The 1255AY-1R2N is a fixed inductor manufactured by Toko America Inc. It is designed for surface mount applications and has an inductance value of 1.2 microhenries.

Applications:

• RF circuits
• Power supplies
• DC-DC converters
• Filters
• Impedance matching

Features:

• Surface mount design
• Shielded construction
• High Q factor
• Tight inductance tolerance

Benefits:

• Easy installation on PCBs
• Reduced EMI (Electromagnetic Interference)
• Improved circuit performance
• Precise inductance value for accurate circuit operation

The 1255AY-1R2N inductor typically has a tolerance of ±3%. The 'N' in the part number often denotes the tolerance code. The self-resonant frequency (SRF) is an important parameter, which is the frequency at which the inductor's parasitic capacitance resonates with its inductance, leading to a decrease in impedance. The saturation current represents the current level at which the inductance value drops significantly (e.g., by 10% or 20%). The DC resistance (DCR) specifies the resistance of the inductor's winding, which contributes to power losses. Size is 12mm x 12mm. Datasheet should be consulted for specific details such as saturation current, SRF, and DCR.