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NPI Power Inductors NPI__C Series
Series A B C G (Ref) H (Ref) I (Ref)
NPI32C 3.50 ± 0.3 3.00 ± 0.3 2.10 ± 0.3 1.1 3.3 1.30
NPI43C 4.50 ± 0.3 4.00 ± 0.3 3.20 ± 0.3 1.5 4.5 1.75
NPI52C 5.80 ± 0.3 5.20 ± 0.3 2.00 ± 0.3 1.7 5.5 2.15
NPI54C 5.80 ± 0.3 5.20 ± 0.3 4.50 ± 0.3 1.7 5.5 2.15
NPI73C 7.80 ± 0.3 7.00 ± 0.3 3.50 ± 0.5 2.0 7.5 3.0
NPI75C 7.80 ± 0.3 7.00 ± 0.3 5.00 ± 0.5 2.0 7.5 3.0
NPI104C 10.0 ± 0.3 9.00 ± 0.3 4.00 ± 0.5 2.5 9.5 3.75
NPI105C 10.0 ± 0.4 9.00 ± 0.4 5.40 ± 0.4 2.5 9.5 3.75
A
B
150
G
I
H
I
REFLOW SOLDERING
LAND PATTERN
DIMENSIONS (mm)
FEATURES
• HIGH CURRENT, SMALL SIZE (UP TO 4 AMPS)
• SURFACE MOUNTABLE CONSTRUCTION
• HIGH INDUCTANCE (UP TO 820µH)
• TAPED AND REELED FOR AUTOMATIC INSERTION
• FOR USE IN DC/DC CONVERTERS, DC/AC INVERTERS
• Pb-FREE COMPATIBLE
CHARACTERISTICS
Case Size NPI32C NPI43C NPI52C NPI54C NPI73C NPI75C NPI104C NPI105C
Inductance Range 1 ~ 100µH 1 ~ 220µH 1 ~ 560µH 1 ~ 680µH 10 ~ 330µH 10 ~ 470µH 10 ~ 560µH 10 ~ 820µH
Inductance Tolerance 10% (K), 20% (M)
Ambient Operating
Temperature Range -40°C ~ +85°C*
Maximum Component
Temperature
(Ambient + Self-Heating)
+125°C*
Inductance Change at Isat -30% max.
Temperature Raise at Irms +40°C max.
Resistance to Solder Heat 260°C for 10 seconds
C
REFLOW SOLDERING PROFILE
Soldering 260°C max.
5 seconds max.
Cool Down
60 ~ 120 sec.
25
50
100
150
200
250
300
Pre-Heat
150°C ~ 180°C
Time above 230°C
30 seconds max.
30 60 90 120 150 180 210 240 270 300
Time - Seconds
Temperature °C
NPI 43 C 4R7 MTR F
RoHS Compliant
Packaging: TR = Tape & Reel
Inductance Tolerance Code: M=±20%
Inductance Code (µH): 1st two digits are signicant,
3rd digit is multiplier for values from 10µH and up.
Construction Code (see drawing for details)
Size Code (see table for details)
Series
PART NUMBER SYSTEM
*See Part Number System for Details
RoHS
Compliant
includes all homogeneous materials
Termination Plating
Sn 96.5% - Ag 3.0% - Cu 0.5%
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NPI__C Series
NPI Power Inductors
Part Number
STANDARD VALUES - CASE SIZE 32 (3.5 x 3.0 x 2.1mm)
Inductance Value
(µH)
DC Resistance
()
DC Current
Isat/Irms (Amps) Test Frequency
NPI32C1R0MTRF 1.0±20% 0.04 1.5
100KHz
NPI32C1R4MTRF 1.4±20% 0.05 1.5
NPI32C1R8MTRF 1.8±20% 0.06 0.80
NPI32C2R2MTRF 2.2±20% 0.08 0.75
NPI32C2R7MTRF 2.7±20% 0.10 0.75
NPI32C3R3MTRF 3.3±20% 0.15 0.60
NPI32C3R9MTRF 3.9±20% 0.20 0.50
NPI32C4R7MTRF 4.7±20% 0.20 0.50
NPI32C5R6MTRF 5.6±20% 0.23 0.45
NPI32C6R8MTRF 6.8±20% 0.25 0.40
NPI32C8R2MTRF 8.2±20% 0.30 0.40
NPI32C100MTRF 10±20% 0.35 0.35
1KHz
NPI32C120MTRF 12±20% 0.40 0.35
NPI32C150MTRF 15±20% 0.50 0.30
NPI32C180MTRF 18±20% 0.55 0.30
NPI32C220MTRF 22±20% 0.60 0.30
NPI32C270MTRF 27±20% 0.70 0.30
NPI32C330MTRF 33±20% 1.0 0.25
NPI32C390MTRF 39±20% 1.2 0.25
NPI32C470MTRF 47±20% 1.5 0.20
NPI32C560MTRF 56±20% 1.8 0.20
NPI32C680MTRF 68±20% 2.0 0.18
NPI32C820MTRF 82±20% 2.5 0.16
NPI32C101MTRF 100±20% 3.0 0.15 1KHz
Maximum +40°C temperature rise at Irms. Maximum -30% inductance change at Isat.
