Shielded SMD Power Inductors LanTu Micro SDRI129-101MT with Low DC Resistance and 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 DC resistance, 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
- Series: SDRI129
- Type: Shielded SMD Power Inductors
- Certifications: RoHS, Halogen Free, REACH Compliance
- Magnetic Circuit: Closed magnetic circuit design
- Mounting: Suitable for automatic mounting
- Origin: SHENZHEN, CHINA
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 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-1R8N | 1.8 | 30% | 100KHz | 0.0075 | 13.40 | 11.00 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-2R2N | 2.2 | 30% | 100KHz | 0.0090 | 12.20 | 10.30 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-3R3N | 3.3 | 30% | 100KHz | 0.010 | 12.00 | 9.00 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-4R7N | 4.7 | 30% | 100KHz | 0.012 | 10.08 | 8.50 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-5R6N | 5.6 | 30% | 100KHz | 0.014 | 9.50 | 8.00 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-6R8N | 6.8 | 30% | 100KHz | 0.015 | 8.56 | 7.90 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-8R2N | 8.2 | 30% | 100KHz | 0.017 | 8.48 | 7.30 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-100M | 10 | 20% | 1KHz | 0.018 | 7.12 | 6.95 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-120M | 12 | 20% | 1KHz | 0.022 | 7.04 | 6.20 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-150M | 15 | 20% | 1KHz | 0.032 | 5.84 | 5.22 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-180M | 18 | 20% | 1KHz | 0.035 | 5.50 | 5.10 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-220M | 22 | 20% | 1KHz | 0.038 | 5.12 | 4.95 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-270M | 27 | 20% | 1KHz | 0.040 | 5.00 | 4.20 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-330M | 33 | 20% | 1KHz | 0.052 | 4.25 | 3.60 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-390M | 39 | 20% | 1KHz | 0.066 | 4.20 | 3.50 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-470M | 47 | 20% | 1KHz | 0.072 | 3.60 | 3.45 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-560M | 56 | 20% | 1KHz | 0.090 | 2.85 | 2.95 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-680M | 68 | 20% | 1KHz | 0.102 | 2.76 | 2.85 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-820M | 82 | 20% | 1KHz | 0.112 | 2.62 | 2.60 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-101M | 100 | 20% | 1KHz | 0.126 | 2.31 | 2.45 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-121M | 120 | 20% | 1KHz | 0.154 | 2.05 | 2.20 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-151M | 150 | 20% | 1KHz | 0.174 | 1.80 | 1.90 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-181M | 180 | 20% | 1KHz | 0.191 | 1.66 | 1.86 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-221M | 220 | 20% | 1KHz | 0.246 | 1.64 | 1.72 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-271M | 270 | 20% | 1KHz | 0.330 | 1.35 | 1.50 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-331M | 330 | 20% | 1KHz | 0.386 | 1.28 | 1.28 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-391M | 390 | 20% | 1KHz | 0.440 | 1.20 | 1.27 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-471M | 470 | 20% | 1KHz | 0.471 | 1.06 | 1.25 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-561M | 560 | 20% | 1KHz | 0.650 | 1.01 | 0.98 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-681M | 680 | 20% | 1KHz | 0.730 | 0.83 | 0.96 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-821M | 820 | 20% | 1KHz | 0.824 | 0.81 | 0.94 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-102M | 1000 | 20% | 1KHz | 1.220 | 0.70 | 0.78 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-122M | 1200 | 20% | 1KHz | 1.330 | 0.64 | 0.79 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-152M | 1500 | 20% | 1KHz | 1.990 | 0.56 | 0.58 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-182M | 1800 | 20% | 1KHz | 2.180 | 0.48 | 0.54 | 12.5 Max 12.5 Max 10.0 Max |
| SDRI129-222M | 2200 | 20% | 1KHz | 2.580 | 0.43 | 0.52 | 12.5 Max 12.5 Max 10.0 Max |
Environmental Data:
- Operating Temperature: -40 to +125 (Including coils self-temperature rise)
Test Equipment:
- Inductance: HP4284A, 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: SDRI 129 [Inductance Value] [Tolerance] [Packing]
- Packing: T = Tape & Reel, B = Bulk Package
- Inductance Tolerance: J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30%
- External Dimensions: 129 indicates 12.512.510.0 mm
Packaging Information:
| Part No. | Tape Dimension (mm) W | Tape Dimension (mm) P | Tape Dimension (mm) H | Reel Dimensions (mm) A | Reel Dimensions (mm) B | Reel Dimensions (mm) C | Reel Dimensions (mm) D | REEL (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|---|---|---|---|---|
| SDRI129 | 24 | 16 | 11.5 | 24.4 | 330 | 400 | 800 | 3200 |
Cover tape peel off condition:
- Cover tape peel force: 10 to 120g
- 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 terminal area; Solder paste thickness: 0.12mm. |
| Terminal Strength (DIP) | Meet requirements without any loose terminal. | Pulling test based on terminal diameter (0.35mm to >1.25mm) with specified forces (5N to 40N) for 10 sec. |
| Resistance to Flexure | No visible mechanical damage. | Flexure: 2mm, Speed: 0.5mm/sec, Keep time: 30 sec. |
| Dropping | No case deformation or change in appearance; No short and no open. | Drop packaged products from 1m high, 1 angle, 3 ridges, 6 surfaces, twice each. |
| Solderability | Wetting shall exceed 75% coverage; Terminals must have 95% minimum solder coverage. | Solder temperature: 2402, Duration: 3 sec, Solder: Sn/3.0Ag/0.5Cu, Flux: 25% Resin and 75% ethanol. |
| Vibration | No visible mechanical damage; Inductance change: Within 10%; Q factor change: Within 20%. | Frequency: 10 to 55 Hz (and return), Amplitude: 1.5mm, Duration: 2 hours in 3 mutually perpendicular directions. |
| Thermal Shock | No visible mechanical damage; Inductance change: Within 10% (Mn-Zn: Within 30%); Q factor change: Within 20%. | 100 cycles of temperature shock between -55~40 and 85~125. Transforming interval: Max. 20 sec. |
| 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. |
| 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. |
| 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. |
| Heat endurance of Reflow soldering | No significant defects in appearance; L/L10% (Mn-Zn: L/L30%); Q/Q30% (SMD series only); DCR/DCR10%. | Peak temperature: 260+0/-5, twice reflow. |
| Resistance to solvent test | No case deformation or change in appearance or obliteration of marking. | Dip in IPA solvent for 50.5Min, dry for 5Min, brush 10 times. |
| Overload test | During the test no smoke, no peculiar smell, no fire; The characteristic is normal after test. | Apply twice rated current for 5 minutes. |
| Voltage resistance test | During the test no breakdown; The characteristic is normal after test. | DC1000V, Current: 1mA, Time: 1Min. (For parts with two coils) |
Recommended reflow soldering curve:
The recommended reflow conditions are set according to soldering equipment. Users should adjust and confirm according to their environment/equipment.
Reminders for Using These Products:
- Storage period: within 12 months. Storage conditions: temperature 5~40C, humidity 35~65% RH or less.
- Do not use or store in environments with gas corrosion (salt, acid, alkali, etc.).
- Avoid direct contact with terminals by bare hands due to oil secretions affecting solderability.
- 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 company 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. Overheating may cause short circuits, performance deterioration, or lifespan shortening.
- Allow sufficient margin for thermal design due to self-heating when power is on.
- For non-magnetic shield types, carefully lay out coils on the circuit board 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