Comtec Crystals GmbHComtec Crystals GmbH
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i.gif (807 Byte)Product Categories:
Quartz Crystal Units Standard Quartz Crystal Oscillators
Quartz Crystal Units SMD Quartz Crystal Oscillators SMD
Low Frequency Quartz Crystal Units Monolithic Crystal Filters (MCF)
Ceramic Resonators Accessories
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Return to Product Overview Quartz Standard             info    HC49U     info           Click Here to see generic Data Sheet

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Return to product overview quartz standard
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Info auf Deutsch

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Info en francais


Information
The quartz units listed can be delivered immediately from our stock.   Frequently employed types are also stocked in larger amounts and available for immediate delivery.  Quartz units made to your specifications are also available through our company.

Extended Temperature Range 
Quartz units with an extended temperature range (from -40°C to 85°C and up to 125°C) are also available.

Stability
We can deliver units with an exactness of 10 ppm.

Taping
All quartz units are also available with paper taping.
One reel in paper tape = 1000 pcs. Delivery time 6-8 weeks.

Grounding
All quartzes can be delivered with a ground lead. Delivery time is 4-6 weeks. Soldering to the case, for example to attach a ground lead, should not be attempted, as this can destroy the quartz.  Instead, the HC49UG should be used.

Plastic Sleeve

Quantities of 1000 pcs or more can be delivered with a plastic sleeve for casing insulation.
The products available immediately from our stock are marked in the stock lists with co.

Accessories

For example, Insulators, see Accessories.

Price
Prices are quantity-dependent.  Please  Contact  us.

Contact

If you have any questions, please Contact  us.

Reflow Soldering Conditions
Diagram showing the temperature limits for the quartz during soldering.

Specifications (Example)   Q 4.000000 MHz HC49U fun/30/50/10/70/30

Q Quartz

SE

series
4.000000 MHz Frequency

co

with plastic cover
HC49U Case, Metal

sp

shock proof
fun   /   3OT Mode Fundamental  /    3. Overtone

cut

wires cut
30 30ppm  Frequency  Stability  at +25° C

cl

with clip
50/10/70 50ppm Temperature Stability from  -10°C to +70°C    
50/40/85 50ppm Temperature Stability from  -40°C to +85°C    
30 CL=Load Capacitance in pF, here 30pF    
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Homepage von ComtecE-Mail an Comtecproductsordercontact Comtec


Comtec Crystals GmbH
Sultenstrasse 12-14 · 85586 Poing · Germany
Tel: +49-8121-77 81 60 · Fax: +49-8121-77 81 77
E-Mail: info@comtec-crystals.com


Comtec Crystals SARL
23, rue du Faucon · 67500 Haguenau · France
Tel: +33 3.88.73.21.62 · Fax: +33 3.88.73.01.18
E-Mail: sales@comtec-crystals.com

Web: http://www.comtec-crystals.com