Delta SIR74 - Manual
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1. Tolerance of inductance: 20% for 10~27uH, 15% for 33~68uH.
2. Irated is the DC current which cause the inductance drop 10% typical of its nominal inductance without current
and the surface temperature of the part increase less than 45
3. Operating temperature : -20
to 105
(including self-temperature rise).
o
C.
o
o
C
C
SMT Power Inductor
S I R 7 4 Ty p e
DELTA ELECTRONICS, INC.
(TAOYUAN PLANT CPBG)
1 5
252, SAN YING ROAD, KUEISAN INDUSTRIAL ZONE, TAOYUAN SHIEN, 333, TAIWAN, R.O.C.
TEL: 886-3-3591968; FAX: 886-3-3591991
http://www.deltaww.com
Features
R o H S c o m p l i a n t .
L o w p r o f i l e ( 3 . 5 m m m a x . h e i g h t ) S M D t y p e .
M a g n e t i c a l l y s h i e l d e d , s u i t a b l e f o r h i g h d e n s i t y m o u n t i n g .
S e l f - l e a d s , s u i t a b l e f o r h i g h d e n s i t y m o u n t i n g .
H i g h e n e r g y s t o r a g e a n d l o w D C R .
P r o v i d e d w i t h e m b o s s e d c a r r i e r t a p e p a c k i n g .
I d e l f o r p o w e r s o u r c e c i r c u i t s , D C - D C c o n v e r t e r , D C - A C i n v e r t e r s
i n d u c t o r a p p l i c a t i o n s .
I n a d d i t i o n t o t h e s t a n d a r d v e r s i o n s s h o w n h e r e , c u s t o m i z e d i n d u c t o r s
a r e a v a i l a b l e t o m e e t y o u r e x a c t r e q u i r e m e n t s .
Electrical Characteristics:
0.01
0.10
1.00
10.00
CURRENT (A)
1.00
10.00
100.00
IN
D
U
C
T
A
N
C
E
(u
H
)
100
120
150.
180
220
270
330
470
560
680
390
25
100KHz, 0.1V
o
C,
SIR74 - 100
10
0.140
1.00
SIR74 - 120
12
0.160
0.94
SIR74 - 150
15
0.180
0.86
SIR74 - 180
18
0.250
0.78
SIR74 - 220
22
0.320
0.76
SIR74 - 270
27
0.360
0.64
SIR74 - 330
33
0.410
0.61
SIR74 - 390
39
0.470
0.53
SIR74 - 470
47
0.510
0.50
SIR74 - 560
56
0.720
0.46
SIR74 - 680
68
0.820
0.42
PART NO.
DCR
( ) MAX
2
Irated
(Adc)
1
1
L
(uH)
2.25
1.7
6.2
C
A
B
5.5
Mechanical Dimension:
U N I T : m m / i n c h
A = 6 . 2 0 . 3 / 0 . 2 4 4 0 . 0 1 2
B = 5 . 6 0 . 3 / 0 . 2 2 0 0 . 0 1 2
C = 3 . 2 0 . 3 / 0 . 1 2 6 0 . 0 1 2
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