Shielded SMD Power Inductors LanTu Micro SDRI127-681MT for High Saturation Current and Low DCR Applications
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Product Description
Product Overview
The SDRI127 Series Shielded SMD Power Inductors from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are designed for high-performance power supply applications. Featuring a closed magnetic circuit for reduced leakage, high saturation current, and low DCR, these inductors offer high precision dimensions for automatic mounting. They are suitable for a wide range of applications including VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters. The series complies with RoHS, Halogen Free, and REACH standards.
Product Attributes
- Brand: LANTU MICRO
- Origin: SHENZHEN
- Product Series: SDRI127
- Type: Shielded SMD Power Inductors
- Certifications: RoHS, Halogen Free, REACH Compliance
Technical Specifications
General Specifications:
| Attribute | Value |
|---|---|
| Operating Temperature | -40 to +125 (Including coils self-temperature rise) |
| External Dimensions (LWH) | 12.5 12.5 8.0 mm |
| Inductance Tolerance Options | J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% |
| Packing Options | Bulk Package (B), Tape & Reel (T) |
Electrical Characteristics (Electrical specifications at 25):
| Part No | Inductance (H) @0A | Tolerance | Test Freq Min | Test Freq (MHz) | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max |
|---|---|---|---|---|---|---|---|
| SDRI127-1R0N | 1.0 | 30% | 100KHz | 1 | 0.009 | 26.00 | 10.00 |
| SDRI127-2R2N | 2.2 | 30% | 100KHz | 1 | 0.012 | 21.00 | 8.00 |
| SDRI127-2R7N | 2.7 | 30% | 100KHz | 1 | 0.013 | 19.00 | 8.00 |
| SDRI127-3R3N | 3.3 | 30% | 100KHz | 1 | 0.013 | 16.00 | 8.00 |
| SDRI127-3R9N | 3.9 | 30% | 100KHz | 1 | 0.013 | 14.00 | 7.50 |
| SDRI1274R7N | 4.7 | 30% | 100KHz | 1 | 0.016 | 12.00 | 6.80 |
| SDRI127-6R1N | 6.1 | 30% | 100KHz | 1 | 0.018 | 11.50 | 6.60 |
| SDRI127-6R8N | 6.8 | 30% | 100KHz | 1 | 0.019 | 10.50 | 6.60 |
| SDRI127-7R6N | 7.6 | 30% | 100KHz | 1 | 0.020 | 10.00 | 5.90 |
| SDRI127-8R2N | 8.2 | 30% | 100KHz | 1 | 0.020 | 9.50 | 5.60 |
| SDRI127-100N | 10 | 30% | 100KHz | 1 | 0.021 | 9.00 | 5.40 |
| SDRI127-120M | 12 | 20% | 100KHz | 1 | 0.240 | 8.50 | 4.90 |
| SDRI127-150M | 15 | 20% | 100KHz | 1 | 0.027 | 8.00 | 4.50 |
| SDRI127-180M | 18 | 20% | 100KHz | 1 | 0.039 | 7.50 | 3.90 |
| SDRI127-220M | 22 | 20% | 100KHz | 1 | 0.043 | 7.00 | 3.60 |
| SDRI127-270M | 27 | 20% | 100KHz | 1 | 0.046 | 6.50 | 3.40 |
| SDRI127-330M | 33 | 20% | 100KHz | 1 | 0.065 | 5.50 | 3.00 |
| SDRI127-390M | 39 | 20% | 100KHz | 1 | 0.072 | 5.00 | 2.75 |
| SDRI127-470M | 47 | 20% | 100KHz | 1 | 0.100 | 4.60 | 2.50 |
| SDRI127-560M | 56 | 20% | 100KHz | 1 | 0.110 | 4.40 | 2.35 |
| SDRI127-680M | 68 | 20% | 100KHz | 1 | 0.140 | 4.00 | 2.10 |
| SDRI127-820M | 82 | 20% | 100KHz | 1 | 0.160 | 3.80 | 1.95 |
| SDRI127-101M | 100 | 20% | 100KHz | 0.796 | 0.220 | 3.50 | 1.70 |
| SDRI127-121M | 120 | 20% | 100KHz | 0.796 | 0.250 | 3.00 | 1.60 |
| SDRI127-151M | 150 | 20% | 100KHz | 0.796 | 0.280 | 2.70 | 1.42 |
| SDRI127-181M | 180 | 20% | 100KHz | 0.796 | 0.350 | 2.50 | 1.30 |
| SDRI127-221M | 220 | 20% | 100KHz | 0.796 | 0.390 | 2.00 | 1.16 |
| SDRI127-271M | 270 | 20% | 100KHz | 0.796 | 0.560 | 1.95 | 1.06 |
| SDRI127-331M | 330 | 20% | 100KHz | 0.796 | 0.640 | 1.90 | 0.95 |
| SDRI127-391M | 390 | 20% | 100KHz | 0.796 | 0.700 | 1.65 | 0.88 |
| SDRI127-471M | 470 | 20% | 100KHz | 0.796 | 0.980 | 1.50 | 0.79 |
| SDRI127-561M | 560 | 20% | 100KHz | 0.796 | 1.070 | 1.40 | 0.73 |
| SDRI127-681M | 680 | 20% | 100KHz | 0.796 | 1.460 | 1.30 | 0.67 |
| SDRI127-821M | 820 | 20% | 100KHz | 0.796 | 1.640 | 1.10 | 0.60 |
| SDRI127-102M | 1000 | 20% | 100KHz | 0.796 | 1.820 | 1.00 | 0.55 |
Definitions:
- Saturation Current: DC current at which inductance drops 30% from its value without current.
- Temperature Rise Current: The actual value of DC current when the temperature rise is T 40 (Ta=25).
- Rated DC Current: The lesser value of Isat or Irms.
Dimensions (mm):
| Part No | A (Max) | B (Max) | C (Max) | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| SDRI127 | 12.5 | 12.5 | 8.0 | 5.0 | 7.6 | 2.9 | 7.0 | 5.4 |
Recommended Land Pattern:
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Reminders for Using these Products
- Storage: Within 12 months, under conditions of temperature 5~40C and humidity 35~65% RH or less. Exceeding storage time may lead to solderability deterioration of terminal electrodes.
- Environment: Avoid use and storage in environments with gas corrosion (salt, acid, alkali, etc.).
- Handling: Avoid direct contact with terminals by bare hands due to oil secretions that may inhibit soldering. Handle products carefully to prevent damage from dropping or improper removal.
- Terminal Bending: Do not bend terminals with excessive stress to prevent 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. The temperature difference between solder and chip temperature should not exceed 150C.
- Soldering Corrections: Post-mounting soldering corrections should be within specified conditions. Overheating may cause short circuits, performance degradation, or reduced lifespan.
- Thermal Design: Account for self-heating (temperature increase) when power is on, ensuring sufficient thermal design margin.
- Non-Magnetic Shield Type: Careful coil layout is required for non-magnetic shield types to prevent malfunctions due to magnetic interference.
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