General Description from Kyocera:
Surface acoustic wave (SAW) filters are electroacoustic bandpass filters which operate via delay paths that add (passband) and cancel (stopband) frequencies. Surface waves are generated when RF signals are applied to electrodes on a piezoelectric substrate such as PZT piezo material. The amplitude and phase can be controlled by the distance between and overlap of the electrodes.
A typical SAW filter is shown in picture 5. Input is through the interdigital electrode transducer which generates a surface acoustic wave in the piezoelectric substrate. This wave travels to the output interdigital electrode transducer where it is reconverted to a voltage output. The direction of the wave is controlled by damping material which absorbs and prevents scattering of the wave.
SAW filters exhibit higher insertion loss than LC filters, 20-30 dB. Their prime feature is their flat passband characteristics (low ripple) coupled with a constant Group Delay Time (low distortion). This is obtained by the independent design parameters for phase and amplitude characteristics. SAW filters are also small size, rugged, reliable and low cost. This AVX/KYOCERA SAW filter is hermetically sealed in TO type cans to prevent moisture condensation on the surface of the device. This SAW filter is desirable for satellite transceivers / receivers and CATV equipment.
Specifications:
Part Number: KAF-70NR-WC
Insertion Loss: 32 dB max.
Center Frequency: 70 MHz
Pass Band Width at 3dB: 23 MHz
Pass Band Width at 30dB: 30 MHz max.
Group Delay Time Ripple: ±20 nSec
Spurious Characteristics 30 min. (10 to 100MHz)
New Old Stock
We have multiples of these at the start of this listing.
Price is per component.
If you want more than one, change the Buy It Now quantity to the number you need.
Volume discounts are available for multiple purchases of two, three and four or more units.
Picture is of one of them - all are in similar condition.
We typically ship within one business day! International buyers are responsible for any customs/duty fees.
Most of the parts we sell are vintage New Old Stock parts. We are have identified fitment information to the best of our knowledge in the description of this listing or the Compatibility Table. It is possible this part fits other vehicles. If you have fitment concerns, please contact us.
We use high quality shipping supplies and biodegradable peanuts to make sure your parts arrive safely.
NOS (New Old Stock) parts are Genuine Factory Original parts.
NORS (New Old Replacement Stock) parts are original vintage aftermarket parts.
NOS and NORS does not necessarily mean the parts are perfect.
Manufacturing technology was not the same as it is today so imperfections should be expected.
Also, these parts may have been in storage for 40-80 years and could be dusty, greasy or have surface rust, spider webs, etc.