FCom Fuji Crystal · SAW Filters
FSF-2015/2520 SAW Filters
CSP · 2.0 × 1.5 / 2.5 × 2.0 mm
Compare five FCom SAW filter models by center frequency, bandwidth, insertion loss and stopband attenuation. Select the complete part number that meets your requirements and request its latest datasheet for design evaluation.
Model Catalog
Five models at discrete center frequencies from 652.5 to 2492.0 MHz. FSF-2015 uses CSP2015 (2.0 × 1.5 mm); FSF-2520 uses CSP2520 (2.5 × 2.0 mm).
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| Complete P/N | Series | Package | Center Frequency (MHz) | Bandwidth (MHz) | Insertion Loss (dB) | Stopband Attenuation (dB) | Mount | Technical File |
|---|---|---|---|---|---|---|---|---|
| FSF2015-652M5-25M-1.7-40 | FSF2015 | CSP2015 | 652.5 | 25.0 | 1.7 | 40.0 | SMD | Request PDF |
| FSF2015-677M5-25M-1.7-50 | FSF2015 | CSP2015 | 677.5 | 25.0 | 1.7 | 50.0 | SMD | Request PDF |
| FSF2015-902M5-25M-2.5-40 | FSF2015 | CSP2015 | 902.5 | 25.0 | 2.5 | 40.0 | SMD | Request PDF |
| FSF2015-947M5-25M-2.1-40 | FSF2015 | CSP2015 | 947.5 | 25.0 | 2.1 | 40.0 | SMD | Request PDF |
| FSF2520-2492M-16M-2-30 | FSF2520 | CSP2520 | 2492.0 | 16.0 | 2.0 | 30.0 | SMD | Request PDF |
Request PDF opens your email application with the selected part number in the subject.
Across the FCom product portfolio, published product information is intended to support preliminary selection and technical evaluation. Final design and procurement decisions should be based on the latest model-specific datasheet and applicable specifications, including parameter definitions, minimum, typical and maximum values, test conditions and operating limits. Series-level ranges describe the available product options and do not represent the performance limits of any individual model.
Selection Notes
Use the catalog to shortlist a model, then review its detailed specifications against your signal requirements.
Center Frequency
Select the required center frequency from the listed options. The catalog range describes discrete products; it does not represent continuous frequency coverage or a single filter passband.
Bandwidth
Check the bandwidth definition and reference level in the selected model’s datasheet. Evaluate the required signal bandwidth and frequency tolerance under the specified test conditions.
Loss & Rejection
Review insertion loss, passband ripple and stopband attenuation at the relevant frequencies. Use the model-specific minimum, typical and maximum values and their test conditions for design decisions.
Integration Notes
Source & Load Conditions
Use the source and load conditions specified for the selected part number. Review any recommended matching circuit before connecting the filter to the surrounding RF stages.
Package & PCB Layout
Check the model-specific mechanical drawing, pin assignment and recommended land pattern before PCB release. Follow its grounding and routing guidance when implementing the filter.
Board-Level Evaluation
Evaluate the selected filter on the intended PCB with the actual source, load and matching network. Check the response across your required operating conditions.
For technical guidance, share the complete part number, target frequency, bandwidth, rejection requirements, source and load conditions, and operating temperature range with our engineering team.
Frequently Asked Questions
Which center frequencies are listed?
This catalog lists five discrete center frequencies: 652.5, 677.5, 902.5, 947.5 and 2492.0 MHz. The catalog spans 652.5–2492.0 MHz; this does not indicate continuous frequency coverage or the passband of any individual model.
How do FSF-2015 and FSF-2520 differ in this catalog?
FSF-2015 models use the CSP2015 package, measuring 2.0 × 1.5 mm. The FSF-2520 model uses the CSP2520 package, measuring 2.5 × 2.0 mm. Both are surface-mount options. Select by the complete part number and its electrical and mechanical specifications.
How should I interpret the bandwidth values?
The catalog lists 25.0 MHz for the four FSF-2015 models and 16.0 MHz for the FSF-2520 model. Refer to the latest model-specific datasheet for the bandwidth definition, reference level, test conditions and applicable limits.
Can these models use the same matching circuit or PCB footprint?
Evaluate each model using its own recommended source and load conditions, matching circuit, pin assignment and land pattern. Do not assume that models in this catalog are electrically or mechanically interchangeable.
How do I request a datasheet or technical guidance?
Select Request PDF beside the required model to open an email addressed to FCom with the complete part number in the subject. For technical guidance, include your target frequency, bandwidth, rejection requirements, source and load conditions, and operating temperature range.