AT SC Cut Quartz Crystal Blanks Single Doubly Rotated With ZTC
Single and Doubly Rotated AT SC Cut Quartz Crystal Blanks with ZTC
Frequency versus temperature
Crystal frequency output as a function of temperature. Temperature stability is a specification calculated in fractions per billion. SC cut crystal can improve the performance of the oscillator. The main reason is the slope of the curve near the turning point of the crystal. In general, AT the same inflection point, the slope of the SC cut is 1/3 of the slope of the AT cut. Another advantage is that SC cuts are adapted to operate over a wider temperature zone.
Crystal aging
Crystal aging is an indicator of how the frequency of a crystal changes over its lifetime. Crystal aging is caused by impurities in the oscillator. The aging rate is also measured in parts per billion. SC cut crystal is not sensitive to some factors affecting aging, such as crystal installation stress, crystal plating stress, electronic product performance changes, etc., and has little impact on the supply chain.
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Orientation |
AT, SC, IT,…, etc |
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Angle Tolerance |
Theta Angle: ±5″, ±10″, ±15″, ±30″, ±1′, ±2′, …, etc. |
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Phi Angle: ±5′, ±10′, ±15′, ±30′, …, etc. |
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Size |
Round (3.0mm～8”)/ Square (1.6x1.6mm～48x48mm or larger)/ SMD (1.2x2.4mm Above) |
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Size Tolerance |
±0.01mm,+/-0.005mm, +/-0.0005mm, according to size |
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Frequency |
1 Mhz up to 54Mhz for AT-Cut Fundamental; Up to 70Mhz by Etching |
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Flat |
Per requested: the flat shall be perpendicular to X axis within ±10 deg |
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Surface |
#1000(9u); #2000(7u); #3000(5u); #4000(3u) (SiC); Polished(Cerium Oxide)& etched Std |
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Overtone |
Fundamental; Third Overtone (3rd); Fifth Overtone (5th) |
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Dioptric |
Plano-Convex: 0.5 dioptric～10 dioptric Bi-Convex: 10 dioptric～15 dioptric |
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Material |
Cultured Quartz Crystal |
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Q-Value |
Min 1.8x10^6, 2.4x10^6 to 3.0x10^6 IEC standards |
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ECD |
Max 2 /c㎡, 10/c㎡, Max 30/c㎡, Max 100/c㎡, Max 300/c㎡; Swept Quartz |
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Inclusions |
Ia, Ib, I, II, III Grades |
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Swept |
Z bar, Y bar, Or Swept quartz |
Acceptance Check
- The product is fragile. We have adequately packed it and labeled it fragile. We deliver through excellent domestic and international express companies to ensure transportation quality.
- After receiving the goods, please handle with care and check whether the outer carton is in good condition. Carefully open the outer carton and check whether the packing boxes are in alignment. Take a picture before you take them out.
- Please open the vacuum package in a clean room when the products are to be applied.
- If the products are found damaged during courier, please take a picture or record a video immediately. DO NOT take the damaged products out of the packaging box! Contact us immediately and we will solve the problem well.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.