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 design to minimize leakage, these inductors offer high-precision dimensions suitable for automatic mounting. They are available in various package sizes and a wide inductance range, complying 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
- Magnetic Circuit Design: Closed magnetic circuit
- Certifications: RoHS, Halogen Free, REACH Compliance
- 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 |
| External Dimensions (LWH) (mm): 12.312.36.0 | |||||||
| Inductance Tolerance Options: J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% | |||||||
| Operating Temperature: -40 to +125 (Including coils self-temperature rise) | |||||||
| Saturation Current Definition: DC current at which inductance drops 30% from its value without current. | |||||||
| Temperature Rise Current Definition: 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. | |||||||
Packaging Specifications
| 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 Quantity (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|---|---|---|---|---|
| SDRI125 | 24 | 16 | 11.5 | 24.4 | 100 | 13 | 330 | 500 | 1000 | 4000 |
Usage Reminders
- Storage Period: Within 12 months. Storage conditions: temperature 5~40C, humidity 35~65% RH or less.
- Environment: Do not use or store in locations with gas corrosion (salt, acid, alkali, etc.).
- Handling: Avoid direct contact with terminals using bare hands due to oil secretions affecting 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: Preheat components before soldering. The temperature difference between solder and chip temperature should not exceed 150C.
- Soldering Corrections: Post-mounting soldering corrections must be within specified conditions. Overheating may cause short circuits, performance degradation, or reduced lifespan.
- Thermal Design: Allow sufficient margin for thermal design due to self-heating when power is applied.
- Layout (Non-Shielded Type): Carefully lay out coils on the PCB for non-magnetic shielded types to prevent malfunctions due to magnetic interference.
2410121442_LanTu-Micro-SDRI125-470MT_C7602853.pdf
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