SURFACE MOUNT MICROPROCESSOR CRYSTAL
Page 1 of 3
SERIES AS-SMD
FEATURES
EXCELLENT CLOCK SIGNAL GENERATOR FOR CPU’s
AVAILABLE IN EXTENDED TEMPERATURE RANGE
LOW PROFILE SURFACE MOUNT
SPECIFICATIONS
PARAMETER
VALUE
3.200 MHz to 80.000 MHz
3.200 MHz to 40.320 MHz
24.576 MHz to 80.000 MHz
±30 ppm max
(other tolerances available)
±50 ppm max
(other stabilities available)
-20°C to +70°C Standard
-40°C to +85°C Extended
(other temperature ranges available)
-55°C to +125°C
±5 ppm per year max
6 pF to 32 pF or Series
See Table 1
5.0 pF max
500 µW max
±5 ppm max 75 cm drop test in
3 axes on to a hard wood surface
260°C ±5°C for 10s max
FREQUENCY RANGE
MODE OF OSCILLATION
FUNDAMENTAL
THIRD OVERTONE
FREQUENCY TOLERANCE AT 25°C
FREQUENCY STABILITY OVER TEMPERATURE
OPERATING TEMPERATURE RANGE
STORAGE TEMPERATURE RANGE
AGING
LOAD CAPACITANCE
EQUIVALENT SERIES RESISTANCE
SHUNT CAPACITANCE
DRIVE LEVEL
SHOCK RESISTANCE
REFLOW CONDITIONS
TABLE 1
FREQUENCY
(MHz)
3.579545
3.6864
4.000
4.032
4.096
4.194304
4.433619
4.9152
5.0688
6.000
6.144
6.176
7.15909
7.3728
7.680
8.000
MODE
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
MAX ESR
(Ω)
180
150
130
130
130
130
130
130
100
80
80
80
70
70
70
60
FREQUENCY
(MHz)
8.064
8.192
8.6436
9.600
9.8304
10.000
10.240
10.244
10.245
11.000
11.0592
11.2896
12.000
12.288
12.800
14.31818
MODE
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
FUND
MAX ESR
(Ω)
60
60
60
60
60
50
50
50
50
50
50
50
50
50
50
50
FREQUENCY
(MHz)
14.7456
16.000 to 24.000
24.576
27.000
28.63636
29.000 to 40.000
40.320
47.920
48.000 to 80.000
MODE
FUND
FUND
FUND/3OT
FUND/3OT
FUND/3OT
FUND/3OT
FUND/3OT
3OT
3OT
MAX ESR
(Ω)
40
40
40/80
40/80
40/80
40/70
40/70
70
70
R A L T R O N E L E C T R O N I C S
1 0 4 0 0 N .W . 3 3
r d
S T R E E T
M i a m i , F l o r i d a 3 3 1 7 2
U . S . A .
Telephone: +1-305-593-6033
Fax: +1-305-594-3973
e-mail: sales@raltron.com
web site: http://www.raltron.com
SURFACE MOUNT MICROPROCESSOR CRYSTAL
Page 2 of 3
SERIES AS-SMD
PART NUMBERING SYSTEM
-
-
FREQUENCY
IN MHz
EXTENDED
TEMPERATURE
Blank FOR STANDARD
EXT FOR EXTENDED
-
-
LOAD CAPACITANCE
6 TO 32 pF FOR PARALLEL
S FOR SERIES
-
CONFIGURATION
-
-
MODE
Blank FOR < 24.576 MHz
F FOR ≥ 24.576 MHz
3OT THIRD OVERTONE
-
HEIGHT (H)
Blank FOR 4.0 mm (STANDARD)
H25 2.5mm (CUSTOM)
H27 2.7mm (CUSTOM)
H30 3.0mm (CUSTOM)
H32 3.2mm (CUSTOM)
H35 3.5mm (CUSTOM)
TYPE
AS
-
-
TOLERANCE/STABLITY
(PPM/PPM)
Blank FOR MAXIMUM
PPMPPM
Example: 1020, 2050
-
TAPE &
REEL
-
-
-
SMD
-
-
TR
EXAMPLE: AS-24.000-18-SMD-TR
Surface Mount Microprocessor Crystal, HC-49 SHORT, 24.000 MHz, Fundamental mode, 18 pF load, ±30 ppm
Tolerance, ±50 ppm Stability from -20°C to +70°C, Tape and reel packaging
MECHANICAL SPECIFICATION
CARRIER TAPE DIMENSIONS
NOTE: REFER TO EIA-481 FOR NON-SPECIFIED DIMENSIONS
PACKAGING
330 mm REEL DIAMETER
24 mm TAPE WIDTH, 12 mm PITCH
QUANTITY: 1000 PIECES PER REEL
IN ACCORDANCE WITH EIA-481
R A L T R O N E L E C T R O N I C S
1 0 4 0 0 N .W . 3 3
r d
S T R E E T
M i a m i , F l o r i d a 3 3 1 7 2
U . S . A .
Telephone: +1-305-593-6033
Fax: +1-305-594-3973
e-mail: sales@raltron.com
web site: http://www.raltron.com
SURFACE MOUNT MICROPROCESSOR CRYSTAL
Page 3 of 3
SERIES AS-SMD
REFLOW PROFILE
t
P
T
P
Ramp-up
Critical Zone
T
L
to T
P
T
L
T
SMAX
Temp.
[°C]
T
SMIN
t
S
Preheat
t
L
Ramp-down
t[25°C] to Peak
Time [sec]
Reflow profile
Temperature Min Preheat
Temperature Max Preheat
Time (T
SMIN
to T
SMAX
)
Temperature
Peak Temperature
Ramp-up rate
Ramp-down rate
Time within 5°C of Peak Temperature
Time t[25°C] to Peak Temperature
Time
T
SMIN
T
SMAX
t
S
T
L
T
P
R
UP
R
DOWN
t
P
t[25°C] to Peak
t
L
150°C
200°C
60-180 sec.
217°C
260°C
3°C/sec max.
6°C/sec max.
10 sec.
480 sec.
60-150 sec.
ENVIRONMENTAL
PARAMETER
MOISTURE SENSITIVITY LEVEL
REACH SVHC
RoHS
TERMINATION FINISH
VALUE
1
Compliant
6/6 Lead Free
Sn
November 2016
R A L T R O N E L E C T R O N I C S
1 0 4 0 0 N .W . 3 3
r d
S T R E E T
M i a m i , F l o r i d a 3 3 1 7 2
U . S . A .
Telephone: +1-305-593-6033
Fax: +1-305-594-3973
e-mail: sales@raltron.com
web site: http://www.raltron.com
模拟与混合信号
