UM-1SJ
Product Description
SMD Communication Crystals
High performance AT-cut quartz
crystal. Reliable resistance weld metal
enclosure. Formed legs and metal clip
to allow for automatic SM placement.
The product is supplied on
tape and reel.
Features
•
•
•
•
Excellent shock and vibration performance
SMD and reflow compatible
Very good short term stability
Low aging and temperature hysteresis
FREQUENCY CHARACTERISTICS
Parameter
Test Condition
Min. Max. Unit
Fundamental frequency range
Nominal Frequency referenced to 25 deg C. (See Note 1)
8
35
MHz
3rd Overtone frequency range
Nominal Frequency referenced to 25 deg C. (See Note 1)
25
90
MHz
5th Overtone frequency range
Nominal Frequency referenced to 25 deg C. (See Note 1)
70
110
MHz
Calibration tolerance
Frequency tolerence at 25 deg C. (See Note 5)
4
25
+/-ppm
Frequency stability over temperature
Referenced to frequency reading at 25 deg C. (See Note 2)
3
50
+/-ppm
Temperature range
Maximum operating temperature available (See Note 2)
-55
105
Degree C
Frequency perturbations
Peak to peak deviation from the frequency versus temperature curve fit.
0.05
1
ppm
Minimum of 1 frequency reading every 3 deg C. over operating temperature range (See note 5)
Short term stability
Root Allan Variance for 1 second Tau
0.2
1
ppb
Long term stability
Frequency drift over 1 year
0.4
1
+/-ppm
G sensitivity
Gamma vector (resultant) all 3 axis with random vibration from 30 Hz to 1500Hz (See note 5)
0.5
1
ppb/G
ELECTRICAL
Load capacitance
Frequency is callibrated to a load at room temperature. Value required to be specified. (See Note 4)
8
Series pF
Shunt capacitance
Operating specification
7
pF
Pullability
Load and crystal design dependant. (See Note 3)
Drive level
Operating specification
3
45
ppm/pF
100
uW
EQUIVALENT SERIES RESISTANCE (ESR)
Operating Mode
Frequency Range
Fundamental
8MHz to < 20MHz (See Note 5)
12
20
Ohm
Fundamental
20MHz to < 30MHz (See Note 5)
15
30
Ohm
3rd Overtone
25MHz to < 30MHz
45
Ohm
3rd Overtone
30MHz to 90MHz
50
Ohm
5th Overtone
70MHz to 110MHz
70
Ohm
ENVIRONMENTAL
The crystal shall meet electrical characteristics and suffer no physical damage after being subject to the following conditions:
Shock
Half sinewave acceleration of 5000G peak amplitude for 250 micro second duration, 3 cycles each plane
Vibration
10G’s RMS 30Hz to 1500Hz duration of 6 hours
Humidity
After 48 hours at 85 deg C 85% realtive humidity non-condensing
Thermal Shock Test
Exposed at -40 deg C for 30 minutes then to 85 deg C for 30 minutes constantly for a period of 5 days
Storage Temperature
-40 to 85 degC
MANUFACTURING INFORMATION
Reflow
Able to withstand solder reflow process
Packaging description
Tape and Reel. 1000pcs per reel standard. Refer to drawing for details.
PG 11
INDEX
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Contact
© 2001 Rakon Limited
UM-1SJ
MARKING
Type
Printed
Line 1
Rakon logo
Line 2
5 character specification code
Line 3
Frequency in MHz. First 6 numbers with decimal place
Line 4
Date code MMYY
SPECIFICATION NOTES
Note 1
Value required to be specified.
Note 2
Values between Min. and Max. are available. Both frequency stability and temperature range must be specified.
For frequency stability options refer to the table labelled “UM-1SJ. Temperature Stability Table”.The shaded
area represents which frequency stabilities are available for a given temperature range.
Note 3
Optional specification. If required, specify a value between Min. and Max.
Note 4
Value required to be specified. Values above Min. are available as well as Series Resonance.
Note 5
The Max. value is standard. Values down to Min. are available.
7.8 [0.306]
11.0 [0.433]
1.0 [0.039]
0.35 [0.014]
3.75 [0.148]
3.0 [0.118]
2.0 [0.079]
1.0 [0.039]
2.4 [0.094]
2.2 [0.087]
TOP VIEW
TOP VIEW
RECOMMENDED PAD LAYOUT
3.2 [0.126]
1.8 [0.070]
7.5 [0.295]
3.2 [0.124]
2.60 [0.102]
1.7 [0.067]
0.85 [0.033]
1.8±0.2 [0.071±0.01]
12.3±0.5 [0.484±0.02]
0.60 [0.024]
1.45 [0.057]
0.2 [0.008]
3.75 [0.148]
END VIEW
SIDE VIEW
NOTES:
1. LEAD & JACKET TAB COPLANARITY 0.15 MAX
2. LEAD MATERIAL & PLATING
CRYSTAL LEAD: GOLD PLTING KOVAR
JACKET TAB:
TIN LEAD PLATED NICKEL SILVER ALLOY.
FILENAME: CAT052
TITLE: UM-1SJ MODEL
RELATED DRAWINGS: UM-1SJ/UM-1SG/UM1SGM REFLOW(CAT111)
UM1SJ/UM1SG/UM-1SGM TAPE & REEL (CAT125)
REVISION: G
DATE:
25 JULY 00
SCALE:
4:1
Millimetres [inch]
PG 12
INDEX
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Next page
Tolerances:
XX
⫽⫾0.5
X.X
⫽⫾0.10
X.XX
⫽⫾0.05
X.XXX ⫽⫾0.05
X0
⫽⫾1.0 ⬚
Hole
Link to web page
⫽⫾0.10
PRECISION QUARTZ PRODUCTS
Contact
© 2001 Rakon Limited