Molding SMD Power Inductors LanTu Micro SMS1770-150MT with Low Impedance and Excellent Current Handling
Molding SMD Power Inductors - SMS1770 Series
Product Overview
The SMS1770 Series by SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. offers ultra-high current SMD power inductors featuring a thin design with low DC resistance and excellent current handling capabilities. These magnetically shielded inductors provide strong anti-electromagnetic interference, making them suitable for high-density installations. Their integral construction ensures high reliability and superior vibration resistance, while the composite structure minimizes buzz noise. Designed for efficiency, these inductors achieve low impedance and small parasitic capacitance through die-casting with low-loss alloy powder, contributing to high energy efficiency by reducing winding DC resistance and core eddy-current loss. They operate at frequencies up to 3MHz and have an absolute maximum voltage of 30VDC, complying with RoHS, Halogen Free, and REACH standards.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Product Type: Molding SMD Power Inductor
- Series: SMS1770
- Certifications: RoHS, Halogen Free, REACH Compliance
- Origin: Shenzhen, China (implied by company name and location)
Applications
- PDA, notebook, desktop, server applications
- High current POL converters
- Battery powered devices
- DC/DC converters in distributed power systems
Technical Specifications
General Specifications
| Specification | Value |
|---|---|
| Operating Temperature | -55 to +125 (Including coils self-temperature rise) |
| Frequency | Up to 3MHz |
| Absolute Maximum Voltage | 30VDC |
Dimensions
| Part No. | External Dimensions (LWH) (mm) | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) | G (mm) | H (mm) |
|---|---|---|---|---|---|---|---|---|---|
| SMS1770 | 17.5017.157.50 | 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. | Test Frequency | DCR (m) Typical | DCR (m) Max | Saturation Current (A) Typical (Isat) | Heat Rating Current (A) Typical (Irms) |
|---|---|---|---|---|---|---|
| SMS1770-R22M | 0.22 20% | 100KHz 1.0V | 0.63 | 0.75 | 75.00 | 57.00 |
| SMS1770-R47M | 0.47 20% | 100KHz 1.0V | 0.90 | 1.03 | 72.00 | 55.00 |
| SMS1770-1R0M | 1.0 20% | 100KHz 1.0V | 1.60 | 2.30 | 55.00 | 32.00 |
| SMS1770-1R5M | 1.5 20% | 100KHz 1.0V | 1.78 | 2.50 | 48.00 | 31.00 |
| SMS1770-2R2M | 2.2 20% | 100KHz 1.0V | 2.40 | 2.70 | 34.00 | 29.00 |
| SMS1770-3R3M | 3.3 20% | 100KHz 1.0V | 3.68 | 4.20 | 30.00 | 24.00 |
| SMS1770-4R7M | 4.7 20% | 100KHz 1.0V | 4.84 | 5.50 | 24.00 | 21.00 |
| SMS1770-5R6M | 5.6 20% | 100KHz 1.0V | 6.68 | 7.60 | 23.00 | 20.00 |
| SMS1770-6R8M | 6.8 20% | 100KHz 1.0V | 8.40 | 9.20 | 22.00 | 17.00 |
| SMS1770-8R2M | 8.2 20% | 100KHz 1.0V | 10.10 | 11.60 | 20.00 | 13.00 |
| SMS1770-100M | 10 20% | 100KHz 1.0V | 11.60 | 13.00 | 19.00 | 12.00 |
| SMS1770-150M | 15 20% | 100KHz 1.0V | 18.80 | 20.50 | 14.50 | 11.00 |
| SMS1770-220M | 22 20% | 100KHz 1.0V | 25.10 | 26.50 | 11.50 | 8.50 |
| SMS1770-330M | 33 20% | 100KHz 1.0V | 38.00 | 44.00 | 10.00 | 8.00 |
| SMS1770-470M | 47 20% | 100KHz 1.0V | 48.00 | 55.00 | 7.50 | 6.00 |
| SMS1770-560M | 56 20% | 100KHz 1.0V | 54.00 | 62.00 | 7.00 | 5.50 |
| SMS1770-680M | 68 20% | 100KHz 1.0V | 68.00 | 80.00 | 6.50 | 5.20 |
| SMS1770-101M | 100 20% | 100KHz 1.0V | 110.00 | 118.00 | 5.00 | 3.70 |
Inductance Tolerance Options
J: 5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30%
Packaging Options
B: Bulk Package, TF: Tape & Reel
Definitions
- Saturation Current (Isat): DC current at which inductance drops 30% from its value without current.
- Heat Rating Current (Irms): 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.
Test Equipment Used
- Inductance (L): WK3260B LCR meter or equivalent
- Current (Isat & Irms): WK3260B+WK3265B or equivalent
- DC Resistance (DCR): Chroma 16502 or equivalent
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.