RM126 Datasheet, PDF (1/2 Pages) List of Unclassifed Manufacturers – Low Cost Inverted Mesa Crystals Blanks 50 - 700 MHz for 5 x7 mm SMD & UM-1/HC45

RM126
Low Cost Inverted Mesa Crystals Blanks
50 - 700 MHz for 5 x7 mm SMD & UM-1/HC45
XECO's RM126 series offers 50 to 700 MHz operation (measured in fundamental mode) and is designed to fit in 5x7mm
packages and provide a cost effective solution to high volume high frequency production. The RM126 will fit into modified
clip UM-1 and HC45 style packages. XECO proprietary processes yield a clean mesa and transition area to achieve high
performance, and XECO plating assures accurate electrode placement for maximizing performance at high frequencies.
This series offers standard round electrodes from 5 to 45 mils and special shapes are possible using XECO proprietary plating
process which provides excellent alignment accuracy. Standard plating processes for oscillator are chrome-gold, or Aluminum
with gold contacts to assure good bond with mounting adhesives, or 100% Aluminum.
These crystals blanks are also supplied with Gold, Aluminum, or Aluminum electrodes with gold flags/contacts. Special or
custom designs are supported.
Features
Benefits:
Stable oscillation
3.20 mm x 1.83 mm size for mounting across typical 5 x
7mm package crystal mounts
Various Electrodes sizes for frequency and C1/C0 ratios
Tune Low and Tune High options
High Q, chemically etched, free of etch channels or scratches
in the Mesa area
Accurate placement of electrodes
Excellent oscillator performance
Easy conversion to 5x7mm package
High Frequency Operation is available
Lower cost
Applications
Small packaged crystals for precise frequency control
applications
Customer applications for SONET, 10G, 1G, Storage,
network communications
Operation Mode
Fundamental or Overtone
Frequency Range
50 to 700 MHz
Frequency Range 3Rd: 150 to 2.10 GHz
Frequency Tolerance +/- 0.010 F^2 (489KHz at 156.25)
Material and Q
Low Etch Channel Pure Z Quartz with a
Q minimum of 1.8 Million
Surface Finish
Polished
Angle
Std AT cut 35D8' to 35D29' [EFG 3D6' t
Angle Tolerance
+/- 2', +/-1',+/-0.5'
Dimensions (mm)
3.20 x 1.83 x 0.109 mm
Dimensions (inches) 0.126 x 0.071 x 0.00429"
Electrode Size
0.125mm to 1.15 mm, 5 mils to 45 mils
Electrode Style
Contacts at opposite ends or same end
Electrode Material Chrome Gold or Aluminum
Electrode Freq. Tol.: +/- 0.015 F^2 (4
Contact Material:
Same as Electrode material or Chrome-Gold with Aluminum
Ship Pack Method Vacuum sealed wafflepack
Specification Note
Custom or special requirements available
*Xeco standard plateback or per customer requirements
For more information, sales and technical support:
9101 W. Sahara Ave Suite 105-E10, Las Vegas, NV.
89117 Phone: [phone]
Fax: 702-920-
8405
Email: [e-mail]