Technical Data 4319
Effective February 2014
DRA73, DRA74, DRA124, DRA125 & DRA127 Series
High Power Density, High Efficiency Shielded Inductors for
Automotive Applications
Applications
•
•
•
•
•
•
Automotive electronics (under hood, interior/
exterior)
Telematics
GPS
LED Lighting
LCD Display
Portable media devices
Environmental data
•
•
Storage temperature range (component):
-40°C to +165°C
Operating temperature range:
-40°C to +165°C
(ambient + self-temperature rise)
Solder reflow temperature: J-STD-020D
compliant
Complies with AEC-Q200 standard
•
Description
•
•
•
•
•
•
•
•
Halogen free, lead free, RoHS compliant
165°C Maximum total temperature
operation
Five different mechanical sizes available
Magnetically shielded-reduces EMI
Ferrite core material
Inductance range from 0.28µH to
1000µH
Current range up to 56 amps
Rugged construction for high shock and
vibration environments
•
Packaging
•
Supplied in tape-and-reel packaging on a
13 inch diameter reel
HALOGEN
Pb
HF
FREE
The Coiltronics brand of
magnetics (formerly of
the Bussmann Division of
Cooper Industries)
is now part of
Eaton’s Electrical Group,
Electronics Division.
Coiltronics is now
part of Eaton
Same great
products plus
even more.
Technical Data 4319
Effective February 2014
High Power Density, High Efficiency Shielded Inductors for
Automotive Applications
DRA73, DRA74, DRA124, DRA125 and DRA127 Series
Product specifications
DRA73 Series - 7.6 x 7.6 x 3.55mm
DCR (Ω)
@ 25°C
Typical
0.0040
0.0067
0.0097
0.016
0.022
0.033
0.041
0.053
0.064
0.094
0.141
0.183
0.275
0.397
0.530
0.609
0.932
1.23
1.85
2.67
3.89
4.46
5.15
DCR (Ω)
@ 25°C
Maximum
0.0048
0.0080
0.0117
0.019
0.026
0.040
0.049
0.064
0.077
0.112
0.170
0.219
0.330
0.476
0.636
0.731
1.12
1.48
2.22
3.20
4.66
5.35
6.18
K-Factor
5
636.5
353.6
289.3
212.2
187.2
151.6
127.3
117.9
102.7
86.0
70.7
57.9
47.5
40.3
36.6
32.8
27.2
21.9
18.2
15.2
12.8
11.5
10.3
Part
Number
6
DRA73-R33-R
DRA73-1R0-R
DRA73-1R5-R
DRA73-2R2-R
DRA73-3R3-R
DRA73-4R7-R
DRA73-6R8-R
DRA73-8R2-R
DRA73-100-R
DRA73-150-R
DRA73-220-R
DRA73-330-R
DRA73-470-R
DRA73-680-R
DRA73-820-R
DRA73-101-R
DRA73-151-R
DRA73-221-R
DRA73-331-R
DRA73-471-R
DRA73-681-R
DRA73-821-R
DRA73-102-R
OCL
1
±20% (µH)
0.29
0.91
1.36
2.52
3.18
4.86
6.63
8.06
10.27
14.98
22.39
31.84
47.83
66.89
83.77
101.7
151.1
218.8
326.4
472.6
682.9
825.3
991.9
I
rms2
(Amps)
8.42
6.50
5.39
4.18
3.59
2.92
2.62
2.30
2.11
1.74
1.42
1.25
1.02
0.845
0.731
0.682
0.551
0.479
0.391
0.326
0.270
0.252
0.235
I
sat
1
3
(Amps)
14.8
8.22
6.73
4.93
4.35
3.52
2.96
2.74
2.39
2.00
1.64
1.35
1.10
0.937
0.851
0.763
0.632
0.510
0.423
0.354
0.297
0.267
0.239
I
sat
2
4
(Amps)
11.8
6.58
5.38
3.95
3.48
2.82
2.37
2.19
1.91
1.60
1.32
1.08
0.884
0.749
0.680
0.610
0.506
0.408
0.338
0.283
0.238
0.214
0.192
1. Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.25V
rms
, 0.0Adc @
25°C
2. I
rms
: DC current for an approximate temperature rise of 40°C without core loss.
