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Crystal resonators

Crystal resonators

Apart from our finished quartz frequency control products, we manufacture a wide range of crystals of various designs for frequencies ranging from 4 kHz to 200 MHz. For these crystals we employ quartz elements manufactured along the most commonly used cuts. Onyx Crystals offers the crystals in standard HC-52, HC-49 and HC-33 packages.

Please refer to the following table:

Crystal type	Package type	Frequency range (overtone)	Frequency tolerance, x10^-6	Motional resistance, Ohm
QR-OC-379	HC-49	420....550 kHz (1)	±30	< 3000
QR-OC-379	НС-49, HC49-SMD	4000... 45000 kHz (1) 20 ...90 MHz (3) 60 ...200 MHz (5)	±3...±30	20...100
	НС-52, HC52-SMD	5000 ...45000 kHz (1) 20...140 MHz (3) 60 ...200 MHz (5)	±3...±30	30...150
	НС-33	750...8000 kHz (1)	±10...±20	30...600
	НС-33	1000...8000 kHz (1)	±10...±20	30...600
QR-OC-432	НС-49/S	10000...25000 kHz (1)	±15...±50	< 25

For frequency tolerance specification, please refer the following table:

Frequency accuracy, x10^-6	±0,5	±1	±3	±5	±10	±15	±20	±30	±50	±75	±100
Designation	1	2	3	4	5	6	7	8	9	10	11

For frequency stability versus operating temperature changes specification, please refer the following table:

Temperature range,°С

±1.5

±2

±3

±5

±7.5

±10

±15

±20

±25

±30

±40

±50

-10... 60

-30... 60

-40... 70

-60... 85

75... 85

65... 75

55... 65

A - available
NA - not available
C - consult factory.

Ordering guide: QR-OC-379-HC-49-SMD-5AI-38.4625M, where:

QR-OC-379: crystal type;
HC-49-SMD: package type (HC-49, HC-49-SMD, HC-52, HC-52-SMD, HC-49/S, HC-33);
5: designation of frequency tolerance;
A: designation of temperature range;
I: designation of frequency stability vs. temperature range;
38.4625M: designation of output frequency.