XECO RM126 Technical data

Low Cost Inverted Mesa Crystals Blanks

RM126

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

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

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 Tolerance

+/- 0.010 F^2 (489KHz at 156.25)

Electrode Size

0.125mm to 1.15 mm, 5 mils to 45 mils

Electrode Style

Contacts at opposite ends or same end

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'

Specification Note

Custom or special requirements available

Dimensions (mm)

3.20 x 1.83 x 0.109 mm

Dimensions (inches)

0.126 x 0.071 x 0.00429"

Ship Pack Method

Vacuum sealed wafflepack

*Xeco standard plateback or per customer requirements

Contact Material:

Same as Electrode material or Chrome-Gold with Aluminum

Frequency Range 3Rd:

150 to 2.10 GHz

Electrode Material

Chrome Gold or Aluminum

Benefits:

Excellent oscillator performance
Easy conversion to 5x7mm package
High Frequency Operation is available
Lower cost

Electrode Freq. Tol.:

+/- 0.015 F^2

(

4

9101 W. Sahara Ave Suite 105-E10, Las Vegas, NV.
89117 Phone: [phone] Fax: 702-920­8405 Email: [e-mail]

For more information, sales and technical support:

查询RM126供应商

Low Cost Inverted Mesa Crystals Blanks

RM126

50 - 700 MHz for 5 x7 mm SMD & UM-1/HC45

Device Dimensions

+0.000 -0.025

mm

+0.000 -0.025
+0.025 -0.025
+0.025 -0.025
+0.001 -0.001
+0.003 -0.003
+0.001 -0.001
+0.001 -0.001

X 1.829
Z 3.200

MX

1.524

MZ

1.524

ma 0.533
mb 0.762
mc
md

m:

tx 0.152

t: 0.838

m: NA

arcS NA

+0.002 -0.002
+0.013 -0.013
+0.013 -0.013

NA
NA

Tolerancesmm

+0.00 -1.00

Inches

+0.00 -1.00
+1.00 -1.00
+1.00 -1.00

+0.05 -0.05
+0.10 -0.10
+0.05 -0.05
+0.05 -0.05
+0.08 -0.08

+0.5 -0.5
+0.5 -0.5

NA
NA

Tolerancesmils (0.001")

72.00

126.00

60.00

60.00

21.00

30.00

6.00

33.00
NA
NA

X

Z
MX
MZ

ma
mb
mc
md

m:

tx

t:

m:

arcS

9101 W. Sahara Ave Suite 105-E10, Las Vegas, NV.
89117 Phone: [phone] Fax: 702-920­8405 Email: [e-mail]

For more information, sales and technical support: