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Product Detailed Parameters
- Description：FILTER, SAW, 75 MHZ, 10SMD
- Series：-
- Mfr：RFMi
- Package：Tape & Reel (TR),Tape & Reel (TR),Bag
- Frequency - Center：75MHz
- Bandwidth：5.4MHz
- Insertion Loss：11dB
- Ratings：-
- Applications：IF, SDARS
- Mounting Type：Surface Mount
- Package / Case：10-SMD, No Lead
- Height (Max)：0.079" (2.00mm)
- Size / Dimension：0.276" L x 0.197" W (7.00mm x 5.00mm)
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Overview
The RFMi SF1140B is a Surface Acoustic Wave (SAW) filter designed for intermediate frequency applications. It operates at a center frequency of 75 MHz with a bandwidth ranging from 4.2 to 5.4 MHz depending on the specific variant. The component features a low insertion loss and supports a voltage rating of 30V. It is housed in a compact 5.0 x 7.0 mm surface-mount SMP-03 package, offering differential input capabilities suitable for space-constrained designs.
Feature Summary
- Designed specifically for SDARS IF receiver applications
- Features low insertion loss for efficient signal transmission
- Utilizes a compact 5.0 x 7.0 mm surface-mount case
Applications
- SDARS IF Receiver systems
- Signal conditioning circuits
- Intermediate frequency filtering
Procurement Notes
Verify the exact part number suffix against official RFMi documentation to confirm specific electrical characteristics such as bandwidth and attenuation levels. Ensure the selected variant matches the required center frequency and package type for your design. Cross-reference datasheets to validate performance parameters before integration.
Selection Notes
Select this component based on its suitability for SDARS IF receiver architectures requiring precise 75 MHz filtering. Consider the differential input configuration and the specific bandwidth requirements of your application when choosing between available variants. Ensure the surface-mount footprint aligns with your PCB layout constraints.
Part Context
This SAW filter belongs to the RFMi family of signal conditioning components. It is engineered to provide reliable frequency selection in broadcast reception systems. The device integrates advanced acoustic wave technology to achieve high selectivity within a small form factor, supporting modern electronic design trends.
Replacement Considerations
Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative SAW filters from other manufacturers.
