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Jauch Quartz GmbH
Jauch Quartz GmbH


Q-25.0-SMU4-18-30

(SMU4 Series) Surface Mount Quartz Crystal

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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 µ 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 µ W < ± 5 ppm

100 µ 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

h S a

t e e

4U

.

m o c

SMQ series • SMU4
dimensions
3.8 max. 12.9 4.0 max. 0.3 max.
±0.3

pad layout
0.75±0.2 4.4

4.8 max.

10.1 max.

11.5±0.2

3.7±0.3

5.5

5.5

top view

side view

bottom view

2.0

in mm

taping specification
1.75±0.3 ø 1.5±0.1 2.0±0.1 4.0±0.1 0.4±0.1

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

24.0±0.3

11.5±0.1

13.4±0.3

5.0±0.6

8.0±0.2

ø 2.2±0.2

3.5±0.2

Direction of feed

1000 pcs per reel

in mm

standard load capacitance codes
12 pF: a b f c g 24


























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