日蚀32.768KHZ音叉晶体的发展历程，默默前行的日蚀公司，始终坚持初心，将最好的品质贡献于世界各地，同时不断开发更多优质的使用石英晶体，伴随着电子行业的快速发展，对于日蚀而言也是新的机会，为了满足更大的市场需求，日蚀公司不断调整与优化自身的石英晶振产品，使得产品能够兼并出色的稳定性能以及高质量的特点，在品质方面的把控也超越寻常的严格，正是这些对品质极致的追求，才能够成就优秀的日蚀公司，并通过精进自我，提供创新能力不断扩宽自身的能力边界。
手表中使用的音叉晶体是石英晶体中的“经典”。它的频率总是正好为32.768kHz。但是为什么是这个值呢？
这个问题的答案可以在压电石英晶体的历史中找到。贝尔电话实验室是当今美国电话电报公司电信集团的前研究部门，是这一领域的先驱之一。最初，他们的研究重点是稳定无线电频率，但很快就清楚了石英晶体也可用于时间测量。1928年，美国人自豪地展示了世界上第一个石英钟。
音叉晶体树立了新的精度标准
在这一突破之前，所有的钟表都是纯机械运转的。通过安装石英晶体和使石英振荡的相应能量源，首次引入了电子元件。这确实奏效了:新款石英表的走时比纯机械手表精确得多。
但是石英晶体实际上实现了什么功能呢？简而言之，石英晶体确保手表“知道”一秒持续多长时间。这是通过产生恰好1赫兹的频率来实现的。赫兹是频率的常用测量单位。它表示周期信号中每秒重复过程的次数；在这种情况下，秒针在表盘上前进一个位置。
输出频率32.768kHz？
32.768赫兹音叉晶体的唯一标准频率来自哪里？要理解这一点，你必须知道石英晶体的频率取决于它的形状和大小。一个自然频率只有1赫兹的石英会如此之大，它更适合“大本钟”钟楼，而不是手表。显然，从生产和使用的角度来看，这是相当不切实际的，所以有一个特殊的技巧。
32.768kHz频率的手表晶体比较容易生产。内置于手表中，其原始频率使用所谓的T触发器或波纹计数器进行分割。每个T触发器可以将石英的频率减半。如果15个这样的触发器串联，32.768K晶振的输出频率正好等于1赫兹。因此，经典音叉晶体的频率最终是简单的算术运算和石英生产的一般条件的结果。
制造商零件编号
供应商
描述
工作温度
EB1216JA10-24.000M TR
Ecliptek晶振
CRYSTAL 24.0000MHZ 10PF SMD
-40°C ~ 85°C
EB1216JA10-24.576M TR
Ecliptek晶振
CRYSTAL 24.5760MHZ 10PF SMD
-40°C ~ 85°C
EB1216YA10-24.000M TR
Ecliptek晶振
CRYSTAL 24.0000MHZ 10PF SMD
-40°C ~ 85°C
EB1216YA10-24.576M TR
Ecliptek晶振
CRYSTAL 24.5760MHZ 10PF SMD
-40°C ~ 85°C
EB1620JA10-24.576M TR
Ecliptek晶振
CRYSTAL 24.5760MHZ 10PF SMD
-40°C ~ 85°C
EB1620JA10-25.000M TR
Ecliptek晶振
CRYSTAL 25.0000MHZ 10PF SMD
-40°C ~ 85°C
EB1216YA10-32.000M TR
Ecliptek Crystal
CRYSTAL 32.0000MHZ 10PF SMD
-40°C ~ 85°C
EB1620JA10-32.000M TR
Ecliptek晶振
CRYSTAL 32.0000MHZ 10PF SMD
-40°C ~ 85°C
EB1216YA10-27.120M TR
Ecliptek晶振
CRYSTAL 27.1200MHZ 10PF SMD
-40°C ~ 85°C
EA2025JA18-30.000M TR
Ecliptek晶振
CRYSTAL 30.0000MHZ 18PF SMD
-40°C ~ 85°C
EA2025SA10-32.000M TR
Ecliptek晶振
CRYSTAL 32.0000MHZ 10PF SMD
-40°C ~ 85°C
EB3250AYA08-8.000M TR
Ecliptek晶振
CRYSTAL 8.0000MHZ 8PF SMD
-40°C ~ 125°C
E1SJA18-6.000M TR
Ecliptek晶振
CRYSTAL 6.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-18.432M TR
Ecliptek晶振
CRYSTAL 18.4320MHZ 18PF SMD
-40°C ~ 85°C
E1SFA18-4.000M TR
Ecliptek晶振
CRYSTAL 4.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-14.31818M TR
Ecliptek晶振
CRYSTAL 14.31818MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-6.144M TR
Ecliptek晶振
CRYSTAL 6.1440MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-28.63636M TR
Ecliptek晶振
CRYSTAL 28.63636MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-13.000M TR
Ecliptek晶振
CRYSTAL 13.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-19.6608M TR
Ecliptek晶振
CRYSTAL 19.6608MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-9.8304M TR
Ecliptek晶振
CRYSTAL 9.8304MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-32.000M TR
Ecliptek晶振
CRYSTAL 32MHZ 18PF SMD
-
EA2025MA10-16.000M TR
Ecliptek晶振
CRYSTAL 16.0000MHZ 10PF SMD
-40°C ~ 85°C
EA2025MA10-32.000M TR
Ecliptek晶振
CRYSTAL 32.0000MHZ 10PF SMD
-40°C ~ 85°C
E1WCDA12-32.768K
Ecliptek晶振
CRYSTAL 32.7680KHZ 12.5PF TH
-10°C ~ 60°C
E1SJA18-18.000M TR
Ecliptek晶振
CRYSTAL 18.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-20.000M TR
Ecliptek晶振
CRYSTAL 20.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-14.7456M TR
Ecliptek晶振
CRYSTAL 14.7456MHZ 18PF SMD
-40°C ~ 85°C
E1SCA18-7.3728M TR
Ecliptek晶振
CRYSTAL 7.3728MHZ 18PF SMD
-40°C ~ 85°C
