Power Inductor
LPWI Series
LPWI Series
Description
Littelfuse offers compact and low profile dimensions, low losses and high
efficiency inductor for power supply circuits based thin film photolithography
technology.
The metal alloy composite thin film power inductor enables high durability,
reliability, quality, excellent temperature saturated characteristics, highly crafted
miniaturization, and low-height profiles.
Features
• Thin film photolithography
technology for compact and low
profile
• The metal alloy composite for high
reliability
• Large current type
• High Efficiency and Isat ratings:
ΔTemp. value up to 95%
• DC resistance as low as
17mOhm typ.
• Magnetically shielded
Applications
• DC-DC Converters and Power
modules in general use Electronic
equipment
• Mobile Phone and Tablet
• Portable/Wearable Devices
• Game console, POS, VR, Dongle,
and IoT module
• Consumer Products like PDP, LCD
TV, DVD Player, PC, Audio player,
DSC, Set top box, Laptop, SSD, IoT
module, and Home Automation
• Powerbanks and Printers
© 2017 Littelfuse
Revised: 06/27/17
Specifications are subject to change without notice.
littelfuse.com
Power Inductor
LPWI Series
Electrical Characteristics
Part Number
LPWI201608SR24T
LPWI201608SR47T
LPWI201608SR68T
LPWI201608S1R0T
LPWI201608S1R5T
LPWI201608S2R2T
LPWI201610SR24T
LPWI201610SR47T
LPWI201610SR68T
LPWI201610S1R0T
LPWI201610S1R5T
LPWI201610S2R2T
LPWI201610HR47T
LPWI201610HR68T
LPWI201610H1R0T
LPWI201610H1R5T
LPWI201610H2R2T
LPWI252010SR33T
LPWI252010SR47T
LPWI252010SR68T
LPWI252010S1R0T
LPWI252010S1R5T
LPWI252010S2R2T
LPWI252010HR33T
LPWI252010HR47T
LPWI252010HR68T
LPWI252010H1R0T
LPWI252010H2R2T
Size
(mm)
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2016
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
2520
Size
(Inch)
0806
0806
0806
0806
0806
0806
0806
0806
0806
0806
0806
0806
0806
0806
0806
0806
0806
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
1008
Thick-
ness
(mm)
0.8
0.8
0.8
0.8
0.8
0.8
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Inductance@
1MHz [uH]
0.24 ± 20%
0.47 ± 20%
0.68 ± 20%
1.00 ± 20%
1.50 ± 20%
2.20 ± 20%
0.24 ± 20%
0.47 ± 20%
0.68 ± 20%
1.00 ± 20%
1.50 ± 20%
2.20 ± 20%
0.47 ± 20%
0.68 ± 20%
1.00 ± 20%
1.50 ± 20%
2.20 ± 20%
0.33 ± 20%
0.47 ± 20%
0.68 ± 20%
1.00 ± 20%
1.50 ± 20%
2.20 ± 20%
0.33 ± 20%
0.47 ± 20%
0.68 ± 20%
1.00 ± 20%
2.20 ± 20%
DC Resistance
[mΩ]
Typ.
20
32
40
50
90
130
17
32
40
50
92
130
20
35
40
85
90
20
25
33
40
65
100
18
22
32
35
90
Max.
25
40
55
65
120
150
23
40
50
65
110
150
25
40
45
100
100
25
30
45
50
80
110
21
27
37
45
97
Rated DC current (A)
Isat, ΔL/L=30%
Typ.
5.0
3.7
3.6
3.3
2.9
2.0
6.0
4.5
4.1
3.5
2.8
1.8
5.3
4.8
3.9
3.2
2.7
6.8
6.0
4.8
4.2
3.5
3.0
7
.6
6.6
5.5
4.6
3.5
Max.
4.6
3.3
3.2
2.9
2.3
1.6
5.1
4.0
3.7
3.1
2.4
1.5
4.8
4.3
3.6
2.8
2.5
6.3
5.5
4.5
3.8
3.1
2.5
6.8
6.0
5.0
4.1
3.1
Itemp, ΔT=40°C
Typ.
4.2
3.4
3.1
3.0
2.1
1.9
4.7
3.8
3.5
3.1
2.2
1.7
4.2
3.7
3.1
2.5
2.4
5.8
4.1
3.8
3.5
2.8
2.5
5.6
5.2
4.1
4.3
2.5
Max.
3.8
3
2.7
2.6
1.9
1.5
4.2
3.5
3.1
2.8
2.0
1.6
3.6
3.1
2.7
2.3
2.2
5.3
3.7
3.4
3.1
2.5
2.3
4.8
4.4
3.5
4.1
2.3
Test Conditions
• Inductance measuring equipment: 4287A RF LCR meter (Agilent), at 1MHz, 0.5V
• DC Resistance measuring equipment: 4338B Milliohm meter (Agilent)
• Rated Current “∆T = 40ºC”: Self-temperature rise to 40ºC due to self-heating (at room-temperature)
© 2017 Littelfuse
Revised: 06/27/17
Specifications are subject to change without notice.