Derating is necessary for AC currents. PCB layout, trace thickness and width,
air-flow and proximity of other heat generating components will affect the
temperature rise. It is recommended that the temperature of the part not exceed
165°C under worst case operating conditions verified in the end application.
3. I
sat
1: Peak current for approximately 30% rolloff at +25°C.
4. I
sat
2: Peak current for approximately 40% rolloff at +125°C.
5. K-factor: Used to determine Bp-p for core loss (see graph). B
p-p
= K * L *
∆I.
B
p-p
:(Gauss), K: (K-factor from table), L: (Inductance in µH),
∆I
(peak-to-peak ripple
current in amps).
6. Part Number Definition: DRAxxx-yyy-R
• DRAxxx = Product code and size
• yyy= Inductance value in uH, R = decimal point,
if no R is present then third character = number of zeros.
• -R suffix = RoHS compliant1
2
www.eaton.com/elx
High Power Density, High Efficiency Shielded Inductors for
Automotive Applications
DRA73, DRA74, DRA124, DRA125 and DRA127 Series
Product specifications
DRA74 Series - 7.6 x 7.6 x 4.35mm
DCR (Ω)
@ 25°C
Typical
0.0054
0.0078
0.0092
0.012
0.016
0.024
0.034
0.040
0.043
0.067
0.100
0.151
0.219
0.286
0.367
0.419
0.648
0.960
1.50
1.93
2.86
3.63
4.19
Technical Data 4319
Effective February 2014
Part
Number
6
DRA74-R33-R
DRA74-1R0-R
DRA74-1R5-R
DRA74-2R2-R
DRA74-3R3-R
DRA74-4R7-R
DRA74-6R8-R
DRA74-8R2-R
DRA74-100-R
DRA74-150-R
DRA74-220-R
DRA74-330-R
DRA74-470-R
DRA74-680-R
DRA74-820-R
DRA74-101-R
DRA74-151-R
DRA74-221-R
DRA74-331-R
DRA74-471-R
DRA74-681-R
DRA74-821-R
DRA74-102-R
OCL
1
±20% (µH)
0.29
0.90
1.31
2.33
3.05
4.68
6.51
8.51
9.62
15.14
22.25
33.21
46.56
68.37
81.45
98.50
150.9
218.9
328.9
471.5
682.8
815.0
1001.7
I
rms2
(Amps)
7.26
6.01
5.55
4.82
4.16
3.41
2.91
2.66
2.56
2.06
1.68
1.37
1.14
0.996
0.879
0.822
0.661
0.544
0.435
0.383
0.315
0.279
0.260
I
sat
1
3
(Amps)
18.4
10.2
8.36
6.13
5.41
4.38
3.68
3.17
2.97
2.36
1.96
1.61
1.37
1.11
1.03
0.929
0.748
0.626
0.514
0.420
0.352
0.327
0.292
I
sat
2
4
(Amps)
14.7
8.18
6.69
4.91
4.33
3.50
2.94
2.54
2.37
1.89
1.57
1.29
1.10
0.887
0.827
0.743
0.598
0.501
0.411
0.336
0.282
0.262
0.234
DCR (Ω)
@ 25°C
Maximum
0.0064
0.0094
0.0110
0.015
0.020
0.029
0.040
0.048
0.052
0.080
0.120
0.181
0.263
0.343
0.440
0.503
0.780
1.15
1.79
2.31
3.43
4.35
5.02
K-Factor
5
547.9
304.4
249.0
182.6
161.1
130.4
109.6
94.5
88.4
70.2
58.3
48.1
40.9
33.0
30.8
27.7
22.3
18.6
15.3
12.5
10.5
9.7
8.7
1. Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.25V
rms
, 0.0Adc @
25°C
2. I
rms
: DC current for an approximate temperature rise of 40°C without core loss.
Derating is necessary for AC currents. PCB layout, trace thickness and width,
air-flow and proximity of other heat generating components will affect the
temperature rise. It is recommended that the temperature of the part not exceed
165°C under worst case operating conditions verified in the end application.
3. I
sat
1: Peak current for approximately 30% rolloff at +25°C.
