The 9x12mm  inductor is an I-shaped (radial) DIP power inductor featuring a ferrite core, commonly used for high-current applications and power supply filtering. It features 2 pins, high magnetic saturation, and is frequently found in DIY electronics kits.
 
Key Characteristics and Features
Dimensions: 9x12 mm (0912 size)
Inductance: 2.2UH 4.7UH 10uH 22uH 100uH 150uh 220uH 330uH 470uH 1mH 2.2mH 4.7mH 10MH
Type: I-shaped, radial, DIP/through-hole.
Core Material: Ferrite.
Applications: Power supply regulation, anti-interference filtering, communication equipment, and buzzer circuits.
Temperature Range: Typically rated for -20 to +80