185 crystal filters model mcf mcf r//c r//c cc connecting mark 7.9max 3.75 3-?.35 20.0min 8.0max max 3.2 0.2 type operating temp. range (?c) terminating impedance (k ? // pf) guaranteed attenuation (fo-910khz) (db) inser- tion loss (db) ripple (db) (khz) (db) attenuation bandwidth (khz) (db) pass band- width pole nominal frequency (mhz) mcf features 8 compactness and light weight 8 low insertion loss 8 stable temperature characteristics -40 -30 -20 -10 0 10 20 30 40 (khz) (a) -1.00 -0.75 -0.50 -0.25 0 0.25 0.50 0.75 1.00 (mhz) (b) 70mhz 10 20 30 40 50 60 70 80 (b) (a) 90 att. (db) -40 (a) -1.00 (b) -30 -0.75 -20 -0.50 -10 -0.25 0 0 10 0.25 20 0.50 30 0.75 40 1.00 (khz) (mhz) 90mhz 10 20 30 40 50 60 70 80 (b) (a) 90 att. (db) 70mhz, 90mhz overtone 70N15A 70 2 3 ?.5 18 ?0 1.0 2.0 40 2.5//?.5 ?0~+70 d-360-a 70n15br 70 4 3 ?.5 30 ?5 1.0 3.0 80 2.5//? c c =?.5pf ?0~+70 d-360-b 70n20a 70 2 3 ?0 13 25 0.5 1.5 35 2.3//? ?0~+70 d-360-a 70n20b 70 4 3 ?0 25 25 1.0 3.0 70 2.5//? c c =?pf ?0~+70 d-360-b 70n30ac 70.05 2 3 ?5 13 50 1.0 2.0 35 3.6//? ?0~+70 d-360-a 70n30bh 70 4 3 ?5 25 50 1.0 3.0 70 4.1//? c c =?.4pf ?0~+70 d-360-b 90n8b 90 4 3 ?.0 13 ?2.5 1.0 5.0 70 1.5//?.5 c c =?.5pf ?0~+70 d-360-b 90n20a 90 2 3 ?0 13 25 0.5 1.5 35 2.3//?.2 ?0~+70 d-360-a 90n20bc 90 4 3 ?0 25 25 1.0 3.0 80 2.0//?.8 c c =?pf ?0~+70 d-360-b 90n26ba 90 4 3 ?3 18 25 1.0 3.0 80 2.3//?.7 c c =?.5pf ?5~+85 d-360-b model : 70n20b model : 90n20bc d-360-b means a pair of d-360-a. when d-360-b is used, please use a coupling capacitance . d-360-a~b (nr-2b (3) type) (mm) 70, 90mhz series
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