23
Crystal unit
24
Crystal unit
Specifications (characteristics)
Specifications (characteristics)
THIN SMD LOW / MEDIUM-FREQUENCY CRYSTAL UNIT
MC-206
Product number (please refer to page 1)
Q1xMC206xxxxx00
• High-density mounting-type SMD of Max. 2.0 mm thickness.
• High heat resistance allows reflow soldering.
• Excellent environmental capability.
• Available for lead (Pb)-free soldering.
• Available for lead (Pb)-free terminal.
Actual size
Item Symbol Specifications Remarks
Nominal frequency range f 32.768 kHz 32.000 kHz to 100.000 kHz please contact us for inquiries
about the available frequency
Temperature
range
Storage temperature
TSTG -55 ˚C to +125 ˚C Stored as bare product after unpacking
Operating temperature
TOPR -40 ˚C to +85 ˚C
Maximum drive level GL 1.0 µW Max.
Frequency tolerance (standard) Δf/f ±20 x 10-6, ±50 x 10-6 ±50 x 10-6, ±100 x 10-6 Ta = +25 ˚C, DL = 0.1 µW
Peak temperature (frequency) θT+25 ˚C ±5 ˚C
Temperature coefficient (frequency) a -0.04 x 10-6/˚C2 Max.
Load capacitance CL7 pF, 12.5 pF Please specify
Series resistance R1 55 kΩ Max. 50 kΩ to 20 kΩAs per below table
Motional capacitance C11.8 fF Typ. 3.0 fF
Shunt capacitance C00.9 pF Typ. 1.5 pF
Insulation resistance IR 500 MΩ Min.
Aging fa ±3 x 10-6 / year Max. ±5 x 10-6 / year Max. Ta = +25 ˚C ±3 ˚C, first year
Shock resistance S.R. ±5 x 10-6 Max.
Three drops on a hard board from 750 mm
or excitation test with 29400 m/s2 x 0.3 ms x
1/2 sine wave x 3 directions
Series resistance
Frequency (kHz) 32 ≤ f < 38 38 ≤ f < 65.536 65.536 ≤ f < 75 75 ≤ f ≤100
Series resistance (Ω) 50 kΩ Max. 40 kΩ Max. 25 kΩ Max. 20 kΩ Max.
External dimensions (Unit: mm)
Recommended soldering pattern
(Unit: mm)
1.2
1.32.41.3
1.2 3.88
Do not connect #2 and #3 to external device.
Metal may be exposed on the top or bottom of this product. This won't affect any quality, reliability or electrical spec.
Internal connection
#4 #4 #3
#1 #2
#3
#1 #2
0.4 0.4
5.08
1.8
2.0 Max.
2.5
4.1
7.3 Max.
