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RF Filters & Resonators — Precise RF and IF Frequency Selection

FCom provides SAW resonators for RF oscillator and transmitter reference stabilization, SAW filters for RF front-end band selection and interference suppression, and crystal filters or MCFs for narrowband IF and channel selection. Choose by circuit function, then continue to the relevant product series for detailed specifications and datasheets.
RF Reference Stabilization
RF Front-End Band Selection
Narrowband IF Selection
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Submit RF / IF Requirements
  • 01 RF Reference & Frequency Stabilization

SAW Resonators

Frequency-selective resonant elements designed for RF oscillator and transmitter reference circuits in remote-control, wireless-security and short-range radio applications.
  • Use When：Stabilizing an RF oscillator or transmitter reference
  • Signal-Chain Position：Oscillator or RF reference loop
  • Product Scope：Selected frequencies within the 315 MHz to 915 MHz product range; available frequencies, tolerance, temperature and package options vary by series.
  • Select By：Frequency, tolerance, temperature behavior and package
View SAW Resonator Series & Datasheets
  • 02 RF Front-End Band Selection

SAW Filters

Bandpass devices designed to pass the required RF band while attenuating unwanted signals outside the passband in wireless receivers, transmitters and RF modules.
  • Use When：Passing the required RF band while attenuating unwanted out-of-band signals
  • Signal-Chain Position：Receiver or transmitter RF front end
  • Product Scope：Application-specific RF bandpass configurations with center-frequency, bandwidth, impedance, input-power, temperature and SMD package options.
  • Select By：Center frequency, passband, insertion loss, rejection, impedance and input power
View SAW Filter Series & Datasheets
  • 0103 Narrowband IF & Channel Selection

Crystal Filters & Monolithic Crystal Filters

Quartz filter networks for narrowband IF and channel-selection applications requiring high selectivity, controlled bandwidth and strong adjacent-channel attenuation.
  • Use When：Providing narrowband IF or channel selection
  • Signal-Chain Position：Post-mixer IF or channel-selection stage
  • Product Scope：Narrowband crystal and monolithic crystal filter configurations with IF-frequency, bandwidth, termination, coupling, pole and package options.
  • Select By：IF frequency, bandwidth, selectivity, terminating impedance, pole configuration and package.
View Crystal Filter & MCF Series

The Difference Is Under the Lid, and It Starts Before the Quartz Is Cut

Rigorous raw material grading, precision cut-angle engineering, and documented manufacturing stability.

Certified Materials

In-House Acoustic Structure Design

Manufacturing Stability

Certified Materials

Core materials are sourced directly from verified global suppliers, including Kyocera ceramic bases and Heraeus conductor paste. Strict inspection and grading are enforced on every incoming lot at the gate prior to production release to eliminate variance.

In-House Acoustic Structure Design

We design the acoustic structure before wafer patterning, optimizing substrate orientation, IDT geometry, reflectors, metallization, and topology to achieve the target frequency response.
5+ Years

Documented Manufacturing Stability

Production lines maintain a verified 5+ year tracking record of zero process drift. Our quality team utilizes this historical data through full-parameter OQC to ensure that future production lots match established baseline requirements.

Try One or a Hundred. There is No Quantity Limit.

Standard in-stock samples ship within 48 to 72 hours, accelerating initial bench validation and removing volume friction prior to production scaling.
Request samples or talk to an engineer

Free

Samples

Engineers can initiate bench validation immediately with zero MOQ constraints on standard in-stock series. Logistics pipelines guarantee a 48-to-72 hour shipment turnaround for all non-custom components.
1 pieces · 48–72h shipment

100%

Custom Engineering

Specialized frequency, tolerance, or load capacitance requirements undergo direct parameter evaluation by the internal technical group. Our team delivers a comprehensive feasibility response within one working day.

1 working day response · Dedicated engineering team

Verified Through Global Supplier Audits

Our manufacturing lines passed qualification for Arrow, Digikey, Jabil, and Honeywell.
Request compliance documents or schedule a factory audit

Arrow

Supply Chain Audited

Digikey

Inventory Traceability Verified

Jabil

Manufacturing Line Approved

Honeywell

Reliability Standard Certified
Trace
We isolate and trace root causes directly to the specific production lot.
Correct
We enforce an 8D corrective action process with complete lot-level traceability.
Prevent
Our team integrates process improvements directly back into active manufacturing lines.

ISO 9001

Quality management systems — process consistency across every production batch

ISO 14001

Environmental management — compliant manufacturing operations

RoHS & REACH

Full material compliance documentation available for every shipment

AEC-Q200

Automotive-grade qualification for under-hood and safety-critical applications

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