MC-156
MC-156 is THIN SMD LOW/MEDIUM-FREQUENCY CRYSTAL manufactured by Epson Company.
..
Crystal unit THIN SMD LOW/MEDIUM-FREQUENCY CRYSTAL UNIT
- -
- - High-density mounting-type SMD of 1.5mm thickness. Small packaging area and light weight. Excellent shock resistance and environmental capability. Most suitable for small munications devices.
Actual size
Specifications (characteristics)
Item Symbol Specifications 32.768k Hz -55˚C to +125˚C -40˚C to +85˚C 1.0µW max. Operating drive level 0.5µW max. 75.000k Hz Remarks please contact us for inquiries about usable frequencies
Nominal frequency Temperature range f TSTG TOPR GL TSOL ∆f/f θT a CL R1 C1 C0 IR fa
Storage temperature Operating temperature
Maximum drive level Soldering condition Frequency tolerance(standard) Peak temperature(frequency) Temperature coefficient(frequency) Load capacitance Series resistance Motional capacitance Shunt capacitance Insulation resistance Aging
Twice at under 260˚C within 10 sec. or under 230˚C within 3 min. ±20ppm, ±50ppm 25˚C ±5˚C -0.04ppm/ ˚C2 max. 6p F to ∞ 65 kΩ max. 1.9f F typ. 0.8p F typ. 500 MΩ min. ±3ppm/year max. Ta=25˚C ±3˚C, first year
Three drops on a hard board from 75 cm or excitation test with 3000G x 0.3ms x 1/2 sine wave x 3 directions
Ta=25˚C, DL=0.1µW
Please specify 30kΩ
Shock resistance
S.R.
±5ppm max.
Metal may be exposed on the top of this product. This won't affect any quality, reliability or electrical spec.
External dimensions
Internal connection
#3 #4 3.3max. #3
(Unit: mm)
Remended soldering pattern
(Unit: mm)
7.1 max. #4
EA89
#1 #2
#1
#2
1.5 max.
0.4 5.08 (0.75) 1.6 (0.75)
Do not connect #2 and #3 to external device.
Data Sheet 4 U...
