The SPM4012T-R33M is a shielded power inductor manufactured by TDK Corporation, designed for DC-DC converters and power supply applications. Its shielded construction minimizes electromagnetic interference, making it suitable for sensitive electronic devices. The compact size and robust design allow for efficient power management in space-constrained applications.

Applications:

• DC-DC converters in portable devices
• Power supplies for smartphones and tablets
• LED drivers
• Point-of-Load (POL) regulators
• Noise filtering in power lines
• Automotive electronics

Features:

• Shielded structure for low EMI
• Compact 4.0 x 4.0 mm footprint
• Low DC resistance (DCR) for high efficiency
• High current handling capability
• Operating temperature range suitable for industrial applications
• Surface Mount Technology (SMT) compatible
• RoHS compliant

Benefits:

• Reduced electromagnetic interference with surrounding components
• Efficient power conversion due to low DCR
• Smaller and lighter power supply designs
• Reliable performance in harsh environments
• Easy integration into automated manufacturing processes

Additional Details:

The SPM4012T-R33M has an inductance of 0.33 μH. The 'M' indicates the tolerance, typically ±20%. Saturation current and rated current are key parameters; ensure that the inductor's saturation current exceeds the peak current in your application to prevent performance degradation. The shielded construction utilizes a magnetic material to contain the magnetic field, reducing radiation and conduction of electromagnetic noise. Refer to the TDK datasheet for comprehensive specifications, including saturation current, DC resistance, self-resonant frequency (SRF), and operating temperature range. Proper thermal management may be necessary in high-current applications to prevent overheating. The inductor's reliability and performance are critical for stable and efficient power delivery in various electronic devices.