Delta Electronics Power Supply SIR74 User Manual

SMT Power Inductor  
SIR74 Type  
Features  
RoHS compliant.  
Low profile (3.5mm max. height) SMD type.  
Magnetically shielded, suitable for high density mounting.  
Self-leads, suitable for high density mounting.  
High energy storage and low DCR.  
Provided with embossed carrier tape packing.  
Idel for power source circuits, DC-DC converter, DC-AC inverters  
inductor applications.  
In addition to the standard versions shown here, customized inductors  
are available to meet your exact requirements.  
Mechanical Dimension:  
RECOMMENDED PAD PATTERNS  
C
B
5.5  
2.25  
1.7  
UNIT:mm/inch  
A = 6.2 0.3 / 0.244 0.012  
B = 5.6 0.3 / 0.220 0.012  
C = 3.2 0.3 / 0.126 0.012  
A
6.2  
o
Electrical Characteristics:  
25 C, 100KHz, 0.1V  
1
2
1
DCR  
L
Irated  
(Adc)  
PART NO.  
(uH)  
100.00  
10.00  
1.00  
(
) MAX  
0.140  
0.160  
0.180  
0.250  
0.320  
0.360  
0.410  
0.470  
0.510  
0.720  
0.820  
SIR74 - 100  
SIR74 - 120  
SIR74 - 150  
SIR74 - 180  
SIR74 - 220  
SIR74 - 270  
SIR74 - 330  
SIR74 - 390  
SIR74 - 470  
SIR74 - 560  
SIR74 - 680  
10  
12  
15  
18  
22  
27  
33  
39  
47  
56  
68  
1.00  
0.94  
0.86  
0.78  
0.76  
0.64  
0.61  
0.53  
0.50  
0.46  
0.42  
680  
560  
470  
390  
330  
270  
220  
180  
150.  
120  
100  
0.01  
0.10  
1.00  
10.00  
CURRENT (A)  
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 45oC.  
3. Operating temperature : -20oC to 105oC (including self-temperature rise).  
DELTA ELECTRONICS, INC.  
(TAOYUAN PLANT CPBG)  
252, SAN YING ROAD, KUEISAN INDUSTRIAL ZONE, TAOYUAN SHIEN, 333, TAIWAN, R.O.C.  
TEL: 886-3-3591968; FAX: 886-3-3591991  
15  
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