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Datasheet> All Categories > Passive components> inductor> F21J257
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F21J257

Description
General Purpose Inductor, 257uH, 15%, 1 Element, Iron-Core
CategoryPassive components    inductor   
File Size367KB，4 Pages
ManufacturerTorotel Products Inc
Download Datasheet Parametric View All

F21J257 Overview

General Purpose Inductor, 257uH, 15%, 1 Element, Iron-Core

F21J257 Parametric

Parameter NameAttribute value
Reach Compliance Codeunknown
ECCN codeEAR99
core materialIRON
DC Resistance0.216 Ω
Nominal inductance(L)257 µH
Inductor ApplicationsPOWER INDUCTOR
Inductor typeGENERAL PURPOSE INDUCTOR
Number of functions1
Number of terminals4
Maximum rated current1.6 A
Shape/Size DescriptionCYLINDRICAL PACKAGE
shieldNO
surface mountNO
Terminal locationDUAL IN-LINE
Terminal shapePRINTED WIRING PIN
Test frequency0.01 MHz
Tolerance15%
Base Number Matches1

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13402 SOUTH 71 HIGHWAY
GRANDVIEW, MO 64030
E-mail: torotel@sound.net (816) 761-6314 FAX (816) 763-2278
PART
NUMBER
**21A0.9
**21A1.6
**21A3.1
**21A5.7
**21A10.1
**21A17.1
½LI
2
(
µJ
)
429
428
430
426
427
428
"L"
NO DC
(
µ
H)
0.9
1.6
3.1
5.7
10.1
17.1
DCR
MAX.
(Ω)
0.0022
0.0035
0.0070
0.0140
0.0280
0.0640
DCI
MAX.
(Amps)
10.0
6.5
4.0
2.5
1.6
1.0
"L"
WITH
DCI (µH)
0.9
1.6
3.0
5.6
10.0
17.0
TEST
LEVEL
(VRMS)
0.004
0.005
0.007
0.010
0.013
0.017
DCI (Amps) FOR % DECREASE IN "L"
5%
11.00
8.24
5.99
4.39
3.30
2.54
10%
14.50
10.80
7.89
5.78
4.34
3.34
20%
21.40
16.00
11.70
8.56
6.42
4.94
30%
27.50
20.40
15.00
10.98
8.24
6.34
40%
35.30
26.50
19.20
14.10
10.60
8.14
50%
43.40
32.50
23.70
17.30
13.00
10.00
LEAD
DIA.
0.050
0.040
0.032
0.025
0.020
0.016
**21B1.8
**21B3.3
**21B7.0
**21B11.0
**21B23.0
**21B32.0
973
948
943
951
1017
968
1.8
3.3
7.0
11.0
23.0
32.0
0.0022
0.0042
0.0089
0.0166
0.0342
0.0653
16.0
10.0
6.5
4.0
2.5
1.6
1.6
3.0
6.5
10.4
22.3
31.4
0.008
0.011
0.016
0.020
0.028
0.034
10.90
7.90
5.43
4.34
3.10
2.56
15.50
11.30
7.76
6.21
4.43
3.65
22.70
16.50
11.30
9.06
6.47
5.33
28.90
21.00
14.40
11.50
8.25
6.79
37.20
27.10
18.60
14.90
10.60
8.76
46.50
33.90
23.30
18.60
13.30
11.00
0.064
0.050
0.040
0.032
0.025
0.020
**21D5.3
**21D10.5
**21D17.4
**21D30.0
**21D48.5
**21D81.0
2216
2192
2163
2142
2149
2107
5.3
10.5
17.4
30.0
48.5
81.0
0.0036
0.0073
0.0142
0.0280
0.0544
0.1110
16.0
10.0
6.5
4.0
2.5
1.6
4.6
9.4
15.8
28.5
47.0
79.4
0.020
0.029
0.038
0.049
0.063
0.082
9.54
6.73
5.20
3.95
3.09
2.38
13.60
9.62
7.43
5.64
4.42
3.41
19.90
14.00
10.90
8.23
6.45
4.97
25.30
17.90
13.80
10.50
8.22
6.34
32.70
23.10
17.80
13.50
10.60
8.18
40.90
28.90
22.30
16.90
13.30
10.20
0.064
0.050
0.040
0.032
0.025
0.020
**21E5.2
**21E9.7
**21E17.2
**21E31.3
**21E49.7
**21E79.5
2621
2625
2623
2621
2612
2628
5.2
9.7
17.2
31.3
49.7
79.5
