LanTu Micro SDRI74-330MT Shielded SMD Power Inductors Providing Operation from Minus 55 to 125 Degrees
Shielded SMD Power Inductors - SDRI74 Series
Product Overview
The SDRI74 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 DCR. Their high-precision dimensions ensure compatibility with automatic mounting processes. Available in various package sizes and a wide inductance range, they are RoHS, Halogen Free, and REACH compliant, making them suitable for demanding applications in VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters.
Product Attributes
- Brand: LANTU MICRO
- Origin: SHENZHEN, CHINA
- Series: SDRI74
- Certifications: RoHS, Halogen Free, REACH Compliance
- Magnetic Circuit: Closed Magnetic Circuit
- Mounting Type: SMD (Surface Mount Device)
- Packaging Options: Bulk Package (B), Tape & Reel (T)
Technical Specifications
General Characteristics:
| Attribute | Value |
|---|---|
| Operating Temperature | -55 to +125 (Including coil 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 Code:
| Position | Description |
|---|---|
| Type (SDRI) | |
| Series (74) | |
| Inductance Value (e.g., 470 for 47 uH) | |
| Inductance Tolerance (J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30%) | |
| Packing (T: Tape & Reel, B: Bulk Package) |
External Dimensions (LWH): 7.57.54.5 mm
Electrical Characteristics:
| Part No. | Inductance (H) | Tolerance | Test Freq (L @0A) | Q Factor Min (@ Test Freq) | DCR () Max | Saturation Current (A) Max | Temperature Rise Current (A) Max |
|---|---|---|---|---|---|---|---|
| SDRI74-2R2N | 2.2 | 30% | 100KHz | 30 (1MHz) | 0.0147 | 5.20 | 5.00 |
| SDRI74-3R3N | 3.3 | 30% | 100KHz | 30 (1MHz) | 0.0214 | 4.60 | 4.00 |
| SDRI74-4R7N | 4.7 | 30% | 100KHz | 30 (1MHz) | 0.0310 | 3.80 | 3.40 |
| SDRI74-6R8N | 6.8 | 30% | 100KHz | 30 (1MHz) | 0.035 | 3.20 | 2.30 |
| SDRI74-8R2N | 8.2 | 30% | 100KHz | 30 (1MHz) | 0.042 | 3.00 | 2.10 |
| SDRI74-100N | 10 | 30% | 100KHz | 35 (1MHz) | 0.049 | 2.95 | 1.84 |
| SDRI74-120M | 12 | 20% | 100KHz | 35 (1MHz) | 0.058 | 2.85 | 1.71 |
| SDRI74-150M | 15 | 20% | 100KHz | 35 (1MHz) | 0.081 | 2.80 | 1.47 |
| SDRI74-180M | 18 | 20% | 100KHz | 35 (1MHz) | 0.091 | 2.50 | 1.31 |
| SDRI74-220M | 22 | 20% | 100KHz | 35 (1MHz) | 0.110 | 2.10 | 1.23 |
| SDRI74-270M | 27 | 20% | 100KHz | 35 (1MHz) | 0.150 | 1.90 | 1.12 |
| SDRI74-330M | 33 | 20% | 100KHz | 35 (1MHz) | 0.170 | 1.80 | 0.96 |
| SDRI74-390M | 39 | 20% | 100KHz | 35 (1MHz) | 0.230 | 1.70 | 0.91 |
| SDRI74-470M | 47 | 20% | 100KHz | 35 (1MHz) | 0.260 | 1.50 | 0.88 |
| SDRI74-560M | 56 | 20% | 100KHz | 35 (1MHz) | 0.350 | 1.32 | 0.75 |
| SDRI74-680M | 68 | 20% | 100KHz | 35 (1MHz) | 0.380 | 1.08 | 0.69 |
| SDRI74-820M | 82 | 20% | 100KHz | 35 (1MHz) | 0.430 | 1.05 | 0.61 |
| SDRI74-101M | 100 | 20% | 100KHz | 40 (0.796MHz) | 0.610 | 1.02 | 0.60 |
| SDRI74-121M | 120 | 20% | 100KHz | 40 (0.796MHz) | 0.660 | 0.98 | 0.52 |
| SDRI74-151M | 150 | 20% | 100KHz | 40 (0.796MHz) | 0.880 | 0.95 | 0.46 |
| SDRI74-181M | 180 | 20% | 100KHz | 40 (0.796MHz) | 0.980 | 0.74 | 0.42 |
| SDRI74-221M | 220 | 20% | 100KHz | 40 (0.796MHz) | 1.170 | 0.70 | 0.36 |
| SDRI74-271M | 270 | 20% | 100KHz | 40 (0.796MHz) | 1.640 | 0.57 | 0.34 |
| SDRI74-331M | 330 | 20% | 100KHz | 40 (0.796MHz) | 1.860 | 0.56 | 0.32 |
| SDRI74-391M | 390 | 20% | 100KHz | 40 (0.796MHz) | 2.850 | 0.45 | 0.29 |
| SDRI74-471M | 470 | 20% | 100KHz | 40 (0.796MHz) | 3.010 | 0.45 | 0.26 |
| SDRI74-561M | 560 | 20% | 100KHz | 40 (0.796MHz) | 3.620 | 0.43 | 0.23 |
| SDRI74-681M | 680 | 20% | 100KHz | 40 (0.796MHz) | 4.630 | 0.37 | 0.22 |
| SDRI74-821M | 820 | 20% | 100KHz | 40 (0.796MHz) | 5.200 | 0.35 | 0.20 |
| SDRI74-102M | 1000 | 20% | 100KHz | 40 (0.796MHz) | 6.000 | 0.33 | 0.18 |
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 between Isat and Irms.
- Special Remind: Circuit design, component, PCB trace size and thickness, airflow and other cooling provisions all affect the part temperature. Part temperature should be verified in the end application.
Packaging Specifications:
| Part No. | Tape Dimension (W x P x H) (mm) | Reel Dimensions (A x B x C x D) (mm) | Reel Quantity (PCS) | Inside Box Quantity (PCS) | Outside Carton Quantity (PCS) |
|---|---|---|---|---|---|
| SDRI74 | 16 x 12 x 11.5 | 16.5 x 100 x 13 x 330 | 1000 | 3000 | 12,000 |
Cover Tape Peel Off Condition:
a) Cover tape peel force shall be 10 to 120g.
b) 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 equipment and process conditions.)
Reminders for Using These Products:
- Storage period is within 12 months under conditions (temperature: 5~40C, humidity: 35 to 65% RH or less).
- Do not use or store in locations with gas corrosion (salt, acid, alkali, etc.).
- Avoid direct contact with terminals by bare hands due to oil secretions which may inhibit soldering.
- Handle products carefully to prevent damage from dropping or inappropriate removal.
- Do not bend terminals with excessive stress to avoid wire fracture.
- Do not rinse coils; contact the manufacturer if cleaning is necessary.
- Do not expose products to 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 overheating, short circuits, performance deterioration, or lifespan shortening.
- Allow sufficient thermal design margin for self-heating when power is ON.
- For non-magnetic shield types, careful coil layout is required on the circuit board to prevent malfunctions due to magnetic interference.
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