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SAW (Surface Acoustic Wave) filters are used both for medium frequencies as IF filter for receivers and radio links and for front-end of receivers, they are also widely used to filter the output of RF transmitters in the driver low power part before the final stage. These filters are also used in more sophisticated applications that require excellent response such as group delay in digital modulators-demodulators and professional modulators for TV transmitters.
These filter are manufactured using a very fine photolithographic technique by depositing metal electrodes in the shape of a comb on a substrate of monocrystalline piezoelectric quartz or lithium niobate crystals. The electrodes work as transducers for the RF signal and employ the electrical interference generated by mechanical waves to obtain the function of RF filter.
Here some differences with crystal quartz filters:
Order code: | FW-201346B |
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140 MHz band-pass SAW filter ITF 201346B |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 140 MHz |
Bandwidth (3dB): | 14.35 MHz |
Insertion loss (@ fN): | 24 dB |
Application: | IF |
Package: | D2012 |
Mounting: | thru-hole |
Size: | 20.3 x 12.7 mm |
Order code: | FW-201360B |
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140 MHz band-pass SAW filter ITF 201360B |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 140 MHz |
Bandwidth (3dB): | 28.4 MHz |
Insertion loss (@ fN): | 24 dB |
Application: | IF |
Package: | D2012 |
Mounting: | thru-hole |
Size: | 20.3 x 12.7 mm |
Order code: | FW-250701B |
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140 MHz band-pass SAW filter ITF 250701B |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 140 MHz |
Bandwidth (3dB): | 7.3 MHz |
Insertion loss (@ fN): | 22 dB |
Application: | IF |
Package: | D2012 |
Mounting: | thru-hole |
Size: | 20.3 x 12.7 mm |
Order code: | FW-851906 |
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140 MHz band-pass SAW filter Sawtek Inc 851906 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 140 MHz |
Bandwidth (3dB): | 2.556 MHz |
Insertion loss (@ fN): | 25.6 dB |
Application: | IF |
Package: | Style I |
Mounting: | thru-hole |
Size: | 22 x 12.6 mm |
Order code: | FW-851913 |
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140 MHz band-pass SAW filter Sawtek Inc 851913 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 140 MHz |
Bandwidth (3dB): | 6.3 MHz |
Insertion loss (@ fN): | 26.5 dB |
Application: | IF |
Package: | Style I |
Mounting: | thru-hole |
Size: | 22 x 12.6 mm |
Order code: | FW-851915 |
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140 MHz band-pass SAW filter Sawtek Inc 851915 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 140 MHz |
Bandwidth (3dB): | 7.3 MHz |
Insertion loss (@ fN): | 25 dB |
Application: | IF |
Package: | Style I |
Mounting: | thru-hole |
Size: | 22 x 12.6 mm |
Order code: | FW-851923 |
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140 MHz band-pass SAW filter Sawtek Inc 851923 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 140 MHz |
Bandwidth (3dB): | 12.2 MHz |
Insertion loss (@ fN): | 22.3 dB |
Application: | IF |
Package: | Style I |
Mounting: | thru-hole |
Size: | 22 x 12.6 mm |
Order code: | FW-851925 |
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140 MHz band-pass SAW filter Sawtek Inc 851925 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 140 MHz |
Bandwidth (3dB): | 14.165 MHz |
Insertion loss (@ fN): | 22 dB |
Application: | IF |
Package: | Style I |
Mounting: | thru-hole |
Size: | 22 x 12.6 mm |
Order code: | FW-B4553 |
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150.58 MHz band-pass SAW filter Epcos B39151-B4553-Z110 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 150.58 MHz |
Bandwidth (3dB): | 600 kHz |
Insertion loss (@ fN): | 8 dB |
Application: | General purpose |
Package: | DCC-14 |
Mounting: | SMD |
Size: | 14.2 x 8.4 mm |
Order code: | FW-TFS211 |
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211 MHz band-pass SAW filter Telefilter GmbH TFS 211-1 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 211 MHz |
Bandwidth (3dB): | 270 kHz |
Insertion loss (@ fN): | 4.5 dB |
Application: | GSM, Radio base stations |
Package: | 10-Terminal Ceramic |
Mounting: | SMD |
Size: | 9.1 x 7.1 mm |
Order code: | FW-B3640 |
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238 MHz and-pass SAW filter Epcos B39231-B3640-Z510 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 238 MHz |
Bandwidth (3dB): | 800 kHz |
Insertion loss (@ fN): | 8.5 dB |
Application: | DCS |
Package: | QCC-12 |
Mounting: | SMD |
Size: | 13.3 x 6.5 mm |
Order code: | FW-SAFC243R95 |
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243.95 MHz band-pass SAW filter muRata SAFC243.95MF30X-TC11 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 243.95 MHz |
Bandwidth (3dB): | 220 kHz |
Insertion loss (@ fN): | 5 dB |
Application: | PHS |
Package: | SC59 |
Mounting: | SMD |
Size: | 9.1 x 4.8 mm |
Order code: | FW-SAFC246 |
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246 MHz band-pass SAW filter muRata SAFC246.000MC30X-TC |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 246 MHz |
Bandwidth (3dB): | 160 kHz |
Insertion loss (@ fN): | 5 dB |
Application: | GSM, PCN, PCS |
Package: | SC59 |
Mounting: | SMD |
Size: | 9.1 x 4.8 mm |
Order code: | FW-B4839 |
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282 MHz band-pass SAW filter Epcos B39281-B4839-U310 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 282 MHz |
Bandwidth (3dB): | 320 kHz |
Insertion loss (@ fN): | 5.2 dB |
Application: | GSM, PCN, PCS |
Package: | QCC-8C |
Mounting: | SMD |
Size: | 5 x 5 mm |
Order code: | FW-SF1084B |
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299 MHz band-pass SAW filter RFM SF1084B |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 299 MHz |
Bandwidth (3dB): | 550 kHz |
Insertion loss (@ fN): | 6 dB |
Application: | GSM, Radio base stations |
Package: | 8-Terminal Ceramic |
Mounting: | SMD |
Size: | 8.5 x 5.8 mm |