Technical Data 4372
Effective January 2018
Supersedes September 2017
DRAQ127
Automotive grade
Dual winding, high power density shielded drum core
power inductors
Product features
AEC-Q200 qualified
Dual winding inductors that can be used
as a single inductor, SEPIC, Flyback, or
other coupled inductor/transformer
applications (1:1 turns ratio)
Windings can be connected in series or
parallel, offering a wide range of
inductance and current ratings
200 Vac isolation between windings
12.5 mm x 12.5 mm x 8.0 mm surface
mount package
Mechanical secure mounting for high
shock and vibration environments
Ferrite core material
Moisture Sensitivity Level (MSL): 1
Applications
Body electronics
oHeadlamps, tail lamps and interior
lighting
oHeating Ventilation and Air Conditioning
controllers (HVAC)
oDoors, window lift and seat control
Advanced driver assistance systems
oAdaptive cruise control (ACC)
oCollision avoidance system
oCar black box system
Infotainment and cluster electronics
oAudio subsystem: head unit and trunk
amp
oDigital instrument cluster
oIn-Vehicle Infotainment (IVI) and
navigation
Chassis and safety electronics
oElectronic Stability Control system (ESC)
oElectric parking brake
oElectronic Power Steering (EPS)
Engine and powertrain systems
oDiesel/gasoline engine management
oPowertrain Control Module (PCM)/
Engine Control Unit (ECU)
oTransmission Control Unit (TCU)
Environmental Data
Storage temperature range (Component):
-40 °C to +165 °C
Operating temperature range: -40 °C to +165 °C
(ambient plus self-temperature rise)
Solder reflow temperature:
J-STD-020 (latest revision) compliant
Pb
HALOGEN
HF
FREE
2
www.eaton.com/electronics
DRAQ127
Automotive grade
Dual winding, high power density shielded drum core power inductors
Dimensions - mm
Technical Data 4372
Effective January 2018
Product specifications
1. Open Circuit Inductance (OCL) Test Parameters: 100 kHz, 0.25 Vrms, 0.0
Adc
2. Irms: 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. Isat1: Peak current for approximately 30% rolloff at +25 °C.
4. Isat2: Peak current for approximately 40% rolloff at +125 °C.
5. K-factor: Used to determine Bp-p for core loss (see graph). Bp-p = K * L * I.
Bp-p:(Gauss), K: (K-factor from table), L: (Inductance in µH), I (Peak-to-peak
ripple current in Amps).
6. Part Number Definition: DRAQxxx-xxx-R
- DRAQxxx = Product code and size
- xxx= Inductance value in uH, R = decimal point, If no R is present then 3rd
digit equals number of zeros.
- “-R” suffix = RoHS compliant
1
3
2
4
Dual Inductor
1
3
2
4
Series Mode
1
3
2
4
Parallel Mode
L1 L2 L1 L2 L1 L2
Part Number6
Parallel Ratings Series Ratings
OCL1
±25%
(μH)
Irms
2
(A)
Isat13
(A)
Isat24
(A)
DCR (Ω)
@ +20 °C
(Typ.)
DCR (Ω)
@ +20 °C
(Max.) K-Factor5
OCL1
±25%
(μH)
Irms
2
(A)
Isat13
(A)
Isat24
(A)
DCR (Ω)
@ +20 °C
(Typ.)
DCR (Ω)
@ +20 °C
(Max.) K-Factor5
DRAQ127-100-R 9.63 6.02 11.2 8.96 0.018 0.022 24.0 38.5 3.01 5.60 4.48 0.072 0.089 12.0
DRAQ127-150-R 14.9 4.83 9.03 7.23 0.027 0.032 19.4 59.6 2.41 4.52 3.61 0.108 0.128 9.70
DRAQ127-220-R 22.0 3.98 7.57 6.05 0.040 0.047 16.2 88.0 1.99 3.79 3.03 0.162 0.192 8.10
DRAQ127-330-R 32.0 3.22 6.22 4.98 0.060 0.072 13.3 128.0 1.61 3.11 2.49 0.240 0.288 6.65
DRAQ127-470-R 47.9 2.62 5.09 4.07 0.091 0.110 10.9 192.0 1.31 2.54 2.03 0.364 0.440 5.45
Top view
Front view
Bottom view
Part Marking: DRAQ127, ### = inductance value in µH, R = decimal point; if no R is present, then 3rd digit equals number of zeros wwllyy = Date code,
R = revision level
All soldering surfaces to be coplanar within 0.10 millimeters
Tolerances are ± 0.2 millimeters unless stated otherwise.
