SMT Power Inductors
Shielded Toroid Series - Ros1/Ros2 Series
Height:
3.2mm and 5.3mm Max
Footprint:
8.1mm x 5.3mm and 14.mm x 10.2mm
Current Rating:
up to 5A
Inductance Range:
.51µH to 357µH
Electrical Specifications @ 25°C - Operating Temperature -40°C to +130°C
Pulse
Part
Number
Ros 1 Series
P0430NL
P0432NL
P0435NL
P0438NL
P0439NL
P0441NL
P0445NL
P0446NL
Ros 2 Series
P0450NL
P0452NL
P0453NL
P0454NL
P0456NL
P0460NL
P0461NL
P0462NL
P0463NL
P0465NL
P0466NL
P0467NL
P0468NL
0.51
1.09
1.53
1.78
4.76
22.95
39.10
40.80
69.70
137
182
272
357
5.00
5.00
5.00
3.00
2.00
1.00
0.90
0.80
0.60
0.40
0.35
0.30
0.25
8.1
11.4
13.0
15.0
26.1
90.4
123.5
240.0
245.2
480.9
681.7
1030.4
1200.0
9.3
13.1
15
17.3
30
104
142
276
282
553
784
1185
1380
.65
1.5
2.3
2.3
6.3
34
57.2
62.5
100
180
254
422.5
500
3
.5
1.0
7.5
13
31
39
35
55
78
87
105
130
.508
.508
.508
.508
.508
.508
.508
.508
.508
.508
.508
.508
.508
8.87E-11
8.87E-11
8.87E-11
8.87E-11
8.87E-11
8.87E-11
8.87E-11
8.87E-11
8.87E-11
8.87E-11
8.87E-11
8.87E-11
8.87E-11
181.8
113.6
90.9
90.9
56.8
24.6
18.9
18.2
14.0
10.0
8.7
7.0
6.1
Inductance
@ Irated
(µH MIN)
0.51
0.85
2.72
8.84
10.79
25.50
88
127
DCR (mΩ)
Irated
(A)
2.00
1.50
1.00
0.50
0.45
0.29
0.16
0.14
TYP
14
18
40
140
155
280
1065
1600
MAX
16.1
20.7
46
161
178
322
1225
1840
Inductance
@ 0ADC
(µH +/- 15%)
.7
1.1
3.9
12.2
14.7
33.8
122
179
Reference
ET
(V*µsec)
.8
1.2
2.3
4.4
5.0
8.4
15
18
Trise
Factor
(Ko)
1.45
1.45
1.45
1.45
1.45
1.45
1.45
1.45
Coreloss
Factor
(K1)
1.27E-11
1.27E-11
1.27E-11
1.27E-11
1.27E-11
1.27E-11
1.27E-11
1.27E-11
ET
Factor
(K2)
476.2
370.4
196.1
111.1
101.0
66.7
35.1
29.0
USA 858 674 8100
1
Germany 49 7032 7806 0
Singapore 65 6287 8998
Shanghai 86 21 62787060
China 86 755 33966678
Taiwan 886 3 4356768
P617.B (02/15)
pulseelectronics.com
SMT Power Inductors
Shielded Toroid Series - Ros1/Ros2 Series
Notes:
1. Temperature rise is 55C in typical buck or boost circuits with the rated IDC current
and reference ET applied to the inductor.
2. Total loss in the inductor is 80 mW (ROS1) and 280 mW (ROS 2) for 55C temperature
rise above ambient.
3. To estimate temperature rise in a given application, you must determine the total
losses (copper losses + core losses) and apply the following formula:
Temp Rise (C) = (Total Losses (mW)
.833
* KO (from table)
4. To determine copper losses, calculate:
Copper Loss (mW) = I
DC2
x DCR
5. For core loss in mWatts, using frequency f (in Hz) and operating flux
density B (in Gauss), calculate:
Copper Loss (mW) = K2 * f
1.26
* B
2.11
6. For flux density (B), calculate ET (V-µsec) for the application, and multiply
by ET
10
factor from the table.
Mechanical
PXXXX
MAX
Schematic
G
F
A
MAX
B
E
F
Suggested Pad Layout
C
D
PKG
ROS 1
ROS 2
A
.335
8,51
.545
13,84
B
.225
5,72
.390
9,91
C
.125
3,18
.215
5,46
D
.250
6,35
.440
11,18
E
.100
2,54
.120
3,05
F
.050
1,27
.065
1,65
G
.250
6,35
.440
11,18
Dimensions:
ROS 2
ROS 1
Weight
.....................0.29 grams ................... 1.1 grams
Tape & Reel
................2000/reel ....................600/reel
Inches
mm
.010
0,25
Unless otherwise specified, all tolerances are
±
2
pulseelectronics.com
P617.B (02/15)
SMT Power Inductors
Shielded Toroid Series - Ros1/Ros2 Series
For More Information
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Pulse North China
Pulse South Asia
Pulse North Asia
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Room 2704/2705
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ogy Bldg.
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2067 Yan An Road
Singapore 368363
Taoyuan County 320
High-Tech Zone
West
Taiwan R. O. C.
Nanshan District
Shanghai 200336
Tel: 886 3 4356768
Shenzen, PR China
China
Tel: 65 6287 8998
Fax: 886 3 4356823 (Pulse)
Tel: 858 674 8100
Tel: 49 7032 78060
518057
Fax: 65 6287 8998
Fax: 886 3 4356820 (FRE)
Fax: 858 674 8262
Fax: 49 7032 7806 135
Tel: 86 755 33966678
Tel: 86 21 62787060
Fax: 86 755 33966700
Fax: 86 2162786973
Performance warranty of products offered on this data sheet is limited to the parameters specified. Data is subject to change without notice. Other brand and product names mentioned herein may be
trademarks or registered trademarks of their respective owners. © Copyright, 2015. Pulse Electronics, Inc. All rights reserved.
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