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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-B4842 |
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360 MHz band-pass SAW filter Epcos B39361-B4842-Z910 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 360 MHz |
Bandwidth (3dB): | 200 kHz |
Application: | GSM, PCN |
Package: | QCC-12B |
Mounting: | SMD |
Size: | 7 x 5 mm |
Order code: | FW-SAFP380 |
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380 MHz band-pass SAW filter muRata SAFP380MC15T-TC |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 380 MHz |
Bandwidth (3dB): | 5 MHz |
Application: | GSM |
Package: | SP511 |
Mounting: | SMD |
Size: | 11 x 5.3 mm |
Order code: | FW-B3550 |
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433.92 MHz band-pass SAW filter Siemens B39431-B3550-U310 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 433.92 MHz |
Bandwidth (3dB): | 730 kHz |
Insertion loss (@ fN): | 2 dB |
Application: | Remote control |
Package: | QCC-8C |
Mounting: | SMD |
Size: | 5 x 5 mm |
Order code: | FW-FH04 |
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433.92 MHz band-pass SAW filter NDK 433FH04 |
Conditions: | N (The product is brand new) |
Nominal frequency: | 433.92 MHz |
Bandwidth (3dB): | 1 MHz |
Insertion loss (@ fN): | 4 dB |
Application: | Remote control |
Package: | D-518B |
Mounting: | thru-hole |
Size: | 11.4 x 4.8 mm |
Order code: | FW-B619 |
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Two-channel 479.5 MHz band-pass SAW filter Siemens Matsushita B39481-B619-B210 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 479.5 MHz |
Bandwidth (3dB): | 27 MHz |
Insertion loss (@ fN): | 22.1 dB |
Application: | DSB, TV-sat |
Package: | TO-39 |
Mounting: | thru-hole |
Size: | Ø9.3 mm |
Order code: | FW-HWYB101 |
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940 MHz band-pass dual SAW filter HITACHI HWYB101 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 940 MHz |
Bandwidth (3dB): | 42 MHz |
Application: | HiperLAN |
Mounting: | SMD |
Size: | 15 x 6 mm |
Order code: | FW-B4115 |
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942.5 MHz band-pass SAW filter Epcos B39941-B4115-U510 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 942.5 MHz |
Bandwidth (3dB): | 35 MHz |
Insertion loss (@ fN): | 2.7 dB |
Application: | EGSM |
Package: | DCC-6D |
Mounting: | SMD |
Size: | 3 x 3 mm |
Order code: | FW-B4127 |
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942.5 MHz band-pass SAW filter Epcos B39941-B4127-U410 |
Nominal frequency: | 942.5 MHz |
Bandwidth (3dB): | 35 MHz |
Insertion loss (@ fN): | 2.2 dB |
Application: | EGSM |
Package: | DCC-6C |
Mounting: | SMD |
Size: | 3 x 3 mm |
Order code: | FW-B4131 |
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942.5 MHz band-pass SAW filter Siemens Matsushita B39941-B4131-U410 |
Nominal frequency: | 942.5 MHz |
Bandwidth (3dB): | 35 MHz |
Insertion loss (@ fN): | 3.2 dB |
Application: | EGSM |
Package: | DCC-6C |
Mounting: | SMD |
Size: | 3 x 3 mm |
Order code: | FW-B7602 |
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942.5 MHz band-pass SAW filter Epcos B39941-B7602-A610 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 942.5 MHz |
Bandwidth (3dB): | 35 MHz |
Insertion loss (@ fN): | 2.5 dB |
Application: | EGSM |
Mounting: | SMD |
Size: | 3 x 3 mm |
Order code: | FW-B7611 |
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942.5 MHz band-pass SAW filter Epcos B39941-B7611-A310 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 942.5 MHz |
Bandwidth (3dB): | 35 MHz |
Insertion loss (@ fN): | 2.9 dB |
Application: | EGSM |
Mounting: | SMD |
Size: | 3 x 3 mm |
Order code: | FW-SAFC942-1842 |
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Dual band 942.5 and 1842.5 MHz band-pass SAW filter muRata SAFC942.5T1842.5ML80T-TC04 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 942.5 MHz |
Bandwidth (3dB): | 35 MHz |
Insertion loss (@ fN): | 3 dB |
Application: | EGSM, GSM1800 |
Package: | SC44 |
Mounting: | SMD |
Size: | 3.8 x 3.8 mm |
Order code: | FW-SAFC947 |
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947.5 MHz band-pass SAW filter muRata SAFC947.5MC70T-TC |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 947.5 MHz |
Bandwidth (3dB): | 25 MHz |
Insertion loss (@ fN): | 3.5 dB |
Application: | GSM |
Package: | SC44 |
Mounting: | SMD |
Size: | 3.8 x 3.8 mm |
Order code: | FW-SAFEB1G57 |
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1575.5 MHz band-pass SAW filter muRata SAFEB1G57KE0F00R12 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 1575.5 MHz |
Insertion loss (@ fN): | 0.95 dB |
Application: | GPS |
Mounting: | SMD |
Size: | 1.35 x 1.05 mm |
Order code: | FW-SAFC1618 |
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1620 MHz band-pass SAW filter muRata SAFC1618MA91T-TC12 |
Conditions: | N- (The product is brand new but it comes from an old production) |
Nominal frequency: | 1620 MHz |
Bandwidth (3dB): | 30 MHz |
Application: | General purpose |
Mounting: | SMD |
Size: | 3 x 3 mm |