Shielded SMD Power Inductors featuring LanTu Micro SDRI127-100MT with closed magnetic circuit design and low DC resistance
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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 flux, these inductors offer high saturation current and low DC resistance. Their highly accurate dimensions ensure suitability for automatic mounting processes. The series provides a wide range of inductance values and package sizes, adhering to RoHS, Halogen Free, and REACH compliance standards. Ideal for use in VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Product Series: SDRI127 Series
- Type: Shielded SMD Power Inductors
- Magnetic Circuit Design: Closed magnetic circuit
- Compliance: RoHS, Halogen Free, REACH
- Mounting Type: Surface Mount Device (SMD)
- Packaging Options: Bulk Package (B), Tape & Reel (T)
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 |
| Inductance Tolerance | J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% |
Electrical Characteristics (at 25):
| Part No. | Inductance (H) @ 0A | Tolerance | Test Freq. (L) | Q Min. | Test Freq. (Q) | DCR () Max. | Saturation Current (A) Max. | Temperature Rise Current (A) Max. |
|---|---|---|---|---|---|---|---|---|
| SDRI127-1R0N | 1.0 | 30% | 100KHz | 20 | 1MHz | 0.009 | 10.00 | 26.00 |
| SDRI127-2R2N | 2.2 | 30% | 100KHz | 20 | 1MHz | 0.012 | 8.00 | 21.00 |
| SDRI127-2R7N | 2.7 | 30% | 100KHz | 20 | 1MHz | 0.013 | 8.00 | 19.00 |
| SDRI127-3R3N | 3.3 | 30% | 100KHz | 20 | 1MHz | 0.013 | 8.00 | 16.00 |
| SDRI127-3R9N | 3.9 | 30% | 100KHz | 20 | 1MHz | 0.013 | 7.50 | 14.00 |
| SDRI1274R7N | 4.7 | 30% | 100KHz | 30 | 1MHz | 0.016 | 6.80 | 12.00 |
| SDRI127-6R1N | 6.1 | 30% | 100KHz | 30 | 1MHz | 0.018 | 6.60 | 11.50 |
| SDRI127-6R8N | 6.8 | 30% | 100KHz | 30 | 1MHz | 0.019 | 6.60 | 10.50 |
| SDRI127-7R6N | 7.6 | 30% | 100KHz | 30 | 1MHz | 0.020 | 5.90 | 10.00 |
| SDRI127-8R2N | 8.2 | 30% | 100KHz | 30 | 1MHz | 0.020 | 5.60 | 9.50 |
| SDRI127-100N | 10 | 30% | 100KHz | 35 | 1MHz | 0.021 | 5.40 | 9.00 |
| SDRI127-120M | 12 | 20% | 100KHz | 35 | 1MHz | 0.240 | 4.90 | 8.50 |
| SDRI127-150M | 15 | 20% | 100KHz | 35 | 1MHz | 0.027 | 4.50 | 8.00 |
| SDRI127-180M | 18 | 20% | 100KHz | 35 | 1MHz | 0.039 | 3.90 | 7.50 |
| SDRI127-220M | 22 | 20% | 100KHz | 35 | 1MHz | 0.043 | 3.60 | 7.00 |
| SDRI127-270M | 27 | 20% | 100KHz | 35 | 1MHz | 0.046 | 3.40 | 6.50 |
| SDRI127-330M | 33 | 20% | 100KHz | 35 | 1MHz | 0.065 | 3.00 | 5.50 |
| SDRI127-390M | 39 | 20% | 100KHz | 35 | 1MHz | 0.072 | 2.75 | 5.00 |
| SDRI127-470M | 47 | 20% | 100KHz | 35 | 1MHz | 0.100 | 2.50 | 4.60 |
| SDRI127-560M | 56 | 20% | 100KHz | 35 | 1MHz | 0.110 | 2.35 | 4.40 |
| SDRI127-680M | 68 | 20% | 100KHz | 35 | 1MHz | 0.140 | 2.10 | 4.00 |
| SDRI127-820M | 82 | 20% | 100KHz | 35 | 1MHz | 0.160 | 1.95 | 3.80 |
| SDRI127-101M | 100 | 20% | 100KHz | 40 | 0.796MHz | 0.220 | 1.70 | 3.50 |
| SDRI127-121M | 120 | 20% | 100KHz | 40 | 0.796MHz | 0.250 | 1.60 | 3.00 |
| SDRI127-151M | 150 | 20% | 100KHz | 40 | 0.796MHz | 0.280 | 1.42 | 2.70 |
| SDRI127-181M | 180 | 20% | 100KHz | 40 | 0.796MHz | 0.350 | 1.30 | 2.50 |
| SDRI127-221M | 220 | 20% | 100KHz | 40 | 0.796MHz | 0.390 | 1.16 | 2.00 |
| SDRI127-271M | 270 | 20% | 100KHz | 40 | 0.796MHz | 0.560 | 1.06 | 1.95 |
| SDRI127-331M | 330 | 20% | 100KHz | 40 | 0.796MHz | 0.640 | 0.95 | 1.90 |
| SDRI127-391M | 390 | 20% | 100KHz | 40 | 0.796MHz | 0.700 | 0.88 | 1.65 |
| SDRI127-471M | 470 | 20% | 100KHz | 40 | 0.796MHz | 0.980 | 0.79 | 1.50 |
| SDRI127-561M | 560 | 20% | 100KHz | 40 | 0.796MHz | 1.070 | 0.73 | 1.40 |
| SDRI127-681M | 680 | 20% | 100KHz | 40 | 0.796MHz | 1.460 | 0.67 | 1.30 |
| SDRI127-821M | 820 | 20% | 100KHz | 40 | 0.796MHz | 1.640 | 0.60 | 1.10 |
| SDRI127-102M | 1000 | 20% | 100KHz | 40 | 0.796MHz | 1.820 | 0.55 | 1.00 |
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 |
Packaging Specifications:
| Part No. | Tape Dimension W | Tape Dimension P | Tape Dimension H | Reel Dimensions A | Reel Dimensions B | Reel Dimensions C | Reel Dimensions D | 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:
Refer to the provided graph for recommended reflow conditions. Adjustments may be necessary based on specific user equipment and process conditions.
Usage Reminders:
- Storage period: within 12 months. Storage 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 by bare hands due to oil secretions.
- 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 the manufacturer 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 prevent short circuits, performance degradation, or lifespan reduction.
- Sufficient allowance should be made for self-heating (temperature increase) when power is applied.
- For non-magnetic shielded types, careful coil layout on the PCB 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