E1SEA18-16.000M TR
Ecliptek晶振
CRYSTAL 16.0000MHZ 18PF SMD
-20°C ~ 70°C
E1SEA18-12.000M TR
Ecliptek晶振
CRYSTAL 12.0000MHZ 18PF SMD
-20°C ~ 70°C
E1SJA18-10.000M TR
Ecliptek晶振
CRYSTAL 10.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-12.000M TR
Ecliptek晶振
CRYSTAL 12.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-11.0592M TR
Ecliptek晶振
CRYSTAL 11.0592MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-8.000M TR
Ecliptek晶振
CRYSTAL 8.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-16.000M TR
Ecliptek晶振
CRYSTAL 16.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-3.579545M TR
Ecliptek晶振
CRYSTAL 3.579545MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-4.194304M TR
Ecliptek晶振
CRYSTAL 4.194304MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-16.9344M TR
Ecliptek晶振
CRYSTAL 16.9344MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-5.000M TR
Ecliptek晶振
CRYSTAL 5.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-13.500M TR
Ecliptek晶振
CRYSTAL 13.5000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-9.216M TR
Ecliptek晶振
CRYSTAL 9.2160MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-12.288M TR
Ecliptek晶振
CRYSTAL 12.2880MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-4.500M TR
Ecliptek晶振
CRYSTAL 4.5000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-15.000M TR
Ecliptek晶振
CRYSTAL 15.0000MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-4.433619M TR
Ecliptek晶振
CRYSTAL 4.433619MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-16.384M TR
Ecliptek晶振
CRYSTAL 16.3840MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-6.7458M TR
Ecliptek晶振
CRYSTAL 6.7458MHZ 18PF SMD
-40°C ~ 85°C
E1SJA18-15.360M TR
Ecliptek晶振
CRYSTAL 15.3600MHZ 18PF SMD
-40°C ~ 85°C
E1SDA18-25.000M TR
Ecliptek晶振
CRYSTAL 25.0000MHZ 18PF SMD
0°C ~ 70°C
E1SJA18-4.9152M TR
Ecliptek晶振
CRYSTAL 4.9152MHZ 18PF SMD
-40°C ~ 85°C
E1SGA18-25.000M TR
Ecliptek晶振
CRYSTAL 25.0000MHZ 18PF SMD
0°C ~ 70°C
EA2532QA18-26.000M TR
Ecliptek晶振
CRYSTAL 26.0000MHZ 18PF SMD
-40°C ~ 85°C
EA2532QA18-20.000M TR
Ecliptek晶振
CRYSTAL 20.0000MHZ 18PF SMD
-40°C ~ 85°C
EA2532LA18-30.000M TR
Ecliptek晶振
CRYSTAL 30.0000MHZ 18PF SMD
-40°C ~ 85°C
EA2532QA18-13.560M TR
Ecliptek晶振
CRYSTAL 13.5600MHZ 18PF SMD
-40°C ~ 85°C
EB2532YA12-24.000M TR
Ecliptek晶振
CRYSTAL 24.0000MHZ 12PF SMD
-40°C ~ 125°C
EB1216JA10-26.000M TR
Ecliptek晶振
CRYSTAL 26.0000MHZ 10PF SMD
-40°C ~ 85°C
EB1620JA10-24.000M TR
Ecliptek晶振
CRYSTAL 24.0000MHZ 10PF SMD
-40°C ~ 85°C
EA2025JA18-16.000M TR
Ecliptek晶振
CRYSTAL 16.0000MHZ 18PF SMD
-40°C ~ 85°C
E1WSDA12-32.768K TR
Ecliptek晶振
CRYSTAL 32.7680KHZ 12.5PF SMD
-10°C ~ 60°C
EA2025JA18-32.000M TR
Ecliptek晶振
CRYSTAL 32.0000MHZ 18PF SMD
-40°C ~ 85°C
EA2025JA10-24.000M TR
Ecliptek晶振
CRYSTAL 24.0000MHZ 10PF SMD
-40°C ~ 85°C
EB3250JA12-10.000M TR
Ecliptek晶振
CRYSTAL 10.0000MHZ 12PF SMD
-40°C ~ 85°C
EB3250AYA08-16.000M TR
Ecliptek晶振
CRYSTAL 16.0000MHZ 8PF SMD
-40°C ~ 125°C
EB3250YA12-12.000M TR
Ecliptek晶振
CRYSTAL 12.0000MHZ 12PF SMD
-40°C ~ 125°C
EB3250AYA08-10.000M TR
Ecliptek晶振
CRYSTAL 10.0000MHZ 8PF SMD
-40°C ~ 125°C
E1SJA18-24.000M TR
Ecliptek晶振
CRYSTAL 24.0000MHZ 18PF SMD
-40°C ~ 85°C
EA2532LA18-25.000M TR
Ecliptek晶振
CRYSTAL 25.0000MHZ 18PF SMD
-40°C ~ 85°C
EA2532UA12-24.000M TR
