Shielded SMD Power Inductors - SDRI125 Series
Product Overview
The SDRI125 Series Shielded SMD Power Inductors from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. are designed for high-performance power applications. Featuring a closed magnetic circuit for reduced leakage, high saturation current, and low DCR, these inductors offer high-precision dimensions suitable for automatic mounting. They are available in various package sizes and inductance ranges, complying with RoHS, Halogen Free, and REACH standards. Ideal for DC/DC converters and power supplies in VTRs, LCD televisions, notebook PCs, and portable communication equipment.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SDRI125
- 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
General Specifications:
| Item | Specification |
|---|---|
| Operating Temperature | -40 to +125 (Including coils self-temperature rise) |
| Test Equipment (Inductance) | HP4284A, HP4285A or equivalent LCR meter |
| Test Equipment (Current) | HP4284+42841A or equivalent |
| Test Equipment (Q Factor) | HP4285A or equivalent |
| Test Equipment (DCR) | Chroma 16502 or equivalent |
Product Identification:
| Component | Description |
|---|---|
| Type | SDRI (Shielded SMD Power Inductors) |
| Size | 125 (12.312.36.0 mm) |
| Inductance | e.g., 470 (47 H) |
| Inductance Tolerance | J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30% |
| Packing | B: Bulk Package, T: Tape & Reel |
Electrical Characteristics (SDRI125 Series):
| Part No. | Inductance (H) @ 0A | Tolerance | Test Freq. (Min) | 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 |
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.
- Note: Circuit design, component, PCB trace size and thickness, airflow, and other cooling provisions all affect part temperature. Part temperature should be verified in the end application.
Dimensions (mm):
| Part No. | A (Max) | B (Max) | C (Max) | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| SDRI125 | 12.5 | 12.5 | 6.0 | 5.0 | 7.6 | 2.9 | 7.0 | 5.4 |
Recommended Land Pattern (mm):
[Image of Recommended Land Pattern would be placed here if available]
Packaging Specifications:
| Item | Dimension (mm) | Quantity (PCS) |
|---|---|---|
| Tape Dimension W | 24 | REEL (500) |
| Tape Dimension P | 16 | Inside Box (1000) |
| Tape Dimension H | 11.5 | Outside Carton (4000) |
| Reel Dimension A | 24.4 | |
| Reel Dimension B | 100 | |
| Reel Dimension C | 13 | |
| Reel Dimension D | 330 |
Cover tape peel off condition:
- Cover tape peel force: 10 to 120g
- Noodle strip peeling angle: 165 to 180
Recommended Reflow Soldering Curve:
[Image of Recommended Reflow Soldering Curve would be placed here if available]
Note: The recommended reflow conditions are set according to our soldering equipment. Users should adjust and confirm according to their specific environment/equipment.
Reminders for Using These Products:
- Storage: Within 12 months. Conditions: temperature 5~40C, humidity 35~65% RH or less. Soldering of terminal electrodes may deteriorate if storage period elapses.
- Environment: Do not use or store in locations with gas corrosion (salt, acid, alkali, etc.).
- Handling: Avoid direct contact with terminals by bare hands as oil secretions may inhibit soldering. Handle products carefully to prevent damage from dropping or inappropriate removal.
- Terminal Bending: Do not bend terminals with excessive stress to avoid wire fracture.
- Cleaning: Do not rinse coils by yourself. Contact SXN 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 Correction: Post-mounting soldering corrections must be within specified conditions. Overheating may cause short circuits, performance degradation, or reduced lifespan.
- Self-Heating: Allow sufficient margin for thermal design due to self-heating when power is ON.
- Non-Magnetic Shield Type: Carefully lay out the coil for PCB design to prevent malfunctions due to magnetic interference.
2410121442_LanTu-Micro-SDRI125-681MT_C7602859.pdf
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