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TFM322512ALMA4R7MTAA Inductor Power Shielded Thin Film 4.7uH 20% 1MHz Metal 1.9A 0.151Ohm DCR 1210 Automotive T/R

1. Product Overview
TFM322512ALMA4R7MTAA is an automotive-grade thin-film power inductor launched by TDK, designed for harsh environments such as automotive electronics. This product uses thin-film technology, has high reliability, low loss and excellent temperature resistance, and is suitable for high-frequency switching power supplies, DC-DC converters and motor drives.

2. Core features
Inductance value: 4.7 µH (tolerance ±20%)
DC resistance (DCR): maximum 151 mΩ, low-loss design improves efficiency
Rated current: 1.9 A (saturation current up to 2.2 A), supports high-power transmission
Package size: 1210 (3.2 mm × 2.5 mm × 1.2 mm), compatible with automated mounting
Automotive certification: Passed AEC-Q200 standard to meet automotive electronics reliability requirements
Environmental compliance: Meets RoHS lead-free standards
Wide temperature range: Operating temperature -55℃ to 150℃, adaptable to extreme environments

3. Technical advantages
Thin film process: Compared with traditional winding inductors, it has more stable frequency characteristics and lower magnetic loss
High-frequency performance: Optimizes inductor stability at high frequencies (such as 1 MHz), suitable for high-frequency switching power supplies
Temperature resistance: Wide temperature design meets the stability requirements of vehicle-mounted equipment in cold and hot environments
Reliability: Passed automotive-grade vibration, shock and life tests to ensure long-term operating stability

4. Typical application scenarios
Onboard power system: such as DC-DC converter, onboard charger
Motor drive: such as electric power steering, window lift motor control
In-vehicle entertainment system: power filtering and signal isolation
Sensor interface: provide stable power filtering and suppress electromagnetic interference