High Accuracy Dimensions LanTu Micro SDRI129-150MT Shielded SMD Power Inductors for Automatic Mounting
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Product Description
Product Overview
The SDRI129 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 for reduced leakage, high saturation current, and low DCR, these inductors offer high accuracy 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 use in VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters.
Product Attributes
- Brand: LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SDRI129 Series
- Type: Shielded SMD Power Inductors
- Certifications: RoHS, Halogen Free, REACH Compliance
- Magnetic Circuit Design: Closed magnetic circuit
- Mounting: Suitable for automatic mounting
Technical Specifications
| Part No. | Inductance (H) | Tolerance | Test Frequency | DCR () Max @ 0A | Saturation Current (A) Max | Temperature Rise Current (A) Max | Dimensions (LWH) (mm) |
|---|---|---|---|---|---|---|---|
| SDRI129-1R0N | 1.0 | 30% | 100KHz | 0.0060 | 19.90 | 11.60 | 12.512.510.0 |
| SDRI129-1R8N | 1.8 | 30% | 100KHz | 0.0075 | 13.40 | 11.00 | 12.512.510.0 |
| SDRI129-2R2N | 2.2 | 30% | 100KHz | 0.0090 | 12.20 | 10.30 | 12.512.510.0 |
| SDRI129-3R3N | 3.3 | 30% | 100KHz | 0.010 | 12.00 | 9.00 | 12.512.510.0 |
| SDRI129-4R7N | 4.7 | 30% | 100KHz | 0.012 | 10.08 | 8.50 | 12.512.510.0 |
| SDRI129-5R6N | 5.6 | 30% | 100KHz | 0.014 | 9.50 | 8.00 | 12.512.510.0 |
| SDRI129-6R8N | 6.8 | 30% | 100KHz | 0.015 | 8.56 | 7.90 | 12.512.510.0 |
| SDRI129-8R2N | 8.2 | 30% | 100KHz | 0.017 | 8.48 | 7.30 | 12.512.510.0 |
| SDRI129-100M | 10 | 20% | 1KHz | 0.018 | 7.12 | 6.95 | 12.512.510.0 |
| SDRI129-120M | 12 | 20% | 1KHz | 0.022 | 7.04 | 6.20 | 12.512.510.0 |
| SDRI129-150M | 15 | 20% | 1KHz | 0.032 | 5.84 | 5.22 | 12.512.510.0 |
| SDRI129-180M | 18 | 20% | 1KHz | 0.035 | 5.50 | 5.10 | 12.512.510.0 |
| SDRI129-220M | 22 | 20% | 1KHz | 0.038 | 5.12 | 4.95 | 12.512.510.0 |
| SDRI129-270M | 27 | 20% | 1KHz | 0.040 | 5.00 | 4.20 | 12.512.510.0 |
| SDRI129-330M | 33 | 20% | 1KHz | 0.052 | 4.25 | 3.60 | 12.512.510.0 |
| SDRI129-390M | 39 | 20% | 1KHz | 0.066 | 4.20 | 3.50 | 12.512.510.0 |
| SDRI129-470M | 47 | 20% | 1KHz | 0.072 | 3.60 | 3.45 | 12.512.510.0 |
| SDRI129-560M | 56 | 20% | 1KHz | 0.090 | 2.85 | 2.95 | 12.512.510.0 |
| SDRI129-680M | 68 | 20% | 1KHz | 0.102 | 2.76 | 2.85 | 12.512.510.0 |
| SDRI129-820M | 82 | 20% | 1KHz | 0.112 | 2.62 | 2.60 | 12.512.510.0 |
| SDRI129-101M | 100 | 20% | 1KHz | 0.126 | 2.31 | 2.45 | 12.512.510.0 |
| SDRI129-121M | 120 | 20% | 1KHz | 0.154 | 2.05 | 2.20 | 12.512.510.0 |
| SDRI129-151M | 150 | 20% | 1KHz | 0.174 | 1.80 | 1.90 | 12.512.510.0 |
| SDRI129-181M | 180 | 20% | 1KHz | 0.191 | 1.66 | 1.86 | 12.512.510.0 |
| SDRI129-221M | 220 | 20% | 1KHz | 0.246 | 1.64 | 1.72 | 12.512.510.0 |
| SDRI129-271M | 270 | 20% | 1KHz | 0.330 | 1.35 | 1.50 | 12.512.510.0 |
| SDRI129-331M | 330 | 20% | 1KHz | 0.386 | 1.28 | 1.28 | 12.512.510.0 |
| SDRI129-391M | 390 | 20% | 1KHz | 0.440 | 1.20 | 1.27 | 12.512.510.0 |
| SDRI129-471M | 470 | 20% | 1KHz | 0.471 | 1.06 | 1.25 | 12.512.510.0 |
| SDRI129-561M | 560 | 20% | 1KHz | 0.650 | 1.01 | 0.98 | 12.512.510.0 |
| SDRI129-681M | 680 | 20% | 1KHz | 0.730 | 0.83 | 0.96 | 12.512.510.0 |
| SDRI129-821M | 820 | 20% | 1KHz | 0.824 | 0.81 | 0.94 | 12.512.510.0 |
| SDRI129-102M | 1000 | 20% | 1KHz | 1.220 | 0.70 | 0.78 | 12.512.510.0 |
| SDRI129-122M | 1200 | 20% | 1KHz | 1.330 | 0.64 | 0.79 | 12.512.510.0 |
| SDRI129-152M | 1500 | 20% | 1KHz | 1.990 | 0.56 | 0.58 | 12.512.510.0 |
| SDRI129-182M | 1800 | 20% | 1KHz | 2.180 | 0.48 | 0.54 | 12.512.510.0 |
| SDRI129-222M | 2200 | 20% | 1KHz | 2.580 | 0.43 | 0.52 | 12.512.510.0 |
| Environmental Data: Operating Temperature: -40 to +125 (Including coils self-temperature rise) | |||||||
| Test Equipment: Inductance (L): HP4284A or HP4285A LCR meter or equivalent Saturation Current (Isat) & Temperature Rise Current (Irms): HP4284A+42841A or equivalent DC Resistance (DCR): Chroma 16502 or equivalent | |||||||
| Product Identification Example: SDRI 129 220 M T Type: SDRI Series: 129 Inductance: 220 (22 H) Inductance Tolerance: M (20%) Packing: T (Tape & Reel) | |||||||
Packaging
| Part No. | Tape Width (mm) | Pocket Pitch (mm) | Pocket Depth (mm) | Reel Diameter (mm) | Reel Quantity (PCS) | Inside Box Quantity (PCS) | Outside Carton Quantity (PCS) |
|---|---|---|---|---|---|---|---|
