Spec Sheet
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SMD Power Inductors (NR series)
NR4018T4R7M
Features
Item Summary
4.7uH±20%, 1.2A, 4.0x4.0x1.8mm
Lifecycle Stage
Mass Production
Standard packaging quantity (minimum)
Taping Embossed 3500pcs
Products characteristics table
Inductance
Case Size (mm)
Rated Current (max)
Saturation Current (max)
Temperature Rise Current (max)
DC Resistance (max)
DC Resistance (typ)
LQ Measuring Frequency
Self Resonant Frequency (min)
Operating Temp. Range
Temperature characteristic
(Inductance change)
RoHS2 Compliance (10 subst.)
REACH Compliance (168 subst.)
Soldering
Yes
Yes
Reflow
4.7 uH ± 20 %
4.0x4.0
1.2 A
1.7 A
1.2 A
108 mΩ
90 mΩ
100 kHz
34 MHz
-25 to +120 ℃
(Including-self-generated heat)
± 20 %
External Dimensions
Dimension L
Dimension W
Dimension H
Dimension e
Dimension f
4.0 ±0.2 mm
4.0 ±0.2 mm
Max 1.8 mm
1.1 ±0.2 mm
2.5 ±0.2 mm
Recommended Land Patterns
2017.01.02
The data is reference only. Electrical characteristics vary depending on environment or measurement condition.
TAIYO YUDEN reserves the right to make change to the Date at any time without notice.
Before making final selection, please check product specification.
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Halogen free / RoHS compliant
Wire Wound Inductor
-Electrical Characteristics Data-
2016/7/19
SMD Power Inductors (NR series)
Dimension
Length :
Width :
Height :
Inductance :
DC Resistance :
Saturation Current :
Temp. rise Current :
unit : mm
4.0 + / - 0.2
4.0 + / - 0.2
1.8
max.
unit : inch
( 0.157 + / - 0.008 )
( 0.157 + / - 0.008 )
( 0.071
max. )
NR4018T4R7M
4.7
uH
( test freq at 0.1MHz )
ohm ( typ / max )
0.09
/ 0.108
1,700 mA ( max )
1,200 mA ( max )
Saturation current typical : 30% reduction from initial L value.
Temp rise Current typical : Temperature will rise by 40 deg C
DC Bias vs Inductance
10
60
DC Bias vs Temperature
Self-temperature rise [deg]
0
600
1200
1800
2400
3000
8
50
40
30
20
10
0
0
400
800
1200
1600
2000
Inductance [uH]
6
4
2
0
DC Bias [mA]
DC Bias [mA]
Frequency vs Inductance
100
Inductance [uH]
10
1
0.1
0.1
1
10
100
Frequency [MHz]
The data is reference only. Electrical characteristics vary depending on environment or measurement condition.
TAIYO YUDEN reserves the right to make change to the data at any time without notice.
Before making final selection, please check product specification.
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