Data Sheet

QANTEK Technology Corporation
Phone: [phone] (tollfree) www.qantek.com
Fax: [phone] (tollfree) [e-mail]
QC3CA Series
2.5x3.2 4-Pad SMD All Ceramic Crystal Unit
Features
• All ceramic epoxy sealed SMD package
• Low in height, suitable for thin equipment
• Tight tolerance and stability available
Mechanical Dimensions
Applications
• High density applications
• Modem, communication and test equipment
Frequency Stability vs. Temperature
Operating Temperature ±20ppm ±30ppm ±50ppm
-20 to +70°C
  
-40 to +85°C
  
 standard  available
General Specifications
Frequency Range 12.000 to 48.000MHz (Fundamental)
Frenquency Tolerance at 25°C ±20 to ±50ppm (±30ppm standard)
Frequency Stability over Temperature Range See Stability vs. Temperature Table
Storage Temperature -55 to +125°C
Aging per Year ±5ppm max.
Load Capacitance C
L
10 to 32pF and Series Resonance
Shunt Capacitance C
0
7.0pF max.
Equivalent Series Resistance (ESR) See ESR Table
Drive Level 100μW typ. (500μW max)
Insulation Resistance (MΩ) 500 at 100Vdc ±15Vdc
Equivalent Series Resistance (ESR)
Frequency Range - MHz Ω max. Mode of Operation
12.000 to 16.000 120 Fundamental
16.000 to 25.000 60 Fundamental
25.000 to 30.000 50 Fundamental
30.000 to 48.000 35 Fundamental
QC3CA Rev. 0.2
Part Numbering Guide
Qantek
Code
Package
Nominal Frequency
(in MHz)
Vibration
Mode
Load Capacitance
Operating Temperature
Range
Frequency
Tolerance
Frequency
Stability
Packaging
Q = Qantek C3CA = 2.5x3.2
= 4-Pad SMD
7 digits including the
decimal point
(f.ie. 12.0000)
F = AT-Fund S = Series
12 = 12pF
18 = 18pF
20 = 20pF etc.
A = -20 to +70°C
B = -40 to +85°C
2 = ±20ppm
3 = ±30ppm
5 = ±50ppm
2 = ±20ppm
3 = ±30ppm
5 = ±50ppm
M = 250pcs Tape&Reel
R = 1000pcs Tape&Reel
R3 = 3000pcs Tape&Reel
Example: QC3CA12.0000F12B33R bold letters = recommended standard specification