Fuji Crystal

Home

About Fuji Crystal



Company

News

Quartz crystal

Release time:

2025-06-26 11:17

FCX-6R Quartz Crystal with Built-in Thermistor (2.0×1.6mm)

Key Features

Ultra-small SMD package: 2.0 × 1.6 × 0.65 mm
Integrated thermistor for temperature sensing
Frequency range: 19.2 ~ 54 MHz
Frequency tolerance: ±10 ppm @ 25°C ±3°C
Frequency stability: ±12 ppm over −30°C to +85°C
Load capacitance: 6 / 7 / 8 pF or custom-specified
Drive level: 10 ~ 100 µW
ESR: Max. 100 Ω (19.2~30 MHz), 80 Ω (30~54 MHz)
Thermistor resistance: 22–100 kΩ @ 25°C
Thermistor B-constant: 3380–4250 K @ 25–50°C
Storage temperature: −40°C to +125°C
Aging: ±3 ppm/year (1st year)
RoHS and REACH compliant, Pb-free

Applications

Mobile phones
GPS/GNSS positioning modules
Wearable electronics
Smart sensor nodes with thermal calibration

Electrical Specifications

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Nominal Frequency	F	19.2	–	54	MHz	@25°C, RH 40%~70%
Frequency Tolerance	FT	–	±10	–	ppm	@ 25°C ±3°C
Frequency Stability	ST	–	±12	–	ppm	−30°C to +85°C
Operating Temperature	Topr	−30	25	+85	°C	–
Load Capacitance	CL	6	–	8	pF	Or specify
Drive Level	DL	10	–	100	µW	–
ESR (19.2–30 MHz)	–	–	–	100	Ω	Max
ESR (30–54 MHz)	–	–	–	80	Ω	Max
Thermistor Resistance	–	22	–	100	kΩ	@ 25°C
B-constant	–	3380	–	4250	K	@ 25~50°C
Storage Temperature	Tstr	−40	–	+125	°C	–
Aging (1st year)	–	–	±3	–	ppm/year	@ 25°C

FCX-6R Quartz Crystal with Built-in Thermistor (2.0×1.6mm)

Key Features

Ultra-small SMD package: 2.0 × 1.6 × 0.65 mm
Integrated thermistor for temperature sensing
Frequency range: 19.2 ~ 54 MHz
Frequency tolerance: ±10 ppm @ 25°C ±3°C
Frequency stability: ±12 ppm over −30°C to +85°C
Load capacitance: 6 / 7 / 8 pF or custom-specified
Drive level: 10 ~ 100 µW
ESR: Max. 100 Ω (19.2~30 MHz), 80 Ω (30~54 MHz)
Thermistor resistance: 22–100 kΩ @ 25°C
Thermistor B-constant: 3380–4250 K @ 25–50°C
Storage temperature: −40°C to +125°C
Aging: ±3 ppm/year (1st year)
RoHS and REACH compliant, Pb-free

Applications

Mobile phones
GPS/GNSS positioning modules
Wearable electronics
Smart sensor nodes with thermal calibration

Electrical Specifications

Parameter	Symbol	Min	Typ	Max	Unit	Conditions
Nominal Frequency	F	19.2	–	54	MHz	@25°C, RH 40%~70%
Frequency Tolerance	FT	–	±10	–	ppm	@ 25°C ±3°C
Frequency Stability	ST	–	±12	–	ppm	−30°C to +85°C
Operating Temperature	Topr	−30	25	+85	°C	–
Load Capacitance	CL	6	–	8	pF	Or specify
Drive Level	DL	10	–	100	µW	–
ESR (19.2–30 MHz)	–	–	–	100	Ω	Max
ESR (30–54 MHz)	–	–	–	80	Ω	Max
Thermistor Resistance	–	22	–	100	kΩ	@ 25°C
B-constant	–	3380	–	4250	K	@ 25~50°C
Storage Temperature	Tstr	−40	–	+125	°C	–
Aging (1st year)	–	–	±3	–	ppm/year	@ 25°C

Quartz crystal embodies nature's perfect marriage of geometric precision and metaphysical wonder, its hexagonal prisms terminating in pyramidal points forming with a mathematical regularity that seems almost too perfect to be unguided. These translucent to transparent crystals, ranging from water-clear rock crystal to amethyst's regal purple and citrine's sun-kissed gold, grow through an exquisite geological ballet where silicon and oxygen atoms arrange themselves in a continuous spiral pattern under conditions of intense heat and pressure. The crystal's piezoelectric properties – its ability to generate electrical charge under mechanical stress – make it indispensable in modern technology, yet its allure extends far beyond utility into realms of spiritual symbolism and aesthetic fascination.

The formation process reveals quartz's extraordinary resilience. Originating in hydrothermal veins and pegmatite pockets deep within Earth's crust, these crystals develop over millennia as mineral-rich waters deposit silica molecules layer upon layer at temperatures between 200-300°C. What emerges are often stunning clusters of terminated points, some microscopic and others stretching several meters, their surfaces etched with striations marking incremental growth. The variety of inclusions – phantom growth patterns, rutile needles, or gaseous bubbles – serve as geological diaries recording the crystal's turbulent journey to the surface through volcanic activity or tectonic uplift. This durability explains quartz's abundance; it constitutes nearly 12% of Earth's crust, weathering erosional forces that destroy lesser minerals while retaining its structural integrity.

Key words:

application

Fcom

Automotive Electronics

Fire-fighting

Quartz Crystal

OCXO