SPXO units dominate crystal oscillator output

Global SourcesUpdated on 2023/12/01

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China makers offer SMD and DIP units in 0.5 to 800MHz.

Basic SPXO units still lead China's crystal oscillator production. These are mainly used as reference oscillators in communication equipment, measuring instruments and controllers, and as clock oscillators in computers, office automation and information terminal devices. There are also FCXO variants.

In the DIP segment, the common options include HC-49U, HC-33U, HC-49U/S, HC-49USMD, UM-1, UM-5, full-size or DIP-14, half-size or DIP-8, and tuning-fork units, with the HC-49 series forming the bulk of production.

Across SMD and DIP categories, the typical choices based on supply voltage and frequency range are 1.8, 2.5, 2.8, 3.3, 5 and 12V, and 0.5 to 800MHz. In terms of output, there are sine wave and clipped sine wave, and TTL, CMOS, PECL and LVDS versions.

The stable cost of materials and components will help manufacturers maintain prices for the rest of the year.

Here is a selection of SMD crystal oscillators from China:

SMD crystal resonator with 8 to 80MHz range

Hubei Dongguang Electronics Co. Ltd's SMD6035 model is an 8 to 80MHz crystal resonator with ±10 to ±30ppm tolerance. The aging rate is ±5ppm per year in 25 C.

The unit has ≥500Mohm insulation resistance at 100±15VDC. It measures 6x3.5x1mm and comes in tape and reel packaging.

The product is priced at $0.14. The minimum order is 1,000 units. Delivery takes 14 days.

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SMD TCXO crystal oscillator has ≤±0.5ppm frequency accuracy

Nedi Technology Co. Ltd's model WZB7024H SMD sine wave TCXO in 2Hz to 125MHz boasts ≤±0.5ppm accuracy, ±0.1 to ±0.5ppm stability, and ±5 to ±10ppm tuning range. It ages at ±1ppm per year.

The 27.43x17.78x5.88mm unit has 7dBm output amplitude, ≤-25dBc harmonic rejection, and -120dBc/100Hz, -140dBc/1kHz or -148dBc/10kHz phase noise. It supports 5V and ≤10mA supply voltage and current, 0, 2.5 or 5V tuning voltage, and 50ohm impedance. The operating and storage temperatures are -55 to 85 C and -55 to 100 C.

The minimum order quantity is 1,000 units for delivery within 60 days.

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SMD seam-sealed clock oscillator for automotive use

The 2N model from Shenzhen Crystal Technology Industrial Co. Ltd is a 2520 SMD seam-sealed clock oscillator for automotive applications. It has a frequency range of 4 to 54MHz, and operates in -40 to 85 C.

The unit comes in 1.8, 2.5, 2.8, 3 and 3.3V versions. It complies with RoHS guidelines. A version with tri-state function is available.

The maker accepts a minimum order of 3,000 units. Delivery takes 30 days.

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26MHz SMD crystal oscillator has CMOS output form

The SOC5032-26.000M-50-3.3V-F model from Strong Electronics & Technology Ltd is a 26MHz crystal oscillator with ±50ppm maximum stability. It has CMOS output form, with 45 to 55 percent symmetry at 50 percent maximum supply voltage.

The RoHS-compliant unit supports 15pF load. It has a ceramic base and metal housing. The operating temperature is -40 to 125 C. Dimensions are 5x3.2mm.

The model goes for $0.45. The minimum order is 1,000 units with a delivery lead time of 10 days.

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SMD crystal resonator in 12 to 80MHz

Tongfang Guoxin Electronics Co. Ltd's SMD3225 (JYD3) model is a 12 to 80MHz crystal resonator with ≤±10ppm tolerance and ±1 to 3ppm aging per year. Its maximum drive level is 200µW.

The 3225 seam-sealed unit has 6 to 50pF load capacitance. It meets RoHS.

The minimum order is 1,000 units, and delivery is within 21 days.

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SPXO units dominate crystal oscillator output

SMD crystal resonator with 8 to 80MHz range

SMD TCXO crystal oscillator has ≤±0.5ppm frequency accuracy

SMD seam-sealed clock oscillator for automotive use

26MHz SMD crystal oscillator has CMOS output form

SMD crystal resonator in 12 to 80MHz

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