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actual size
SMQ series * SMU4
surface mount quartz crystal
features s wide frequency range s extended temperature range
type frequency
SMU4 (HC49/U4H - SMD) 3.579545 MHz ~ 25 MHz fundamental AT-cut 27.0 MHz ~ 50.0 MHz 3rd overtone AT-cut
frequency tolerance at 25 C frequency temp. characteristic operating temperature storage temperature load capacitance CL shunt capacitance CO drive level max. aging
30 ppm 30 ppm
30 ppm 50 ppm standard
30 ppm
100 ppm
-20 C ~ +70 C -40 C ~ +90 C 12 pF ~ 30 pF / series < 7 pF 100 W < 5 ppm
-40 C ~ +85 C
order information example:
Q - 25.0 - SMU4 - 30 - 30 / 50 - BT
1.
1. 2. 3. 4. 5. 6. 7.
2.
3.
4.
5.
6.
7.
quartz: frequency: type: load capacitance: frequency stability at 25 C: frequency vs temperature: special requirement:
date code
1999 2000 2001 2002 a n A N
Jan. Febr. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec. b p B P c q C Q d r D R e s E S f t F T g u G U h v H V j w J W k x K X l y L Y m z M Z
w
w
Q 25.0 MHz SMU4 30 pF 50 ppm 50 ppm BT-cut (see option table)
w
.D
t a
S a
e h
-40 C ~ +90 C
12 pF ~ 30 pF / series < 7 pF
t e
U 4
.c
m o
24.0 MHz ~ 40.0 MHz fundamental BT-cut 50 ppm +10/-100 ppm -20 C ~ +70 C -40 C ~ +90 C
12 pF ~ 30 pF / series < 7 pF 100 W < 5 ppm
100 W
< 5 ppm
option table:
* FUND - fundamental tone * BT * 3 OT * T1 - BT-cut - 3rd overtone - -40 C ~ +85 C
marking:
frequency with CL code / company code / date code / internal code
example: 25 a 00 J n
company code
date code / internal code
load capacitance code (T = 3rd OT) frequency in MHz (4 digits max.)
The pulse of progress
w
w
w
.D
at
Sh a
et e
4U
.
om c
SMQ series * SMU4
dimensions
3.8 max. 12.9 4.0 max. 0.3 max.
0.3
pad layout
0.750.2 4.4
4.8 max.
10.1 max.
11.50.2
3.70.3
5.5
5.5
top view
side view
bottom view
2.0
in mm
taping specification
1.750.3 o 1.50.1 2.00.1 4.00.1 0.40.1
test conditions:
a) acceleration: b) shock (random drop): c) vibration: d) solderability: 1000 g /0.5 ms, 1/2 sine wave height 75 cm, 3 times to hardwood surface (R/R 20%; f/f 5 ppm) f = 10 Hz ~ 55 Hz; amplitude = 1.5 mm; period = about 1 minute; time = 2 h each direction according to DIN 68-2-58
24.00.3
11.50.1
13.40.3
5.00.6
8.00.2
o 2.20.2
3.50.2
Direction of feed
1000 pcs per reel
in mm
standard load capacitance codes
12 pF: a b f c g 24 pF: 30 pF: 32 pF: series: d . e s 16 pF: 18 pF: 20 pF: 22 pF:
reflow soldering profile
temperature (C)
2355
reflow
series resistance (Rs) / motional capacitance (C1) table
frequency in MHz 3.5 ~ 3.69 3.7 ~ 3.99 4.0 ~ 4.09 4.1 ~ 4.39 4.4 ~ 4.99 5.0 ~ 5.99 6.0 ~ 6.99 7.0 ~ 7.99 8.0 ~ 9.99 10.0 ~ 11.99 12.0 ~ 13.99 14.0 ~ 15.99 16.0 ~ 17.99 18.0 ~ 19.99 20.0 ~ 25.0 27.0 ~ 50.0 24.0 ~ 40.0 cut AT AT AT AT AT AT AT AT AT AT AT AT AT AT AT BT AT vibration mode fund fund fund fund fund fund fund fund fund fund fund fund fund fund fund fund 3rd OT Rs max. in 180 150 150 130 120 120 80 75 70 50 50 50 50 50 50 50 100 Rs typ. in 60 ~80 50 ~ 70 50 ~ 70 40 ~ 60 40 ~ 60 35 ~ 55 25 ~ 45 20 ~ 40 15 ~ 35 15 ~ 35 10 ~ 15 10 ~ 15 10 ~ 15 10 ~ 15 10 ~ 15 80 C1 typ. in fF 4.0 ~ 4.5 4.5 ~ 4.8 4.8 ~ 5.0 5.0 ~ 5.5 5.5 ~ 6.0 6.0 ~ 7.0 7.0 ~ 10 10 ~ 12 12 ~ 14 12 ~ 16 16 ~ 17 18 ~ 20 20 ~ 22 22 ~ 26 10 ~15 0.8 ~ 2.5
preheating
15010
cooling
60 - 120 20 10 20
70 ~ 100 3.5 ~ 4.0
time (seconds)
The pulse of progress
Quartz Crystals

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