Do not route traces or vias underneath the inductor
*Special Characteristic epoxy protrusion or any flashing from the plastic on the header/base can be below the terminal surface and must not exceed 0.08
mm beyond the bottom surface of the terminal.
Recommended pad layout
Schematic
3
Technical Data 4372
Effective January 2018
www.eaton.com/electronics
DRAQ127
Automotive grade
Dual winding, high power density shielded drum core power inductors
Packaging information - mm
DRAQ127
-xxx
wwllyy R
Temperature rise vs. total loss
0
10
20
30
40
50
60
70
80
0.100.2.300.4.500.6.700.8.901.111.2.311.4.51
Total Loss (W)
Temp. Rise(
°C
)
Supplied in tape and reel packaging, 350 parts per 13” diameter reel.
4
www.eaton.com/electronics
Technical Data 4372
Effective January 2018
Core loss vs. Bp-p
DRAQ127
Automotive grade
Dual winding, high power density shielded drum core power inductors
Inductance characteristics
100kHz
200kHz
300kHz
500kHz
1MHz
0.01
0.1
1
10
100000110,0 00
Bp-p (Gauss)
Core Loss (W)
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
110%
120%
0% 10% 20% 30%40% 50% 60% 70%80% 90%100%110%120%130% 140%
% of Isat1
% of OCL
-4 0°C
+2 5°C
+8 5°C
+1 25°C
% of OCL vs. % of Isat1
© 2018 Eaton
All Rights Reserved
Printed in USA
Publication No. 4372 BU-MC17081
January 2018
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
Technical Data 4372
Effective January 2018
Life Support Policy: Eaton does not authorize the use of any of its products for use in life support devices or systems without the express written
approval of an officer of the Company. Life support systems are devices which support or sustain life, and whose failure to perform, when properly
used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user.
Eaton reserves the right, without notice, to change design or construction of any products and to discontinue or limit distribution of any products. Eaton also
reserves the right to change or update, without notice, any technical information contained in this bulletin.
Eaton
Electronics Division
1000 Eaton Boulevard
Cleveland, OH 44122
United States
www.eaton.com/electronics
Temperature
t
tP
ts
TC -5°C
Time 25°C to Peak Time
25
°C
Tsmin
Tsmax
TL
TP
Preheat
A
Max. Ramp Up Rate = C/s
Max. Ramp Down Rate = C/s
Reference JDEC J-STD-020
Profile Feature Standard SnPb Solder Lead (Pb) Free Solder
Preheat and Soak • Temperature min. (Tsmin) 100°C 150°C
• Temperature max. (Tsmax) 150°C 200°C
• Time (Tsmin to Tsmax) (ts)60-120 Seconds 60-120 Seconds
Average ramp up rate Tsmax to Tp3°C/ Second Max. 3°C/ Second Max.
Liquidous temperature (Tl)
Time at liquidous (tL)
183°C
60-150 Seconds
217°C
60-150 Seconds
Peak package body temperature (TP)* Table 1 Table 2
Time (tp)** within 5 °C of the specified classification temperature (Tc)20 Seconds** 30 Seconds**
Average ramp-down rate (Tp to Tsmax)6°C/ Second Max. 6°C/ Second Max.
Time 25°C to Peak Temperature 6 Minutes Max. 8 Minutes Max.
* Tolerance for peak profile temperature (Tp) is defined as a supplier minimum and a user maximum.
** Tolerance for time at peak profile temperature (tp) is defined as a supplier minimum and a user maximum.
Table 1 - Standard SnPb Solder (Tc)
Package
Thickness
Volume
mm3
<350
Volume
mm3
350
<2.5mm) 235°C 220°C
2.5mm 220°C 220°C
Table 2 - Lead (Pb) Free Solder (Tc)
Package
Thickness
Volume
mm3
<350
Volume
mm3
350 - 2000
Volume
mm3
>2000
<1.6mm 260°C 260°C 260°C
1.6 – 2.5mm 260°C 250°C 245°C
>2.5mm 250°C 245°C 245°C
DRAQ127
Automotive grade
Dual winding, high power density shielded drum core power inductors
Solder reflow profile