molding SMD power inductor LanTu Micro SMS0518 3R3M with low parasitic capacitance and low impedance
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Product Description
Molding SMD Power Inductors - SMS0518 Series
Product Overview
The SMS0518 Series from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. offers ultra-high current SMD power inductors with a thin design, low DC resistance, and magnetic shielding for strong anti-electromagnetic interference. These inductors are built with an integral construction for high reliability and vibration resistance, featuring composite construction for ultra-low buzz noise and die-casting with low-loss alloy powder for low impedance and small parasitic capacitance. They provide high efficiency with low winding DC resistance and core eddy-current loss, operating at frequencies up to 3MHz and rated for a maximum voltage of 30VDC. The series is RoHS, Halogen Free, and REACH compliant. Ideal for PDA, notebook, desktop, server applications, high current POL converters, battery-powered devices, and DC/DC converters in distributed power systems.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Product Type: Molding SMD Power Inductor
- Series: SMS0518
- Certifications: RoHS, Halogen Free, REACH Compliance
Technical Specifications
| Item | Specification | Details | ||||
|---|---|---|---|---|---|---|
| General Features | Design | Thin, Low RDC, Ultra-high current, Magnetic shielding | ||||
| Construction | Integral construction, Composite construction | |||||
| Electrical Characteristics | Frequency | Up to 3MHz | ||||
| Maximum Voltage | 30VDC | |||||
| Operating Temperature | -55 to +125 (Including coils self-temperature rise) | |||||
| Model Identification | Type | SMS | ||||
| Series | 0518 | |||||
| Dimensions | External Dimensions (LWH) | 0518: 5.55.21.8 mm | ||||
| Dimensions (mm) | A: 5.500.30, B: 5.200.20, C: 1.80Max, D: 2.30 Typ, E: 1.20 Typ, F: 3.00, G: 7.00, H: 2.50 | |||||
| Recommended Land Pattern | Refer to page 2 | |||||
| Specifications Table | Part No. | Inductance (L) @ 100KHz, 1.0V (H) | Tolerance | DCR (m) Typical | Saturation Current (Isat) Typical (A) | Heat Rating Current (Irms) Typical (A) |
| SMS0518-R33M | 0.33 | 20% | 6.0 | 17.0 | 12.0 | |
| SMS0518-R47M | 0.47 | 20% | 7.7 | 15.5 | 10.5 | |
| SMS0518-R56M | 0.56 | 20% | 8.0 | 15.0 | 9.5 | |
| SMS0518-R68M | 0.68 | 20% | 10.0 | 12.0 | 9.0 | |
| SMS0518-1R0M | 1.00 | 20% | 15.0 | 9.0 | 8.0 | |
| SMS0518-1R5M | 1.50 | 20% | 21.0 | 9.0 | 7.5 | |
| SMS0518-2R2M | 2.20 | 20% | 30.0 | 6.5 | 5.0 | |
| SMS0518-3R3M | 3.30 | 20% | 52.0 | 5.0 | 4.5 | |
| SMS0518-4R7M | 4.70 | 20% | 78.0 | 4.0 | 3.5 | |
| SMS0518-6R8M | 6.80 | 20% | 107.0 | 3.4 | 2.8 | |
| SMS0518-100M | 10.00 | 20% | 140.0 | 3.0 | 2.5 | |
| SMS0518-150M | 15.00 | 20% | 240.0 | 2.2 | 1.8 | |
| Inductance Tolerance Codes | J, K, L, M, P, N | 5%, 10%, 15%, 20%, 25%, 30% | N/A | N/A | N/A | |
| Packaging | Type | Bulk Package (B), Tape & Reel (T) | N/A | N/A | N/A | |
| Tape and Reel Specs | Tape Dimension (W, P, W1) | 12.0, 8.0, 5.5 mm | Reel Dimensions (A, B, C, D) | 12.4, 100, 13, 330 mm | Reel Quantity | 2000 PCS |
| Test Equipment | Inductance (L) | WK3260B LCR meter or equivalent | ||||
| Saturation Current (Isat) & Heat Rating Current (Irms) | WK3260B+WK3265B or equivalent | |||||
| DC Resistance (DCR) | Chroma 16502 or equivalent |
Reliability Testing
| Test Item | Requirements | Test Method |
|---|---|---|
| Terminal Strength | No loose terminal | Pulling test (Force varies by terminal area) |
| Resistance to Flexure | No visible mechanical damage | Flexure: 2mm, Speed: 0.5mm/sec, Keep time: 30 sec |
| Dropping | No case deformation, no short/open | Drop from 1m height, 3 angles, 6 surfaces, twice each |
| Solderability | Terminals must have 95% minimum solder coverage | Solder temp: 2402, Duration: 3 sec |
| Vibration | Inductance change: 10%, Q factor change: 20% | Amplitude: 1.5mm, Frequency: 10-55 Hz, Duration: 2 hours per direction (3 directions) |
| Thermal Shock | Inductance change: 10% (Mn-Zn: 30%), Q factor change: 20% | 100 cycles (-55~40 to 85~125), Max transforming interval: 20 sec |
| Low temperature Storage | Inductance change: 10% (Mn-Zn: 30%), Q factor change: 20% | Temperature: -55~-402, Duration: 962 hours |
| High temperature Storage | Inductance change: 10% (Mn-Zn: 30%), Q factor change: 20% | Temperature: 125~852, Duration: 962 hours |
| Damp Heat (Steady States) | Inductance change: 10% (Mn-Zn: 30%), Q factor change: 20% | Temperature: 602, Humidity: 90-95% RH, Duration: 962 hours |
| Heat endurance of Reflow soldering | L/L10% (Mn-Zn: 30%), Q/Q30%, DCR/DCR10% | Twice reflow, Peak temp: 260+0/-5 |
| Resistance to solvent test | No case deformation or change in appearance | Dip in IPA solvent for 5 min, dry for 5 min, brush 10 times |
| Overload test | No smoke, no peculiar smell, no fire; characteristics normal after test | Apply twice rated current for 5 minutes |
| Voltage resistance test | No breakdown; characteristics normal after test | DC1000V, Current: 1mA, Time: 1Min |
Recommended Reflow Soldering Curve
Refer to page 9 for the recommended reflow soldering curve. Adjust and confirm according to user's environment/equipment.
Reminders for Using These Products
- Storage: Within 12 months, temperature 5~40C, humidity 35-65% RH.
- Environment: Avoid gas corrosive environments (salt, acid, alkali).
- Handling: Avoid direct contact with terminals due to oils. Handle carefully to prevent damage from dropping.
- Terminals: Do not bend terminals excessively.
- Cleaning: Do not rinse coils; contact SXN if cleaning is necessary.
- Magnetic Fields: Do not expose to magnets or magnetic fields.
- Preheating: Preheat before soldering; temperature difference (solder vs. chip) should not exceed 150C.
- Soldering Corrections: Perform within specified conditions; overheating may cause issues.
- Thermal Design: Allow sufficient margin for self-heating when power is ON.
- Non-magnetic Shield Type: Careful layout is needed to avoid malfunction 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