CTX250-4 Coiltronics/Div of Cooper/Bussmann, CTX250-4 Datasheet - Page 4

• Manufacturer Part Number: CTX250-4
• Description: INDUCTOR TOROID DL 254.40UH SMD
• Manufacturer: Coiltronics/Div of Cooper/Bussmann
• Series: OCTA-PAC®r

Specifications of CTX250-4

• Inductance Per Coil: 250µH
• Number Of Coils: 2
• Current: 308mA
• Tolerance: ±20%
• Inductance - Connected In Series: 1mH
• Inductance - Connected In Parallel: 250µH
• Dc Resistance (dcr): 1.230 Ohm Max
• Package / Case: 0.550" L x 0.550" W x 0.250" H (13.97mm x 13.97mm x 6.35mm)
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 513-1024-2

1) Open Circuit Inductance Test Parameters: 100kHz, 0.250 Vrms, 0.0 Adc
2) Peak current for approximately 30% roll-off
3) RMS current, delta temp. of 40° C ambient temperature of 85° C
4) Values @ 20° C, Maximum DCR is +15% of typical value.
Part Number
CTX0.33-1A
CTX0.68-1A
CTX1-1A
CTX2-1A
CTX5-1A
CTX8-1A
CTX10-1A
CTX15-1A
CTX20-1A
CTX25-1A
CTX33-1A
CTX50-1A
CTX68-1A
CTX100-1A
CTX150-1A
CTX200-1A
CTX300-1A
CTX0.33-2A
CTX0.68-2A
CTX1-2A
CTX2-2A
CTX5-2A
CTX8-2A
CTX10-2A
CTX15-2A
CTX20-2A
CTX25-2A
CTX33-2A
CTX50-2A
CTX68-2A
CTX100-2A
CTX150-2A
CTX200-2A
CTX300-2A
CTX0.33-3A
CTX0.68-3A
CTX1-3A
CTX2-3A
CTX5-3A
CTX8-3A
CTX10-3A
CTX15-3A
CTX20-3A
CTX25-3A
CTX33-3A
CTX50-3A
Parallel: (1,4 - 3,2) Series: (1 - 3) tie (2 - 4)
Inductance
Rated
100.0
150.0
200.0
300.0
100.0
150.0
200.0
300.0
(µH)
0.33
0.68
10.0
15.0
20.0
25.0
33.0
50.0
68.0
0.33
0.68
10.0
15.0
20.0
25.0
33.0
50.0
68.0
0.33
0.68
10.0
15.0
20.0
25.0
33.0
50.0
1.0
2.0
5.0
8.0
1.0
2.0
5.0
8.0
1.0
2.0
5.0
8.0
nominal
OCL (1)
+/-25%
102.38
0.402
0.752
10.58
15.23
20.73
24.86
34.26
51.18
67.87
99.45
147.4
198.6
300.8
0.284
0.675
11.38
15.48
20.22
25.60
34.84
49.38
66.44
152.9
197.5
303.7
0.368
0.688
15.52
20.81
24.77
33.71
49.71
(µH)
1.18
2.30
4.70
7.94
1.26
1.98
5.06
7.90
1.08
2.11
5.20
8.43
9.68
Amperes
I sat. (2)
Peak
12.5
5.36
3.75
2.88
2.08
1.79
1.63
1.39
1.14
0.99
0.82
0.67
0.58
0.47
18.8
12.5
9.38
7.50
4.69
3.75
3.13
2.68
2.34
2.08
1.79
1.50
1.29
1.04
0.85
0.75
0.60
15.0
11.3
6.43
4.09
3.21
3.00
2.37
2.05
1.88
1.61
1.32
9.4
7.5
2.5
9.0
Parallel Ratings
I rms. (3)
Amperes
10.0
7.26
5.64
4.27
3.37
2.84
2.07
1.71
1.46
1.22
0.99
0.92
0.74
0.67
0.62
0.56
10.9
8.22
6.74
4.34
3.50
2.89
2.69
2.24
1.89
1.56
1.28
1.07
0.75
0.68
0.64
0.58
11.4
