Krystaly, Hradec Králové, a.s.
 
Crystals in UM-1 cases image

Crystals in UM-1 cases

General application
Microcomputers, audio/video-applications, wireless phones, communication devices

Features
Cases HC-52 and UM-1 series are highly reliable,
hermetically sealed by seam welding.
Crystals can be supplied in slim cases, see outline dimensions below.

Assembly, taping
Cases UM-1 series are designed for through hole mount, but can by designed for SMD too.
Crystals in SMD modification can by delivered in tapes wound on reels, suitable for automatic assembly.

Typical specifications
Type UM-1
 Overtone 1. 3. 5. 7. 9.
 Frequency range  3.5-45MHz 16-120MHz 60-190MHz 90-190MHz 120-190MHz
 Freq. adjustment tolerance at 25 °C ±5, ±7, ±10, ±15, ±20, ±50 x 10-6
 Frequency stability see table 1
 Equivalent series resistance see table 2
 Aging ±1, ±2, ±3 ppm/year
 Storage temperature range -40 ... +90 °C
 Load capacitance series resonance, CL= 5 ... 50 pF
 Drive level 10 - 1000 µW
Differences from standard values and other parameters can be consulted.


Frequency stability in temperature ranges (table 1)
Temperature
range [°C]
Frequency stability [ppm]
± 2 ± 3 ± 4 ± 5 ± 7 ± 10 ± 15 ± 20 ± 25 ± 30 ± 40 ± 50
+15 ... +35                        
+10 ... +40                        
+5 ... +45                        
0 ... +50                        
-5 ... +55                        
-10 ... +60                        
-15 ... +65                        
-20 ... +70                        
-25 ... +75                        
-30 ... +80                        
-40 ... +90                        
-55 ... +105                        


Equivalent series resistance (ESRmax) (table 2)
for first overtone
Overtone Frequency [MHz]
3.5 4 5 7 10 15 20 45
1.   300 Ω 200 Ω 100 Ω 80 Ω 50 Ω 40 Ω 30 Ω  

for higher overtones
Overtone Frequency [MHz]
16 25 50 60 90 120 190
3.   130 Ω 80 Ω 40 Ω      
5.               60 Ω  
7.                   120 Ω  
9.                       200 Ω  


 
 
 

UM-1 cases

Outline dimensions [mm]

   through hole modification
  H T Bmax D Note
UM 1 8.0 2.3 3.0 0.35 cap 7.5mm
UM 1 8.8 2.3 3.0 0.35 cap 8.2mm
UM 1-3 8.0 2.3 3.0 0.35 3 pins, central pin is connected to the case
UM 1-3 8.8 2.3 3.0 0.35
UM 1-SLIM 7.7 1.65 2.3 0.35  
UM 1-S 8.0 2.3 3.0 0.35 3 - point mounting for higher resistivity to shock and vibrations
UM 1-S 8.8 2.3 3.0 0.35
   SMD modification
  H LC Bmax D Note
UM 1 SMD* 8.0 11.9   0.35 with clip**
UM 1 SMD* 8.8 12.6   0.35 with clip**
* available in 3-pin version
** clip means solderable metal cable sleeve



 
 
 

KRYSTALY 

Hradec Králové, a.s. 
Okružní 1144 
500 03 Hradec Králové 3 
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