molding SMD power inductors LanTu Micro SMS1770 680MT with RoHS Halogen Free and REACH certifications
Molding SMD Power Inductors - SMS1770 Series
Product Overview
The SMS1770 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 ideal for high-density installations due to their integral construction, providing high reliability and excellent 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, these inductors achieve high efficiency and support frequencies up to 3MHz. They are suitable for applications requiring up to 30VDC insulation voltage and comply with RoHS, Halogen Free, and REACH standards.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SMS1770
- Type: Molding SMD Power Inductor
- Certifications: RoHS, Halogen Free, REACH Compliance
Applications
- PDA, notebook, desktop, server applications
- High current POL converters
- Battery powered devices
- DC/DC converters in distributed power systems
Technical Specifications
Dimensions
External Dimensions (LWH): 17.50mm 17.15mm 7.50mm Max
Recommended Land Pattern (mm):
| Part No | A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| SMS1770 | 17.50.50 | 17.150.30 | 7.50 Max | 12.0 Typ | 2.50 Typ | 12.4 | 19.5 | 12.5 |
Electrical Characteristics
| Part No | Inductance (H) @0A | Tol | L (100KHz, 1.0V) Typical | DCR (m) Max | Saturation Current (A) Typical | Heat Rating Current (A) Typical |
|---|---|---|---|---|---|---|
| SMS1770-R22M | 0.22 | 20% | 0.63 | 0.75 | 75.00 | 57.00 |
| SMS1770-R47M | 0.47 | 20% | 0.90 | 1.03 | 72.00 | 55.00 |
| SMS1770-1R0M | 1.0 | 20% | 1.60 | 2.30 | 55.00 | 32.00 |
| SMS1770-1R5M | 1.5 | 20% | 1.78 | 2.50 | 48.00 | 31.00 |
| SMS1770-2R2M | 2.2 | 20% | 2.40 | 2.70 | 34.00 | 29.00 |
| SMS1770-3R3M | 3.3 | 20% | 3.68 | 4.20 | 30.00 | 24.00 |
| SMS1770-4R7M | 4.7 | 20% | 4.84 | 5.50 | 24.00 | 21.00 |
| SMS1770-5R6M | 5.6 | 20% | 6.68 | 7.60 | 23.00 | 20.00 |
| SMS1770-6R8M | 6.8 | 20% | 8.40 | 9.20 | 22.00 | 17.00 |
| SMS1770-8R2M | 8.2 | 20% | 10.10 | 11.60 | 20.00 | 13.00 |
| SMS1770-100M | 10 | 20% | 11.60 | 13.00 | 19.00 | 12.00 |
| SMS1770-150M | 15 | 20% | 18.80 | 20.50 | 14.50 | 11.00 |
| SMS1770-220M | 22 | 20% | 25.10 | 26.50 | 11.50 | 8.50 |
| SMS1770-330M | 33 | 20% | 38.00 | 44.00 | 10.00 | 8.00 |
| SMS1770-470M | 47 | 20% | 48.00 | 55.00 | 7.50 | 6.00 |
| SMS1770-560M | 56 | 20% | 54.00 | 62.00 | 7.00 | 5.50 |
| SMS1770-680M | 68 | 20% | 68.00 | 80.00 | 6.50 | 5.20 |
| SMS1770-101M | 100 | 20% | 110.00 | 118.00 | 5.00 | 3.70 |
Definitions
- Saturation Current: DC current at which inductance drops 30% from its value without current.
- Heat Rating Current: The actual value of DC current when the temperature rise is T 40 (Ta=25).
- Rated DC Current: The lesser value of Isat or Irms.
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
Product Identification
SMS 1770 100 M T
- : Inductance (e.g., 100 = 10 H)
- : Type (SMS = Molding SMD Power Inductor)
- : Tolerance (M = 20%)
Packaging
- Packing Options: Bulk Package (B), Tape & Reel (TF)
- Tape and Reel Specifications: Refer to detailed diagrams for dimensions and quantities.
Reliability Testing
The SMS1770 Series undergoes various reliability tests including Terminal Strength, Resistance to Flexure, Dropping, Solderability, Vibration, Thermal Shock, Low temperature Storage, High temperature Storage, Damp Heat, Heat endurance of Reflow soldering, Resistance to solvent, Overload test, and Voltage resistance test, with specified requirements and test methods detailed in the original documentation.
Recommended Reflow Soldering Curve
Refer to the provided graph for recommended reflow conditions. Adjustments may be necessary based on user's environment and equipment.
Reminders for Using These Products
- Storage: Within 12 months, at 5~40C and 35-65% RH.
- Environment: Avoid gas corrosive environments (salt, acid, alkali).
- Handling: Avoid direct contact with terminals by hand; handle carefully to prevent damage.
- Soldering: Preheat components; ensure temperature difference between solder and chip is within 150C.
- Thermal Design: Allow sufficient margin for self-heating when power is on.
- Magnetic Fields: Do not expose to magnets or magnetic fields.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.