IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
+44 (0)1460 270200; Web: www.iqdfrequencyproducts.com

Registration No. FS566088
HC49/4HSMX CRYSTALS
ISSUE 17; 1 NOVEMBER 2010 – RoHS 2002/95/EC
Description
Industry standard low cost SMD crystal
SMD version of the HC49/4H
Resistance welded, hermetically sealed in an inert
atmosphere, glass to metal seals on leads. Lead wires are
mounted onto a plastic former to create a gull wing mount


Stock parts listed at the beginning of this chapter

Load Capacitance (CL): 10pF to 75pF or Series
Drive Level: 500µW max
Ageing: ±5ppm typ per year at 25°C
Shunt Capacitance (C0): 7pF max
Standard Frequency Tolerances and Stabilities

Operating Temperature Ranges
0 to 50°C
10 to 60°C
20 to 70°C

40 to 85°C
55 to 105°C
Storage Temperature Range
55 to 125°C
Environmental
Shock: 981m/s2
perpendicular planes
Vibration: 10Hz-60Hz, 0.75mm amplitude, 60Hz-500Hz,
98.1m/s2
Packaging
Loose in bulk pack, 100pcs per bag
Tape and reel in accordance with EIA-481-D, 1kpcs per reel

Ordering Information (*minimum required)
Frequency*
Model*
Frequency Tolerance (@25°C)*
Frequency Stability (over operating temperature range)*
Operating Temperature Range*
Load Capacitance*
Overtone*
Example
10.00MHz HC49/4HSMX
50/50/–40 to 85C/10 FUND
Outline (mm)
3.8 max
4.3 max*
4.9 max
10.3 max
0.7
13.4 max
0.6
4.4
11.4±0.2
Solder Pad Layout
2.0
4.0
15.0
HC49/3.5H 3.7mm max
* Lower Profile Options
HC49/3H 3.1mm max
HC49/2.5H 2.7mm max
IQD Frequency Products Ltd, Station Road, Crewkerne, Somerset TA18 8AR, United Kingdom
+44 (0)1460 270200; Web: www.iqdfrequencyproducts.com