0.0035
0.0073
0.0143
0.0290
0.0564
0.1140
16.0
10.0
6.5
4.0
2.5
1.6
4.6
8.9
16.3
30.2
48.5
78.3
0.0227
0.0309
0.0412
0.0556
0.0700
0.0886
11.70
8.55
6.42
4.76
3.77
2.99
15.00
11.00
8.23
6.10
4.83
3.83
21.90
16.00
12.00
8.91
7.06
5.60
27.80
20.40
15.30
11.30
8.99
7.13
35.90
26.30
19.80
14.60
11.60
9.20
44.90
32.90
24.70
18.30
14.50
11.50
0.064
0.050
0.040
0.032
0.025
0.020
**21F5.5
**21F9.5
**21F17.0
**21F27.0
**21F46.5
**21F80.0
**21F123
**21G10.0
**21G17.5
**21G29.5
**21G50.0
**21G80.0
**21G140
**21G205
**21J13.5
**21J23.0
**21J35.0
**21J60.0
**21J100
**21J178
**21J257
**21K20.0
**21K34.5
**21K56.5
**21K93.5
**21K153
**21K263
**21K400
2999
3027
2962
2977
2976
2977
2953
5085
4998
4986
4950
4930
4956
4932
6504
6414
6379
6365
6400
6302
6284
11234
11240
11153
11007
10796
10772
10816
5.5
9.5
17.0
27.0
46.5
80.0
123.0
10.0
17.5
29.5
50.0
80.0
140.0
205.0
13.5
23.0
35.0
60.0
100.0
178.0
257.0
20.0
34.5
56.5
93.5
153.0
263.0
400.0
0.0025
0.0049
0.0100
0.0190
0.0380
0.0750
0.1480
0.0033
0.0068
0.0129
0.0255
0.0490
0.0992
0.1902
0.0039
0.0078
0.0142
0.0280
0.0551
0.1130
0.2160
0.0047
0.0093
0.0184
0.0364
0.0710
0.1427
0.2794
26.0
16.0
10.0
6.5
4.0
2.5
1.6
26.0
16.0
10.0
6.5
4.0
2.5
1.6
26.0
16.0
10.0
6.5
4.0
2.5
1.6
26.0
16.0
10.0
6.5
4.0
2.5
1.6
4.2
7.9
14.9
24.5
43.7
77.6
120.5
7.5
14.1
25.3
45.0
74.4
133.0
200.0
9.7
18.6
30.8
54.6
94.0
170.0
251.0
15.0
28.2
50.2
85.0
145.0
252.0
395.0
0.026
0.034
0.046
0.058
0.076
0.100
0.124
0.044
0.059
0.076
0.100
0.126
0.168
0.203
0.055
0.072
0.090
0.117
0.152
0.203
0.245
0.093
0.122
0.157
0.203
0.261
0.343
0.424
10.90
8.34
6.16
4.89
3.73
2.84
2.29
10.50
7.90
6.07
4.64
3.67
2.77
2.29
10.20
7.80
6.30
4.82
3.72
2.78
2.31
11.10
8.42
6.55
5.05
3.93
3.00
2.42
15.60
11.90
8.81
6.98
5.33
4.05
3.27
15.00
11.30
8.68
6.64
5.25
3.96
3.27
14.60
11.10
9.00
6.88
5.32
3.97
3.30
15.80
12.00
9.36
7.22
5.61
4.28
3.46
22.70
17.40
12.90
10.20
7.78
5.91
4.77
22.00
16.50
12.70
9.69
7.66
5.78
4.77
21.30
16.30
13.10
10.00
7.76
5.79
4.81
23.10
17.60
13.70
10.50
8.20
6.25
5.05
29.00
22.20
16.40
13.00
9.91
7.53
6.08
28.00
21.00
16.10
12.30
9.76
7.36
6.08
27.20
20.70
16.70
12.80
9.89
7.38
6.13
29.40
22.40
17.40
13.40
10.40
7.97
6.44
37.40
28.60
21.10
16.80
12.80
9.72
7.84
36.10
27.10
20.90
15.90
12.60
9.50
7.85
35.10
26.70
21.60
16.50
12.80
9.52
7.91
37.90
28.90
22.50
17.30
13.50
10.30
8.31
46.70
35.70
26.40
21.00
16.00
12.20
9.80
45.10
33.80
26.00
19.90
15.70
11.90
9.81
43.90
33.40
27.00
20.60
16.00
11.90
9.89
47.40
36.10
28.10
21.70
16.80
12.80
10.40
0.080
0.064
0.050
0.040
0.032
0.025
0.020
0.080
0.064
0.050
0.040
0.032
0.025
0.020
0.080
0.064
0.050
0.040
0.032
0.025
0.020
0.080
0.064
0.050
0.040
0.032
0.025
0.020
PART NUMBER ORDERING INFORMATION
EXAMPLE:
A 21 A 0.9
INDUCTANCE
(microhenrys)
SIZE
STYLE
(1 or 2 Letters)
CORE TYPE
22

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