Description

SMD Power Inductor 47uH 3.2×2.5×1.8mm CD32

47µH SMD Inductor (CD32 Package) – Key Specifications

1. Electrical Characteristics

• Inductance (L): 47µH (±20% or ±30% tolerance, depending on series)

• Current Rating:

  • Saturation Current (I_sat): ~1.2A to 3A (current at which inductance drops by 10–30%)

  • Thermal Current (I_rms): ~0.8A to 2A (max continuous current before overheating)

• DC Resistance (DCR): ~0.2Ω to 0.5Ω (typical at 25°C)

• Operating Frequency: Up to 5MHz (suitable for switching regulators)

2. Physical Dimensions

• Package: CD32 (Standardized SMD size):

  • Length: 3.2mm ±0.2mm

  • Width: 2.5mm ±0.2mm

  • Height: 1.8mm ±0.3mm

• Terminations: Pure tin (Sn) or silver (Ag) plating (RoHS compliant)

3. Core Material & Construction

• Core Type: Ferrite or composite material (for high inductance stability)

• Shielding: Unshielded (semi-shielded options may exist)

• Wire: Copper wire wound on laminated core

4. Thermal & Environmental Ratings

• Operating Temperature: -40°C to +125°C (or +105°C for some variants)

• Storage Temperature: -40°C to +150°C

• Flammability Rating: UL94 V-0 (self-extinguishing)

5. Applications

• Buck/boost converters (e.g., MP2307, LM2596)

• LED drivers

• Noise filtering in power circuits

• RF matching networks