Magnetic Resin Shielded SMD Power Inductors LanTu Micro SNR8040-680MT for Space and Power Efficiency
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Product Description
Product Overview
The SNR8040 Series Magnetic Resin Shielded SMD Power Inductors from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are automatic assembly constructed power inductors featuring magnetic resin shielding to significantly reduce buzz noise to ultra-low levels. These inductors offer large current handling capability and low DC resistance (DCR), with metallization on the ferrite core ensuring excellent shock resistance and durability. Their closed magnetic circuit design minimizes leakage flux and enhances Electro Magnetic Interference (EMI) resistance. Designed for space and power efficiency, they are suitable for a wide range of applications including LED backlights, flat-screen TVs, notebooks, servers, graphics cards, automotive systems, and DC-DC converters. They comply with RoHS, Halogen Free, and REACH standards.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SNR8040
- Construction: Automatic assembly, Magnetic resin shielded
- Core Material: Ferrite
- 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 | Dimensions (LWH) (mm) | Packing |
|---|---|---|---|---|---|---|---|---|---|---|
| SNR8040-1R0M | 1.0 | 20% | 100 | 1.0 | 0.008 | 0.010 | 9.85 | 6.30 | 8.08.04.0 | Tape & Reel |
| SNR8040-1R5M | 1.5 | 20% | 100 | 1.0 | 0.010 | 0.013 | 8.15 | 5.65 | 8.08.04.0 | Tape & Reel |
| SNR8040-2R2M | 2.2 | 20% | 100 | 1.0 | 0.012 | 0.015 | 7.10 | 5.15 | 8.08.04.0 | Tape & Reel |
| SNR8040-3R3M | 3.3 | 20% | 100 | 1.0 | 0.017 | 0.022 | 6.50 | 4.40 | 8.08.04.0 | Tape & Reel |
| SNR8040-3R6M | 3.6 | 20% | 100 | 1.0 | 0.017 | 0.022 | 6.50 | 4.35 | 8.08.04.0 | Tape & Reel |
| SNR8040-4R7M | 4.7 | 20% | 100 | 1.0 | 0.019 | 0.024 | 5.90 | 4.10 | 8.08.04.0 | Tape & Reel |
| SNR8040-5R6M | 5.6 | 20% | 100 | 1.0 | 0.021 | 0.027 | 4.55 | 3.85 | 8.08.04.0 | Tape & Reel |
| SNR8040-6R8M | 6.8 | 20% | 100 | 1.0 | 0.024 | 0.031 | 4.55 | 3.60 | 8.08.04.0 | Tape & Reel |
| SNR8040-8R2M | 8.2 | 20% | 100 | 1.0 | 0.026 | 0.033 | 4.20 | 3.45 | 8.08.04.0 | Tape & Reel |
| SNR8040-100M | 10 | 20% | 100 | 1.0 | 0.029 | 0.037 | 3.60 | 3.30 | 8.08.04.0 | Tape & Reel |
| SNR8040-150M | 15 | 20% | 100 | 1.0 | 0.047 | 0.061 | 2.95 | 2.80 | 8.08.04.0 | Tape & Reel |
| SNR8040-180M | 18 | 20% | 100 | 1.0 | 0.053 | 0.068 | 2.70 | 2.40 | 8.08.04.0 | Tape & Reel |
| SNR8040-220M | 22 | 20% | 100 | 1.0 | 0.069 | 0.089 | 2.40 | 2.10 | 8.08.04.0 | Tape & Reel |
| SNR8040-270M | 27 | 20% | 100 | 1.0 | 0.078 | 0.101 | 2.15 | 2.00 | 8.08.04.0 | Tape & Reel |
| SNR8040-330M | 33 | 20% | 100 | 1.0 | 0.097 | 0.126 | 2.05 | 1.80 | 8.08.04.0 | Tape & Reel |
| SNR8040-390M | 39 | 20% | 100 | 1.0 | 0.107 | 0.139 | 1.95 | 1.70 | 8.08.04.0 | Tape & Reel |
| SNR8040-470M | 47 | 20% | 100 | 1.0 | 0.136 | 0.176 | 1.75 | 1.55 | 8.08.04.0 | Tape & Reel |
| SNR8040-680M | 68 | 20% | 100 | 1.0 | 0.196 | 0.254 | 1.45 | 1.25 | 8.08.04.0 | Tape & Reel |
| SNR8040-820M | 82 | 20% | 100 | 1.0 | 0.225 | 0.292 | 1.30 | 1.15 | 8.08.04.0 | Tape & Reel |
| SNR8040-101M | 100 | 20% | 100 | 1.0 | 0.290 | 0.377 | 1.15 | 1.00 | 8.08.04.0 | Tape & Reel |
| SNR8040-121M | 120 | 20% | 100 | 1.0 | 0.334 | 0.434 | 1.12 | 0.95 | 8.08.04.0 | Tape & Reel |
| SNR8040-151M | 150 | 20% | 100 | 1.0 | 0.410 | 0.553 | 1.10 | 0.85 | 8.08.04.0 | Tape & Reel |
| SNR8040-221M | 220 | 20% | 100 | 1.0 | 0.599 | 0.778 | 0.85 | 0.80 | 8.08.04.0 | Tape & Reel |
| SNR8040-331M | 330 | 20% | 100 | 1.0 | 0.889 | 1.155 | 0.68 | 0.64 | 8.08.04.0 | Tape & Reel |
| SNR8040-471M | 470 | 20% | 100 | 1.0 | 1.260 | 1.625 | 0.60 | 0.50 | 8.08.04.0 | Tape & Reel |
| SNR8040-681M | 680 | 20% | 100 | 1.0 | 2.040 | 2.652 | 0.50 | 0.45 | 8.08.04.0 | Tape & Reel |
| SNR8040-102M | 1000 | 20% | 100 | 1.0 | 2.800 | 3.640 | 0.40 | 0.35 | 8.08.04.0 | Tape & Reel |
| Environmental Data | Value |
|---|---|
| Operating Temperature | -40 to +125 (Including coils self-temperature rise) |
