Shielded SMD Power Inductors LanTu Micro SDRH104R-470MT with Wide Inductance Range and Low DC Resistance
Shielded SMD Power Inductors - SDRH104R Series
Product Overview
The SDRH104R 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 design to minimize leakage flux, these inductors offer high saturation current and low DC resistance. Their high-accuracy dimensions ensure suitability for automatic mounting processes. Available in various package sizes and a wide inductance range, they are RoHS, Halogen Free, and REACH compliant. Ideal for power supplies in VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters.
Product Attributes
- Brand: LANTU MICRO ELECTRIC TECHNOLOGY
- Series: SDRH104R
- Type: Shielded SMD Power Inductors
- Certifications: RoHS, Halogen Free, REACH Compliance
- Origin: SHENZHEN, CHINA
Technical Specifications
Environmental Data:
- Operating Temperature: -40 to +125 (Including coil self-temperature rise)
Test Equipment:
- Inductance (L): HP4284A, HP4285A LCR meter or equivalent
- Saturation Current (Isat) & Temperature Rise Current (Irms): HP4284+42841A or equivalent
- DC Resistance (DCR): Chroma 16502 or equivalent
Product Identification:
Format: SDRH 104R [Inductance] [Tolerance] [Packing]
- Type: SDRH (Shielded SMD Power Inductors)
- Outer Dimensions (LWH): 10.310.34.0 mm
- Inductance Tolerance: J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30%
- Packing: T (Tape & Reel), B (Bulk Package)
Electrical Characteristics:
| Part No. | Inductance (H) | Tolerance | Test Freq. | DCR () Max @0A | Saturation Current (A) Max | Temperature Rise Current (A) Max |
|---|---|---|---|---|---|---|
| SDRH104R-1R5N | 1.5 | 30% | 100KHz | 0.008 | 12.50 | 8.50 |
| SDRH104R-2R2N | 2.2 | 30% | 100KHz | 0.011 | 9.90 | 7.70 |
| SDRH104R-3R3N | 3.3 | 30% | 100KHz | 0.014 | 8.80 | 7.40 |
| SDRH104R-3R8N | 3.8 | 30% | 100KHz | 0.018 | 8.80 | 7.40 |
| SDRH104R-4R7N | 4.7 | 30% | 100KHz | 0.022 | 7.00 | 6.00 |
| SDRH104R-5R2N | 5.2 | 30% | 100KHz | 0.022 | 7.00 | 6.00 |
| SDRH104R-6R8N | 6.8 | 30% | 100KHz | 0.027 | 6.60 | 5.30 |
| SDRH104R-8R2N | 8.2 | 30% | 100KHz | 0.030 | 6.00 | 4.80 |
| SDRH104R-100N | 10 | 30% | 100KHz | 0.035 | 5.60 | 4.50 |
| SDRH104R-150N | 15 | 30% | 100KHz | 0.050 | 4.40 | 3.70 |
| SDRH104R-220M | 22 | 20% | 100KHz | 0.073 | 3.60 | 2.80 |
| SDRH104R-330M | 33 | 20% | 100KHz | 0.093 | 2.90 | 2.60 |
| SDRH104R-470M | 47 | 20% | 100KHz | 0.128 | 2.44 | 2.30 |
| SDRH104R-560M | 56 | 20% | 100KHz | 0.185 | 2.18 | 1.75 |
| SDRH104R-680M | 68 | 20% | 100KHz | 0.213 | 2.08 | 1.68 |
| SDRH104R-820M | 82 | 20% | 100KHz | 0.275 | 1.88 | 1.48 |
| SDRH104R-101M | 100 | 20% | 100KHz | 0.304 | 1.66 | 1.42 |
| SDRH104R-151M | 150 | 20% | 100KHz | 0.506 | 1.40 | 1.15 |
| SDRH104R-221M | 220 | 20% | 100KHz | 0.756 | 1.19 | 0.88 |
| SDRH104R-331M | 330 | 20% | 100KHz | 1.090 | 0.92 | 0.66 |
| SDRH104R-471M | 470 | 20% | 100KHz | 1.476 | 0.65 | 0.59 |
| SDRH104R-681M | 680 | 20% | 100KHz | 2.100 | 0.54 | 0.50 |
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.
Note: 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.
Shape and Dimensions (mm):
| ITEM | A | B | C | D | E | F | H | I | J |
|---|---|---|---|---|---|---|---|---|---|
| SDRH104R | 10.3 Max | 10.5 Max | 4.0 Max | 7.7 | 3.0 | 1.2 | 3.6 | 1.7 | 7.3 |
Recommended Land Pattern: (Refer to diagram in source document)
Packaging:
Tape and Reel Specifications: (Dimensions are in mm)
| Part No. | Tape Dimension W (mm) | P (mm) | W1 (mm) | Reel Dimensions A (mm) | B (mm) | C (mm) | D (mm) | REEL (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|---|---|---|---|---|
| SDRH104R | 24 | 16 | 11.5 | 24.4 | 60 | 13 | 330 | 1000 | 2000 | 8000 |
Cover tape peel off condition:
- Cover tape peel force: 10 to 120g
- Noodle strip peeling angle: 165 to 180
Reliability Testing: (Summary - Refer to source document for detailed methods and requirements)
- Terminal Strength (SMT & DIP)
- Resistance to Flexure
- Dropping Test
- Solderability
- Vibration Test
- Thermal Shock
- Low Temperature Storage
- High Temperature Storage
- Damp Heat (Steady States)
- Heat endurance of Reflow soldering
- Resistance to solvent test
- Overload test
- Voltage resistance test
Recommended Reflow Soldering Curve: (Refer to diagram in source document for specific 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 Period: Within 12 months under conditions (5~40C, 35~65% RH).
- Avoid use/storage in corrosive gas environments (salt, acid, alkali).
- Do not touch electrodes directly with bare hands to maintain solderability.
- Handle products carefully to prevent damage from dropping.
- Do not bend terminals excessively to avoid wire fracture.
- Do not rinse coils without consulting the manufacturer.
- 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 avoid short circuits, performance degradation, or reduced lifespan.
- Allow for sufficient thermal design margin due to self-heating when power is ON.
- For non-magnetic shielded types, careful PCB layout is required to prevent malfunction due to magnetic interference.
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