BOURNS PM428S-121-RC

PL
IA
NT
Features
Applications
CO
M
■ Formerly
model
■ Input/output of DC/DC converters
*R
oH
S
■ Height of 3.0 mm max.
■ Power supplies for:
■ Current rating up to 3.1 A
•
•
•
•
■ RoHS compliant*
Portable communication equipment
Camcorders
LCD TVs
Car radios
PM428S Series - Shielded SMD Power Inductor
Electrical Specifications
General Specifications
Inductance 100 kHz
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
12
15
18
22
27
33
39
47
56
68
82
100
120
150
180
Tol. %
±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
Test
Q
Frequency
Ref.
(MHz)
9.34
7.96
9.18
7.96
9.24
7.96
8.64
7.96
7.72
7.96
8.58
7.96
8.12
7.96
9.56
7.96
9.624
7.96
8.24
7.96
11.26
2.52
11.26
2.52
9.66
2.52
11.64
2.52
8.26
2.52
10.76
2.52
9.7
2.52
9.74
2.52
10.88
2.52
9
2.52
8.42
2.52
8.6
2.52
8.78
0.796
13.32
0.796
11.72
0.796
13.86
0.796
SRF
Typ.
(MHz)
176
146
111
92
76
56
55
69
77
45
34
25
27
25
23
18
16
14
13
13
11
8
9
8
6
7
DCR
Max.
(mΩ)
20
25
28
30
35
60
70
85
90
100
110
125
150
160
185
200
230
250
280
320
400
520
600
700
860
1000
Irms
(A)
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
Isat
(A)
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
Test Voltage .................... 0.1 V, 100 KHz
Reflow Soldering ....230 ˚C; 50 sec max.
Operating Temperature
................................-40 °C to +125 °C
(Temperature rise included)
Storage Temperature .. -40 °C to +125 °C
Resistance to Soldering Heat
............................... 260 °C for 10 sec.
Materials
Core Material ................................Ferrite
Wire ...........................Enameled Copper
Adhesive .............................Epoxy Resin
Terminal ....................................Ag/Ni/Sn
Rated Current .......Ind. drop of 35 % typ.
at Isat
Temperature Rise ....... 30 ˚C typ. at Irms
Packaging .................. 2000 pcs. per reel
Product Dimensions
4.80 ± 0.20
(.189 ± .008)
4.80 ± 0.20
(.189 ± .008)
6R8
2.80 ± 0.20
(.110 ± .008)
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
220°C
Temperature (°C)
190°C
Ramp Down
6°C/second
maximum
60 - 90
seconds
175
1.60
(.063)
TYP.
150°C
Recommended Layout
125
120 - 150 seconds
5.30
REF.
(.209)
10 seconds minimum
2.00
(.079)
REF.
75
Ramp Up
3°C/second maximum
R
25
0
50
100
150
200
250
Time (seconds)
300
1.80
(.071)
REF.
REF.
1.50
(.059)
Rev. 02/22/05
2.00
(.079)
REF.
*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.
Customers should verify actual device performance in their specific applications.
DIMENSIONS:
MM
(INCHES)
PM428S Series - Shielded SMD Power Inductor
Inductance vs. Current
Electrical Schematic
7
5
561
3
Inductance (µH)
2
151
102
7
5
3
330
2
101
7
100
5
4R7
3
LCR METER
2
100
1R2
7
101
2
3
7 102
5
2
3
5
7 103
2
3
5
7 104
DC Current (mA)
Packaging Specifications
2.0 ± 0.5
(.079 ± .020)
178.0
(7.00)
DIA.
16.5
(.650)
DIA.
13.0
(.511)
21.0 ± 0.8
(.827 ± .032)
50.0 - 0
(1.969 - 0)
13.0
DIA.
(.511)
14.0 + 0
(.551 + 0)
8.0
(.315)
END
6R8
4.0
(.157)
6R8
6R8
NO COMPONENT
200
(7.87)
6R8
NO COMPONENT
COMPONENTS
USER DIRECTION OF FEED
REV. 03/11
START
QTY: 2000 PCS. PER REEL
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
400
(15.75)
DIMENSIONS:
MM
(INCHES)