Shielded SMD Power Inductors LanTu Micro SDRI74-6R8NT Designed for Automatic Mounting and Various Package Sizes
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Product Description
Product Overview
The SDRI74 Series Shielded SMD Power Inductors from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are designed for high-performance power supply applications. These inductors feature a high saturation current, low DC resistance, and a closed magnetic circuit design to minimize leakage. Their highly accurate dimensions ensure suitability for automatic mounting, and they are available in various package sizes and a wide inductance range. These inductors comply with RoHS, Halogen Free, and REACH standards, making them ideal for use in VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters.
Product Attributes
- Brand: LANTU MICRO ELECTRIC TECHNOLOGY
- Origin: SHENZHEN, CHINA
- Series: SDRI74
- Product Type: Shielded SMD Power Inductors
- Certifications: RoHS, Halogen Free, REACH Compliance
- Magnetic Circuit Design: Closed magnetic circuit
Technical Specifications
| Part No. | Inductance (H) | Tolerance | Test Freq (L @ 0A) | Q Factor Min (Test Freq) | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max | Dimensions (LWH) (mm) | |
|---|---|---|---|---|---|---|---|---|---|
| SDRI74-2R2N | 2.2 | 30% | 100KHz | 30 (1MHz) | 0.0147 | 5.20 | 5.00 | 7.57.54.5 | |
| SDRI74-3R3N | 3.3 | 30% | 100KHz | 30 (1MHz) | 0.0214 | 4.60 | 4.00 | 7.57.54.5 | |
| SDRI74-4R7N | 4.7 | 30% | 100KHz | 30 (1MHz) | 0.0310 | 3.80 | 3.40 | 7.57.54.5 | |
| SDRI74-6R8N | 6.8 | 30% | 100KHz | 30 (1MHz) | 0.035 | 3.20 | 2.30 | 7.57.54.5 | |
| SDRI74-8R2N | 8.2 | 30% | 100KHz | 30 (1MHz) | 0.042 | 3.00 | 2.10 | 7.57.54.5 | |
| SDRI74-100N | 10 | 30% | 100KHz | 35 (1MHz) | 0.049 | 2.95 | 1.84 | 7.57.54.5 | |
| SDRI74-120M | 12 | 20% | 100KHz | 35 (1MHz) | 0.058 | 2.85 | 1.71 | 7.57.54.5 | |
| SDRI74-150M | 15 | 20% | 100KHz | 35 (1MHz) | 0.081 | 2.80 | 1.47 | 7.57.54.5 | |
| SDRI74-180M | 18 | 20% | 100KHz | 35 (1MHz) | 0.091 | 2.50 | 1.31 | 7.57.54.5 | |
| SDRI74-220M | 22 | 20% | 100KHz | 35 (1MHz) | 0.110 | 2.10 | 1.23 | 7.57.54.5 | |
| SDRI74-270M | 27 | 20% | 100KHz | 35 (1MHz) | 0.150 | 1.90 | 1.12 | 7.57.54.5 | |
| SDRI74-330M | 33 | 20% | 100KHz | 35 (1MHz) | 0.170 | 1.80 | 0.96 | 7.57.54.5 | |
| SDRI74-390M | 39 | 20% | 100KHz | 35 (1MHz) | 0.230 | 1.70 | 0.91 | 7.57.54.5 | |
| SDRI74-470M | 47 | 20% | 100KHz | 35 (1MHz) | 0.260 | 1.50 | 0.88 | 7.57.54.5 | |
| SDRI74-560M | 56 | 20% | 100KHz | 35 (1MHz) | 0.350 | 1.32 | 0.75 | 7.57.54.5 | |
| SDRI74-680M | 68 | 20% | 1 | 100KHz | 35 (1MHz) | 0.380 | 1.08 | 0.69 | 7.57.54.5 |
| SDRI74-820M | 82 | 20% | 100KHz | 35 (1MHz) | 0.430 | 1.05 | 0.61 | 7.57.54.5 | |
| SDRI74-101M | 100 | 20% | 100KHz | 40 (0.796MHz) | 0.610 | 1.02 | 0.60 | 7.57.54.5 | |
| SDRI74-121M | 120 | 20% | 100KHz | 40 (0.796MHz) | 0.660 | 0.98 | 0.52 | 7.57.54.5 | |
| SDRI74-151M | 150 | 20% | 100KHz | 40 (0.796MHz) | 0.880 | 0.95 | 0.46 | 7.57.54.5 | |
| SDRI74-181M | 180 | 20% | 100KHz | 40 (0.796MHz) | 0.980 | 0.74 | 0.42 | 7.57.54.5 | |
| SDRI74-221M | 220 | 20% | 100KHz | 40 (0.796MHz) | 1.170 | 0.70 | 0.36 | 7.57.54.5 | |
| SDRI74-271M | 270 | 20% | 100KHz | 40 (0.796MHz) | 1.640 | 0.57 | 0.34 | 7.57.54.5 | |
| SDRI74-331M | 330 | 20% | 100KHz | 40 (0.796MHz) | 1.860 | 0.56 | 0.32 | 7.57.54.5 | |
| SDRI74-391M | 390 | 20% | 100KHz | 40 (0.796MHz) | 2.850 | 0.45 | 0.29 | 7.57.54.5 | |
| SDRI74-471M | 470 | 20% | 100KHz | 40 (0.796MHz) | 3.010 | 0.45 | 0.26 | 7.57.54.5 | |
| SDRI74-561M | 560 | 20% | 100KHz | 40 (0.796MHz) | 3.620 | 0.43 | 0.23 | 7.57.54.5 | |
| SDRI74-681M | 680 | 20% | 100KHz | 40 (0.796MHz) | 4.630 | 0.37 | 0.22 | 7.57.54.5 | |
