Magnetic Resin Shielded Power Inductor LanTu Micro SNR8040-3R3MT for LED Backlights and Graphic Cards
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MOQ:
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Delivery Time:
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Product Description
Product Overview
The SNR8040 Series Magnetic Resin Shielded SMD Power Inductors by SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are automatic assembly constructed power inductors designed for high-performance applications. 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, a closed magnetic circuit design that minimizes leakage flux and enhances EMI resistance, and a space-saving, power-efficient profile. These inductors are widely used in LED backlights, flat-screen TVs, set-top boxes, notebooks, desktop computers, servers, graphic cards, portable gaming devices, personal navigation systems, multimedia devices, automotive products, communication equipment, and DC-DC converters. They are compliant 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
- Certifications: RoHS, Halogen Free, REACH Compliance
- Core Material: Ferrite Core (Metallization on Ferrite Core)
Technical Specifications
| Part No. | Inductance (H) | Inductance Tolerance | Test Frequency (KHz) | Test Voltage (V) | Max DCR () | Saturation Current (A) Max | Temperature Rise Current (A) Max | Dimensions (LWH mm) | Packing |
|---|---|---|---|---|---|---|---|---|---|
| SNR8040-1R0M | 1.0 | 20% | 100 | 1.0 | 0.010 | 9.85 | 6.30 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-1R5M | 1.5 | 20% | 100 | 1.0 | 0.013 | 8.15 | 5.65 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-2R2M | 2.2 | 20% | 100 | 1.0 | 0.015 | 7.10 | 5.15 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-3R3M | 3.3 | 20% | 100 | 1.0 | 0.022 | 6.50 | 4.40 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-3R6M | 3.6 | 20% | 100 | 1.0 | 0.022 | 6.50 | 4.35 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-4R7M | 4.7 | 20% | 100 | 1.0 | 0.024 | 5.90 | 4.10 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-5R6M | 5.6 | 20% | 100 | 1.0 | 0.027 | 4.55 | 3.85 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-6R8M | 6.8 | 20% | 100 | 1.0 | 0.031 | 4.55 | 3.60 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-8R2M | 8.2 | 20% | 100 | 1.0 | 0.033 | 4.20 | 3.45 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-100M | 10 | 20% | 100 | 1.0 | 0.037 | 3.60 | 3.30 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-150M | 15 | 20% | 100 | 1.0 | 0.061 | 2.95 | 2.80 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-180M | 18 | 20% | 100 | 1.0 | 0.068 | 2.70 | 2.40 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-220M | 22 | 20% | 100 | 1.0 | 0.089 | 2.40 | 2.10 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-270M | 27 | 20% | 100 | 1.0 | 0.101 | 2.15 | 2.00 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-330M | 33 | 20% | 100 | 1.0 | 0.126 | 2.05 | 1.80 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-390M | 39 | 20% | 100 | 1.0 | 0.139 | 1.95 | 1.70 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-470M | 47 | 20% | 100 | 1.0 | 0.176 | 1.75 | 1.55 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-680M | 68 | 20% | 100 | 1.0 | 0.254 | 1.45 | 1.25 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-820M | 82 | 20% | 100 | 1.0 | 0.292 | 1.30 | 1.15 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-101M | 100 | 20% | 100 | 1.0 | 0.377 | 1.15 | 1.00 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-121M | 120 | 20% | 100 | 1.0 | 0.434 | 1.12 | 0.95 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-151M | 150 | 20% | 100 | 1.0 | 0.553 | 1.10 | 0.85 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-221M | 220 | 20% | 100 | 1.0 | 0.778 | 0.85 | 0.80 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-331M | 330 | 20% | 100 | 1.0 | 1.155 | 0.68 | 0.64 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-471M | 470 | 20% | 100 | 1.0 | 1.625 | 0.60 | 0.50 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-681M | 680 | 20% | 100 | 1.0 | 2.652 | 0.50 | 0.45 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| SNR8040-102M | 1000 | 20% | 100 | 1.0 | 3.640 | 0.40 | 0.35 | 8.08.04.0 | Tape & Reel (T) / Bulk Package (B) |
| Environmental Data: | |||||||||
| Operating Temperature: -40 to +125 (Including coils self-temperature rise) | |||||||||
| Test Equipment: | |||||||||
| Inductance: HP4284A, HP4285A LCR meter or equivalent | |||||||||
| Saturation & Temperature Rise Current: HP4284+42841A or equivalent | |||||||||