| Recommended Land Pattern (mm) | A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| SNR8040 | 8.00.3 | 8.00.3 | 4.0 Max | 4.00.3 | 6.30.3 | 2.2 Typ | 3.8 Typ | 7.5 Typ |
| Packaging | Tape Width (mm) | Pocket Pitch (mm) | Pocket Width (mm) | Reel Diameter (mm) | Reel Quantity (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|---|---|
| Tape & Reel | 16 | 12 | 7.5 | 330 | 1000 | 3000 | 12,000 |
| Reliability Test Item | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT) | Meet requirements without any loose terminal | Pulling test based on terminal area; Solder paste thickness: 0.12mm; Keep time: 101s; Speed: 1.0mm/s. |
| Terminal Strength (DIP) | Meet requirements without any loose terminal | Applied force based on terminal diameter (5N to 40N); Duration: 10sec. |
| Resistance to Flexure | No visible mechanical damage. | Flexure: 2mm; Pressurizing Speed: 0.5mm/sec; Keep time: 30 sec. |
| Dropping | No case deformation or change in appearance; No short and no open. | Drop from 1m high in 1 angle, 3 ridges and 6 surfaces, twice in each direction. |
| Solderability | Wetting shall exceed 75% coverage; Terminals must have 95% minimum solder coverage. | Solder temperature: 2402; Duration: 3 sec; Solder: Sn/3.0Ag/0.5Cu; Flux: 25% Resin and 75% ethanol. |
| Vibration | No visible mechanical damage; Inductance change: Within 10%; Q factor change: Within 20%. | Frequency 10-55 Hz, amplitude 1.5mm, 2 hours in 3 directions. |
| Thermal Shock | No visible mechanical damage; Inductance change: Within 10%; Q factor change: Within 20%. | 100 cycles of temperature shock (-55~40 to 85~125). Transforming interval: Max. 20 sec. |
| Low temperature Storage | No visible mechanical damage; Inductance change: Within 10%; Q factor change: Within 20%. | Temperature: -55~-402; Duration: 962 hours. |
| High temperature Storage | No visible mechanical damage; Inductance change: Within 10%; Q factor change: Within 20%. | Temperature: 85~1252; Duration: 962 hours. |
| Damp Heat (Steady States) | No visible mechanical damage; Inductance change: Within 10%; Q factor change: Within 20%. | Temperature: 602; Humidity: 90% to 95% RH; Duration: 962 hours. |
| Heat endurance of Reflow soldering | No significant defects in appearance; L/L10%; Q/Q30%; DCR/DCR10%. | Refer to reflow curve, twice. Peak temperature: 260+0/-5. |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking. | Dip in IPA solvent for 50.5Min, dry for 5Min, brushing 10 times. |
| Overload test | During the test no smoke, no peculiar smell, no fire; The characteristic is normal after test. | Apply twice as rated current for 5 minutes. |
| Voltage resistance test | During the test no breakdown; The characteristic is normal after test. | DC1000V, Current: 1mA, Time: 1Min. |
Recommended reflow soldering curve
The recommended reflow conditions are set according to soldering equipment. Users should adjust and confirm according to their specific environment and equipment.
Reminders for Using These Products
- Storage period is within 12 months under conditions (temperature: 5~40C, humidity: 35 to 65% RH or less).
- Do not use or store in environments with gas corrosion (salt, acid, alkali, etc.).
- Avoid direct contact with terminals by bare hands due to oil secretions.
- Handle products carefully to prevent damage from dropping or inappropriate removal.
- Do not bend terminals excessively to avoid wire fracture.
- Do not rinse coils; contact the manufacturer if cleaning is necessary.
- Do not expose products to magnets or magnetic fields.
- Preheat components before soldering; temperature difference between solder and chip should not exceed 150C.
- Soldering corrections after mounting should be within specification limits to avoid short circuits, performance degradation, or lifespan reduction.
- Allow for sufficient thermal design margin as devices generate heat when powered on.
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Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina