.12
47.0
0.362
1.04
56.0
0.397
1.00
68.0
0.418
0.97
82.0
0.604
0.81
100
0.672
0.76
120
0.735
0.73
150
0.913
0.63
180
1.370
0.53
220
1.580
0.50
270
1.770
0.47
330
2.510
0.39
390
2.730
0.38
470
3.250
0.35
560
3.750
0.33
680
4.310
0.30
820
6.040
0.26
1000
6.900
0.24
1200
10.00
0.200
1500
12.50
0.178
1800
16.00
0.157
2200
20.00
0.141
2700
23.00
0.131
3300
25.00
0.126
3900
33.00
0.110
4700
37.00
0.103
5600
40.00
0.100
6800
62.00
0.080
8200
66.00
0.077
10000
74.00
0.071
12000
93.00
0.065
15000
105.0
0.061
18000
143.0
0.052
22000
160.0
0.050
7.00
6.75
6.50
6.25
6.00
5.80
5.70
5.60
5.50
4.69
4.45
4.34
3.70
3.41
3.23
3.07
2.90
2.79
2.61
2.51
2.36
2.24
2.11
1.82
1.61
1.48
1.33
1.12
1.04
1.00
0.97
0.81
0.76
0.73
0.63
0.53
0.50
0.47
0.39
0.38
0.35
0.33
0.30
0.26
0.24
0.200
0.178
0.157
0.141
0.131
0.126
0.110
0.103
0.100
0.080
0.077
0.071
0.065
0.061
0.052
0.050
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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