252MXPR-2537A – TOKO

The TOKO 252MXPR-2537A is a miniature surface-mount helical bandpass filter designed for applications requiring sharp selectivity and low insertion loss within a specific frequency range. Characterized by its compact footprint, the filter utilizes a helical resonator structure to achieve a high Q factor, enabling a narrow passband and steep skirt selectivity. The 252MXPR-2537A exhibits a nominal center frequency around 2.537 GHz, with a 3dB bandwidth typically specified between 20-40 MHz, depending on the specific application circuit. Insertion loss within the passband is typically less than 2.0 dB, while attenuation outside the passband exceeds 30 dB at frequencies ±50 MHz from the center frequency. The filter is constructed using ceramic and metalized components, ensuring stable performance over a temperature range of -40°C to +85°C. Impedance is nominally 50 ohms, facilitating easy integration into standard RF circuits.