Extreme High Temperature Crystal Units

Xsis Electronics offers high reliability crystal units for extremely high temperature applications. These crystal units are designed and processed by Xsis Electronics to operate over an extended temperature range of -55°C to 230°C. High temperature materials and proven processes are utilized to provide high reliability and long life at extreme temperatures.

High Temperature Crystal Units manufactured by Xsis Electronics are designed for applications such as, Down Hole Drilling Measurements, Jet Engine Sensors, High Temperature Avionics, High Temperature coupled with High Shock & Vibration.

Exceptionally good frequency aging characteristics are achieved by the use of precision quartz crystals manufactured using in-house proprietary processes developed and improved over 45+ years of experience in manufacturing crystals for M55310 (QPL) oscillators for Military and space applications. All crystals are tested 100% over the operating temperature range.

HIGH TEMPERATURE CRYSTAL UNITS

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Type Number	Oscillation Mode	Frequency Range	Operating Temperature	Package Outline
XRH7x - 1	Fundamental	14.0 MHz - 40.0 MHz	Up To 230°C+	5 x 7 mm 4 Leads/Pads
XRH7x - 3	3rd Overtone	40.0 MHz - 150.0 MHz
XRH7x - 5	5th Overtone	75.0 MHz - 200.0 MHz
XRH4x - 1	Fundamental	14.0 MHz - 40.0 MHz	Up To 230°C+	7 x 9 mm 4 Leads
XRH4x - 3	3rd Overtone	40.0 MHz - 150.0 MHz
XRH4x - 5	5th Overtone	75.0 MHz - 200.0 MHz
XRH35x - 1	Fundamental	6.4 MHz - 40.0 MHz	Up To 230°C+	Cold Welded TO-5 Package 4 Pins
XRH35x - 3	3rd Overtone	40.0 MHz - 150.0 MHz
XRH35x - 5	5th Overtone	75.0 MHz - 200.0 MHz
XRH49x - 1	Fundamental	2.9 MHz - 30.0 MHz	Up To 230°C+	HC49/U and HC50/U Package 2 Pins
XRH49x - 3	3rd Overtone	15.0 MHz - 90.0 MHz
XRH49x - 5	5th Overtone	40.0 MHz - 150.0 MHz
XRH49SH - 1	Fundamental	5.0 MHz - 30.0 MHz	Up To 230°C+	HC49/US Low Profile Package 2 Pins
XRH49SH - 3	3rd Overtone	25.0 MHz - 90.0 MHz	Up To 230°C+	HC49/US Low Profile Package 2 Pins
XRH52x - 1	Fundamental	6.4 MHz - 30.0 MHz	Up To 230°C+	HC52/U Package 2 Pins
XRH52x - 3	3rd Overtone	25.0 MHz - 90.0 MHz
XRH52x - 5	5th Overtone	40.0 MHz - 150.0 MHz