Low parasitic capacitance LanTu Micro SMS0420 150MT SMD power inductors with composite construction
Molding SMD Power Inductors - SMS0420 Series
Product Overview
The SMS0420 Series Ultra-high current SMD power inductors are designed for high-density installations requiring low DC resistance and ultra-high current capabilities. Featuring a thin, magnetically shielded design, these inductors offer strong anti-electromagnetic interference properties and high reliability due to their integral construction, providing excellent vibration resistance and ultra-low buzz noise. Their composite structure, utilizing low-loss alloy powder die-casting, results in low impedance and small parasitic capacitance, contributing to high efficiency and reduced winding and core eddy-current losses. These inductors are suitable for frequencies up to 3MHz and have an absolute maximum voltage of 30VDC, complying with RoHS, Halogen Free, and REACH standards.
Key Features:
- Low DC resistance and ultra-high current thin design
- Magnetic shielding for strong anti-electromagnetic interference, suitable for high-density installation
- High reliability and vibration resistance due to integral construction
- Ultra-low buzz noise due to composite construction
- Low impedance and small parasitic capacitance from low-loss alloy powder die-casting
- High efficiency with low DC resistance and low core eddy-current loss
- Frequency up to 3MHz
- Absolute maximum voltage 30VDC
- RoHS, Halogen Free, and REACH Compliance
Applications:
- PDA, notebook, desktop, server applications
- High current POL converters
- Battery powered devices
- DC/DC converters in distributed power systems
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SMS0420
- Type: Molding SMD Power Inductor
- Compliance: RoHS, Halogen Free, REACH
Technical Specifications
| Part No. | Inductance (H) @ 100KHz, 1.0V | Tolerance | DCR (m) Typical | DCR (m) Max | Saturation Current (A) Typical | Heat Rating Current (A) Typical |
|---|---|---|---|---|---|---|
| SMS0420-R10M | 0.10 | 20% | 3.5 | 4.0 | 25.00 | 13.00 |
| SMS0420-R22M | 0.22 | 20% | 6.0 | 6.8 | 13.00 | 9.50 |
| SMS0420-R33M | 0.33 | 20% | 8.0 | 11.0 | 11.00 | 7.00 |
| SMS0420-R47M | 0.47 | 20% | 12.0 | 14.0 | 9.50 | 8.00 |
| SMS0420-R56M | 0.56 | 20% | 14.0 | 16.0 | 9.00 | 7.00 |
| SMS0420-R68M | 0.68 | 20% | 18.0 | 21.0 | 8.00 | 7.00 |
| SMS0420-1R0M | 1.0 | 20% | 24.0 | 27.0 | 7.00 | 6.00 |
| SMS0420-1R2M | 1.2 | 20% | 25.0 | 27.0 | 6.00 | 5.50 |
| SMS0420-1R5M | 1.5 | 20% | 40.0 | 46.0 | 5.50 | 5.00 |
| SMS0420-2R2M | 2.2 | 20% | 52.0 | 58.0 | 5.00 | 4.50 |
| SMS0420-3R3M | 3.3 | 20% | 70.0 | 87.0 | 4.00 | 3.50 |
| SMS0420-4R7M | 4.7 | 20% | 105.0 | 126.0 | 3.00 | 2.80 |
| SMS0420-6R8M | 6.8 | 20% | 120.0 | 135.0 | 2.50 | 2.40 |
| SMS0420-100M | 10 | 20% | 220.0 | 258.0 | 2.00 | 1.60 |
| SMS0420-150M | 15 | 20% | 280.0 | 320.0 | 1.90 | 1.40 |
| SMS0420-220M | 22 | 20% | 450.0 | 510.0 | 1.50 | 1.20 |
Product Identification
SMS 0420 100 M T
- SMS: Type
- 0420: External Dimensions (LWH) (mm)
- 100: Inductance (e.g., 100 means 10 H)
- M: Inductance Tolerance (20%)
- T: Packing (Tape & Reel)
Inductance Tolerance Codes:
- J: 5%
- K: 10%
- L: 15%
- M: 20%
- P: 25%
- N: 30%
Packing Codes:
- B: Bulk Package
- T: Tape & Reel
Shape and Dimensions (mm)
| Part No. | A (L) | B (W) | C (H) | D (Typ) | E (Typ) | F (Typ) | G (Typ) |
|---|---|---|---|---|---|---|---|
| SMS0420 | 4.600.30 | 4.200.20 | 2.00Max | 1.50Typ | 0.80 Typ | 2.20 | 5.20 |
Environmental Data
- Operating Temperature: -55 to +125 (Including coils self-temperature rise)
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
Packaging Specifications
Tape and Reel Specifications:
| Part No. | Tape Dimension W (mm) | Tape Dimension P (mm) | Tape Dimension W1 (mm) | Reel Dimensions A (mm) | Reel Dimensions B (mm) | Reel Dimensions C (mm) | Reel Dimensions D (mm) | REEL (PCS) | Inside Box (PCS) | Outside Carton (PCS) |
|---|---|---|---|---|---|---|---|---|---|---|
| SMS0420 | 12.0 | 8.0 | 5.5 | 12.4 | 100 | 13 | 330 | 3000 | 12,000 | 48,000 |
Cover tape peel off condition:
- Cover tape peel force: 10 to 120g
- Noodle strip peeling angle: 165 to 180
Reliability Testing
Refer to the provided document for detailed reliability testing items, requirements, and test methods (e.g., Terminal Strength, Resistance to Flexure, Dropping, Solderability, Vibration, Thermal Shock, Storage tests, Damp Heat, Heat endurance of Reflow soldering, Resistance to solvent, Overload, Voltage resistance).
Recommended Reflow Soldering Curve
The recommended reflow conditions are provided as a guideline. Users should adjust and confirm conditions based on their specific environment and equipment.
Reminders for Using These Products
- Storage: Within 12 months, under conditions (5~40C, 35~65% RH). Soldering of terminal electrodes may deteriorate if storage period elapses.
- 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. 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. Contact the manufacturer if cleaning is necessary.
- Magnetic Fields: Do not expose products to magnets or magnetic fields.
- Preheating: Preheat components before soldering; temperature difference between solder and chip should not exceed 150C.
- Soldering Corrections: Perform after mounting within specified conditions. Overheating may cause short circuits, performance degradation, or reduced lifespan.
- Thermal Design: Allow sufficient margin for self-heating (temperature increase) when power is ON.
- Non-Magnetic Shield Type: Careful layout is required on the circuit board to prevent malfunctions due to magnetic interference.
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