The NR4018 Series is a versatile, SMD Power Inductor from the magnetic-resin shielded line. It features a compact 4.2 mm × 4.2 mm footprint and a low 1.8mm profile (2.0mm max), making it a powerful and space-saving solution for a wide range of electronics.
This series is engineered to provide a high saturation current (Isat) up to 6.00A and a very wide inductance range, from 0.24µH up to 220µH. Its magnetic-resin shielded construction and closed magnetic circuit design ensure ultra-low acoustic noise and low EMI. The NR4018 is a reliable low profile inductor choice for notebooks, servers, TVs, and other high-performance devices. This model is one of the key inductor components for power filtering.
Key Features
Compact Footprint: 4.2 mm × 4.2 mm.
Low Profile: 1.8mm nominal height (2.0mm max).
High Saturation Current: Rated up to 6.00A.
Very Wide Inductance Range: 0.24µH to 220µH.
Ultra-Low Buzz Noise: Magnetic-resin shielded construction.
Low EMI: Closed magnetic circuit design reduces leakage flux.
RoHS Compliant.
Applications
The NR4018's versatile performance makes it an ideal SMD Power Inductor for:
Notebooks, desktop computers, servers, graphic cards
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Flat-screen TVs, blue-ray disc recorders, set-top boxes
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LED Lighting
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Automotive systems
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Telecom base stations
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Electrical Characteristics
|
Part No. |
Inductance (L) (µH) |
Test condition |
DCR (Ω) (±30%) |
S.R.F. (MHz) Min. |
Saturation Current (Isat) (A) |
Heating Rating Current (Idc) (A) |
|
NR4018-R24N |
0.24 ± 30% |
100 kHz, 1V |
0.014 |
320 |
6.00 |
4.30 |
|
NR4018-R47N |
0.47 ± 30% |
100 kHz, 1V |
0.014 |
140 |
4.30 |
4.00 |
|
NR4018-R68N |
0.68 ± 30% |
100 kHz, 1V |
0.020 |
110 |
4.90 |
3.30 |
|
NR4018-1R0N |
1.0 ± 30% |
100 kHz, 1V |
0.026 |
80 |
4.80 |
2.00 |
|
NR4018-1R5N |
1.5 ± 30% |
100 kHz, 1V |
0.032 |
65 |
3.35 |
1.80 |
|
NR4018-1R8N |
1.8 ± 30% |
100 kHz, 1V |
0.034 |
54 |
3.00 |
2.00 |
|
NR4018-2R2N |
2.2 ± 30% |
100 kHz, 1V |
0.047 |
52 |
2.70 |
1.65 |
|
NR4018-3R3N |
3.3 ± 30% |
100 kHz, 1V |
0.074 |
44 |
2.45 |
1.23 |
|
NR4018-4R7N |
4.7 ± 30% |
100 kHz, 1V |
0.095 |
34 |
1.70 |
1.20 |
|
NR4018-5R6N |
5.6 ± 30% |
100 kHz, 1V |
0.100 |
41 |
1.60 |
1.12 |
|
NR4018-6R8N |
6.8 ± 30% |
100 kHz, 1V |
0.116 |
29 |
1.45 |
1.06 |
|
NR4018-8R2N |
8.2 ± 30% |
100 kHz, 1V |
0.145 |
33 |
1.38 |
0.93 |
|
NR4018-100M |
10 ± 20% |
100 kHz, 1V |
0.189 |
24 |
1.30 |
0.84 |
|
NR4018-150M |
15 ± 20% |
100 kHz, 1V |
0.250 |
19 |
0.94 |
0.65 |
|
NR4018-220M |
22 ± 20% |
100 kHz, 1V |
0.378 |
16 |
0.80 |
0.59 |
|
NR4018-330M |
33 ± 20% |
100 kHz, 1V |
0.530 |
3 |
0.56 |
0.49 |
|
NR4018-470M |
47 ± 20% |
100 kHz, 1V |
0.683 |
10 |
0.57 |
0.40 |
|
NR4018-680M |
68 ± 20% |
100 kHz, 1V |
1.050 |
8.3 |
0.47 |
0.30 |
|
NR4018-101M |
100 ± 20% |
100 kHz, 1V |
1.838 |
6.5 |
0.40 |
0.24 |
|
NR4018-151M |
150 ± 20% |
100 kHz, 1V |
2.490 |
5.5 |
0.31 |
0.22 |
|
NR4018-221M |
220 ± 20% |
100 kHz, 1V |
3.960 |
4.0 |
0.27 |
0.17 |
Notes:
Test Conditions: All test data is referenced to 25°C ambient.
Operating Temperature Range: -40°C to +125°C (ambient plus self-temperature rise).
Isat (Saturation Current): DC current (A) that will cause L₀ to drop approximately 30%.
Idc (Heating Current): DC current (A) that will cause an approximate ΔT of 40°C.
Temperature Limit: The part temperature (ambient + temp rise) should not exceed 125°C under worst-case operating conditions.
Shape and Dimensions
Packaging
Packaging: Embossed Carrier Tape
Reel Diameter: 330 mm
Tape Width: 12 mm
Quantity/Reel: 3000 pcs
Solder Reflow Profile
Preheat condition: 150~200°C / 60~120 sec.
Allowed time above 217°C: 60~90 sec.
Max temp: 260°C
Max time at max temp: 10 sec.
Allowed Reflow time: 2x max
Solder paste: Sn/3.0Ag/0.5Cu
(Note: This profile is for qualification only. Actual profiles must be based on the customer's specific board design and process.)
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