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hc49u

hc49u datasheet

This part is a miniature AT cut stirp crystal units with HC49U Qua miniature BASE. It is mainly used in mobile ,

wifi, bluetooth and telecommunications application.

1mhz crystal oscillator.jpg

HC49U  part also support to 3rd overtone type.

Electrical Performance. Electrical characteristics measured by S&A250B.

No.ItemSymb.Electrical SpecificationRemark (Humidity: 40%~60%)
Min.TypeMax.Unit
1Nominal FrequencyF01.826000MHz-
2Mode of vibration-Fundamental--
3Frequency toleranceΔF/F0-30-30ppm25℃±3℃
4Operating Temperature RangeTOPR-10-60-
5Frequency StabilityTc-50-50ppm-10~60℃
6Storage TemperatureTstg-55-125-
7Load CapacitanceCL-16-pF-
8Equivalent Series ResistanceESR--500Ω25℃±3℃
9Drive LevelDL--100µW-
10Insulation ResistanceIR500--Mohm@DC100V
11Shunt CapacitanceC0--7pF25℃±3℃
12Motional CapacitanceC1---fF25℃±3℃
13Trim SensitvityTs---ppm/pF25℃±3℃
14SpuriousSPDB---dB-
15AgingAging-5-5ppmFirst Year

HC49U Product Dimensions (Unit:mm)

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A11.50MAX
B10.30MAX
C4.88±0.2
D0.45±0.05
E13.2±1
F3.80MAX
G4.70MAX
H13.6MAX

Precautions for storag

Storage of crystal units under higher temperature or high humidity for a long term may affects frequency stability or solderability.Please store the crystal units 

under the normal temperature and humidity without exposing to direct sunlight and dew condensation,and avoid the storage of crystal units for more than 6 months,

and mount them as soon as possible after unpacking.e

HC49U in SMD type