High Frequency Fundamental (HFF) Inverted Mesa Quartz Blanks

AT-Cut HFF Quartz blanks

Roditi is proud to market Xeco's extensive range of high frequency fundamental (HFF) inverted mesa crystal blanks, demanded by so many of today's leading crystal and oscillator manufacturers.

HFF Inverted Mesa Blanks are manufactured from swept, pure Z growth quartz wafers using a photolithographic process and available in many shapes and forms to accommodate today's various packing styles from the mature HC range to the more recent ceramics SMD package.

Xeco's continuous R&D commitment now affords us a frequency range from the low 14MHz to 700 MHz on the fundamental, with most common angles between 35° 8’ and 35° 29 ’

This commitment has focused progress on the plated blank, which offer:

  • significant process savings
  • improved motional control (resulting in lower spurs)
  • immediate yield growth
  • reduced time to market

Current HFF electroded blanks are available in:

  • Chrome
  • Gold Chrome
  • Aluminium
  • Aluminium with Gold contacts

Specifications and Datasheets

Mesa Series Style Inverted mesa crystal blanks dimensions Application; common packages or mount Frequency Range
RZ126* 3.2 mm x 1.83 mm 5 mm x 7 mm SMD
3.2 x 5.0 mm SMD
UM-1 - HC-45		 70 - 1300 MHz Request Quote
RM126 3.2 mm x 1.83 mm 5 mm x 7 mm SMD
3.2 x 5.0 mm SMD
UM-1 - HC-45		 70-700MHz Request Quote
RM138 3.5 mm x 1.83 mm 3.2 x 5.0 mm SMD
 70-700MHz Request Quote
RX150 3.81 mm x 2.83 mm 3.5 x 6.0 mm SMD 30-350 MHz Request Quote
RM196 4.98mm x 2.39 mm 5 x7 mm SMD 30-550MHz Request Quote
RS196 4.98mm x 2.39 mm 5 x7 mm SMD 100-700MHz Request Quote
SM141 3.58mm x 3.58mm
(5.08 across diagonal)

0.200" or 5.08mm 2-point or 4-point clip mounts.
UM-1, HC_45 or larger packages

 30-350MHz Request Quote
CM200 5.08 mm round 0.200" or 5.08mm 2-point, 3-point, or 4-point clip mounts
UM-1, HC_45, Large SMD or larger packages		 30-200 MHz Request Quote
SM156 3.96 mm x 3.96 mm (5.58mm across diagonal)

0.220" or 5.58mm 2-point or 4-point clip mounts
UM-1, HC_45, Large SMD or larger packages

 30-200MHz Request Quote
CM220 5.58 mm round 0.220" or 5.58mm 2-point, 3-point, or 4-point clip mounts
UM-1, HC_45, Large SMD or larger packages		 30-200MHz Request Quote