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NPI Power Inductors NPI__C Series
Part Number
STANDARD VALUES - CASE SIZE 43 (4.5 x 4.0 x 3.2mm)
Inductance Value
(µH)
DC Resistance
()
DC Current
Isat/Irms (Amps) Test Frequency
NPI43C1R0MTRF 1.0 ± 20% 0.03 4.0
100KHz
NPI43C1R4MTRF 1.4 ± 20% 0.04 3.5
NPI43C1R8MTRF 1.8 ± 20% 0.05 3.0
NPI43C2R2MTRF 2.2 ± 20% 0.06 2.6
NPI43C2R7MTRF 2.7 ± 20% 0.06 2.2
NPI43C3R3MTRF 3.3 ± 20% 0.07 2.0
NPI43C3R9MTRF 3.9 ± 20% 0.07 2.0
NPI43C4R7MTRF 4.7 ± 20% 0.08 1.9
NPI43C5R6MTRF 5.6 ± 20% 0.12 1.8
NPI43C6R8MTRF 6.8 ± 20% 0.14 1.6
NPI43C8R2MTRF 8.2 ± 20% 0.15 1.4
NPI43C100MTRF 10 ± 20% 0.19 1.1
1KHz
NPI43C120MTRF 12 ± 20% 0.21 1.1
NPI43C150MTRF 15 ± 20% 0.25 1.0
NPI43C180MTRF 18 ± 20% 0.3 1.0
NPI43C220MTRF 22 ± 20% 0.35 0.80
NPI43C270MTRF 27 ± 20% 0.45 0.75
NPI43C330MTRF 33 ± 20% 0.6 0.70
NPI43C390MTRF 39 ± 20% 0.7 0.65
NPI43C470MTRF 47 ± 20% 0.8 0.60
NPI43C560MTRF 56 ± 20% 0.85 0.55
NPI43C680MTRF 68 ± 20% 1.0 0.50
NPI43C820MTRF 82 ± 20% 1.1 0.46
NPI43C101MTRF 100 ± 20% 1.2 0.22
1KHz
NPI43C121MTRF 120 ± 20% 1.6 0.20
NPI43C151MTRF 150 ± 20% 2.0 0.20
NPI43C181MTRF 180 ± 20% 3.0 0.20
NPI43C221MTRF 220 ± 20% 3.0 0.20
Maximum +40°C temperature rise at Irms. Maximum -30% inductance change at Isat.
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NPI Power Inductors NPI__C Series
Part Number
STANDARD VALUES - CASE SIZE 52 (5.8 x 5.2 x 2.0mm)
Inductance Value
(µH)
DC Resistance
()
DC Current
Isat/Irms (Amps) Test Frequency
NPI52C1R0MTRF 1.0±20% 0.03 1.5
100KHz
NPI52C1R4MTRF 1.4±20% 0.04 1.5
NPI52C1R8MTRF 1.8±20% 0.05 1.5
NPI52C2R2MTRF 2.2±20% 0.06 1.5
NPI52C2R7MTRF 2.7±20% 0.07 1.5
NPI52C3R3MTRF 3.3±20% 0.08 1.5
NPI52C3R9MTRF 3.9±20% 0.09 1.0
NPI52C4R7MTRF 4.7±20% 0.10 1.0
NPI52C5R6MTRF 5.6±20% 0.11 1.0
NPI52C6R8MTRF 6.8±20% 0.14 0.70
NPI52C8R2MTRF 8.2±20% 0.15 0.65
NPI52C100MTRF 10±20% 0.30 0.60
1KHz
NPI52C120MTRF 12±20% 0.35 0.60
NPI52C150MTRF 15±20% 0.40 0.55
NPI52C180MTRF 18±20% 0.45 0.50
NPI52C220MTRF 22±20% 0.50 0.50
NPI52C270MTRF 27±20% 0.55 0.45
NPI52C330MTRF 33±20% 0.60 0.40
NPI52C390MTRF 39±20% 0.70 0.35
NPI52C470MTRF 47±20% 0.80 0.30
NPI52C560MTRF 56±20% 0.90 0.25
NPI52C680MTRF 68±20% 1.2 0.25
NPI52C820MTRF 82±20% 1.5 0.22
1KHz
NPI52C101MTRF 100±20% 2.0 0.21
NPI52C121MTRF 120±20% 3.0 0.20
NPI52C151MTRF 150±20% 4.0 0.18
NPI52C181MTRF 180±20% 4.0 0.15
NPI52C221MTRF 220±20% 4.5 0.15
NPI52C271MTRF 270±20% 5.0 0.15
NPI52C331MTRF 330±20% 6.0 0.14
NPI52C391MTRF 390±20% 6.5 0.14
NPI52C471MTRF 470±20% 7.0 0.12
NPI52C561MTRF 560±20% 8.0 0.12
Maximum +40°C temperature rise at Irms. Maximum -30% inductance change at Isat.
