SAW Filters

A Surface Acoustic Wave (SAW) filter is a filter with an electrical input signal that is converted to an acoustic wave by a transducer. The transducer has a series of metal electrodes which are used to create and receive the waves, so that an electrical signal is converted to an acoustic wave and then back to an electrical signal. Each filter is limited to a frequency between 50MHz and 3GHz. 


Bandpass filters

The most common types of SAW filters are known as bandpass filters. These are generally small and offer a range of advantages, such as the ability to conduct during a relatively low-frequency operation.


What are saw filters used for?

SAW filters are commonly used in many different industries including chemical, optical and thermal. Their ability to operate at a wide range of temperatures, generally between -25°C and 85°C, makes them appropriate for a variety of applications. They are commonly used in the digital industry in items such as mobile phones to make touchscreen displays. 


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Description Price Series Typical Centre Frequency 3dB Bandwidth Load Impedance Maximum Insertion Loss Package/Case Dimensions Depth Height Length Maximum Operating Temperature Minimum Operating Temperature Mounting Type
RS庫存編號 772-8972
製造零件編號SF948A
HK$63.00
單位
SF 947.5MHz - 50Ω 3.1dB - 3.8 x 3.8 x 1.33mm 3.8mm 1.33mm 3.8mm - - Surface Mount
RS庫存編號 908-2736
製造零件編號RF1419D
BrandMurata
HK$25.83
個 (以毎袋:5)
單位
- 403.5MHz 3 → 7.5MHz 50Ω 2.5dB SM3838-8 4 x 4 x 1.4mm 4mm 1.4mm 4mm +60°C -10°C Surface Mount
RS庫存編號 167-6215
製造零件編號RF3181E
BrandMurata
HK$6.49
個 (在毎卷:500)
單位
- 916.5MHz 500 → 900kHz 52.8Ω 4dB SM3030-6 3.13 x 3.13 x 1.38mm 3.13mm 1.38mm 3.13mm +125°C -40°C Surface Mount
RS庫存編號 167-6216
製造零件編號SF2137E-1
BrandMurata
HK$6.07
個 (在毎卷:500)
單位
- 869MHz - 50Ω 3.5dB SM3030-6 3.13 x 3.13 x 1.4mm 3.13mm 1.4mm 3.13mm +65°C -30°C Surface Mount
RS庫存編號 167-6218
製造零件編號RF1419D
BrandMurata
HK$14.03
個 (在毎卷:500)
單位
- 403.5MHz 3 → 7.5MHz 50Ω 2.5dB SM3838-8 4 x 4 x 1.4mm 4mm 1.4mm 4mm +60°C -10°C Surface Mount
RS庫存編號 167-6217
製造零件編號RF3446E
BrandMurata
HK$6.21
個 (在毎卷:500)
單位
- 433.92MHz 960 → 1150kHz 134.5Ω 3dB SM3030-6 3.13 x 3.13 x 1.38mm 3.13mm 1.38mm 3.13mm +105°C -40°C Surface Mount
RS庫存編號 772-8979
製造零件編號SF946A
HK$63.50
單位
SF 946.4MHz - 50Ω 3.5dB - 3.8 x 3.8 x 1.33mm 3.8mm 1.33mm 3.8mm - - Surface Mount
RS庫存編號 908-2708
製造零件編號RF3446E
BrandMurata
HK$11.744
個 (以毎袋:5)
單位
- 433.92MHz 960 → 1150kHz 134.5Ω 3dB SM3030-6 3.13 x 3.13 x 1.38mm 3.13mm 1.38mm 3.13mm +105°C -40°C Surface Mount
RS庫存編號 908-2701
製造零件編號RF3181E
BrandMurata
HK$12.92
個 (以毎袋:5)
單位
- 916.5MHz 500 → 900kHz 52.8Ω 4dB SM3030-6 3.13 x 3.13 x 1.38mm 3.13mm 1.38mm 3.13mm +125°C -40°C Surface Mount
RS庫存編號 908-2705
製造零件編號SF2137E-1
BrandMurata
HK$12.07
個 (以毎袋:5)
單位
- 869MHz - 50Ω 3.5dB SM3030-6 3.13 x 3.13 x 1.4mm 3.13mm 1.4mm 3.13mm +65°C -30°C Surface Mount