specifications mm49 & sm49 frequency range 1.0 ~ 200.0 mhz* operating temp range -20 1 c ~ 70 1 c (other ranges available, please call factory) storage temp range -55 1 c ~ 105 1 c shunt capacitance 7.0 pf max calibration tolerance ! 30ppm @ 25 1 c frequency tolerance ! 50ppm from -20 1 c to 70 1 c standard (call for other options) vs temp range equiv series resistance 1.0 = 3000 24.0 ~ 75.0 = 40 (3rd overtone) (mhz = ? max) 1.843 ~ 4.0 = 800 75.0 ~ 160.0 = 80 (5th overtone) fundamental unless otherwise 4.0 ~ 6.0 = 100 160.0 ~ 180.0 = 120 (7th overtone) otherwise indicated 6.0 ~ 24.0 = 40 180.0 ~ 200.0 = 140 (9th overtone) drive level 0.1 mw max humidity 85% rh, 85 1 c, 48 hours hermetic seal leak rate 2 x 10 -8 atm-cm 3 /sec max solderability mil-std-202f method 208e vibration mil-std-202f method 204; 35g, 50~2000 hz (<25.0 mhz); 20g, 50~2000 hz (25.0 mhz) shock mil-std-202f method 213b test cond e, 1000g, 1/2 sine wave packaging bulk (standard); tape & reel available (see over) * call for your specific frequency requirement designing and manufacturing innovative frequency control devices since 1927 microprocessor crystals mm49 m sm49 502 via del monte, oceanside, ca 92054 tel: 760.433.4510 fax: 760.434.0255 monitor products company inc reserves the right to make changes to its products and product specifications without notice. no liability is assumed as a result of their use or application. 07-02-01 for many years, the mm49 unit was an industry-standard crystal, with advantages in size and cost. although smaller and newer designs have gained large acceptance, the reliable mm49 remains the most economical in many applications. in addition, it can usually be designed to provide special motional parameter requirements, such as vcxo pull, that smaller crystal units cannot match. so if cost is an issue, monitor recommends the rugged, resistance-welded mm49, and its surface-mountable partner, the sm49. monitor products has a proven track record as a pioneer manufacturer in the frequency control market. if our extensive selection of standard and engineered crystals and oscillators does not meet your spec, we will work with you towards a customized solution. mm49 sm49 units = mm
mm49 m sm49 microprocessor crystals 502 via del monte, oceanside, ca 92054 tel: 760.433.4510 fax: 760.434.0255 monitor products company inc reserves the right to make changes to its products and product specifications without notice. no liability is assumed as a result of their use or application. 07-02-01 part numbering key mm49n1c3a = @ 14.31818 mhz sample part number n 1 c a l = 12 pf m = 15 pf n = 20 pf o = 32 pf q = 24 pf s = series resonant x = cust spec correlation packaging mode a = std package b = 3rd lead, 0.5? e = tape & reel j = insulating sleeve k = insulating spacer x = cust spec frequency stability c = ! 50 ppm* x = cust spec 3 temp range 3 = - 20 1 c~70 1 c* 9 = cust spec mm49 series mm49 sm49 1 = fundamental* 3 = 3rd overtone 5 = 5th overtone 7 = 7th overtone 14.31818 sm49n1c3a = @ 16.0 mhz n 1 c a 3 mm49 16.0 frequency (mhz) * standard call factory for additional options. use full descriptive part number when ordering. parts will be marked with se ries and frequency only. anti-resonance parallel: crystals operating at anti-resonance will look inductive in the circuit. changes of reactive values in the circuit will change the crystal frequency. if the crystal is to be used at anti-resonance, the load capacitance should always be specified. the load capacitance c l is the dynamic capacitance of the total circuit. series resonance: at series resonance, the crystal looks resistive in the circuit, and correlation of frequency is not a problem. it must be specified if unit is to be manufactured at series or at a particular load capacitance. crystal correlation theory tape & reel specifications mm49: 18.0mm tape, 1500 pcs/reel (specs as pictured) sm49: please contact factory units = mm
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