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NPI Power Inductors NPI__C Series
Part Number
STANDARD VALUES - CASE SIZE 54 (5.8 x 5.2 x 4.5mm)
Inductance Value
(µH)
DC Resistance
()
DC Current
Isat/Irms (Amps) Test Frequency
NPI54C1R0MTRF 1.0 ± 20% 0.018 3.5
100KHz
NPI54C1R4MTRF 1.4 ± 20% 0.02 3.5
NPI54C1R8MTRF 1.8 ± 20% 0.025 3.0
NPI54C2R2MTRF 2.2 ± 20% 0.03 2.8
NPI54C2R7MTRF 2.7 ± 20% 0.035 2.6
NPI54C3R3MTRF 3.3 ± 20% 0.04 2.5
NPI54C3R9MTRF 3.9 ± 20% 0.05 2.3
NPI54C4R7MTRF 4.7 ± 20% 0.06 2.6
NPI54C5R6MTRF 5.6 ± 20% 0.07 2.4
NPI54C6R8MTRF 6.8 ± 20% 0.08 2.2
NPI54C8R2MTRF 8.2 ± 20% 0.08 2.0
NPI54C100MTRF 10 ± 20% 0.09 1.8
1KHz
NPI54C120MTRF 12 ± 20% 0.10 1.6
NPI54C150MTRF 15 ± 20% 0.12 1.5
NPI54C180MTRF 18 ± 20% 0.15 1.4
NPI54C220MTRF 22 ± 20% 0.18 1.3
NPI54C270MTRF 27 ± 20% 0.22 1.2
NPI54C330KTRF 33 ± 10% 0.26 1.0
NPI54C390KTRF 39 ± 10% 0.30 0.90
NPI54C470KTRF 47 ± 10% 0.35 0.85
NPI54C560KTRF 56 ± 10% 0.40 0.80
NPI54C680KTRF 68 ± 10% 0.45 0.70
NPI54C820KTRF 82 ± 10% 0.50 0.70
NPI54C101KTRF 100 ± 10% 0.70 0.60
1KHz
NPI54C121KTRF 120 ± 10% 0.75 0.60
NPI54C151KTRF 150 ± 10% 0.90 0.55
NPI54C181KTRF 180 ± 10% 1.1 0.50
NPI54C221KTRF 220 ± 10% 1.2 0.40
NPI54C271KTRF 270 ± 10% 1.5 0.25
NPI54C331KTRF 330 ± 10% 3.0 0.22
NPI54C391KTRF 390 ± 10% 3.5 0.20
NPI54C471KTRF 470 ± 10% 4.0 0.19
NPI54C561KTRF 560 ± 10% 4.0 0.18
NPI54C681KTRF 680 ± 10% 4.5 0.15
Maximum +40°C temperature rise at Irms. Maximum -30% inductance change at Isat.
