LOW PROFILE
MICROPROCESSOR CRYSTAL
Page 1 of 3
AS-18.432-20-SMD-TR
SPECIFICATIONS
PARAMETER
FREQUENCY RANGE
MODE OF OSCILLATION
VALUE
18.432 MHz
FUNDAMENTAL
FREQUENCY TOLERANCE AT 25°C
±30 PPM MAXIMUM
FREQUENCY STABILITY OVER TEMPERATURE
±50 PPM MAXIMUM
OPERATING TEMPERATURE RANGE
STORAGE TEMPERATURE RANGE
AGING
LOAD CAPACITANCE
EQUIVALENT SERIES RESISTANCE
SHUNT CAPACITANCE
DRIVE LEVEL
REFLOW CONDITIONS
MECHANICAL SPECIFICATION
-20°C TO 70°C STANDARD
-40°C TO +90°C
±5 PPM PER YEAR MAXIMUM
20 pF
40
5 pF MAXIMUM
100 µW TYPICAL, 500 µW MAXIMUM
260°C ±5°C FOR 10s MAXIMUM
Photo is not actual part
CARRIER TAPE DIMENSIONS
NOTE: REFER TO EIA-481 FOR DIMENSIONS
PACKAGING
178 mm REEL DIAMETER
24 mm TAPE WIDTH, 4 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: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com web site: http://www.raltron.com
LOW PROFILE
MICROPROCESSOR CRYSTAL
Page 2 of 3
AS-18.432-20-SMD-TR
REFLOW PROFILE
tP
TP
Critical Zone
TL to TP
Ramp-up
TL
tL
TSMAX
Temp.
[°C]
TSMIN
Ramp-down
tS Preheat
Time [sec]
t[25°C] to Peak
Reflow profile
Temperature Min Preheat
Temperature Max Preheat
Time (TSMIN to TSMAX)
Temperature
Peak Temperature
Ramp-up rate
Ramp-down rate
Time within 5°C of Peak Temperature
Time t[25°C] to Peak Temperature
Time
TSMIN
TSMAX
tS
TL
TP
RUP
RDOWN
tP
t[25°C] to Peak
tL
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
RoHS-2
REACH SVHC
HALOGEN-FREE
ESD CLASSIFICATION LEVEL
TERMINATION FINISH
VALUE
1
6/6 COMPLIANT & LEAD FREE
COMPLIANT
COMPLIANT
N/A
Sn
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: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com web site: http://www.raltron.com
LOW PROFILE
MICROPROCESSOR CRYSTAL
Page 3 of 3
AS-18.432-20-SMD-TR
MARKING
R184xxAyw
x – Internal Production ID code
y – Year code
w – Week code
YEAR CODE
Year
Code
2011
2012
2013
2014
2015
2016
2017
2018
2019
Week
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
1
2
3
4
5
6
7
8
9
ALPHA WEEK CODE TABLE
Code
Week
Code
Week
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
s
t
u
v
w
x
y
z
A
B
C
D
E
F
G
H
I
J
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
Code
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
APPROVAL
DRAWN BY:
APPROVED BY:
REVISION:
KJackson, June 30, 2014
KJackson, June 30, 2014
A, Initial Release
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: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com web site: http://www.raltron.com
AS-18.432-20-SMD-TR 价格&库存
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- 1+1.350001+0.16765
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- 100+0.92724100+0.11515
- 500+0.88078500+0.10938