High Saturation Current LanTu Micro SDRI125-330MT Shielded SMD Power Inductor for DC DC Converters
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Product Description
Product Overview
The SDRI125 Series Shielded SMD Power Inductors from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are designed for high saturation current and low DCR, featuring a closed magnetic circuit to minimize leakage. These inductors offer high-precision dimensions suitable for automatic mounting, available in various package sizes and inductance ranges. They comply with RoHS, Halogen Free, and REACH standards. Applications include power supplies for VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters.
Product Attributes
- Brand: LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Product Series: SDRI125 Series
- Type: Shielded SMD Power Inductors
- Certifications: RoHS, Halogen Free, REACH Compliance
- Magnetic Circuit Design: Closed magnetic circuit
- Mounting Type: SMD (Surface Mount Device)
- Packaging Options: Bulk Package (B), Tape & Reel (T)
Technical Specifications
| Part No. | Inductance (H) | Tolerance | Test Frequency (L @ 0A) | Q Factor Min (Test Freq) | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max |
|---|---|---|---|---|---|---|---|
| SDRI125-1R0N | 1.0 | 30% | 100KHz | 20 (1MHz) | 0.010 | 15.80 | 8.00 |
| SDRI125-2R2N | 2.2 | 30% | 100KHz | 20 (1MHz) | 0.014 | 13.50 | 7.80 |
| SDRI125-2R4N | 2.4 | 30% | 100KHz | 20 (1MHz) | 0.014 | 12.00 | 7.50 |
| SDRI125-3R3N | 3.3 | 30% | 100KHz | 20 (1MHz) | 0.017 | 10.50 | 6.80 |
| SDRI125-4R7N | 4.7 | 30% | 100KHz | 30 (1MHz) | 0.020 | 9.50 | 5.60 |
| SDRI125-5R8N | 5.8 | 30% | 100KHz | 30 (1MHz) | 0.021 | 8.60 | 5.20 |
| SDRI125-8R2N | 8.2 | 30% | 100KHz | 30 (1MHz) | 0.023 | 7.00 | 4.40 |
| SDRI125-100N | 10 | 30% | 100KHz | 35 (1MHz) | 0.025 | 6.50 | 4.00 |
| SDRI125-120M | 12 | 20% | 100KHz | 35 (1MHz) | 0.027 | 6.00 | 3.50 |
| SDRI125-150M | 15 | 20% | 100KHz | 35 (1MHz) | 0.030 | 5.40 | 3.30 |
| SDRI125-180M | 18 | 20% | 100KHz | 35 (1MHz) | 0.034 | 4.90 | 3.00 |
| SDRI125-220M | 22 | 20% | 100KHz | 35 (1MHz) | 0.036 | 4.70 | 2.80 |
| SDRI125-270M | 27 | 20% | 100KHz | 35 (1MHz) | 0.051 | 4.00 | 2.30 |
| SDRI125-330M | 33 | 20% | 100KHz | 35 (1MHz) | 0.057 | 3.58 | 2.10 |
| SDRI125-390M | 39 | 20% | 100KHz | 35 (1MHz) | 0.068 | 3.30 | 2.00 |
| SDRI125-470M | 47 | 20% | 100KHz | 35 (1MHz) | 0.075 | 3.20 | 1.80 |
| SDRI125-560M | 56 | 20% | 100KHz | 35 (1MHz) | 0.110 | 2.80 | 1.70 |
| SDRI125-680M | 68 | 20% | 100KHz | 35 (1MHz) | 0.120 | 2.50 | 1.50 |
| SDRI125-820M | 82 | 20% | 100KHz | 35 (1MHz) | 0.140 | 2.30 | 1.40 |
| SDRI125-101M | 100 | 20% | 100KHz | 40 (0.796MHz) | 0.160 | 1.90 | 1.30 |
| SDRI125-121M | 120 | 20% | 100KHz | 40 (0.796MHz) | 0.170 | 1.80 | 1.10 |
| SDRI125-151M | 150 | 20% | 100KHz | 40 (0.796MHz) | 0.230 | 1.70 | 1.00 |
| SDRI125-181M | 180 | 20% | 100KHz | 40 (0.796MHz) | 0.290 | 1.60 | 0.90 |
| SDRI125-221M | 220 | 20% | 100KHz | 40 (0.796MHz) | 0.400 | 1.45 | 0.80 |
| SDRI125-271M | 270 | 20% | 100KHz | 40 (0.796MHz) | 0.460 | 1.20 | 0.75 |
| SDRI125-331M | 330 | 20% | 100KHz | 40 (0.796MHz) | 0.510 | 1.15 | 0.68 |
| SDRI125-391M | 390 | 20% | 100KHz | 40 (0.796MHz) | 0.690 | 1.10 | 0.65 |
| SDRI125-471M | 470 | 20% | 100KHz | 40 (0.796MHz) | 0.770 | 0.94 | 0.58 |
| SDRI125-561M | 560 | 20% | 100KHz | 40 (0.796MHz) | 0.860 | 0.90 | 0.54 |
| SDRI125-681M | 680 | 20% | 100KHz | 40 (0.796MHz) | 1.200 | 0.70 | 0.48 |
| SDRI125-821M | 820 | 20% | 100KHz | 40 (0.796MHz) | 1.340 | 0.55 | 0.40 |
| SDRI125-102M | 1000 | 20% | 100KHz | 40 (0.796MHz) | 1.530 | 0.44 | 0.35 |
| Part No. | External Dimensions (LWH) (mm) | Inductance Tolerance |
|---|---|---|
| SDRI125 Series | 12.312.36.0 | J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% |
Key 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.
Environmental Data:
- Operating Temperature: -40 to +125 (Including coils self-temperature rise)
Test Equipment:
- Inductance (L): HP4284A, HP4285A LCR meter or equivalent
- Saturation Current (Isat) & Temperature Rise Current (Irms): HP4284+42841A or equivalent
- Quality Factor (Q): HP4285A or equivalent
- DC Resistance (DCR): Chroma 16502 or equivalent
Packaging:
- Tape and Reel Specifications: Dimensions are in mm.
- Cover tape peel off condition: Cover tape peel force shall be 10 to 120g; Noodle strip peeling angle 165 to 180.
- Packing Quantity: Varies by Part No. (e.g., SDRI125: REEL 500 PCS, Inside Box 1000 PCS, Outside Carton 4000 PCS)
Recommended Reflow Soldering Curve:
The recommended reflow conditions are set according to soldering equipment. Users should adjust and confirm according to their specific environment/equipment.
Reminders for Using These Products:
- Storage: Within 12 months, under conditions of 5~40C and 35~65% RH.
- Environment: Avoid gas corrosive environments (salt, acid, alkali, etc.).
- Handling: Avoid direct contact with terminals due to hand oils; handle carefully to prevent damage from dropping.
- Soldering: Preheat components before soldering; ensure temperature difference between solder and chip does not exceed 150C.
- Thermal Design: Allow sufficient margin for self-heating when power is on.
- Magnetic Fields: Do not place near magnets or magnetic objects.
- Cleaning: Do not rinse coils; contact manufacturer if cleaning is necessary.
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