Surface Mount Unshielded SMD Power Inductors LanTu Micro SCD5845-331MT Silver Plated Low Resistance
Unshielded SMD Power Inductors - SCD5845 Series
Product Overview
The SCD5845 Series by SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. offers unshielded SMD power inductors designed for surface mounting. These low-cost, silver-plated inductors feature a small size with high rated current and low DC resistance. They are suitable for a wide range of applications including power supplies for VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters. The series is compliant with RoHS, Halogen Free, and REACH standards.
Product Attributes
- Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
- Series: SCD5845
- Type: Unshielded SMD Power Inductors
- Design: Silver plated type, Low cost design
- Certifications: RoHS, Halogen Free, REACH Compliance
- Mounting Type: Surface mounting equipment
Technical Specifications
Dimensions and Part Numbering
Product Model Structure: SCD 5845 - [Inductance Value] [Tolerance Code] [Packing Code]
- SCD: Type (Unshielded SMD Power Inductors)
- 5845: Series
- Inductance: e.g., 10 uH
- Tolerance Code: J:5%, K: 10%, L: 15%, M: 20%, P: 25%, N: 30%
- Packing Code: T (Tape & Reel), B (Bulk Package)
External Dimensions (mm)
| Part No | A | B | C | D | H | I | J |
|---|---|---|---|---|---|---|---|
| SCD5845 | 5.80.3 | 5.20.3 | 4.50.35 | 2.0 | 5.5 | 2.15 | 1.7 |
Electrical Characteristics
| Part No | Inductance L(H) @0A | Tole | Test Freq | SRF Min (MHz) | DCR Typ () Max | Saturation Current Isat (A) Max | Temperature Rise Current Irms (A) Max |
|---|---|---|---|---|---|---|---|
| SCD5845-1R0M | 1.0 | M | 100KHz | 20 | 0.013 | 6.00 | 5.40 |
| SCD5845-1R5M | 1.5 | M | 100KHz | 20 | 0.017 | 5.00 | 4.70 |
| SCD5845-3R3M | 3.3 | M | 100KHz | 20 | 0.031 | 4.00 | 3.70 |
| SCD5845-4R7M | 4.7 | M | 100KHz | 20 | 0.052 | 3.50 | 3.10 |
| SCD5845-6R8M | 6.8 | M | 100KHz | 20 | 0.059 | 3.00 | 2.40 |
| SCD5845-8R2M | 8.2 | M | 100KHz | 20 | 0.062 | 2.50 | 2.00 |
| SCD5845-100M | 10 | M | 100KHz | 35 | 0.075 | 1.60 | 1.44 |
| SCD5845-120M | 12 | M | 100KHz | 35 | 0.088 | 1.45 | 1.40 |
| SCD5845-150M | 15 | M | 100KHz | 35 | 0.105 | 1.35 | 1.30 |
| SCD5845-180M | 18 | M | 100KHz | 35 | 0.117 | 1.26 | 1.23 |
| SCD5845-220M | 22 | M | 100KHz | 35 | 0.153 | 1.12 | 1.11 |
| SCD5845-270M | 27 | M | 100KHz | 35 | 0.169 | 1.04 | 0.97 |
| SCD5845-330M | 33 | M | 100KHz | 35 | 0.208 | 0.96 | 0.88 |
| SCD5845-390M | 39 | M | 100KHz | 35 | 0.215 | 0.85 | 0.80 |
| SCD5845-470M | 47 | M | 100KHz | 35 | 0.355 | 0.80 | 0.72 |
| SCD5845-560M | 56 | M | 100KHz | 35 | 0.377 | 0.72 | 0.68 |
| SCD5845-680M | 68 | M | 100KHz | 35 | 0.390 | 0.68 | 0.61 |
| SCD5845-820M | 82 | M | 100KHz | 35 | 0.416 | 0.64 | 0.58 |
| SCD5845-101M | 100 | M | 100KHz | 40 | 0.611 | 0.56 | 0.52 |
| SCD5845-121M | 120 | M | 100KHz | 40 | 0.754 | 0.52 | 0.48 |
| SCD5845-151M | 150 | M | 100KHz | 40 | 0.845 | 0.44 | 0.40 |
| SCD5845-181M | 180 | M | 100KHz | 40 | 1.040 | 0.40 | 0.38 |
| SCD5845-221M | 220 | M | 100KHz | 40 | 1.450 | 0.36 | 0.35 |
| SCD5845-331M | 330 | M | 100KHz | 40 | 1.760 | 0.34 | 0.28 |
| SCD5845-471M | 470 | M | 100KHz | 40 | 2.990 | 0.32 | 0.24 |
| SCD5845-681M | 680 | M | 100KHz | 40 | 3.900 | 0.29 | 0.20 |
| SCD5845-102M | 1000 | M | 100KHz | 40 | 5.800 | 0.26 | 0.19 |
Environmental Data
| Parameter | Value |
|---|---|
| Operating Temperature | -40 to +125 (Including coils self-temperature rise) |
Test Equipment
| Parameter | Equipment |
|---|---|
| Inductance (L) | HP4284A or HP4285A LCR meter or equivalent |
| Saturation Current (Isat) & Temperature Rise Current (Irms) | HP4284+42841A or equivalent |
| Self-Resonant Frequency (SRF) | Agilent E4991A or equivalent |
| DC Resistance (DCR) | Chroma 16502 or equivalent |
Definitions
- Saturation Current: DC current at which inductance drops 10% from its value without current.
- Temperature Rise 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.
Packaging 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) |
|---|---|---|---|---|---|---|---|---|---|---|
| SCD5845 | 12 | 8 | 7.5 | 16.4 | 100 | 13 | 330 | 1500 | 4500 | 18,000 |
Reliability Testing
Refer to the datasheet for detailed reliability testing parameters 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.
Recommended Reflow Soldering Curve
The recommended reflow conditions should be adjusted and confirmed according to the user's environment and equipment.
Reminders for Using These Products
- Storage period is within 12 months under conditions: 5~40C, 35-65% RH.
- Avoid use and storage in corrosive gas environments.
- Do not touch electrodes directly with bare hands.
- Handle products carefully to prevent damage.
- Do not bend terminals excessively.
- Do not rinse coils; contact the manufacturer if cleaning is necessary.
- Keep away from magnets or magnetic fields.
- Preheat components before soldering; temperature difference between solder and chip should not exceed 150C.
- Soldering corrections should be within specifications to avoid overheating.
- Allow for sufficient thermal design margin due to self-heating.
- For non-magnetic shield types, careful coil placement on the PCB is required to prevent malfunction due to magnetic interference.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.