o part numbering e lf w e u a0 q sf t f r 10m7 y a i -b0 (part number) q product id w oscillation/number of elements cerafil r for fm sf ceramic filters product id p is expressed " a " or subsequent code, which indicates the structure/size. e structure/size bulk embossed taping ?80mm embossed taping ?30mm 1500pcs. /radial taping h 0 =18mm 1000pcs. /radial taping h 0 =18mm i packaging -b0 -r0 -r1 -a0 -a1 code packaging radial taping is applied to lead type and embossed taping to chip type. with non-standard products, two-digit alphanumerics indicating "individual specification" are added between " u series" and " i packaging". 3db bandwidth of " f " signifies the frequency difference (both + and -) from reference frequency which is nominal center frequency. 2 elements thickness expander mode 3 elements thickness expander mode 2 elements thickness expander mode (2nd harmonic) 2 elements thickness expander mode (3rd over tone) e t v k code oscillation/number of elements lead type chip type l p
c p code structure/size r nominal center frequency expressed by four-digit alphanumerics. the unit is in hertz (hz). decimal point is expressed by capital letter " m " in case of mhz. t 3db bandwidth c d e f g h j k l m n 450khz min 350khz min 330khz 280khz 230khz 180khz 150khz 110khz 80khz 50khz 35khz code 3db bandwidth u series a0 two-digit alphanumerics express series code series y center frequency/tolerance a b c d e h v w k z m f center frequency mentioned by specification -30khz shifted from center frequency of code "a" +30khz shifted from center frequency of code "a" -60khz shifted from center frequency of code "a" +60khz shifted from center frequency of code "a" center frequency mentioned by specification -50khz shifted from center frequency of code "h" +50khz shifted from center frequency of code "h" center frequency mentioned by specification combination of a, b, c, d, e combination of a, b, c nominal center frequency code center frequency 30khz 30khz 30khz 30khz 30khz 25khz 25khz 25khz 20khz tolerance
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