Delta Electronics Power Supply HAH842 User Manual

SMT Power Inductor  
HAH842 Typ e  
Features  
RoHS compliant.  
Low profile, SMD type.  
High current.  
Magnetic shielded.  
High energy storage and low DCR.  
Provided with embossed carrier tape packing.  
Ideal 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 Dimens ion :  
RECOMMENDED PAD PATTERNS  
7.37 / 0.290  
A
C
E
UNIT : mm/inch  
A = 7.50 / 0.295 Ma x.  
B = 7.00 /0.276 Ma x.  
C = 4.20 /0.165 Ma x.  
D = 1.20 0.2 / 0.047 0.008  
E = 1.50 0.254 / 0.059 0.01  
D
3.43 / 0.135  
B
3.71 / 0.146  
O
Electrical Characteris tics :  
At 25 C , 100KHz, 1V  
1
2
3
DCR  
(m ) MAX  
Lo  
(uH)  
Li  
(uH)  
Is a t  
Irm s  
(Adc)  
(Adc)  
HAH842-3R3  
HAH842-4R7  
HAH842-6R8  
HAH842-8R2  
HAH842-100  
3.3  
4.7  
2.64  
3.76  
5.44  
6.56  
7.50  
30  
40  
13.5  
10.0  
8.0  
6.0  
5.5  
4.5  
4.0  
3.0  
6.8  
60  
8.2  
68  
7.5  
10.0  
105  
5.0  
1. Lo is the initial inductance and the tolerance of inductance is 20%.  
2. Isat is the DC current which cause the inductance drop to Li.  
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3. Irms is the DC current which cause the surface temperature of the part increase less than 45 C.  
O
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4. Operating temperature : -40 C to 125 C ( 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  
87  
 

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