SMD Power Inductors Featuring LanTu Micro SNR8040-102MT for Graphic Cards and Portable Gaming Devices
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MOQ:
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Delivery Time:
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Product Description
Product Overview
The SNR8040 Series are automatic assembly constructed, magnetic resin shielded SMD power inductors designed to minimize buzz noise to ultra-low levels. These inductors feature a closed magnetic circuit for reduced leakage flux and enhanced EMI resistance, a metallization on ferrite core for excellent shock resistance and durability, and a space-saving design that also conserves power. They are widely used in applications such as LED backlighting, flat-screen TVs, set-top boxes, notebooks, desktop computers, servers, graphic cards, portable gaming devices, personal navigation systems, multimedia devices, automotive systems, telecommunication base stations, and DC-DC converters. The series operates within an environmental temperature range of -40 to +125.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SNR8040
- Type: Magnetic Resin Shielded SMD Power Inductors
- Construction: Automatic assembly, magnetic resin shielded
- Magnetic Circuit: Closed magnetic circuit design
- 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 | |
|---|---|---|---|---|---|---|---|---|---|
| SNR8040-1R0M | 1.0 | 20% | 100 | 1.0 | 0.008 | 0.010 | 9.85 | 6.30 | |
| SNR8040-1R5M | 1.5 | 20% | 100 | 1.0 | 0.010 | 0.013 | 8.15 | 5.65 | |
| SNR8040-2R2M | 2.2 | 20% | 100 | 1.0 | 0.012 | 0.015 | 7.10 | 5.15 | |
| SNR8040-3R3M | 3.3 | 20% | 100 | 1.0 | 0.017 | 0.022 | 6.50 | 4.40 | |
| SNR8040-3R6M | 3.6 | 20% | 100 | 1.0 | 0.017 | 0.022 | 6.50 | 4.35 | |
| SNR8040-4R7M | 4.7 | 20% | 100 | 1.0 | 0.019 | 0.024 | 5.90 | 4.10 | |
| SNR8040-5R6M | 5.6 | 20% | 100 | 1.0 | 0.021 | 0.027 | 4.55 | 3.85 | |
| SNR8040-6R8M | 6.8 | 20% | 100 | 1.0 | 0.024 | 0.031 | 4.55 | 3.60 | |
| SNR8040-8R2M | 8.2 | 20% | 1 | 1.0 | 0.026 | 0.033 | 4.20 | 3.45 | |
| SNR8040-100M | 10 | 20% | 100 | 1.0 | 0.029 | 0.037 | 3.60 | 3.30 | |
| SNR8040-150M | 15 | 20% | 100 | 1.0 | 0.047 | 0.061 | 2.95 | 2.80 | |
| SNR8040-180M | 18 | 20% | 100 | 1.0 | 0.053 | 0.068 | 2.70 | 2.40 | |
| SNR8040-220M | 22 | 20% | 100 | 1.0 | 0.069 | 0.089 | 2.40 | 2.10 | |
| SNR8040-270M | 27 | 20% | 100 | 1.0 | 0.078 | 0.101 | 2.15 | 2.00 | |
| SNR8040-330M | 33 | 20% | 100 | 1.0 | 0.097 | 0.126 | 2.05 | 1.80 | |
| SNR8040-390M | 39 | 20% | 100 | 1.0 | 0.107 | 0.139 | 1.95 | 1.70 | |
| SNR8040-470M | 47 | 20% | 100 | 1.0 | 0.136 | 0.176 | 1.75 | 1.55 | |
| SNR8040-680M | 68 | 20% | 100 | 1.0 | 0.196 | 0.254 | 1.45 | 1.25 | |
| SNR8040-820M | 82 | 20% | 100 | 1.0 | 0.225 | 0.292 | 1.30 | 1.15 | |
| SNR8040-101M | 100 | 20% | 100 | 1.0 | 0.290 | 0.377 | 1.15 | 1.00 | |
| SNR8040-121M | 120 | 20% | 100 | 1.0 | 0.334 | 0.434 | 1.12 | 0.95 | |
| SNR8040-151M | 150 | 20% | 100 | 1.0 | 0.410 | 0.553 | 1.10 | 0.85 | |
| SNR8040-221M | 220 | 20% | 100 | 1.0 | 0.599 | 0.778 | 0.85 | 0.80 | |
| SNR8040-331M | 330 | 20% | 100 | 1.0 | 0.889 | 1.155 | 0.68 | 0.64 | |
| SNR8040-471M | 470 | 20% | 100 | 1.0 | 1.260 | 1.625 | 0.60 | 0.50 | |
| SNR8040-681M | 680 | 20% | 100 | 1.0 | 2.040 | 2.652 | 0.50 | 0.45 | |
| SNR8040-102M | 1000 | 20% | 100 | 1.0 | 2.800 | 3.640 | 0.40 | 0.35 | |
| External Dimensions (LWH) (mm): 8.08.04.0 | |||||||||
| Operating Temperature: -40 to +125 (Including coils self-temperature rise) | |||||||||
| Inductance Tolerance Options: J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% | |||||||||
| Packing: B (Bulk Package), T (Tape & Reel) | |||||||||
| 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 |
| Tape and Reel Specifications (mm) | W | P | W1 | Reel (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|---|
| SNR8040 | 16 | 12 | 7.5 | 100 | 3000 | 12,000 |
| Reliability Test Items | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT) | Meet requirements without any loose terminal. | Pulling test based on sectional 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 (0.35mm to >1.25mm); Duration: 10sec. |
| Resistance to Flexure | No visible mechanical damage. | Solder to jig, apply force (Flexure: 2mm, Speed: 0.5mm/sec, Keep time: 30 sec). |
| 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. |
| 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%. | Solder to jig, subjected to harmonic motion (Amplitude 1.5mm, Frequency 10-55 Hz), 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, go through reflow twice. Peak temperature: 260+0/-5. |
| 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, brush 10 times. |
| Overload test | No smoke, no peculiar smell, no fire during test; Characteristics normal after test. | Apply twice rated current for 5 minutes. |
| Voltage resistance test | No breakdown during test; Characteristics normal after test. | DC1000V, Current: 1mA, Time: 1Min (for parts with two coils). |
Recommended reflow soldering curve: The recommended reflow conditions are set according to our soldering equipment. Users should adjust and confirm according to their environment/equipment.
Reminders for Using These Products:
- Storage period within 12 months under conditions (temperature: 5~40C, humidity: 35 to 65% RH or less).
- Do not use or store in gas corrosive environments (salt, acid, alkali, etc.).
- Avoid direct contact with terminals by bare hands to prevent soldering issues.
- 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 company 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 specified conditions to avoid short circuits, performance degradation, or lifespan reduction.
- Ensure sufficient thermal design margin due to self-heating when power is 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