200
J/0 00.0
300
actual size
MQ series • UM-1 (HC52/U)
high precision quartz crystals
features
s
high stability
s
surface mount option
type
frequency (MHz)
4.0 ~ 38.0
fundamental
frequency tolerance at 25 °C
20.0 ~ 105.0
3rd overtone
MQ1 (UM-1)
50.0 ~ 175.0
5th overtone
70.0 ~ 250.0
7th overtone
± 3 ppm ~ ± 15 ppm (other on request)
frequency stability options
± 3 ppm
O °C ~ +60 °C
± 5 ppm -2O °C ~ +70 °C
± 15 ppm -4O °C ~ +90 °C
± 25 ppm -50 °C ~ +105 °C
(other on request)
storage temperature
load capacitance C
L
shunt capacitance C
O
drive level max.
aging
-55 °C ~ + 125 °C
8 pF ~ 30 pF / series
< 7 pF
100 µ W
< ± 3 ppm
order information example:
Q - 20.0 - MQ1 - 20 - 5 / 5 - SMC
1.
1.
2.
3.
4.
5.
6.
7.
test conditions:
a) acceleration:
1000 g /0.5 ms, 1/2 sine wave
b) shock (random drop):
height 75 cm, 3 times to hardwood surface (∆R/R
≤
20%;
∆f/f ≤
± 5 ppm)
c) vibration:
f = 10 Hz ~ 55 Hz; amplitude = 1.5 mm; period = about 1 minute;
time = 2 h each direction
d) solderability:
according to DIN 68-2-6
2.
3.
4.
5.
6.
7.
quartz:
frequency:
type:
load capacitance:
frequency stability at 25 °C:
frequency vs temperature:
special requirement:
Q
20.0 MHz
MQ1 (UM1)
20 pF (S for series)
± 5 ppm
± 5 ppm
SMC - surface mount with clip
marking:
1. line = frequency (fund. tone in kHz, overtones in MHz)
2. line = company code / date code / internal code
The pulse of progress
MQ series • UM-1 (HC52/U)
dimensions
UM-1/SMD-Clip dimensions
A-version
7.4
2.0
0.2
7.7
11.7
±0.3
8.0
±0.2
pad layout
0.5
±0.1
1.2
±0.1
3.0
6.9
±0.1
10.5
±0.3
8.0 max.
10.6
0.9
±0.2
0.8
±0.1
3.75
0.15
1.8
±0.2
3.4
±0.2
2.0
3.8
0.35
±0.02
12.0 min.
B-version
7.4
0.5
±0.1
0.2
7.7
±0.3
3.3
±0.1
2.0
8.0
±0.2
1.2
±0.1
3.75
3.0
8.8
±0.2
7.9
±0.1
2.0
5.1
2.0
3.75
6.5
-0.5
1.8
±0.2
3.4
±0.2
in mm
10.0
9.2
2.0
2.2
2.5
in mm
500
300
200
100
9th OT
7th OT
50
30
20
GT
motional capacitance C
1
in fF (typical)
(typical)
50
40
30
20
10
5
4
3
2
1
1
2
3
4 5
10
20
3rd OT
5th OT
10
5
4
3
2
1
0.5
0.4
0.3
0.2
0.1
GT
3rd OT
resistance in
5th OT
7th OT
9th OT
1
2
3
4 5
10
20
30
40 50
100
200
300
30
40 50
100
200
300
frequency in MHz
frequency in MHz
taping specification UM-1/SMD
1.75
±0.3
ø 1.5
±0.1
2.0
±0.1
4.0
±0.1
0.3
±0.05
24.0
±0.3
11.5
±0.1
14.2
7.7
12.0
ø 1.5
±0.2
3.8
±0.2
Direction of feed
1000 pcs per reel
in mm
The pulse of progress
High Precision
series resistance table (Rs)
motional capacitance table (C
1
)
测试/测量
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