| SDRI129 | 24 | 16 | 11.5 | 330 | 400 | 800 | 3200 |
Cover tape peel off condition:
a) Cover tape peel force: 10 to 120g
b) Noodle strip peeling angle: 165 to 180
Reliability Testing
| Item | Requirements | Test Methods and Remarks |
|---|---|---|
| Terminal Strength (SMT) | Meet requirements without any loose terminal. | Pulling test based on sectional area of terminal (e.g., 5N for A8mm, 10N for 8mm |
| Terminal Strength (DIP) | Meet requirements without any loose terminal. | Pulling test based on terminal diameter (e.g., 5N for 0.35d0.50mm, 10N for 0.50d0.80mm, 20N for 0.80d1.25mm, 40N for D1.25mm), duration 10 sec. Speed: 1.0mm/s. |
| Resistance to Flexure | No visible mechanical damage. | Solder to test jig, apply force in specified direction, flexure 2mm, speed 0.5mm/sec, keep time 30 sec. |
| Dropping Test | No case deformation or change in appearance. No short and no open. | Drop packaged products from 1m high in 1 angle, 3 ridges and 6 surfaces, twice in each direction. |
| Solderability | Wetting shall exceed 75% coverage. Terminals must have 95% minimum solder coverage. No visible mechanical damage. | Solder temperature: 2402, duration: 3 sec. Solder: Sn/3.0Ag/0.5Cu. Flux: 25% Resin and 75% ethanol. |
| Vibration Test | No visible mechanical damage. Inductance change: Within 10%. Q factor change: Within 20%. | Solder to jig, subject to harmonic motion (amplitude 1.5mm, frequency 10-55 Hz and return) for 2 hours in 3 mutually perpendicular directions (total 6 hours). |
| Thermal Shock | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: Within 30%). Q factor change: Within 20%. | 100 cycles of temperature change from (85~125) to (-55~40). Transforming interval: Max. 20 sec. Stabilize at normal condition for 1-2 hours after testing. |
| Low Temperature Storage | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: Within 30%). Q factor change: Within 20%. | Temperature: -55~-402, duration: 962 hours. Stabilize at normal condition for 1-2 hours before measuring. |
| High Temperature Storage | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: Within 30%). Q factor change: Within 20%. | Temperature: 125~852, duration: 962 hours. Stabilize at normal condition for 1-2 hours before measuring. |
| Damp Heat (Steady States) | No visible mechanical damage. Inductance change: Within 10% (Mn-Zn: Within 30%). Q factor change: Within 20%. | Temperature: 602, Humidity: 90% to 95% RH, duration: 962 hours. Stabilize at normal condition for 1-2 hours before measuring. |
| Heat endurance of Reflow soldering | No significant defects in appearance. L/L10% (Mn-Zn: L/L30%). Q/Q30% (SMD series only). DCR/DCR10%. | Refer to reflow curve, undergo reflow twice. Peak temperature: 260+0/-5. |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking. | Dip parts into IPA solvent for 50.5 min, dry for 5 min, then brush 10 times. |
| Overload test | During the test no smoke, no peculiar smell, no fire. The characteristic is normal after test. | Apply twice the rated current for 5 minutes. Repeat twice. |
| Voltage resistance test | During the test no breakdown. The characteristic is normal after test. | For parts with two coils: DC1000V, Current: 1mA, Time: 1Min. |
Recommended Reflow Soldering Curve
The recommended reflow conditions are set according to soldering equipment standards. Users should adjust and confirm conditions based on their specific environment and equipment.
Reminders for Using These Products
- Storage: Within 12 months. Conditions: temperature 5~40C, humidity 35~65% RH or less. Terminal solderability may deteriorate beyond this period.
- Environment: Do not use or store in gas corrosive environments (salt, acid, alkali, etc.).
- Handling: Avoid direct contact with terminals by bare hands due to oil secretions affecting solderability. 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 yourself; 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 should not exceed 150C.
- Soldering Corrections: Post-mounting soldering corrections should 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 on.
- Non-Magnetic Shield Type: Carefully lay out coils on the PCB to prevent malfunctions due to magnetic interference.
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Company
Beijing Silk Road Enterprise Management Services Co., Ltd.
Location
16 Floor, Unit B, Jiatai International Mansion, No 41, Dongsihuan Zhong Road, Chaoyang District, Beijing
Contact Person
Sellina