LOW PROFILE
MICROPROCESSOR CRYSTAL
Page 1 of 3
AS-4.000-18 Rev B
SPECIFICATIONS
PARAMETER
VALUE
NOMINAL FREQUENCY
MODE OF OSCILLATION
4.000 MHz
Fundamental
FREQUENCY TOLERANCE AT 25°C
±30 ppm max
FREQUENCY STABILITY OVER TEMPERATURE
OPERATING TEMPERATURE RANGE
STORAGE TEMPERATURE RANGE
AGING
LOAD CAPACITANCE
EQUIVALENT SERIES RESISTANCE
SHUNT CAPACITANCE
DRIVE LEVEL
REFLOW CONDITIONS
±50 ppm max
-20°C to +70°C
-55°C to +125°C
±5 ppm per year max
18 pF
130 max
5 pF max
500 uW max
260°C for 10 sec max
Photo is not actual part
MECHANICAL SPECIFICATION
RALTRON ELECTRONICS 10400 N.W. 33rd STREET Miami, Florida 33172 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-4.000-18 Rev B
WAVE SOLDER PROFILE
Wave Solder profile
Profile Feature
SnPb eutectic
Pb-Free
Average ramp-up rate
~200°C/second
typical 1-2°/second
max 4°/second
~130°C
~200°C/second
typical 1-2°/second
max 4°/second
~130°C
235°C
260°C
10 seconds
10 seconds
5°C/second max.
5°C/second max.
Heating Rate during preheat
Final preheat temperature, TS
Peak temperature, TP
Time within +0°C / -5°C of actual temperature, tP
Ramp-down rate
NOTE: This document should serve as recommendation only. Other parameters may also affect soldering, this profile does not guarantee
absolute success. Soldering profile should be determined by the equipment manufacturer and customers’ process engineer.
ENVIRONMENTAL
PARAMETER
MOISTURE SENSITIVITY LEVEL
RoHS
REACH SVHC
HALOGEN-FREE
ESD CLASSIFICATION LEVEL
TERMINATION FINISH
VALUE
1
Compliant
Compliant
Compliant
N/A
Sn
RALTRON ELECTRONICS 10400 N.W. 33rd STREET Miami, Florida 33172 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-4.000-18 Rev B
MARKING
R040xxyw
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, February 19, 2018
Jivens, February 19, 2018
A, Initial Release
B. Updated solder profile to current
spec levels AG 10/25/2018
Raltron Electronics / RAMI Technology USA, LLC, including its affiliates, employees, agents and other persons acting on its behalf (collectively Raltron/RAMI Tech), disclaim any and all liability for any errors or inaccuracies contained in this
data sheet. While Raltron/RAMI Tech has made every reasonable effort ensure the accuracy of all product information, specifications and data contained herein, Raltron/RAMI Tech does not guarantee that the information is accurate, reliable
or current. The product information is provided only for reference purposes only and is subject to change, correction or revision, at any time without notice. Raltron/RAMI Tech does not assume any liability arising out of an application or use
of any product described herein and disclaims any warranties expressed or implied. The user of products in such applications shall assume all risks of such use and will agree to hold Raltron/RAMI Tech, harmless against all damages.
Copyright © 2016, Raltron Electronics / RAMI Technology USA, LLC. All rights reserved. No part of this document may be reproduced in any form without the prior written permission of Raltron Electronics / RAMI Technology USA,
LLC.
RALTRON ELECTRONICS 10400 N.W. 33rd STREET Miami, Florida 33172 U.S.A.
Telephone: 305-593-6033 Fax: 305-594-3973 e-mail: sales@raltron.com web site: http://www.raltron.com
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