4. I
sat
2: Peak current for approximately 40% rolloff at +125°C.
5. K-factor: Used to determine Bp-p for core loss (see graph). B
p-p
= K * L *
∆I.
B
p-p
:(Gauss), K: (K-factor from table), L: (Inductance in µH),
∆I
(peak-to-peak ripple
current in amps).
6. Part Number Definition: DRAxxx-yyy-R
• DRAxxx = Product code and size
• yyy= Inductance value in uH, R = decimal point,
if no R is present then third character = number of zeros.
• -R suffix = RoHS compliant1
www.eaton.com/elx
3
Technical Data 4319
Effective February 2014
High Power Density, High Efficiency Shielded Inductors for
Automotive Applications
DRA73, DRA74, DRA124, DRA125 and DRA127 Series
Product specifications
DRA124 Series - 12.5 x 12.5 x 4.5mm
DCR (Ω)
@ 25°C
Typical
0.0024
0.0031
0.0049
0.0070
0.0090
0.014
0.021
0.028
0.031
0.044
0.071
0.108
0.134
0.201
0.257
0.296
0.454
0.568
0.892
1.32
1.96
2.57
2.94
DCR (Ω)
@ 25°C
Maximum
0.0028
0.0038
0.0058
0.0090
0.011
0.017
0.026
0.034
0.038
0.053
0.086
0.130
0.160
0.241
0.309
0.355
0.550
0.680
1.070
1.58
2.35
3.09
3.52
K-Factor
5
196.9
140.7
109.4
89.5
75.7
57.9
46.9
42.8
39.4
34.0
26.6
21.9
18.6
15.1
14.3
12.8
10.4
8.7
7.0
5.8
4.9
4.5
4.0
Part
Number
6
DRA124-R47-R
DRA124-1R0-R
DRA124-1R5-R
DRA124-2R2-R
DRA124-3R3-R
DRA124-4R7-R
DRA124-6R8-R
DRA124-8R2-R
DRA124-100-R
DRA124-150-R
DRA124-220-R
DRA124-330-R
DRA124-470-R
DRA124-680-R
DRA124-820-R
DRA124-101-R
DRA124-151-R
DRA124-221-R
DRA124-331-R
DRA124-471-R
DRA124-681-R
DRA124-821-R
DRA124-102-R
OCL
1
±20% (µH)
0.42
0.82
1.36
2.04
2.79
4.74
7.28
8.88
10.37
14.10
23.00
34.13
46.27
69.77
80.57
98.80
151.7
209.6
326.9
473.0
682.1
826.7
1001.0
I
rms2
(Amps)
13.5
11.7
9.36
7.64
6.94
5.47
4.46
3.87
3.67
3.10
2.44
1.98
1.78
1.45
1.29
1.20
0.967
0.865
0.690
0.568
0.466
0.406
0.380
I
sat
1
3
(Amps)
30.8
22.0
17.1
14.0
11.9
9.06
7.33
6.70
6.16
5.31
4.16
3.42
2.91
2.37
2.23
2.00
1.62
1.36
1.09
0.911
0.759
0.697
0.629
I
sat
2
4
(Amps)
24.6
17.6
13.7
11.2
9.48
7.25
5.87
5.36
4.93
4.25
3.33
2.74
2.33
1.90
1.79
1.60
1.30
1.09
0.874
0.729
0.607
0.557
0.503
1. Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.25V
rms
, 0.0Adc @
25°C
2. I
rms
: DC current for an approximate temperature rise of 40°C without core loss.
Derating is necessary for AC currents. PCB layout, trace thickness and width,
air-flow and proximity of other heat generating components will affect the
temperature rise. It is recommended that the temperature of the part not exceed
165°C under worst case operating conditions verified in the end application.
3. I
sat
1: Peak current for approximately 30% rolloff at +25°C.
4. I
sat
2: Peak current for approximately 40% rolloff at +125°C.
5. K-factor: Used to determine Bp-p for core loss (see graph). B
p-p
= K * L *
∆I.
B
p-p
:(Gauss), K: (K-factor from table), L: (Inductance in µH),
∆I
(peak-to-peak ripple
current in amps).
