The NR8040 Series is a high-performance SMD Power Inductor in a larger 8.3 mm × 8.3 mm footprint with a 4.2mm profile. This series is engineered for high-current applications, offering an exceptional saturation current (Isat) up to 13.8A.
This NR8040 provides one of the widest inductance ranges in the NR family, from 0.82µH all the way to 2200µH (2.2mH). Its magnetic-resin shielded construction and closed magnetic circuit design ensure ultra-low acoustic noise, positioning it as an ideal low buzz noise inductor. The core material provides high permeability, and the design minimizes DCR for low ac resistance. The NR8040 is a robust, power-saving solution for demanding power supplies.
Key Features
High Saturation Current: Rated up to 13.8A.
Extremely Wide Inductance Range: 0.82µH to 2200µH.
8mm-Class Footprint: 8.3 mm × 8.3 mm.
4.2mm Profile: A robust profile for high-power handling.
Ultra-Low Buzz Noise: Magnetic-resin shielded construction.
Low EMI: Closed magnetic circuit design reduces leakage flux.
RoHS Compliant.
Applications
The NR8040's high current and extensive value range make it a powerful SMD Power Inductor choice for:
Servers, desktop computers, and graphic cards
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>>
Telecom base stations
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Automotive systems
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Flat-screen TVs and set-top boxes
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High-power LED Lighting
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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) |
|
NR8040-R82N |
0.82 ± 30% |
100 kHz, 1V |
0.008 |
94 |
13.8 |
6.30 |
|
NR8040-1R0N |
1.0 ± 30% |
100 kHz, 1V |
0.008 |
89 |
9.85 |
6.30 |
|
NR8040-1R5N |
1.5 ± 30% |
100 kHz, 1V |
0.010 |
67 |
8.15 |
5.65 |
|
NR8040-2R2N |
2.2 ± 30% |
100 kHz, 1V |
0.012 |
41 |
7.10 |
5.15 |
|
NR8040-2R6N |
2.6 ± 30% |
100 kHz, 1V |
0.012 |
38 |
7.10 |
5.10 |
|
NR8040-3R3N |
3.3 ± 30% |
100 kHz, 1V |
0.018 |
27 |
6.50 |
4.18 |
|
NR8040-3R6N |
3.6 ± 30% |
100 kHz, 1V |
0.018 |
26 |
7.52 |
4.35 |
|
NR8040-3R9N |
3.9 ± 30% |
100 kHz, 1V |
0.018 |
25 |
5.75 |
4.35 |
|
NR8040-4R7N |
4.7 ± 30% |
100 kHz, 1V |
0.020 |
24 |
5.90 |
3.90 |
|
NR8040-5R6N |
5.6 ± 30% |
100 kHz, 1V |
0.021 |
24 |
6.00 |
3.85 |
|
NR8040-6R8M |
6.8 ± 20% |
100 kHz, 1V |
0.025 |
20 |
4.55 |
3.42 |
|
NR8040-8R2M |
8.2 ± 20% |
100 kHz, 1V |
0.027 |
17 |
4.20 |
3.45 |
|
NR8040-100M |
10 ± 20% |
100 kHz, 1V |
0.030 |
15 |
3.60 |
3.14 |
|
NR8040-120M |
12 ± 20% |
100 kHz, 1V |
0.041 |
13 |
3.50 |
2.80 |
|
NR8040-150M |
15 ± 20% |
100 kHz, 1V |
0.049 |
12 |
2.95 |
2.47 |
|
NR8040-180M |
18 ± 20% |
100 kHz, 1V |
0.053 |
11 |
2.70 |
2.40 |
|
NR8040-220M |
22 ± 20% |
100 kHz, 1V |
0.072 |
9.5 |
2.40 |
2.00 |
|
NR8040-270M |
27 ± 20% |
100 kHz, 1V |
0.078 |
9.2 |
2.15 |
2.00 |
|
NR8040-330M |
33 ± 20% |
100 kHz, 1V |
0.102 |
7.8 |
2.05 |
1.71 |
|
NR8040-390M |
39 ± 20% |
100 kHz, 1V |
0.107 |
7.8 |
1.95 |
1.70 |
|
NR8040-470M |
47 ± 20% |
100 kHz, 1V |
0.143 |
6.4 |
1.75 |
1.47 |
|
NR8040-510M |
51 ± 20% |
100 kHz, 1V |
0.143 |
6.4 |
1.70 |
1.50 |
|
NR8040-680M |
68 ± 20% |
100 kHz, 1V |
0.206 |
4.9 |
1.45 |
1.19 |
|
NR8040-820M |
82 ± 20% |
100 kHz, 1V |
0.225 |
5.9 |
1.30 |
1.15 |
|
NR8040-101M |
100 ± 20% |
100 kHz, 1V |
0.305 |
4.2 |
1.15 |
0.95 |
|
NR8040-121M |
120 ± 20% |
100 kHz, 1V |
0.334 |
3.5 |
1.05 |
0.95 |
|
NR8040-151M |
150 ± 20% |
100 kHz, 1V |
0.431 |
3.5 |
1.10 |
0.81 |
|
NR8040-181M |
180 ± 20% |
100 kHz, 1V |
0.520 |
3.5 |
0.95 |
0.83 |
|
NR8040-221M |
220 ± 20% |
100 kHz, 1V |
0.600 |
3.5 |
0.85 |
0.80 |
|
NR8040-331M |
330 ± 20% |
100 kHz, 1V |
0.933 |
2.8 |
0.68 |
0.61 |
|
NR8040-471M |
470 ± 20% |
100 kHz, 1V |
1.250 |
2.0 |
0.60 |
0.50 |
|
NR8040-681M |
680 ± 20% |
100 kHz, 1V |
2.040 |
1.5 |
0.50 |
0.45 |
|
NR8040-102M |
1000 ± 20% |
100 kHz, 1V |
2.800 |
1.3 |
0.40 |
0.35 |
|
NR8040-152M |
1500 ± 20% |
100 kHz, 1V |
4.970 |
1.0 |
0.32 |
0.26 |
|
NR8040-222M |
2200 ± 20% |
100 kHz, 1V |
7.663 |
0.8 |
0.30 |
0.23 |
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: 16 mm
Quantity/Reel: 1000 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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