The pulse of progress
Jauch Quartz GmbH •Telephone: (+49) 77 20 / 9 45-0 •Telefax: (+49) 77 20 / 9 45-100 •Internet: www.jauch.de •e-mail: hcj@jauch.de •05/2001
SMQ series • MG3A
actual size
surface mount crystal
features
■good heat resistance characteristics
■extended temperature range
option table:
• FUND – fundamental tone
• BT – BT-cut
• 3 OT – 3rd overtone
• T1 – -40 °C ~ +85 °C
• T3 – -40 °C ~ +125 °C
type MG3A
frequency 3.579545 ~ 33,8 MHz (fundamental AT-cut)
30.0 ~ 91.1 MHz (3rd overtone AT-cut)
30.0 ~ 40.0 MHz (fundamental BT-cut)
frequency tolerance at 25 °C ± 50 ppm ± 50 ppm ± 50 ppm
frequency temp. characteristic ± 50 ppm ± 100 ppm ± 150 ppm
operating temperature -20 °C ~ +70 °C -40 °C ~ +85 °C -40 °C ~ +125 °C
storage temperature -40 °C ~ +125 °C -40 °C ~ +125 °C -40 °C ~ +125 °C
load capacitance CL12 pF ~ 32 pF / series 12 pF ~ 32 pF / series 12 pF ~ 32 pF / series
shunt capacitance CO< 5 pF < 5 pF < 5 pF
drive level max. 100 µW 100 µW 100 µW
aging < ± 5 ppm < ± 5 ppm < ± 5 ppm
date code
Jan. Febr. Mar. Apr. May June July Aug. Sept. Oct. Nov. Dec.
1999 a b c d e f g h j k l m
2000 n p q r s t u v w x y z
2001 A B C D E F G H J K L M
2002 N P Q R S T U V W X Y Z
order information example:
Q- 16.0 - MG3A - 30 -50/ 100 -T1
1. 2. 3. 4. 5. 6. 7.
1. quartz: Q
2. frequency: 16.0 MHz
3. type: MG3A
4. load capacitance: 30 pF
5. frequency stability at 25 °C: ± 50 ppm
6. frequency vs temperature: ±100 ppm
7. special requirement: -40 °C ~ +85 °C (see option table)
example:
16 a00 J n
date code / internal code
company code
load capacitance code (T = 3rd OT)
frequency in MHz (4 digits max.)
marking:
frequency with CLcode / company code / date code
Jauch Quartz GmbH •Telephone: (+49) 77 20 / 9 45-0 •Telefax: (+49) 77 20 / 9 45-100 •Internet: www.jauch.de •e-mail: hcj@jauch.de •05/2001
The pulse of progress
SMQ series • MG3A
13.4±0.3
8.0±0.2
4.0±0.1
1.75±0.3
11.5±0.1
24.0±0.3
6.0±0.2 ø 2.2±0.2
2.0±0.1
ø 1.5±0.1 0.3±0.1
5.5±0.2
Direction of feed
taping specification
temperature (°C) reflow
preheating
time (seconds)
cooling
60 - 120 20 10 20
150±10
235±5
reflow soldering profile
in mm
1000 pcs per reel
9.4
5.0
13.1
1.6 3.0
5.0
# 1 # 2
# 3
# 4
1.2
# 1 # 2
# 4 # 3 6.7
2.0
3.4
1.6
2.4
dimensions pad layout
in mm
Terminals
# 1 - # 4 X-tal
# 2 - # 3 GND
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 68-2-54
frequency cut vibration Rs max. Rs typ. C1typ.
in MHz mode in Ωin Ωin fF
3.5 ~ 3.69 AT fund 180 70 ~ 100 2.5 ~ 5.5
3.7 ~ 3.99 AT fund 150 60 ~80 2.5 ~ 5.5
4.0 ~ 4.09 AT fund 150 50 ~ 70 3.0 ~ 3.4
4.1 ~ 4.39 AT fund 130 50 ~ 70 3.0 ~ 3.4
4.4 ~ 4.99 AT fund 120 40 ~ 60 2.9 ~ 3.5
5.0 ~ 5.99 AT fund 120 40 ~ 60 3.9 ~ 4.2
6.0 ~ 6.99 AT fund 80 35 ~ 55 3.2 ~ 3.6
7.0 ~ 7.99 AT fund 75 25 ~ 45 3.2 ~ 3.6
8.0 ~ 9.99 AT fund 70 20 ~ 40 5.9 ~ 7.0
10.0 ~ 11.99 AT fund 50 15 ~ 35 6.0 ~ 8.0
12.0 ~ 13.99 AT fund 50 15 ~ 35 6.5 ~ 8.5
14.0 ~ 15.99 AT fund 50 10 ~ 15 9.2 ~ 11.2
16.0 ~ 17.99 AT fund 50 10 ~ 15 9.2 ~ 11.2
18.0 ~ 19.99 AT fund 50 10 ~ 15 9.2 ~ 11.2
20.0 ~ 33.8 AT fund 50 10 ~ 15 10.0 ~ 13.5
30.0 ~ 40.0 BT fund 50 10 ~ 15 10.0 ~15.0
30.0 ~ 91.1 AT 3rd OT 100 80 0.8 ~ 2.5
top view side view bottom view top view
12 pF: a
16 pF: b
18 pF: f
20 pF: c
22 pF: g
24 pF: d
30 pF: .
32 pF: e
series: s
standard load
capacitance codes
series resistance (Rs) / motional capacitance (C1) table
