Compact Magnetic Resin Shielded SMD Power Inductors LanTu Micro SNR4018-100MT with Low DC Resistance
Product Overview
The LANTU SNR4018 Series is an automatic assembly compatible, magnetic resin shielded SMD power inductor designed for high-current applications with low DC resistance. Its closed magnetic circuit design minimizes leakage flux and electromagnetic interference (EMI), while the magnetic-resin shielded construction significantly reduces buzz noise to ultra-low levels. This series offers space and power savings, making it ideal for a wide range of electronic devices including LED backlights, flat-screen TVs, notebooks, servers, graphics cards, automotive products, and DC-DC converters. It is constructed with metallization on a ferrite core for excellent shock resistance and durability, and complies with RoHS, Halogen Free, and REACH standards.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SNR4018
- Type: Magnetic Resin Shielded SMD Power Inductors
- Construction: Automatic assembly, magnetic resin shielded
- Core Material: Ferrite Core
- Circuit Design: Closed magnetic circuit
- Certifications: RoHS, Halogen Free, REACH Compliance
Technical Specifications
| Part No. | Inductance (H) | Inductance Tolerance | Test Frequency | DCR () Typical | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max | Dimensions (LWH) (mm) |
|---|---|---|---|---|---|---|---|---|
| SNR4018-R24M | 0.24 | 20% | 100KHz, 1.0V | 0.014 | 0.018 | 4.30 | 4.00 | 4.04.01.8 |
| SNR4018-1R0M | 1.0 | 20% | 100KHz, 1.0V | 0.025 | 0.033 | 4.80 | 2.00 | 4.04.01.8 |
| SNR4018-1R5M | 1.5 | 20% | 100KHz, 1.0V | 0.030 | 0.039 | 3.35 | 1.80 | 4.04.01.8 |
| SNR4018-2R2M | 2.2 | 20% | 100KHz, 1.0V | 0.034 | 0.050 | 2.70 | 1.65 | 4.04.01.8 |
| SNR4018-3R3M | 3.3 | 20% | 100KHz, 1.0V | 0.070 | 0.091 | 2.45 | 1.23 | 4.04.01.8 |
| SNR4018-4R7M | 4.7 | 20% | 100KHz, 1.0V | 0.090 | 0.115 | 1.70 | 1.20 | 4.04.01.8 |
| SNR4018-6R8M | 6.8 | 20% | 100KHz, 1.0V | 0.110 | 0.140 | 1.45 | 1.06 | 4.04.01.8 |
| SNR4018-100M | 10 | 20% | 100KHz, 1.0V | 0.180 | 0.230 | 1.30 | 0.84 | 4.04.01.8 |
| SNR4018-150M | 15 | 20% | 100KHz, 1.0V | 0.250 | 0.320 | 0.94 | 0.65 | 4.04.01.8 |
| SNR4018-220M | 22 | 20% | 100KHz, 1.0V | 0.360 | 0.450 | 0.80 | 0.59 | 4.04.01.8 |
| SNR4018-330M | 33 | 20% | 100KHz, 1.0V | 0.530 | 0.689 | 0.56 | 0.49 | 4.04.01.8 |
| SNR4018-470M | 47 | 20% | 100KHz, 1.0V | 0.650 | 0.845 | 0.57 | 0.42 | 4.04.01.8 |
| SNR4018-560M | 56 | 20% | 100KHz, 1.0V | 0.760 | 0.988 | 0.50 | 0.40 | 4.04.01.8 |
| SNR4018-680M | 68 | 20% | 100KHz, 1.0V | 1.000 | 1.300 | 0.47 | 0.32 | 4.04.01.8 |
| SNR4018-101M | 100 | 20% | 100KHz, 1.0V | 1.750 | 2.200 | 0.40 | 0.25 | 4.04.01.8 |
| SNR4018-151M | 150 | 20% | 100KHz, 1.0V | 2.500 | 3.000 | 0.31 | 0.22 | 4.04.01.8 |
| Environmental Data: | ||||||||
| Operating Temperature: -40 to +125 (Including coils self-temperature rise) | ||||||||
| Test Equipment: | ||||||||
| Inductance (L): HP4284A, HP4285A or equivalent LCR meter | ||||||||
| Saturation Current (Isat) & Temperature Rise Current (Irms): HP4284+42841A or equivalent | ||||||||
| DC Resistance (DCR): Chroma 16502 or equivalent | ||||||||
| Product Identification: SNR 4018 470 M T | ||||||||
| Product Model Breakdown: | ||||||||
| Type: SNR (Shielded SMD Power Inductors) | Dimensions: 4018 (4.04.01.8 mm) | Inductance: e.g., 470 (47 H) | Tolerance: M (20%) | Packing: T (Tape & Reel) | ||||
| Inductance Tolerance Options: J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% | ||||||||
| Packing Options: B (Bulk Package), T (Tape & Reel) | ||||||||
| Land Pattern (mm): | ||||||||
| ITEM | A | B | C | D | E | F | G | H |
| SNR4018 | 4.00.3 | 4.00.3 | 1.8 Max | 2.10.2 | 3.30.2 | 1.1 Typ | 1.9 Typ | 3.7 Typ |
| Definitions: | ||||||||
| Saturation Current: DC current at which inductance drops 30% from its value without current. | ||||||||
| Temperature Rise Current: The actual value of DC current when the temperature rise is T 40 (Ta=25). | ||||||||
| Rated DC Current: The lesser value of Isat or Irms. | ||||||||
| Note: Part temperature should be verified in the end application due to factors like circuit design, component layout, PCB trace size and thickness, and airflow. | ||||||||
Note: The provided text includes detailed reliability testing, packaging specifications, and reflow soldering curves which are extensive and can be provided upon request for specific product pages.
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