DC to 40 GHz

Thin Film Filters

Precision Performance. Standard & Custom Designs.

Mini-Circuits’ expanding line of thin-film on alumina filters provides RF designers with compact, high-performance solutions for demanding frequency-selective applications. The ABF-series bandpass and ALF-series lowpass filters combine low insertion loss, sharp rejection characteristics, and excellent unit-to-unit repeatability, leveraging precision thin-film fabrication on high-Q alumina substrates. Available in surface-mount footprints as small as 0.275 x 0.084”, these filters are well suited for applications in communications, radar, electronic warfare, and test instrumentation where size, loss, and selectivity are critical design considerations.

Designed and manufactured in house, Mini-Circuits’ thin film filter line offers a growing selection of off-the-shelf models alongside custom designs tailored to specific frequency, bandwidth, rejection, and packaging requirements—giving you a common technology and manufacturing platform for both standard and application-specific solutions.

Key Features:

• Passbands from DC to 40 GHz
• Low passband insertion loss
• Stopband rejection up to 60 dB
• Growing selection of models in stock
• Custom designs available