THIN SMD LOW/MEDIUM-FREQUENCY CRYSTAL UNIT
MC-206
• High-density mounting-type SMD of max. 2.0mm thickness.
• Small with small packaging area and light weight.
• High heat resistance allows reflow soldering.
• Excellent shock resistance and environmental capability.
• Most suitable for small communications devices.
Actual size
Specifications (characteristics)
Item
Symbol
f
T
STG
T
OPR
GL
T
SOL
∆f/f
θT
a
C
L
R
1
C
1
C
0
IR
fa
±3ppm/Y max.
55 kΩ max.
1.8fF typ.
0.9pF typ.
500 MΩ min.
±5ppm/Y 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
Specifications
32.768 kHz
32.000 kHz to 100.000 kHz
-55˚C to +125˚C
-40˚C to +85˚C
1.0µW max.
Twice at under 260˚C within 10 sec.
Remarks
Nominal frequency
Temperature
range
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
or under 230˚C within 3 min.
±20ppm, ±50ppm
±50ppm, ±100ppm
25˚C ±5˚C
-0.04ppm/ ˚C
2
max.
6pF to
∞
55 kΩ to 10 kΩ
3.0fF max.
1.5pF max.
Please specify
As per below table
Ta=25˚C, DL=0.1µW
Shock resistance
S.R.
±5ppm max.
There are some cases that a parts of the cylindrical capsule of quartz unit expose on the surface of the molding material.
Series resistance
Frequency (kHz)
Series resonance
resistance (Ω)
32
≤
f < 40
55K
Ω
max.
40
≤
f < 60
30K
Ω
max.
(Unit: mm)
60
≤
f < 70
25K
Ω
max.
70
≤
f
≤100
22K
Ω
max.
(Unit: mm)
External dimensions
7.3 max.
#4
#3
Recommended soldering pattern
Internal connection
#4
#3
1.2
3.88
1.2
#1
#1
#2
#2
2.0max.
1.8
0.4
5.08
Do not connect
#2 and #3 to external device.
http://www.spezial.cz - - - spezial@spezial.cz - - - Hotlines: Tel (02) 2434 2200 - - - Fax (02) 2434 3200
1.3
2.4
1.3
E. A. 67
2.5
4.1
ETC [ ETC ]
