33µH SMD Power Inductor CD54 — 5.8 × 5.0 × 4.5 mm

The CD54 33µH SMD Power Inductor is a compact, shielded ferrite inductor designed for switch-mode power supplies (SMPS), DC-DC step-down/step-up converters, and general voltage filtering applications. With its small footprint (approx. 5.8 × 5.0 × 4.5 mm) and robust construction, it ensures stable, efficient energy storage in modern electronic circuits. Suitable for both industrial and prototyping applications where high performance and low losses are required.

⚙️ Key Features

• Inductance: 33µH nominal – ideal for ripple current control in buck/boost converters.
• CD54 package: Compact SMD footprint (5.8 × 5.0 × 4.5 mm) for high-density layouts.
• Shielded ferrite core: Reduces electromagnetic interference (EMI) in sensitive designs.
• Power inductor: Suitable for SMPS, LED drivers, and voltage regulation circuits.
• Surface-mount (SMD): Compatible with automated assembly and reflow soldering.
• Reliable and durable: Ideal for continuous operation in embedded and consumer electronics.

📐 Technical Specifications

• Inductance: 33µH (nominal)
• Series: CD54
• Dimensions (L × W × H): 5.8 × 5.0 × 4.5 mm (approx.)
• Type: Shielded ferrite power inductor, SMD
• Polarity: Non-polarized component
• Tolerance: ±20% (typical)
• Rated current / DCR: Depends on manufacturer (see datasheet)
• Recommended frequency: Hundreds of kHz to several MHz
• Assembly: Reflow solder compatible
• RoHS compliant: Yes
• 

🔌 Applications

• DC-DC converters: Step-down and step-up regulators for efficient power control.
• Power filtering: Ripple reduction and noise suppression in voltage regulation stages.
• Embedded and industrial systems: Efficient power stages for IoT nodes, sensors, and electronic devices.
• SMPS: Energy storage element in compact, high-efficiency designs.

🧰 Integration Tips

• Select an inductor with Isat above the converter’s peak current and verify Irms for thermal limits.
• Minimize loop area between the switch, diode/MOSFET, and inductor to reduce EMI.
• Check DCR to control losses and efficiency at high currents.
• Follow recommended pad layout for the CD54 footprint to ensure reliable soldering.
• Keep sensitive analog/RF traces away from the switching node and inductor.

👍 Compatibility

Suitable for any electronic project requiring efficient and stable power conversion — from compact power modules to industrial control circuits.

📦 Package Includes

• 1 × CD54 33µH SMD Power Inductor

✅ Why Choose This Inductor

With a compact CD54 form factor, shielded ferrite core, and 33µH inductance, this inductor provides stable and efficient performance for modern SMPS and voltage regulation circuits — the ideal choice for engineers and electronics enthusiasts alike.