Features
Applications
■ Formerly
model
■ Input/output of DC/DC converters
■ Power supplies for:
• Portable communication equipment
• Camcorders
■ Height of 3.0 mm max.
■ Current rating up to 3.1 A
■ RoHS compliant*
• LCD TVs
• Car radios
PM428S Series - Shielded SMD Power Inductor
Electrical Specifications
General Specifications
Test Voltage....................0.1 V, 100 KHz
Inductance 100 kHz
Test
SRF
DCR
Max.
Reflow Soldering ....230 ˚C; 50 sec max.
Operating Temperature
Q
Frequency Typ.
Irms
(A)
Isat
(A)
Bourns Part No.
PM428S-1R2-RC
PM428S-1R8-RC
PM428S-2R2-RC
PM428S-2R7-RC
PM428S-3R3-RC
PM428S-3R9-RC
PM428S-4R7-RC
PM428S-5R6-RC
PM428S-6R8-RC
PM428S-8R2-RC
PM428S-100-RC
PM428S-120-RC
PM428S-150-RC
PM428S-180-RC
PM428S-220-RC
PM428S-270-RC
PM428S-330-RC
PM428S-390-RC
PM428S-470-RC
PM428S-560-RC
PM428S-680-RC
PM428S-820-RC
PM428S-101-RC
PM428S-121-RC
PM428S-151-RC
PM428S-181-RC
(µH)
1.2
1.8
2.2
2.7
3.3
3.9
4.7
5.6
6.8
8.2
10
Tol. % Ref.
(MHz)
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
7.96
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
2.52
0.796
0.796
0.796
0.796
(MHz) (mΩ)
................................-40 °C to +125 °C
(Temperature rise included)
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
9.34
9.18
9.24
8.64
7.72
8.58
8.12
9.56
9.624
8.24
11.26
11.26
9.66
11.64
8.26
10.76
9.7
9.74
10.88
9
8.42
8.6
8.78
13.32
11.72
13.86
176
146
111
92
76
56
55
69
77
45
34
25
27
25
23
18
16
14
13
13
11
8
20
25
3.10
2.70
2.50
2.35
2.15
1.72
1.55
1.38
1.30
1.25
1.19
1.12
1.03
0.98
0.93
0.89
0.82
0.80
0.75
0.70
0.63
0.56
0.51
0.47
0.42
0.39
2.56
2.20
2.05
1.80
1.65
1.50
1.30
1.20
1.15
1.05
1.00
0.85
0.78
0.75
0.72
0.60
0.58
0.50
0.48
0.41
0.36
0.32
0.30
0.28
0.26
0.23
Storage Temperature .. -40 °C to +125 °C
Resistance to Soldering Heat
28
30
...............................260 °C for 10 sec.
35
Materials
60
Core Material................................Ferrite
Wire ...........................Enameled Copper
Adhesive.............................Epoxy Resin
Terminal....................................Ag/Ni/Sn
Rated Current.......Ind. drop of 35 % typ.
at Isat
70
85
90
100
110
125
150
160
185
200
230
250
280
320
400
520
600
700
860
1000
12
Temperature Rise....... 30 ˚C typ. at Irms
Packaging..................2000 pcs. per reel
15
18
22
Product Dimensions
27
4.80 0.20
(.189 .008)
33
39
47
4.80 0.20
(.189 .008)
56
6R8
68
82
100
120
150
180
9
8
6
2.80 0.20
(.110 .008)
7
1.60
(.063)
TYP.
Soldering Profile
275
<1> Maximum of 10 seconds between
+255°C and +260°C
260°C peak
<1> 255°C
TYP.
1.60
(.063)
225
175
125
75
220°C
Ramp Down
6°C/second
maximum
190°C
1.60
(.063)
TYP.
60 - 90
seconds
150°C
Recommended Layout
120 - 150 seconds
5.30
2.00
(.079)
REF.
REF.
10 seconds minimum
(.209)
Ramp Up
3°C/second maximum
1.80
(.071)
REF.
R
25
0
50
100
150
200
250
300
REF.
1.50
(.059)
Rev. 02/22/05
Time (seconds)
2.00
(.079)
REF.
MM
DIMENSIONS:
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
(INCHES)
Customers should verify actual device performance in their specific applications.