8.38
7.26
5.24
4.23
3.64
3.25
2.43
2.34
1.93
1.56
9.0
9.4
9.3
DCR
@ 20°C.
0.0037
0.0046
0.0070
0.0033
0.0045
0.0058
0.0090
0.0032
0.0048
0.0059
0.0079
0.012
0.020
0.033
0.046
0.087
0.127
0.173
0.249
0.381
0.437
0.686
0.832
0.963
1.181
0.021
0.032
0.047
0.054
0.078
0.111
0.162
0.240
0.342
0.695
0.842
0.950
1.174
0.015
0.023
0.032
0.039
0.071
0.076
0.112
0.171
typ.
(4)
Volt (7)
µ-Sec
1.24
1.55
2.17
3.11
4.04
4.66
5.59
6.52
7.14
8.39
10.3
11.8
14.3
17.4
20.2
24.9
1.28
1.71
2.14
3.42
4.27
5.13
5.98
6.84
7.69
8.97
10.7
12.4
15.4
18.8
21.4
26.5
0.97
1.29
1.61
2.26
3.54
4.51
4.83
6.12
7.09
7.73
9.02
11.0
.93
.85
5) Hipot rating: winding to winding: 300Vdc min.
6) Turns Ratio: (1-2):(4-3) 1:1
7) Applied volt-time product (v-us) across the inductor. This value represents the
applied V-us at 300KHz necessary to generate a core loss equal to 10% of the
total losses for a 40°C temperature rise.
nominal
OCL (1)
+/-25%
102.38
31.77
42.30
60.91
82.91
99.45
137.1
204.7
271.5
397.8
589.6
794.3
20.22
31.60
45.50
61.94
80.90
139.4
197.5
265.8
409.5
611.8
790.0
20.81
33.77
38.70
62.09
83.25
99.07
134.8
198.8
Power Inductors and Transformers
1203
1215
(µH)
1.61
3.01
4.70
9.21
18.8
1.14
2.70
5.06
7.90
1.47
2.75
4.20
8.43
Amperes
I sat. (2)
Peak
ECONO-PAC™/OCTA-PAC
6.25
4.69
3.75
2.68
1.88
1.44
1.25
1.04
0.89
0.82
0.69
0.57
0.49
0.41
0.33
0.29
0.23
9.38
6.25
4.69
3.75
2.34
1.88
1.56
1.34
1.17
1.04
0.89
0.75
0.65
0.52
0.43
0.38
0.30
7.50
5.63
4.50
3.21
2.05
1.61
1.50
1.18
1.02
0.94
0.80
0.66
Series Ratings
I rms. (3)
Amperes
4.98
4.48
3.63
2.82
2.13
1.69
1.42
1.03
0.86
0.73
0.61
0.49
0.46
0.37
0.33
0.31
0.28
5.47
4.68
4.11
3.37
2.17
1.75
1.45
1.35
1.12
0.94
0.78
0.64
0.54
0.38
0.34
0.32
0.29
5.72
4.64
4.19
3.63
2.62
2.12
1.82
1.63
1.22
1.17
0.96
0.78
OCTA-PAC
DCR
@ 20°C.
0.0185
0.0282
0.0470
0.0132
0.0180
0.0233
0.0128
0.0194
0.0238
0.0317
0.015
0.082
0.130
0.183
0.348
0.507
0.693
0.995
1.524
1.749
2.745
3.329
3.854
4.726
0.035
0.084
0.129
0.188
0.218
0.313
0.443
0.649
0.961
1.367
2.778
3.366
3.800
4.697
0.061
0.093
0.126
0.158
0.282
0.306
0.449
0.686
typ.
(4)
®
PLUS
Volt (7)
µ-Sec
1.86
2.49
3.11
4.35
6.21
8.08
9.32
11.2
13.0
14.3
16.8
20.5
23.6
28.6
34.8
40.4
49.7
1.71
2.56
3.42
4.27
6.84
8.55
10.3
12.0
13.7
15.4
17.9
21.4
24.8
30.8
37.6
42.7
53.0
1.93
2.58
3.22
4.51
7.09
9.02
9.67
12.2
14.2
15.5
18.0
21.9
®
®