M1252 Series
SPECIFICATION FOR 2.5x2.0 mm AT CUT SMT CRYSTAL
FEATURES
Surface mount AT-cut crystal
Compliant to RoHS directive
APPLICATIONS
Clock circuits in communications equipment
Test equipment
Portable and wearable devices.
Ordering Information:
Product
Family
Temperature Range
Code
6
2
Value
-20 °C to +70 °C
-40 °C to +85 °C
Tolerance at +25 °C
Code
D
E
G
H
J
M
Value
±10 ppm
±15 ppm
±20 ppm
±25 ppm
±30 ppm
±50 ppm
Stability
Code
D
E
G
H
J
M
Value
±10 ppm
±15 ppm
±20 ppm
±25 ppm
±30 ppm
±50 ppm
Code
Blank
S
xx
Load Capacitance
Value
18 pF (standard)
Series Resonant
Customer Specified (6 pF to 50 pF)
Frequency
XXX.XXXXXX MHz
M1252
Example: M12526JM 25.000000 MHz
M1252
6
J
M
25.000000 MHz
Electrical Specifications:
Parameter
Mode of Oscillation
Frequency Range
Frequency Tolerance
Frequency Stability
Operating Temperature
Aging
Load Capacitance
Resistance
Symbol
F
O
F/F
F/F
T
A
C
L
R
s
Min.
Typ.
Max.
Fundamental (AT cut)
12.000
54.000
See Ordering Information Table
See Ordering Information Table
See Ordering Information Table
-3
+3
See Ordering Information Table
(standard is 18 pF)
100
80
50
40
5
100
500
Units
MHz
ppm
ppm
°C
ppm/year
pF
Ω
Ω
Ω
Ω
pF
µW
MΩ
12.000 – 15.999 MHz
16.000 – 26.999 MHz
27.000 – 35.000 MHz
35.001 – 54.000 MHz
Tested @ 100VDC
Conditions
@ +25 °C
Ref to +25 °C
@ +25 °C
Shunt Capacitance
Drive Level
Insulation Resistance
C
O
D
L
Environmental & Package Specifications:
Mechanical Shock
Vibration
Thermal Cycle
Hermeticity
Gross Leak
Fine Leak
Resistance to Solvents
Solderability
Max. Soldering Conditions
Package
Per MIL-STD-202, Method 213, Condition C (100 g’s, 6 ms duration, ½ sinewave)
Per MIL-STD-202, Method 201 & 204 (10 g’s from 10-2000 Hz)
Per MIL-STD-883, Method 1010, B (-55°C to 125°C, 15 min. dwell, 10 cycles)
Per MIL-STD-202, Method 112 (1 x 10
-8
atm cc/s of Helium)
Per MIL-STD-202, Method 112 (30 sec. Immersion)
Per MIL-STD-202, Method 112 (1 x 10
-8
atm cc/s of Helium)
Per MIL-STD-883, Method 2015
Per EIAJ-STD-002
See solder profile, Figure 1
2.5 x 2.0 mm ceramic leadless 4 pad package
Page 1 of 3
M1252 Series
SPECIFICATION FOR 2.5x2.0 mm AT CUT SMT CRYSTAL
Marking:
Part Marking
Line 1
xxMxxx
Line 2
M Y WW V
M
Y
WW
V
Legend
MtronPTI
Year
Week
Vendor
Dimensions:
Reflow Soldering Conditions:
Figure 1
Page 2 of 3
M1252 Series
SPECIFICATION FOR 2.5x2.0 mm AT CUT SMT CRYSTAL
Tape and Reel Specifications:
All dimensions are in mm.
A
B
C
2.4
2.9
1.55
D
3.5
E
1.2
F
4
G
4
H
8
J
178
K
13
L
21
M
60
MtronPTI reserves the right to make changes to the product(s) and service(s) described herein without notice.
No liability is assumed as a result of their use or application.
Rev.0_06/15/16
Page 3 of 3