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Part Number
STANDARD VALUES - CASE SIZE 75 (7.8 x 7.0 x 5.0mm)
Inductance Value
(µH)
DC Resistance
()
DC Current
Isat/Irms (Amps) Test Frequency
NPI75C100MTRF 10 ± 20% 0.07 2.3
1KHz
NPI75C120MTRF 12 ± 20% 0.08 2.0
NPI75C150MTRF 15 ± 20% 0.09 1.8
NPI75C180MTRF 18 ± 20% 0.10 1.6
NPI75C220MTRF 22 ± 20% 0.11 1.5
NPI75C270MTRF 27 ± 20% 0.12 1.3
NPI75C330MTRF 33 ± 20% 0.13 1.2
NPI75C390MTRF 39 ± 20% 0.16 1.1
NPI75C470KTRF 47 ± 10% 0.18 1.1
NPI75C560KTRF 56 ± 10% 0.24 0.94
NPI75C680KTRF 68 ± 10% 0.28 0.85
NPI75C820KTRF 82 ± 10% 0.37 0.78
NPI75C101KTRF 100 ± 10% 0.43 0.72
1KHz
NPI75C121KTRF 120 ± 10% 0.47 0.66
NPI75C151KTRF 150 ± 10% 0.64 0.58
NPI75C181KTRF 180 ± 10% 0.71 0.51
NPI75C221KTRF 220 ± 10% 0.96 0.49
NPI75C271KTRF 270 ± 10% 1.11 0.42
NPI75C331KTRF 330 ± 10% 1.26 0.40
NPI75C391KTRF 390 ± 10% 1.77 0.36
NPI75C471KTRF 470 ± 10% 1.96 0.34
NPI Power Inductors NPI__C Series
Part Number
STANDARD VALUES - CASE SIZE 73 (7.8 x 7.0 x 3.5mm)
Inductance Value
(µH)
DC Resistance
()
DC Current
Isat/Irms (Amps) Test Frequency
NPI73C100MTRF 10 ± 20% 0.0803 1.44
1KHz
NPI73C120MTRF 12 ± 20% 0.0897 1.39
NPI73C150MTRF 15 ± 20% 0.104 1.24
NPI73C180MTRF 18 ± 20% 0.111 1.12
NPI73C220MTRF 22 ± 20% 0.129 1.07
NPI73C270MTRF 27 ± 20% 0.153 0.97
NPI73C330MTRF 33 ± 20% 0.170 0.85
NPI73C390MTRF 39 ± 20% 0.217 0.74
NPI73C470MTRF 47 ± 20% 0.252 0.68
NPI73C560KTRF 56 ± 10% 0.282 0.64
NPI73C680KTRF 68 ± 10% 0.332 0.59
NPI73C820KTRF 82 ± 10% 0.406 0.54
NPI73C101KTRF 100 ± 10% 0.481 0.51
1KHz
NPI73C121KTRF 120 ± 10% 0.536 0.49
NPI73C151KTRF 150 ± 10% 0.755 0.40
NPI73C181KTRF 180 ± 10% 1.022 0.36
NPI73C221KTRF 220 ± 10% 1.200 0.31
NPI73C271KTRF 270 ± 10% 1.306 0.29
NPI73C331KTRF 330 ± 10% 1.495 0.28
Maximum +40°C temperature rise at Irms. Maximum -30% inductance change at Isat.
Maximum +40°C temperature rise at Irms. Maximum -30% inductance change at Isat.
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NPI Power Inductors NPI__C Series
Part Number
STANDARD VALUES - CASE SIZE 104 (10.0 x 9.0 x 4.0mm)
Inductance Value
(µH)
DC Resistance
()
DC Current
Isat/Irms (Amps) Test Frequency
NPI104C100MTRF 10 ± 20% 0.053 2.38
1KHz*
NPI104C120MTRF 12 ± 20% 0.061 2.13
NPI104C150MTRF 15 ± 20% 0.070 1.87
NPI104C180MTRF 18 ± 20% 0.081 1.73
NPI104C220MTRF 22 ± 20% 0.088 1.60
NPI104C270MTRF 27 ± 20% 0.100 1.44
NPI104C330MTRF 33 ± 20% 0.120 1.26
NPI104C390MTRF 39 ± 20% 0.151 1.20
NPI104C470MTRF 47 ± 20% 0.170 1.10
NPI104C560KTRF 56 ± 10% 0.199 1.01
NPI104C680KTRF 68 ± 10% 0.223 0.91
NPI104C820KTRF 82 ± 10% 0.252 0.85
NPI104C101KTRF 100 ± 10% 0.344 0.74
1KHz
NPI104C121KTRF 120 ± 10% 0.396 0.69
NPI104C151KTRF 150 ± 10% 0.544 0.61
NPI104C181KTRF 180 ± 10% 0.621 0.56
NPI104C221KTRF 220 ± 10% 0.721 0.53
NPI104C271KTRF 270 ± 10% 0.949 0.45
NPI104C331KTRF 330 ± 10% 1.100 0.42
NPI104C391KTRF 390 ± 10% 1.245 0.38
NPI104C471KTRF 470 ± 10% 1.526 0.35
NPI104C561KTRF 560 ± 10% 1.904 0.32
Maximum +40°C temperature rise at Irms. Maximum -30% inductance change at Isat.
