SMT POWER INDUCTORS
E & E Magnetic Products Limited
Toroid Type
Inductance range: 9.4mH to 439mH
Current Rating: up to 3.8A
Footprint: 12.7mm x 12.7mm maximum
Height: 5.5mm maximum
Operating temperature -40°C to +130°C
RoHS compliant
E
LECTRICAL
S
PECIFICATION @
25°C
Part
Number
831-02776F
831-02777F
831-02778F
831-02224F
831-02779F
831-02780F
831-02781F
831-02782F
831-02783F
831-02784F
Inductance
@Irated
(mH Typ)
9.4
13.3
23
50
75
90
137
200
305
439
Irated
(A)
3.80
3.13
2.43
1.65
1.35
1.23
0.99
0.81
0.65
0.53
DCR
(mW Max)
31
46
75
139
208
283
445
673
972
1520
ET
(V-msec)
15.2
18.8
24.3
37.0
44.3
49.2
59.4
71.3
85.8
99.6
Inductance
@0Adc
(mH±20%)
10.4
14.6
25
56
83
100
152
220
331
472
100 Gauss
ET
100
(V-msec)
2.65
3.13
4.10
6.15
7.47
8.19
10.12
12.17
14.94
17.83
1 Amp DC
H
1
(Orsted)
11.95
14.12
18.46
27.69
33.67
36.93
45.61
54.85
67.34
80.37
Notes:
1. For the copper loss(mW), calculate I
DC
2
x R
N
.
2. The part temperature (ambient temperature + temperature rise) should not exceed the upper limit of the operating
temperature under worst case operating conditions. Circuit design, component placement, PWB trace size and
thickness, airflow and other cooling provisions all affect the part temperature. Part temperature should be verified
in the end application.
1/F., Harbour View 1, No.12 Science Park East Avenue, Phase II, Hong Kong Science Park, Shatin, N.T. Hong Kong
Tel: (852) 2954 3333
Fax: (852) 2954 3304
1
PI119(01)
Revised in 0９/１２
SMT POWER INDUCTORS
E & E Magnetic Products Limited
Toroid Type
S
CHEMATICS
M
ECHANICAL
D
IMENSIONS
.500
12.70 Max
.060
1.52 x2
.500
12.70 Max
EE
831-02XXX
(DATE)
.390±
.015
9.91±
0.38
.470
11.94
.400
10.16
Suggested
PCB Layout
.215
5.46 Max
REFERENCE OR
GAUGE PLANE
Notes:
inches
3. All dimensions are specified in mm with higher precedence in inches.
4. U
nless otherwise specified, all tolerances are
±
.010
.
0.25
Weight (in gram)
Tape & Reel
:
:
1.5 typ.
500 / reel
S
CHEMATICS
1
2
FOR MORE INFORMATION, PLEASE CONTACT
HEADQUARTER
1/F., Harbour View 1, No.12 Science Park East Avenue,
Phase II, Hong Kong Science Park, Shatin, N.T.
Hong Kong
Tel: (852) 2954 3333 Fax: (852) 2954 3304
Email: eempl@eleceltek.com
Website: http://www.eleceltek.com / www.eemagnetic.com
Information herein is for reference only and subject to change without notice. It does not constitute any representation, warranty or commitment of the company in respect
of the products in any aspect. All logos, brands and product names mentioned herein are trademarks or registered trademarks of their respective owners. The company
does not assume any liability arising out of the application or use of any product or circuit described herein. Copyrights 2009, E & E Magnetic Products Limited.
1/F., Harbour View 1, No.12 Science Park East Avenue, Phase II, Hong Kong Science Park, Shatin, N.T. Hong Kong
Tel: (852) 2954 3333
Fax: (852) 2954 3304
2
PI119(01)
Revised in 0９/１２
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