| SDRI74-821M | 820 | 20% | 100KHz | 40 (0.796MHz) | 5.200 | 0.35 | 0.20 | 7.57.54.5 | |
| SDRI74-102M | 1000 | 20% | 100KHz | 40 (0.796MHz) | 6.000 | 0.33 | 0.18 | 7.57.54.5 |
Environmental Data
- Operating Temperature: -55 to +125 (Including coils self-temperature rise)
Test Equipment
- Inductance (L): HP4284A, HP4285A or equivalent LCR meter
- Saturation Current (Isat) & Temperature Rise Current (Irms): HP4284+42841A or equivalent
- Quality Factor (Q): HP4285A or equivalent
- DC Resistance (DCR): Chroma 16502 or equivalent
Product Identification
Format: SDRI 74 470 M T
- Type: SDRI (Shielded SMD Power Inductors)
- Series: 74
- Inductance: e.g., 470 (47 H)
- Inductance Tolerance: J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30%
- Packing: T (Tape & Reel), B (Bulk Package)
External Dimensions (LWH)
- Series: SDRI74
- Dimensions: 7.57.54.5 mm (Max)
Recommended Land Pattern
| Part No. | A (Max) | B (Max) | C (Max) | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| SDRI74 | 7.5 | 7.5 | 4.5 | 1.8 | 5.0 | 1.6 | 4.8 | 2.2 |
Packaging
- Tape and Reel Specifications: Available dimensions for tape and reel packaging.
- Reel Dimensions: Available dimensions for reels.
- Tape Dimension: Available dimensions for tape.
- Cover tape peel off condition: Peel force 10 to 120g, Peel angle 165 to 180.
- Packing Quantity: Specific quantities for Tape & Reel, Inside Box, and Outside Carton are detailed in the source document.
Reliability Testing
- Terminal Strength: Tests for SMT and DIP terminals with specified forces and durations.
- Resistance to Flexure: Test method and requirements for resistance to bending.
- Dropping: Test method and requirements for dropping packaged products.
- Solderability: Test method and requirements for solderability.
- Vibration: Test method and requirements for vibration resistance.
- Thermal Shock: Test method and requirements for thermal shock resistance.
- Low temperature Storage: Test method and requirements for low temperature storage.
- High temperature Storage: Test method and requirements for high temperature storage.
- Damp Heat (Steady States): Test method and requirements for damp heat resistance.
- Heat endurance of Reflow soldering: Test method and requirements for reflow soldering endurance.
- Resistance to solvent test: Test method and requirements for resistance to solvents.
- Overload test: Test method and requirements for overload conditions.
- Voltage resistance test: Test method and requirements for insulation voltage resistance.
Recommended Reflow Soldering Curve
The recommended reflow conditions are provided as a guideline and should be adjusted based on specific user environments and equipment.
Reminders for Using These Products
- Storage: Within 12 months, under conditions of 5~40C and 35~65% RH.
- Environment: Avoid use and storage in corrosive gas environments (salt, acid, alkali, etc.).
- Handling: Avoid touching terminals directly with bare hands; handle products carefully to prevent damage.
- Terminal Bending: Do not bend terminals excessively to avoid wire fracture.
- Cleaning: Do not rinse coils; contact the manufacturer if cleaning is necessary.
- Magnetic Fields: Do not expose products to magnets or magnetic fields.
- Preheating: Ensure preheating before soldering, with a temperature difference not exceeding 150C between solder and chip temperature.
- Soldering Corrections: Perform corrections within specified conditions; overheating may cause issues.
- Thermal Design: Allow sufficient margin for self-heating when power is on.
- Layout: For non-magnetic shielded types, carefully consider coil placement on the PCB to prevent malfunction due to magnetic interference.
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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