Product Overview
The SNR4018 Series is an automatic assembly compatible, magnetic resin shielded SMD power inductor designed to minimize buzz noise to ultra-low levels. It features a closed magnetic circuit design for reduced leakage flux and strong EMI resistance, along with metallization on the ferrite core for excellent shock resistance and durability. This series offers high current capability and low DC resistance, making it space-saving and power-efficient. It is widely used in applications such as LED backlights, flat-screen TVs, notebooks, servers, graphic cards, automotive products, and DC-DC converters. The inductors comply with RoHS, Halogen Free, and REACH standards.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SNR4018
- Construction: Magnetic Resin Shielded SMD Power Inductor
- Certifications: RoHS, Halogen Free, REACH Compliance
- Core Material: Ferrite Core
- Shielding: Magnetic Resin
Technical Specifications
| Part No. | Inductance (H) | Tolerance | Test Frequency (kHz) | Test Voltage (V) | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max | Dimensions (LWH mm) | Packing |
|---|---|---|---|---|---|---|---|---|---|
| SNR4018-R24M | 0.24 | 20% | 100 | 1.0 | 0.018 | 4.30 | 4.00 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-1R0M | 1.0 | 20% | 100 | 1.0 | 0.033 | 4.80 | 2.00 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-1R5M | 1.5 | 20% | 100 | 1.0 | 0.039 | 3.35 | 1.80 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-2R2M | 2.2 | 20% | 100 | 1.0 | 0.550 | 2.70 | 1.65 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-3R3M | 3.3 | 20% | 100 | 1.0 | 0.091 | 2.45 | 1.23 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-4R7M | 4.7 | 20% | 100 | 1.0 | 0.115 | 1.70 | 1.20 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-6R8M | 6.8 | 20% | 100 | 1.0 | 0.140 | 1.45 | 1.06 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-100M | 10 | 20% | 100 | 1.0 | 0.230 | 1.30 | 0.84 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-150M | 15 | 20% | 100 | 1.0 | 0.320 | 0.94 | 0.65 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-220M | 22 | 20% | 100 | 1.0 | 0.450 | 0.80 | 0.59 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-330M | 33 | 20% | 100 | 1.0 | 0.689 | 0.56 | 0.49 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-470M | 47 | 20% | 100 | 1.0 | 0.845 | 0.57 | 0.42 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-560M | 56 | 20% | 100 | 1.0 | 0.988 | 0.50 | 0.40 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-680M | 68 | 20% | 100 | 1.0 | 1.300 | 0.47 | 0.32 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-101M | 100 | 20% | 100 | 1.0 | 2.200 | 0.40 | 0.25 | 4.04.01.8 | Tape & Reel (T) |
| SNR4018-151M | 150 | 20% | 100 | 1.0 | 3.000 | 0.31 | 0.22 | 4.04.01.8 | Tape & Reel (T) |
| 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: | |||||||||
| Series | SNR (Shielded SMD Power Inductors) | ||||||||
| Dimensions | 4018 (4.04.01.8 mm) | ||||||||
| Inductance | Example: 470 (47 H) | ||||||||
| Tolerance | M (20%) | ||||||||
| Packing | T (Tape & Reel) | ||||||||
| 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 of Isat or Irms. | ||||||||
| Note: Circuit design, component, PCB trace size and thickness, airflow, and other cooling provisions all affect the part temperature. Part temperature should be verified in the end application. | |||||||||
2410121442_LanTu-Micro-SNR4018-4R7MT_C5127371.pdf
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