Registration No. FS566088

Frequency Range Frequency Tolerance
@25°C ±2°C
Operating Temperature
Range
Frequency Stability Available Over
Operating Temperature Range
ESR
Max
Vibration
Mode
Minimum Maximum
3.2 to <4.0MHz ±10ppm to ±100ppm 0 to 50°C ±15ppm ±100ppm 300 Fundamental
AT cut
10 to 60°C ±20ppm
20 to70°C
30 to 80°C ±25ppm
40 to 85°C ±30ppm
55 to 105°C ±100ppm ±500ppm
4.0 to <5.5MHz 0 to 50°C ±15ppm ±100ppm 130
10 to 60°C ±20ppm
20 to70°C
30 to 80°C ±25ppm
40 to 85°C ±30ppm
55 to 105°C ±100ppm ±500ppm
5.5 to <8.0MHz 0 to 50°C ±15ppm ±100ppm 60
10 to 60°C ±20ppm
20 to70°C
30 to 80°C ±25ppm
40 to 85°C ±30ppm
55 to 105°C ±100ppm ±500ppm
8.0 to <40.0MHz 0 to 50°C ±15ppm ±100ppm 40
10 to 60°C ±20ppm
20 to70°C
30 to 80°C ±25ppm
40 to 85°C ±30ppm
55 to 105°C ±100ppm ±500ppm
27.0 to 50.0MHz Inclusive with
Frequency Stability
0 to 50°C ±50ppm ±100ppm Fundamental
BT cut
10 to 60°C ±70ppm
20 to70°C ±100ppm
26.0 to 100.0MHz ±10ppm to 100ppm 0 to 50°C ±15ppm ±100ppm 100 3rd Overtone
AT cut
10 to 60°C ±20ppm
20 to70°C
30 to 80°C ±25ppm
40 to 85°C ±30ppm
55 to 105°C ±100ppm ±500ppm
Note: For other frequency / specification combinations, please contact our sales offices
IQD Frequency Products Ltd
Main
A
utomotive
Statek
Part Numbers for IQD HC49/4HSMX
Frequency Specification Part Number Packaging
Bulk Reel
3.57955MHz 30/50/-10 to 60C/16 FUND LFXTAL003058 ✓✓
3.6864MHz 30/50/-10 to 60C/16 FUND LFXTAL003260 ✓✓
4MHz 30/50/-10 to 60C/16 FUND LFXTAL003071 ✓✓
4MHz 30/50/-10 to 60C/30 FUND LFXTAL011300 ✓✓
4.9152MHz 30/50/-10 to 60C/16 FUND LFXTAL018153 ✓✓
4.9152MHz 30/50/-20 to 70C/18 FUND LFXTAL028392
5MHz 30/50/-10 to 60C/30 FUND LFXTAL012312 ✓✓
6MHz 30/50/-10 to 60C/30 FUND LFXTAL016788 ✓✓
6MHz 20/50/-10 to 60C/16 FUND LFXTAL026900 ✓✓
7.3728MHz 30/50/-10 to 60C/16 FUND LFXTAL003334 ✓✓
7.3728MHz 30/50/-10 to 60C/30 FUND LFXTAL010689 ✓✓
8MHz 30/50/-10 to 60C/16 FUND LFXTAL003151 ✓✓
8MHz 30/50/-10 to 60C/30 FUND LFXTAL011301 ✓✓
8MHz 30/50/-20 to 70C/18 FUND LFXTAL020423
8.192MHz 20/50/-10 to 60C/16 FUND LFXTAL026902 ✓✓
9.8304MHz 30/50/-10 to 60C/30 FUND LFXTAL017048
10MHz 30/50/-10 to 60C/30 FUND LFXTAL017145 ✓✓
10MHz 30/50/-20 to 70C/18 FUND LFXTAL021675
10MHz 30/50/-10 to 60C/16 FUND LFXTAL003166 ✓✓
11.0592MHz 30/50/-10 to 60C/16 FUND LFXTAL003519 ✓✓
12MHz 30/50/-10 to 60C/16 FUND LFXTAL003210
12MHz 30/50/-10 to 60C/30 FUND LFXTAL010043 ✓✓
14.7456MHz 20/50/-10 to 60C/16 FUND LFXTAL026908 ✓✓
14.7456MHz 30/50/-10 to 60C/30 FUND LFXTAL012313 ✓✓
16MHz 30/50/-10 to 60C/16 FUND LFXTAL003237 ✓✓
18.432MHz 20/50/-10 to 60C/16 FUND LFXTAL026911 ✓✓
20MHz 30/50/-10 to 60C/16 FUND LFXTAL003181 ✓✓
20MHz 30/50/-10 to 60C/30 FUND LFXTAL017146 ✓✓
20MHz 30/50/-20 to 70C/18 FUND LFXTAL020131
24MHz 30/50/-10 to 60C/16 FUND LFXTAL012504 ✓✓
24MHz 30/50/-20 to 70C/18 FUND LFXTAL026548
25MHz 30/50/-10 to 60C/16 FUND LFXTAL010595 ✓✓
25MHz 30/50/-20 to 70C/18 FUND LFXTAL033342
© IQD Frequency Products Ltd 2011
Registered in England no. 06478545 T: +44 (0) 1460 270 200
Registered Office : Sta ti on Road, Crewkerne, Somerset, TA18 8AR, UK
VAT Reg. no. GB932 4502 45
PN List
Flaydemouse Website De sign, Yeovil, Somerset
Pa
g
e 1 of 1IQD Part Numbers for HC49/4HSMX (Quartz Cr
y
stals SMD) Packa
g
e: 11.4 x 3.8mm...
6-12-2011http://www.iqdfrequenc
y
products.com/products/partnumbers/40
/
www.iqdfrequencyproducts.com 20
QUARTZ
CRYSTALS
SPECIFYING QUARTZ CRYSTALS
        

        

         
         

        

        
        

 
   
        





Frequency




Load Capacitance
Overtone

Frequency
        
        



          
          

16.66667.






Model



       

        
          







Frequency Tolerance



       
        

design.
Frequency Stability




        

         

       
          





       
      
        
       
         
           
         
         
        


can be accepted.
21 www.iqdfrequencyproducts.com
QUARTZ
CRYSTALS
Typical Frequency vs Temperature Curves
for various angles of AT-cut crystals
25
Temperature (°C)
50
0
+25
+100
+25 +70 20
f/f
0
(ppm)
Standard Frequency Tolerances and Stabilities
±5ppm
±10ppm
±15ppm
±20ppm
±30ppm
±50ppm
±100ppm
Operating Temperature Ranges








Load Condition



Overtone Order










          
       
    
intended frequency.
          



Additional Text Code



Packaging Codes
         


         

       
  
        
request



Outline Drawings




Marking

        