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Part Number
STANDARD VALUES - CASE SIZE 105 (10.0 x 9.0 x 5.4mm)
Inductance Value
(µH)
DC Resistance
()
DC Current
Isat/Irms (Amps) Test Frequency
NPI105C100MTRF 10 ± 20% 0.06 2.60
1KHz*
NPI105C120MTRF 12 ± 20% 0.07 2.45
NPI105C150MTRF 15 ± 20% 0.08 2.27
NPI105C180MTRF 18 ± 20% 0.09 2.15
NPI105C220MTRF 22 ± 20% 0.10 1.95
NPI105C270MTRF 27 ± 20% 0.11 1.76
NPI105C330MTRF 33 ± 20% 0.12 1.50
NPI105C390MTRF 39 ± 20% 0.14 1.37
NPI105C470MTRF 47 ± 20% 0.17 1.28
NPI105C560MTRF 56 ± 20% 0.19 1.17
NPI105C680MTRF 68 ± 20% 0.22 1.11
NPI105C820MTRF 82 ± 20% 0.25 1.00
NPI105C101MTRF 100 ± 20% 0.35 0.97
1KHz
NPI105C121MTRF 120 ± 20% 0.40 0.89
NPI105C151MTRF 150 ± 20% 0.47 0.78
NPI105C181MTRF 180 ± 20% 0.63 0.72
NPI105C221MTRF 220 ± 20% 0.73 0.66
NPI105C271MTRF 270 ± 20% 0.97 0.57
NPI105C331MTRF 330 ± 20% 1.15 0.52
NPI105C391MTRF 390 ± 20% 1.30 0.48
NPI105C471MTRF 470 ± 20% 1.48 0.42
NPI105C561MTRF 560 ± 20% 1.90 0.33
NPI105C681MTRF 680 ± 20% 2.25 0.28
NPI105C821MTRF 820 ± 20% 2.55 0.24
NPI Power Inductors NPI__C Series
Maximum +40°C temperature rise at Irms. Maximum -30% inductance change at Isat.
*Specications reect recent product changes. For more information refer to PCN announcement [Link]
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Chip size CARRIER TAPE DIMENSIONS (mm)
Bo Ao Ko P W E F Po t
NPI32C 3.7±0.1 3.2±0.1 2.3±0.1 8.0±0.1 12.0±0.1
1.75±0.1
5.5±0.1
4.0±0.1
0.35±0.05
NPI43C 4.6±0.1 4.1±0.1 3.6±0.1 8.0±0.1 12.0±0.1 0.40±0.05
NPI52C 6.0±0.1 5.4±0.1 2.3±0.1 8.0±0.1 12.0±0.1 0.35±0.05
NPI54C 6.1±0.1 5.6±0.1 4.8±0.1 8.0±0.1 12.0±0.1 0.40±0.05
NPI73C 8.1±0.1 7.3±0.1 4.0±0.1 12.0±0.1 16.0±0.1 7.5±0.1 0.40±0.05
NPI75C 8.1±0.1 7.3±0.1 5.3±0.1 12.0±0.1 16.0±0.1 0.40±0.05
NPI104C 10.3±0.1 9.3±0.1 4.5±0.1 16.0±0.1 24.0±0.1 11.5±0.1 0.40±0.05
NPI105C 10.3±0.1 9.3±0.1 6.1±0.1 16.0±0.1 24.0±0.1 0.40±0.05
Po
P
E
W
F
K0
B0
A0
t
NPI Power Inductors NPI__C Series
Tape Width REEL DIMENSIONS (mm)
A(mm) B(mm) C(mm) D(mm)
12mm 13.5 ± 0.5
100±1 13±0.5 33016mm 16.5 ±0.5
24mm 24.5 ±0.5
Size REEL QUANTITY PER CASE SIZE
NPI32C NPI43C NPI52C NPI54C NPI73C NPI75C NPI104C NPI105C
Quantity per reel 3,000 2000 3,000 1,500 1,000 1,000 800 500
Tape Width 12mm 12mm 12mm 12mm 16mm 16mm 24mm 24mm
B
C
D
A