Shielded SMD Power Inductors LanTu Micro SDRI127-331MT Designed for in DC DC Converters and Notebooks
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Product Description
Shielded SMD Power Inductors - SDRI127 Series
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 design to minimize leakage, these inductors offer high saturation current and low DC resistance. Their high-precision dimensions ensure suitability for automatic mounting, making them ideal for a wide range of electronic devices including VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters.
Product Attributes
- Brand: LANTU
- Origin: SHENZHEN
- Certifications: RoHS, Halogen Free, REACH Compliance
- Type: Shielded SMD Power Inductors
- Magnetic Circuit Design: Closed magnetic circuit
Technical Specifications
General Specifications:
| Feature | Description |
|---|---|
| Operating Temperature | -40 to +125 (Including coil self-temperature rise) |
| External Dimensions (LWH) | 12.5 12.5 8.0 mm |
| Test Equipment - Inductance (L) | HP4284A, HP4285A or equivalent LCR meter |
| Test Equipment - Current (Isat & Irms) | HP4284+42841A or equivalent |
| Test Equipment - Quality Factor (Q) | HP4285A or equivalent |
| Test Equipment - DC Resistance (DCR) | Chroma 16502 or equivalent |
Electrical Characteristics:
| Part No. | Inductance (L) (H) | Tolerance | Test Freq (@0A) | Q Min (@ Test Freq) | DCR () Max | Saturation Current (Isat) (A) Max | Temperature Rise Current (Irms) (A) Max |
|---|---|---|---|---|---|---|---|
| SDRI127-1R0N | 1.0 | 30% | 100KHz | 20 | 0.009 | 26.00 | 10.00 |
| SDRI127-2R2N | 2.2 | 30% | 100KHz | 20 | 0.012 | 21.00 | 8.00 |
| SDRI127-2R7N | 2.7 | 30% | 100KHz | 20 | 0.013 | 19.00 | 8.00 |
| SDRI127-3R3N | 3.3 | 30% | 100KHz | 20 | 0.013 | 16.00 | 8.00 |
| SDRI127-3R9N | 3.9 | 30% | 100KHz | 20 | 0.013 | 14.00 | 7.50 |
| SDRI1274R7N | 4.7 | 30% | 100KHz | 30 | 0.016 | 12.00 | 6.80 |
| SDRI127-6R1N | 6.1 | 30% | 100KHz | 30 | 0.018 | 11.50 | 6.60 |
| SDRI127-6R8N | 6.8 | 30% | 100KHz | 30 | 0.019 | 10.50 | 6.60 |
| SDRI127-7R6N | 7.6 | 30% | 100KHz | 30 | 0.020 | 10.00 | 5.90 |
| SDRI127-8R2N | 8.2 | 30% | 100KHz | 30 | 0.020 | 9.50 | 5.60 |
| SDRI127-100N | 10 | 30% | 100KHz | 35 | 0.021 | 9.00 | 5.40 |
| SDRI127-120M | 12 | 20% | 100KHz | 35 | 0.240 | 8.50 | 4.90 |
| SDRI127-150M | 15 | 20% | 100KHz | 35 | 0.027 | 8.00 | 4.50 |
| SDRI127-180M | 18 | 20% | 100KHz | 35 | 0.039 | 7.50 | 3.90 |
| SDRI127-220M | 22 | 20% | 100KHz | 35 | 0.043 | 7.00 | 3.60 |
| SDRI127-270M | 27 | 20% | 100KHz | 35 | 0.046 | 6.50 | 3.40 |
| SDRI127-330M | 33 | 20% | 100KHz | 35 | 0.065 | 5.50 | 3.00 |
| SDRI127-390M | 39 | 20% | 100KHz | 35 | 0.072 | 5.00 | 2.75 |
| SDRI127-470M | 47 | 20% | 100KHz | 35 | 0.100 | 4.60 | 2.50 |
| SDRI127-560M | 56 | 20% | 100KHz | 35 | 0.110 | 4.40 | 2.35 |
| SDRI127-680M | 68 | 20% | 100KHz | 35 | 0.140 | 4.00 | 2.10 |
| SDRI127-820M | 82 | 20% | 100KHz | 35 | 0.160 | 3.80 | 1.95 |
| SDRI127-101M | 100 | 20% | 100KHz | 40 | 0.220 | 3.50 | 1.70 |
| SDRI127-121M | 120 | 20% | 100KHz | 40 | 0.250 | 3.00 | 1.60 |
| SDRI127-151M | 150 | 20% | 100KHz | 40 | 0.280 | 2.70 | 1.42 |
| SDRI127-181M | 180 | 20% | 100KHz | 40 | 0.350 | 2.50 | 1.30 |
| SDRI127-221M | 220 | 20% | 100KHz | 40 | 0.390 | 2.00 | 1.16 |
| SDRI127-271M | 270 | 20% | 100KHz | 40 | 0.560 | 1.95 | 1.06 |
| SDRI127-331M | 330 | 20% | 100KHz | 40 | 0.640 | 1.90 | 0.95 |
| SDRI127-391M | 390 | 20% | 100KHz | 40 | 0.700 | 1.65 | 0.88 |
| SDRI127-471M | 470 | 20% | 100KHz | 40 | 0.980 | 1.50 | 0.79 |
| SDRI127-561M | 560 | 20% | 100KHz | 40 | 1.070 | 1.40 | 0.73 |
| SDRI127-681M | 680 | 20% | 100KHz | 40 | 1.460 | 1.30 | 0.67 |
| SDRI127-821M | 820 | 20% | 100KHz | 40 | 1.640 | 1.10 | 0.60 |
| SDRI127-102M | 1000 | 20% | 100KHz | 40 | 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.
Product Identification Example: SDRI 127 470 M T
| Component | Description |
|---|---|
| SDRI | Type |
| 127 | Dimensions (12.512.58.0 mm) |
| 470 | Inductance (47 H) |
| M | Inductance Tolerance (20%) |
| T | Packing (Tape & Reel) |
Shape and 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 |
Packaging:
| Part No. | Tape Dimension W (mm) | Tape Dimension P (mm) | Tape Dimension H (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) |
|---|---|---|---|---|---|---|---|---|---|---|
| SDRI127 | 24 | 16 | 11.5 | 24.4 | 100 | 13 | 330 | 500 | 1000 | 4000 |
Cover Tape Peel Off Condition:
- Cover tape peel force: 10 to 120g
- Noodle strip peeling angle: 165 to 180
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: Within 12 months. Conditions: Temperature 5~40C, Humidity 35~65% RH or less.
- Avoid use and storage in corrosive environments (salt, acid, alkali, etc.).
- Avoid direct contact with terminals with bare hands to prevent reduced solderability.
- Handle products carefully to prevent damage from dropping or improper removal.
- Do not bend terminals excessively to avoid wire fracture.
- Do not rinse coils; contact LANTU if cleaning is necessary.
- Keep away from 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.
- Allow for sufficient thermal design margin due to self-heating when powered on.
- For non-magnetic shielded types, careful coil layout is required to prevent malfunctions 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