| DCR: Chroma 16502 or equivalent | |||||||||
| Recommended Land Pattern (mm): | |||||||||
| A: 8.00.3, B: 8.00.3, C: 4.0 Max, D: 4.00.3, E: 6.30.3, F: 2.2 Typ, G: 3.8 Typ, H: 7.5 Typ | |||||||||
| Inductance Tolerance Options: J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% | |||||||||
| Packing Options: B: Bulk Package, T: Tape & Reel | |||||||||
| Saturation Current Definition: DC current at which inductance drops 30% from its value without current. | |||||||||
| Temperature Rise Current Definition: The actual value of DC current when the temperature rise is T 40 (Ta=25). | |||||||||
| Rated DC Current: The lesser of Isat or Irms. | |||||||||
Packaging Information
| 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) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|---|---|---|---|---|
| SNR8040 | 16 | 12 | 7.5 | 16.4 | 100 | 13 | 330 | 1000 | 3000 | 12,000 |
Cover Tape Peel Off Condition:
- Cover tape peel force: 10 to 120g
- Noodle strip peeling angle: 165 to 180
Reliability Testing
| Item | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT) | Meet requirements without any loose terminal. | Pulling test based on sectional area of terminal (GB/T 2423.60-2008). 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 (GB/T 2423.60-2008). Pull Force applied gradually and maintained for 10 seconds. |
| Resistance to Flexure | No visible mechanical damage. | Solder to test jig, apply force (Flexure: 2mm, Speed: 0.5mm/sec, Keep time: 30 sec) (JIS C 5321:1997). |
| Dropping | No case deformation or change in appearance. No short and no open. | Drop packaged products from 1m high in 1 angle, 3 ridges and 6 surfaces, twice in each direction (GB/T 2423.7-2018). |
| 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 (GB/T 2423.28-2005). |
| Vibration | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | Subject to simple harmonic motion (Amplitude 1.5mm, Frequency 10-55 Hz) for 2 hours in 3 mutually perpendicular directions (GB/T 2423.10-2019). |
| Thermal Shock | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | 100 cycles of temperature shock from (85~125) to (-55~40). Transforming interval: Max. 20 sec (GB/T 2423.22-2012 Method Na). |
| Low temperature Storage | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | Temperature: -55~-402, Duration: 962 hours (GB/T 2423.1-2008 Method Ab). |
| High temperature Storage | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | Temperature: 85~1252, Duration: 962 hours (GB/T 2423.2-2008 Method Bb). |
| 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 (GB/T 2423.3-2016). |
| Heat endurance of Reflow soldering | No significant defects in appearance. L/L10%. Q/Q30%. DCR/DCR10%. | Refer to reflow curve, undergo reflow twice. Peak temperature: 260+0/-5 (GJB 360B-2009). |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking. | Dip parts into IPA solvent for 50.5Min, dry for 5Min, then brush 10 times (IEC 68-2-45:1993). |
| Overload test | During the test no smoke, no peculiar smell, no fire. Characteristics are normal after test. | Apply twice the rated current for 5 minutes (JIS C5311-6.13). |
| Voltage resistance test | During the test no breakdown. Characteristics are normal after test. | DC1000V, Current: 1mA, Time: 1Min (MIL-STD-202G Method 301). |
Recommended Reflow Soldering Curve
The recommended reflow conditions are set according to the soldering equipment. Users should adjust and confirm conditions based on their specific environment and equipment.
Usage Precautions
- Storage: Within 12 months, under conditions of 5~40C and 35~65% RH. Solderability may deteriorate beyond this period.
- Environment: Avoid use and storage in gas corrosive environments (salt, acid, alkali, etc.).
- Handling: Avoid direct contact with terminals by bare hands to prevent solderability issues. Handle with care to prevent damage from dropping.
- Terminal Bending: Do not excessively bend terminals to avoid wire fracture.
- Cleaning: Do not clean products; contact the manufacturer if cleaning is necessary.
- Magnetic Fields: Do not expose products to magnets or magnetic fields.
- Preheating: Always preheat components before soldering. The temperature difference between solder and chip should not exceed 150C.
- Soldering Corrections: Post-mounting soldering corrections must be within specified conditions. Overheating can cause short circuits, performance degradation, or reduced lifespan.
- Thermal Design: Account for self-heating when the device is powered on; ensure sufficient thermal design margin.
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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