SD52-470 ETC, SD52-470 Datasheet - Page 3

• Manufacturer Part Number: SD52-470
• Description: High Power Density, Low Profile, Shielded Inductors
• Manufacturer: ETC

(1) Open Circuit Inductance Test Parameters: 100KHz, 0.25Vrms, 0.0Adc.
(2) RMS current for an approximate ∆T of 40°C without core loss. It is
(3) Peak current for approximate 30% roll off at 20°C.
Mechanical Diagrams
SD Series
Part Number
SD25-3R3
SD25-4R7
SD25-6R8
SD25-8R2
SD25-100
SD25-150
SD25-220
SD25-330
SD25-470
SD25-680
SD25-820
SD25-101
SD25-151
SD25-221
SD25-331
SD25-471
SD25-681
SD25-821
SD25-102
Part marking
recommended that the temperature of the part not exceed 125°C.
(Note A)
identifier
Pin # 1
TOP VIEW
Series
SD10
SD12
SD18
SD20
SD25
Max
2
1
5.2
Inductance
Rated
1000
(µH)
3.30
4.70
6.80
8.20
10.0
15.0
22.0
33.0
47.0
68.0
82.0
100
150
220
330
470
680
820
Max
5.2
a
1.0mm max
1.2mm max
1.8mm max
2.0mm max
2.5mm max
(see chart below)
SIDE VIEW
HT
HT
OCL (1)
+/-20%
100.79
1003.4
10.35
14.45
22.81
33.07
47.89
68.64
82.17
148.4
222.4
332.2
472.4
677.2
826.7
(µH)
3.43
5.03
6.93
7.99
BOTTOM VIEW
1
2
A) Part Marking: Line 1: (1st digit indicates the inductance value per part marking
Marking
designator in chart above)
(2nd digit is a bi-weekly production date code)
(3rd digit is the last digit of the year produced)
Line 2: 12 (indicates the product size code)
Part
W
1.5 Typ.
G
M
O
Q
H
K
N
P
R
S
U
V
X
Y
F
J
L
T
Ref.
(4) DCR limits @ 20°C.
5) Applied Volt-Time product (V-uS) across the inductor at 100kHz necessary to
1.0
Amperes
Irms (2)
generate a core loss equal to 10% of the total losses for 40°C temperature rise.
0.919
0.741
0.713
0.670
0.553
0.446
0.359
0.293
0.262
0.230
0.216
2.64
2.39
2.19
1.92
1.80
1.67
1.34
1.11
2 PAD LAYOUT
5.15
RECOMMENDED PCB LAYOUT
2.575
2
2.975
2
Low Profile, Shielded Inductors
Amperes
5.95
Isat (3)
0.857
0.711
0.592
0.482
0.441
0.398
0.328
0.268
0.219
0.184
0.154
0.139
0.126
9
R2.250
2.21
1.83
1.56
1.45
1.27
1.08
4 PAD LAYOUT
5.950
High Power Density,
DCR (4)
0.0384
0.0467
0.0556
0.0724
0.0824
0.0956
0.1478
0.2149
0.3156
0.4850
0.5242
0.5937
0.8723
2.975
2
Typ.
1.34
2.07
3.10
3.88
5.04
5.70
(Ω)
2.975
R2.250
5.950
9
SD Series
SCHEMATIC
2
u-sec
10.03
11.86
14.90
17.94
21.58
25.84
28.27
31.31
38.00
46.51
56.85
67.79
81.17
89.68
98.80
1
Typ.
5.78
6.99
8.21
8.82
Volt
®