Quartz Crystal · MTF38
Pin Type Crystal
·
3.0 x 8.9 mm
actual size
■
wave soldering temperature: 260 °C max.
■
3 x 8 mm cylinder type
2002/95/EC
RoHS compliant
RoHS
General Data
type
frequency range
MTF38
3.50 ~ 40.0 MHz
30.0 ~ 48.0 MHz
frequency tolerance at 25 °C
load capacitance C
L
shunt capacitance C
o
storage temperature
drive level max.
aging
± 15 ppm ~ ± 30 ppm
12 pF ~ 32 pF or series
< 5 pF
-40 °C ~ +90 °C
500 µW
(100 µW recommended)
(fund. AT-cut)
(3rd OT. AT-cut; ask, if higher frequencies are available)
ESR (series resistance Rs)
frequency
in MHz
3.50 ~ 3.6999
3.70 ~ 4.0999
4.10 ~ 5.9999
6.00 ~ 9.9999
10.0 ~ 13.999
14.0 ~ 40.000
30.0 ~ 48.000
vibration
mode
fund.- AT
fund.- AT
fund.- AT
fund.- AT
fund.- AT
fund.- AT
3rd OT - AT
ESR max.
in
Ω
180
150
120
70
50
40
100
ESR typ.
in
Ω
80
60
40
30
20
15
80
< ± 5 ppm first year
Frequency Stability vs. Temperature
± 20 ppm
-20 °C ~ +70 °C
-40 °C ~ +85 °C
STD.
T1
O
± 30 ppm
± 50 ppm
Marking
frequency with
load capacitance code
company code / date code
2011 2015
2012 2016
2013 2017
2014 2018
•
O
Jan. Febr. Mar. Apr. May June July Aug. Sept. Okt. Nov. Dec.
•
a
n
A
b
p
B
c
q
C
d
r
D
e
s
E
S
f
t
F
T
g
u
G
U
h
v
H
j
k
l
y
m
z
w x
J
K
•
O
standard
available
L M
Y
Z
N P
Q R
V W X
Dimensions
8.9 max.
3.0 max.
8.0 min.
1.1
Load Capacitance Codes
7 pF: m
8 pF: k
9 pF: n
10 pF: h
11 pF: l
12 pF: a
in mm
13 pF: v
14 pF: x
15 pF: j
16 pF: b
17 pF: t
18 pF: f
20 pF: c
22 pF: g
24 pF: d
25 pF: r
27 pF: w
30 pF: .
32 pF: e
series: s
T: 3rd OT
ø 0.3
example 4.0 MHz / 12 pF: 4a000
Mounting
Mounting:
if the crystal should be mounted vertically to your board (see picture), do not directly
solder the metal can. The crystal may be overheated by the direct heat flow.
Please use glue (hot-melt adhesive) or mechanical clamping to fasten the metal can.
glue
crystal
PC board
heat isolating material
Order Information
Q
Quartz
frequency
type
load capacitance
in pF
30 pF standard
12 pF ~ 32 pF
S for series
stability at
25 °C
30 = ± 30 ppm std
stability vs.
temp. range
see table
blank =
T1=
FU =
3OT =
option
3.50 ~ 48.0 MHz
MTF38
-20 °C ~ +70 °C
-40 °C ~ +85 °C
for fundamental frequencies
≥
20 MHz
3rd overtone
Example: Q 30.0-MTF38-30-30/30-FU
Jauch Quartz GmbH
•
e-mail: info@jauch.de
full data can be found under: www.jauch.de / www.jauch.co.uk / www.jauch.fr / www.jauchusa.com
All specifications are subject to change without notice
200911-18
ST - Low Power RF
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