littelfuse.com
Power Inductor
LPWI Series
2.0 x 1.6 x 0.8 mm Size
Inductance vs. Frequency Characteristics
4.0
3.5
3.0
Inductance vs. DC Current Characteristics
2.2
2.0
1.8
1.6
LPWI201608SR24T
LPWI201608SR47T
LPWI201608SR68T
LPWI201608S1R0T
LPWI201608S1R5T
LPWI201608S2R2T
Inductance(uH)
Inductance(uH)
100
2.5
2.0
1.5
1.0
0.5
0.0
1
LPWI201608SR24T
LPWI201608SR47T
LPWI201608SR68T
LPWI201608S1R0T
LPWI201608S1R5T
LPWI201608S2R2T
1.4
1.2
1.0
0.8
0.6
0.4
0.2
10
0.0
Frequency(MHz)
0
1
2
3
Current(A)
4
5
6
7
2.0 x 1.6 x 1.0 mm Size
Inductance vs. Frequency Characteristics
4.5
4.0
3.5
Inductance vs. DC Current Characteristics
2.2
2.0
1.8
1.6
LPWI201610SR24T
LPWI201610SR47T
LPWI201610SR68T
LPWI201610S1R0T
LPWI201610S1R5T
LPWI201610S2R2T
Inductance(uH)
Inductance(uH)
10
100
3.0
2.5
2.0
1.5
1.0
0.5
0.0
1
LPWI201610SR24T
LPWI201610SR47T
LPWI201610SR68T
LPWI201610S1R0T
LPWI201610S1R5T
LPWI201610S2R2T
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
1
2
3
4
Frequency(MHz)
Current(A)
5
6
Test Conditions
• Test Equipment: 4991A RF Impedance Analyzer (Agilent)
• Test Frequency: 1MHz ~ 200MHz
© 2017 Littelfuse
Revised: 06/27/17
Specifications are subject to change without notice.
littelfuse.com
Power Inductor
LPWI Series
2.0 x 1.6 x 1.0 mm Size (High Current)
Inductance vs. Frequency Characteristics
4.5
4.0
3.5
Inductance vs. DC Current Characteristics
2.2
2.0
1.8
1.6
LPWI201610HR47T
LPWI201610HR68T
LPWI201610H1R0T
LPWI201610H1R5T
LPWI201610H2R2T
Inductance(uH)
Inductance(uH)
1
10
100
3.0
2.5
2.0
1.5
1.0
0.5
0.0
LPWI201610HR47T
LPWI201610HR68T
LPWI201610H1R0T
LPWI201610H1R5T
LPWI201610H2R2T
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0
1
2
3
4
5
6
Frequency(MHz)
Current(A)
2.5 x 2.0 x 1.0 mm Size
Inductance vs. Frequency Characteristics
4.0
3.5
3.0
Inductance vs. DC Current Characteristics
2.2
2.0
1.8
1.6
Inductance(uH)
Inductance(uH)
2.5
2.0
1.5
1.0
0.5
0.0
1
LPWI252010SR33T
LPWI252010SR47T
LPWI252010SR68T
LPWI252010S1R0T
LPWI252010S1R5T
LPWI252010S2R2T
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
LPWI252010SR33T
LPWI252010SR47T
LPWI252010SR68T
LPWI252010S1R0T
LPWI252010S1R5T
LPWI252010S2R2T
Frequency(MHz)
10
100
0
1
2
3
Current(A)
4
5
6
7
Test Conditions
• Test Equipment: 4991A RF Impedance Analyzer (Agilent)
• Test Frequency: 1MHz ~ 200MHz
© 2017 Littelfuse
Revised: 06/27/17
Specifications are subject to change without notice.
littelfuse.com
Power Inductor
LPWI Series
2.5 x 2.0 x 1.0 mm Size (High Current)
Inductance vs. Frequency Characteristics
4.0
3.5
3.0
Inductance vs. DC Current Characteristics
2.2
2.0
1.8
1.6
Inductance(uH)
LPWI252010HR33T
LPWI252010HR47T
LPWI252010HR68T
LPWI252010H1R0T
LPWI252010H2R2T
Inductance(uH)
2.5
2.0
1.5
1.0
0.5
0.0
1
10
100
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
LPWI252010HR33T
LPWI252010HR47T
LPWI252010HR68T
LPWI252010H1R0T
LPWI252010H2R2T
Frequency(MHz)
0
1
2
3
Current(A)
4
5
6
7
Test Conditions
• Test Equipment: 4991A RF Impedance Analyzer (Agilent)
• Test Frequency: 1MHz ~ 200MHz
Soldering Parameters
Reflow Condition
- Temperature Min (T
s(min)
)
Pre Heat
- Temperature Max (T
s(max)
)
- Time (Min to Max) (t
s
)
Pb-free assembly
160°C
185°C
1°C/second max
1°C/second max
220°C
30 − 50 seconds
260°C
5~10 seconds
2°C/second max
4 minutes max
260°C
260°C, 10 sec. max
T
P
T
L
Temperature
t
P
Ramp-up
Critical Zone
T
L
to T
P
100 − 120 seconds
Average Ramp-up Rate
(Liquidus Temp (T
L
) to peak)
T
S(max)
to TL - Ramp-up Rate
Reflow
- Temperature (T
L
) (Liquidus)
- Temperature (t
L
)
T
S(max)
T
S(min)
Preheat
t
L
Ramp-down
t
S
time to peak temperature
(t 25ºC to peak)
Peak Temperature (T
P
)
Time within 5°C of
actual peak Temperature (t
p
)
Ramp-down Rate
Time 25°C to Peak Temperature (T
P
)
Do not exceed
Wave Soldering
25
Time
Recommended Soldering Profile ( Lead free condition)
Product Characteristics
Lead Pull Strength
Solderability
Soldering Heat
Resistance
Operating
Temperature
Climatic Category
Stock Conditions
Vibration
Resistance
5N
260ºC, ≤10s (Reflow),
Max 380ºC,≤5s (Soldering iron)
Max 260ºC 10sec (Wave),
Max Temperature: Max 380ºC (Max 5sec)
-40ºC ~ + 125ºC
-40ºC ~ + 85ºC/8 days
-10ºC ~ + 40ºC RH, ≤ 70%
5 g’s for 20 minutes, 12 cycles each of 3
orientations
© 2017 Littelfuse
Revised: 06/27/17
Specifications are subject to change without notice.
littelfuse.com
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