Product Overview
The SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. SNR4018 Series is an automatic assembly constructed, magnetic resin shielded SMD power inductor. Designed for high performance and reliability, these inductors significantly reduce buzz noise to ultra-low levels due to their magnetic-resin shielded construction. They offer large current handling capabilities with low DC resistance, a closed magnetic circuit design that minimizes leakage flux and EMI, and metallization on the ferrite core for excellent shock resistance and durability. Their compact size saves PCB space and reduces power consumption. These inductors are widely used in applications such as LED backlights, flat-screen TVs, notebooks, servers, graphics cards, automotive products, and DC-DC converters.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SNR4018
- Construction: Automatic assembly, Magnetic Resin Shielded SMD
- Certifications: RoHS, Halogen Free, REACH Compliance
- Core Material: Ferrite (implied by metallization on Ferrite Core)
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 LCR meter or equivalent | ||||||||
| 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%) - Other options: J:5%, K: 10%, L: 15%, P: 25%, N: 30% | ||||||||
| Packing: T (Tape & Reel) - Other option: B (Bulk Package) | ||||||||
| Land Pattern Dimensions (mm): | ||||||||
| ITEM | A | B | C | D | E | F (Typ) | G (Typ) | H (Typ) |
| SNR4018 | 4.00.3 | 4.00.3 | 1.8 Max | 2.10.2 | 3.30.2 | 1.1 | 1.9 | 3.7 |
| Current 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 influence of circuit design, component, PCB trace size and thickness, airflow, and other cooling provisions. | ||||||||
| Packaging Quantity: | ||||||||
| Part No. | Tape Dimension W (mm) | Tape Dimension P (mm) | Tape Dimension W1 (mm) | Reel Dimensions A (mm) | Reel Dimensions B (mm) | Reel Dimensions C (mm) | Reel Dimensions D (mm) | REEL (PCS) |
| SNR4018 | 12 | 8 | 5.5 | 12.4 | 100 | 13 | 330 | 3000 |
| Inside Box (PCS): 12,000 | ||||||||
| Outside Carton (PCS): 48,000 | ||||||||
Note: The provided text contains extensive details on reliability testing, reflow soldering curves, and usage reminders. These sections are highly technical and specific to manufacturing and application processes, and are not included in this summary table for brevity and focus on core product specifications.
2208161630_LanTu-Micro-SNR4018-220MT_C5127374.pdf
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