FCom Fuji Crystal · Miniature CSP SAW Filters
FSF-1109/1411 SAW Filters — 707–3500 MHz
CSP · 1.1 × 0.9 mm / 1.4 × 1.1 mm
Explore 64 FSF-1109 and FSF-1411 SAW filter models for compact RF designs. Compare center frequency, bandwidth, insertion loss and stopband attenuation, then request the model-specific datasheet to support your selection and PCB integration.
Model Catalog
Find the Right Model
Compare center frequency, bandwidth, insertion loss and stopband attenuation, then request the datasheet for your selected part number.
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| Complete P/N | Series | Package | Center Frequency (MHz) | Bandwidth (MHz) | Insertion Loss (dB) | Stopband Attenuation (dB) | Mount | Technical File |
|---|---|---|---|---|---|---|---|---|
| FSF1109- | FSF1109 | CSP1109 | 707.0 | 17.0 | 2.0 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 742.5 | 27.0 | 2.5 | 50.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 780.5 | 45.0 | 1.6 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 782.0 | 12.0 | 1.6 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 836.0 | 25.0 | 2.0 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 836.0 | 25.0 | 2.0 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 847.0 | 30.0 | 1.6 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 876.5 | 35.0 | 2.0 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 881.5 | 25.0 | 1.5 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 881.5 | 25.0 | 2.3 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 897.5 | 30.0 | 2.5 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 897.5 | 35.0 | 2.0 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 897.5 | 30.0 | 2.5 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 897.5 | 35.0 | 2.0 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 911.5 | 27.0 | 1.6 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 915.0 | 26.0 | 1.5 | 50.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 915.0 | 26.0 | 1.5 | 50.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 942.5 | 35.0 | 2.2 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 942.5 | 35.0 | 2.2 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1176.45 | 20.0 | 1.4 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1176.45 | 20.0 | 1.4 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1197.0 | 62.4 | 1.3 | 20.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1202.0 | 72.0 | 2.4 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1268.52 | 20.46 | 1.7 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1561.089 | 21.0 | 3.3 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1568.0 | 18.32 | 1.6 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1573.0 | 66.0 | 2.8 | 30.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1575.42 | 2.4 | 1.1 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1582.4 | 46.0 | 0.9 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1582.4 | 46.0 | 1.8 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1582.4 | 46.0 | 1.8 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1600.0 | 40.0 | 1.9 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1603.0 | 12.0 | 2.3 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1637.0 | 2.0 | 2.0 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1745.5 | 70.0 | 1.8 | 30.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1745.5 | 70.0 | 1.8 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1747.5 | 75.0 | 1.3 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1747.5 | 75.0 | 2.1 | 30.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1800.0 | 40.0 | 2.0 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1842.5 | 65.0 | 2.0 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1842.5 | 75.0 | 1.5 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1842.5 | 75.0 | 2.5 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1880.0 | 60.0 | 2.2 | 30.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 1880.0 | 60.0 | 2.2 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1900.0 | 40.0 | 1.7 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 1950.0 | 60.0 | 1.6 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2140.0 | 60.0 | 1.8 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2155.0 | 90.0 | 2.6 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2350.0 | 100.0 | 2.3 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2437.0 | 69.0 | 1.1 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2442.0 | 79.0 | 1.2 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 2442.0 | 79.0 | 1.3 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 2442.0 | 79.0 | 2.0 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2492.0 | 8.0 | 6.5 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2535.0 | 70.0 | 2.0 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2593.0 | 194.0 | 2.1 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2593.0 | 194.0 | 2.2 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 2593.0 | 194.0 | 2.2 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2595.0 | 120.0 | 1.6 | 30.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2595.0 | 120.0 | 2.5 | 30.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 2595.0 | 160.0 | 1.5 | 40.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 2595.0 | 160.0 | 2.5 | 40.0 | SMD | Request PDF |
| FSF1109- | FSF1109 | CSP1109 | 2655.0 | 70.0 | 2.0 | 30.0 | SMD | Request PDF |
| FSF1411- | FSF1411 | CSP1411 | 3500.0 | 200.0 | 2.0 | 40.0 | SMD | Request PDF |
| No models match your selection. | ||||||||
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.
Request PDF opens a prepared email to FCom for the selected model.
Selection Notes
Compare the Parameters That Matter
Frequency and Bandwidth
Choose the center frequency and bandwidth that match your signal requirements. Use the selected model’s datasheet to review its bandwidth definition and specified passband.
Loss and Rejection
Evaluate insertion loss against your signal budget and stopband attenuation against your rejection mask, using the frequency intervals and test conditions specified for the model.
Package and Interface
Select the CSP package that fits your layout, then review the pin assignment, source and load conditions, and matching requirements for the complete part number.
Integration Notes
Plan the Electrical and PCB Interface
Source, Load and Matching
Use the model-specific electrical interface and recommended matching arrangement when evaluating the filter. Package size and center frequency alone do not determine the required termination or matching components.
PCB and Operating Conditions
Review the package drawing, land pattern, grounding and assembly requirements before PCB layout. Evaluate the selected filter under your application’s signal and operating conditions.
Package Options
Two Miniature CSP Formats
FSF-1109
- Package
- CSP1109
- Package size
- 1.1 × 0.9 mm
- Mounting
- SMD
- Models in this collection
- 35
FSF-1411
- Package
- CSP1411
- Package size
- 1.4 × 1.1 mm
- Mounting
- SMD
- Models in this collection
- 29
Use the mechanical drawing for the selected part number to establish package height, dimensional tolerances, viewing direction, pin functions and the recommended land pattern.
Selection and Design-In Support
Discuss Your Filter Requirements
For model selection and design-in support, send FCom the complete part number, target passband, insertion-loss budget, rejection requirements, source and load conditions, operating temperature and expected quantity.
Engineering Questions
Frequently Asked Questions
What frequency options are included in this collection?
This collection includes 64 models with center frequencies from 707 to 3500 MHz. These are individual frequency options; the overall range does not represent a continuous passband or availability at every frequency.
How do the FSF-1109 and FSF-1411 series differ?
FSF-1109 models use a 1.1 × 0.9 mm CSP package, while FSF-1411 models use a 1.4 × 1.1 mm CSP package. Both are surface-mount devices. Compare the complete part number and electrical specifications when selecting a model.
Can models with the same center frequency be used interchangeably?
A shared center frequency does not establish interchangeability. Bandwidth, insertion loss, stopband attenuation, package dimensions, pin assignments and matching requirements should be reviewed for the exact models.
How should I interpret the bandwidth and attenuation values?
Use the catalog values for initial comparison. Refer to the model-specific datasheet for the bandwidth criterion, insertion-loss limits, rejection frequency intervals, source and load conditions, and measurement temperature.
How can I obtain a model-specific datasheet?
Select Request PDF beside the required part number to prepare an email to FCom. Include your application, passband and rejection requirements, source and load conditions, operating temperature and expected quantity.