Product Overview
The SNR5040 Series Magnetic Resin Shielded SMD Power Inductors from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are automatic assembly constructed power inductors designed for efficient power management. Featuring a magnetic-resin shielded construction, these inductors significantly reduce buzz noise to ultra-low levels. They offer large current handling capabilities with low DC resistance, and a closed magnetic circuit design minimizes leakage flux and enhances EMI resistance. Their compact size saves PCB real estate and reduces power consumption. These inductors are widely used in electronic devices 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: SNR5040
- Construction: Magnetic Resin Shielded SMD Power Inductor
- Certifications: RoHS, Halogen Free, REACH Compliance
Technical Specifications
| Part No. | Inductance (H) | Inductance Tolerance | Test Frequency (KHz) | Test Voltage (V) | DCR () Typical | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max |
| SNR5040-1R0M | 1.0 | 20% | 100 | 1.0 | 0.012 | 0.018 | 7.35 | 4.90 |
| SNR5040-1R2M | 1.2 | 20% | 100 | 1.0 | 0.016 | 0.021 | 6.50 | 4.30 |
| SNR5040-1R5M | 1.5 | 20% | 100 | 1.0 | 0.015 | 0.020 | 6.30 | 4.30 |
| SNR5040-2R2M | 2.2 | 20% | 100 | 1.0 | 0.019 | 0.025 | 4.90 | 3.80 |
| SNR5040-3R3M | 3.3 | 20% | 100 | 1.0 | 0.024 | 0.031 | 3.95 | 3.40 |
| SNR5040-4R7M | 4.7 | 20% | 100 | 1.0 | 0.030 | 0.039 | 3.50 | 3.00 |
| SNR5040-6R8M | 6.8 | 20% | 100 | 1.0 | 0.043 | 0.056 | 2.90 | 2.50 |
| SNR5040-8R2M | 8.2 | 20% | 100 | 1.0 | 0.050 | 0.070 | 2.70 | 2.30 |
| SNR5040-100M | 10 | 20% | 100 | 1.0 | 0.064 | 0.082 | 2.35 | 2.10 |
| SNR5040-120M | 12 | 20% | 100 | 1.0 | 0.077 | 0.102 | 2.20 | 2.00 |
| SNR5040-150M | 15 | 20% | 100 | 1.0 | 0.086 | 0.115 | 2.00 | 2.00 |
| SNR5040-220M | 22 | 20% | 100 | 1.0 | 0.129 | 0.167 | 1.60 | 1.50 |
| SNR5040-330M | 33 | 20% | 100 | 1.0 | 0.188 | 0.244 | 1.30 | 1.20 |
| SNR5040-470M | 47 | 20% | 100 | 1.0 | 0.272 | 0.353 | 1.10 | 1.00 |
| SNR5040-680M | 68 | 20% | 100 | 1.0 | 0.400 | 0.520 | 0.90 | 0.80 |
| SNR5040-820M | 82 | 20% | 100 | 1.0 | 0.560 | 0.660 | 0.80 | 0.75 |
| SNR5040-101M | 100 | 20% | 100 | 1.0 | 0.509 | 0.728 | 0.75 | 0.70 |
| SNR5040-121M | 120 | 20% | 100 | 1.0 | 0.665 | 0.864 | 0.70 | 0.65 |
| SNR5040-151M | 150 | 20% | 100 | 1.0 | 0.750 | 0.975 | 0.65 | 0.60 |
| SNR5040-221M | 220 | 20% | 100 | 1.0 | 1.400 | 1.820 | 0.48 | 0.40 |
| SNR5040-331M | 330 | 20% | 100 | 1.0 | 2.000 | 2.730 | 0.42 | 0.40 |
| SNR5040-471M | 470 | 20% | 100 | 1.0 | 3.000 | 3.900 | 0.37 | 0.35 |
| SNR5040-681M | 680 | 20% | 100 | 1.0 | 3.900 | 5.070 | 0.30 | 0.25 |
| SNR5040-102M | 1000 | 20% | 100 | 1.0 | 6.000 | 7.800 | 0.21 | 0.23 |
| Shape and Dimensions (mm) | Recommended Land Pattern |
| Part No. | A | B | C (Max) | D | E | F (Typ) | G (Typ) | H (Typ) |
| SNR5040 | 5.00.3 | 5.00.3 | 4.0 | 2.50.2 | 4.00.2 | 1.4 | 2.3 | 4.2 |
| Packaging |
| Part No. | Tape Dimension W (mm) | Tape Dimension P (mm) | Tape Dimension W1 (mm) | Reel Dimensions (mm) | Reel (PCS) | Inside Box (PCS) | Outside Carton (PCS) | Total Quantity per Carton |
| SNR5040 | 12 | 8 | 5.5 | 12.4 x 330 | 1500 | 6000 | 24,000 |
| Environmental Data |
| Parameter | Value |
| Operating Temperature | -40 to +125 (Including coils self-temperature rise) |
| Test Equipment |
| Parameter | 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 Example |
| Component | Meaning | Example |
| SNR 5040 470 M T | SNR: Type (Shielded SMD Power Inductor) | SNR |
| 5040: Dimensions (5.04.04.0 mm) | 5040 |
| 470: Inductance (47 H) | 470 |
| M: Inductance Tolerance (20%) | M |
| T: Packing (Tape & Reel) | T |
Applications
- LED backlight
- Flat-screen TVs
- Blue-ray disc players
- Set top boxes
- Notebook computers
- Desktop computers
- Servers
- Graphic cards
- Portable gaming devices
- Personal navigation systems
- Personal multimedia devices
- Automotive systems
- Telecommunication base stations
- DC-DC Converters