6. Part Number Definition: DRAxxx-yyy-R
• DRAxxx = Product code and size
• yyy= Inductance value in µH, R = decimal point,
if no R is present then third character = number of zeros.
• -R suffix = RoHS compliant1
4
www.eaton.com/elx
High Power Density, High Efficiency Shielded Inductors for
Automotive Applications
DRA73, DRA74, DRA124, DRA125 and DRA127 Series
Product specifications
DRA125 Series - 12.5 x 12.5 x 6.0mm
DCR (Ω)
@ 25°C
Typical
0.0025
0.0034
0.0033
0.0048
0.0073
0.0092
0.012
0.013
0.017
0.027
0.035
0.053
0.081
0.120
0.135
0.178
0.273
0.416
0.543
0.790
1.200
1.360
1.780
Technical Data 4319
Effective February 2014
Part
Number
6
DRA125-R47-R
DRA125-1R0-R
DRA125-1R5-R
DRA125-2R2-R
DRA125-3R3-R
DRA125-4R7-R
DRA125-6R8-R
DRA125-8R2-R
DRA125-100-R
DRA125-150-R
DRA125-220-R
DRA125-330-R
DRA125-470-R
DRA125-680-R
DRA125-820-R
DRA125-101-R
DRA125-151-R
DRA125-221-R
DRA125-331-R
DRA125-471-R
DRA125-681-R
DRA125-821-R
DRA125-102-R
OCL
1
±20% (µH)
0.45
0.85
1.41
2.12
2.89
4.90
6.23
7.49
9.22
14.67
20.65
31.47
47.83
68.48
80.86
97.60
150.0
222.8
325.1
466.3
683.3
813.6
992.8
I
rms2
(Amps)
14.7
12.7
12.9
10.6
8.63
7.67
6.81
6.41
5.57
4.45
3.95
3.19
2.59
2.13
2.01
1.75
1.41
1.14
1.00
0.826
0.673
0.632
0.552
I
sat
1
3
(Amps)
33.2
23.7
18.4
15.1
12.8
9.76
8.74
7.90
7.22
5.72
4.74
3.86
3.13
2.64
2.41
2.21
1.79
1.47
1.19
1.01
0.834
0.758
0.695
I
sat
2
4
(Amps)
26.6
19.0
14.8
12.1
10.2
7.81
6.99
6.32
5.77
4.58
3.79
3.09
2.51
2.11
1.93
1.77
1.43
1.18
0.96
0.805
0.667
0.606
0.556
DCR (Ω)
@ 25°C
Maximum
0.0030
0.0042
0.0039
0.0058
0.0087
0.011
0.014
0.016
0.021
0.033
0.042
0.064
0.097
0.144
0.162
0.214
0.330
0.500
0.650
0.950
1.440
1.630
2.130
K-Factor
5
176.9
126.4
98.3
80.4
68.0
52.0
46.6
42.1
38.5
30.5
25.3
20.6
16.7
14.0
12.8
11.8
9.5
7.8
6.4
5.4
4.4
4.0
3.7
1. Open Circuit Inductance (OCL) Test Parameters: 100kHz, 0.25V
rms
, 0.0Adc @
25°C
2. I
rms
: DC current for an approximate temperature rise of 40°C without core loss.
Derating is necessary for AC currents. PCB layout, trace thickness and width,
air-flow and proximity of other heat generating components will affect the
temperature rise. It is recommended that the temperature of the part not exceed
165°C under worst case operating conditions verified in the end application.
3. I
sat
1: Peak current for approximately 30% rolloff at +25°C.
4. I
sat
2: Peak current for approximately 40% rolloff at +125°C.
5. K-factor: Used to determine Bp-p for core loss (see graph). B
p-p
= K * L *
∆I.
B
p-p
:(Gauss), K: (K-factor from table), L: (Inductance in µH),
∆I
(peak-to-peak ripple
current in amps).
6. Part Number Definition: DRAxxx-yyy-R
• DRAxxx = Product code and size
• yyy= Inductance value in µH, R = decimal point,
if no R is present then third character = number of zeros.
• -R suffix = RoHS compliant1
www.eaton.com/elx
5
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