Unshielded SMD Power Inductors - SCD5845 Series
Product Overview
The SCD5845 Series from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. offers unshielded SMD power inductors designed for surface mounting. These low-cost inductors feature a silver-plated type construction, providing a small size with high rated current capabilities 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 complies 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
- Packaging Options: Bulk Package (B), Tape & Reel (T)
Technical Specifications
Dimensions and Land Pattern
| Part No | A (mm) | B (mm) | C (mm) | D (mm) | H (mm) | I (mm) | J (mm) |
| 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 () | Saturation Current Max (A) | Temperature Rise Current Max (A) |
| 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
Inductance (L): HP4284A, HP4285A or equivalent LCR meter.
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.
Product Identification
Example: SCD 5845 100 M T
- SCD: Type
- 5845: Series
- 100: Inductance (e.g., 100 = 10 uH)
- M: Inductance Tolerance (e.g., M: 20%)
- T: Packing (T: Tape & Reel)
Inductance Tolerance Options
- J: 5%
- K: 10%
- L: 15%
- M: 20%
- P: 25%
- N: 30%
Packaging Specifications
Tape and Reel Dimensions:
| Part No | Inductance L(H) | Tole | Test Freq | SRF Min (MHz) | DCR Typ () | Saturation Current Max (A) | Temperature Rise Current Max (A) |
| 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 |
Tape Dimension (mm): W=12, P=8, W1=7.5
Reel Dimensions (mm): A=16.4, B=100, C=13, D=330
Packing Quantity: REEL (PCS): 1500, Inside Box (PCS): 4500, Outside Carton (PCS): 18,000
Recommended Reflow Soldering Curve
The recommended reflow conditions are provided for guidance and may need adjustment based on specific user environments and equipment. Please refer to the datasheet for the graphical representation.
Reminders for Using These Products
- Storage: Within 12 months, under conditions of 5~40C and 35~65% RH.
- Environment: Avoid use or storage 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.
- 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: Ensure preheating before soldering; temperature difference between solder and chip should not exceed 150C.
- Soldering Corrections: Perform within specified conditions; overheating may cause issues.
- Self Heating: Account for self-heating when designing for thermal management.
- Layout: For non-magnetic shield types, careful coil placement on the PCB is required to prevent malfunctions due to magnetic interference.
2410121442_LanTu-Micro-SCD5845-2R2MT_C5127216.pdf
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Surface mount unshielded SMD power inductors LanTu Micro SCD5845-2R2MT with design and performance Images
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