DRA74-101-R Cooper/Bussmann, DRA74-101-R Datasheet - Page 3

• Manufacturer Part Number: DRA74-101-R
• Description: Power Inductors 100uH 0.929A 0.419ohms
• Manufacturer: Cooper/Bussmann
• Series: DRA74r

Specifications of DRA74-101-R

• Product: Inductors
• Inductance: 100 uH
• Tolerance: 20 %
• Maximum Dc Current: 0.822 Amp
• Maximum Dc Resistance: 0.419 Ohms
• Dimensions: 7.6 mm W x 7.6 mm L x 4.35 mm H
• Shielding: Shielded
• Operating Temperature Range: - 40 C to + 165 C
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Magnetics Solutions
For Automotive Applications
(1) Open Circuit Inductance test parameters: 100kHz, 0.25V, 0.0Adc,
(2) Irms: DC current for an approximate ∆T of 40°C without core loss. Derating is
(3) Isat Amperes peak for approximately 30% rolloff (@25°C)
(4) Isat Amperes peak for approximately 40% rolloff (@125°C)
Mechanical Diagrams
DRA73 Series
Dimensions in Millimeters.
Part Number
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
DRA127-R47-R
DRA127-1R0-R
DRA127-1R5-R
DRA127-2R2-R
DRA127-3R3-R
DRA127-4R7-R
DRA127-6R8-R
DRA127-8R2-R
DRA127-100-R
DRA127-150-R
DRA127-220-R
DRA127-330-R
DRA127-470-R
DRA127-680-R
DRA127-820-R
DRA127-101-R
DRA127-151-R
DRA127-221-R
DRA127-331-R
DRA127-471-R
DRA127-681-R
DRA127-821-R
DRA127-102-R
tolerance is ±20%
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.
2.00
BOTTOM VIEW
Inductance
Rated
1000
1000
15.0
22.0
33.0
47.0
68.0
82.0
0.47
1.00
1.50
2.20
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
100
150
220
330
470
680
820
1.5
7.6 Max
FRONT VIEW
OCL (1)
+/-20%
14.67
20.65
31.47
47.83
68.48
80.86
150.0
222.8
325.1
466.3
683.3
813.6
992.8
0.413
0.772
14.90
21.47
32.01
47.91
68.22
83.91
100.8
151.2
219.8
328.3
474.5
676.6
824.6
998.7
7.6 Max
97.6
1.27
1.92
3.51
4.58
6.72
8.33
9.63
µH
Max
3.55
Amperes
Irms (2)
2.125
2.005
1.745
1.409
1.142
0.998
0.826
0.673
0.632
0.552
22.50
19.22
15.32
12.52
2.333
2.008
1.888
1.524
1.253
1.011
0.827
0.736
0.637
0.598
4.45
3.95
3.19
2.59
9.59
8.14
7.32
6.33
6.02
4.83
3.98
3.22
2.62
2
TOP VIEW
wwllyy R
###
(5) DCR limits @ 25°C
(6) K-factor: Used to determine B p-p for core loss (see graph).
(7) Part Number Definition: DRAxxx-xxx-R
Amperes
Isat (3)
B p-p = K*L*∆I, B p-p(mT), K: (K factor from table), L: (Inductance in µH),
∆I (Peak to peak ripple current in Amps).
DRAxxx = Product code and size; -xxx = Inductance value in uH;
R = decimal point; If no R is present, third character = # of zeros.
-R suffix = RoHS compliant
2.635
2.406
2.213
1.785
1.469
1.194
1.006
0.834
0.758
0.695
5.72
4.74
3.86
3.13
56.0
40.0
31.1
25.5
18.7
16.5
13.3
12.2
11.2
9.03
7.57
6.22
5.09
4.18
3.84
3.46
2.83
2.35
1.93
1.62
1.33
1.22
1.10
1
RECOMMENDED PCB LAYOU T
High Efficiency, Shielded Inductors
3.25
Amperes
Isat (4)
2.506
2.108
1.925
1.771
1.428
1.175
0.955
0.805
0.667
0.606
0.556
14.93
13.18
10.67
0.978
0.878
2.50
4.58
3.79
3.09
44.8
32.0
24.9
20.4
9.74
8.96
7.23
6.05
4.98
4.07
3.34
3.07
2.77
2.26
1.88
1.54
1.29
1.06
8.50
### = Inductance value in uH. R = decimal point.
If no R is present third character = # of zeros
High Power Density,
wwllyy = (date code) R = revision level
DCR (5)
0.0012
0.0017
0.0027
0.0040
0.0068
0.0094
0.027
0.035
0.053
0.081
0.120
0.135
0.178
0.273
0.416
0.543
0.012
0.016
0.017
0.027
0.040
0.060
0.091
0.115
0.155
0.175
0.269
0.398
0.612
Typ.
0.79
1.20
1.36
1.78
0.91
1.15
1.54
1.75
(Ω)
SCHEMATIC
2
1
DRA Series
K-factor (6)
14.3
10.2
2.9
2.4
1.9
1.6
1.3
1.2
1.1
0.9
0.7
0.6
0.5
0.4
0.4
0.4
7.9
6.5
4.8
4.2
3.4
3.1
2.9
2.3
1.9
1.6
1.3
1.1
1.0
0.9
0.7
0.6
0.5
0.4
0.3
0.3
0.3