31SMX
Quartz Crystal Units
STANDARD LOW FREQUENCY SMD CRYSTALS
STANDARD SPECIFICATIONS
XTAL
Item
Part number Package type Nominal frequency Frequency tolerance at
Actual Size
Symbol
P/N F 25˚C f/F CL Rs P Tt Q Co C1 f/F Ri To Ts f/F f/F f/F
12.5 p F 9p F 7p F
Specifications
31M327 31SMX 32.768 k Hz
B: 20 ppm C: 30 ppm (standard) D: 50 ppm 31M327 31M327-9 31M327-7
3.2±0.1 1.2±0.1
Load capacitance Equivalent series resistance Drive level Turnover temperature Temperature coefficient Quality factor Shunt capacitance Motional capacitance Capacitance ratio Aging (for first year) Insulation resistance Cut Operating temperature range Storage temperature range Shock resistance Vibration resistance IR reflow resistance Reflow soldering condition PACKAGE DATA
XY-CUT
0 -10 -20 -30 -40 -50 -60 -70 -80 f/f(ppm) TYPICAL TEMPERATURE CHARACTERISTICS Temperature( C) -20 -10 0 +10 +20 +30 +40 +50 +60 +70 +80
SOLDERING PATTERN
1.3 1.0 1.3
50 k max. 0.1 W (1.0 W...