Ecliptek晶振
CRYSTAL 24.0000MHZ 12PF SMD
-40°C ~ 85°C
EB2532JA12-30.000M TR
Ecliptek晶振
CRYSTAL 30.0000MHZ 12PF SMD
-40°C ~ 85°C
EB2532JA12-18.432M TR
Ecliptek晶振
CRYSTAL 18.4320MHZ 12PF SMD
-40°C ~ 85°C
EB2532YA12-18.432M TR
Ecliptek晶振
CRYSTAL 18.4320MHZ 12PF SMD
-40°C ~ 125°C
EB1216JA10-25.000M TR
Ecliptek晶振
CRYSTAL 25.0000MHZ 10PF SMD
-40°C ~ 85°C
EB1216JA10-32.000M TR
Ecliptek晶振
CRYSTAL 32.0000MHZ 10PF SMD
-40°C ~ 85°C
EB3250JA12-16.000M TR
Ecliptek晶振
CRYSTAL 16.0000MHZ 12PF SMD
-40°C ~ 85°C
EB3250YA12-16.000M TR
Ecliptek晶振
CRYSTAL 16.0000MHZ 12PF SMD
-40°C ~ 125°C
EB3250YA12-10.000M TR
Ecliptek晶振
CRYSTAL 10.0000MHZ 12PF SMD
-40°C ~ 125°C
EB3250YA12-24.000M TR
Ecliptek晶振
CRYSTAL 24.0000MHZ 12PF SMD
-40°C ~ 125°C
E3WSDC12-32.768K TR
Ecliptek晶振
CRYSTAL 32.7680KHZ 12PF SMD
-40°C ~ 85°C
面向大众市场的精确频率
几十年过去了，石英表才最终进入大众市场。1969年，日本精工公司在市场上推出了第一款商用石英手表。然而，46万日元的成本相当于一辆小型汽车。但是发展很快:到20世纪70年代中期，石英表已经比纯机械机芯的“传统”手表便宜。日蚀32.768KHZ音叉晶体的发展历程.
当时，Ecliptek晶振也抓住了这个机会，建立了自己的音叉晶体和其他频率控制产品的贸易和生产网络。自然，音叉晶体仍然今天投资组合的一部分。然而，Ecliptek也提供了一个各种振荡器音叉频率为32.768千赫。
watches is something like the “classic” among the quartz crystals. Its frequency is always exactly 32.768 kHz. But why this value?
The answer to this question can be found in the history of quartz crystals. Bell Telephone Laboratories, the former research department of today’s telecommunications group AT&T, is one of the pioneers in this field. Initially, their research focused on stabilizing radio frequencies, but it soon became clear that quartz crystals are also useful for time measurement. In 1928, the Americans proudly presented the world’s first quartz-controlled Clock.
Before this breakthrough, all clocks worked purely mechanical. By installing the quartz crystal and a corresponding energy source that makes the quartz oscillate, an electronic component was introduced for the first time. And it worked: The new quartz watch ran much more precisely than the purely mechanical competition.
But what function is actually fulfilled by the quartz crystal? Put simply, the quartz crystal ensures that the watch “knows” how long a second lasts. This is achieved by generating a frequency of exactly one Hertz. Hertz is the common unit of measurement for frequencies. It indicates the number of repetitive processes per second in a periodic signal; in this case the advancement of the second hand by one position on the clock-face.
Where does the unique standard frequency for a tuning fork crystal of 32.768 Hertz originate? To understand this, you must know that the frequency of a quartz crystal depends on its shape and size. A quartz with a natural frequency of only one Hertz would be so large, it would be more suitable for the “Big Ben” clock tower than for a wrist watch. Obviously, that would be rather impractical in terms of production and use so there’s a special trick.
Watch crystals with a frequency of 32.768 kHz are relatively easy to produce. Built into the watch, its original frequency is split using so-called T-flipflops or ripple counters. Each T-flip-flop can halve the frequency of the quartz. If 15 of these T-flipflops are connected in series, the output frequency of 32.768 kHz equals exactly one Hertz. Thus, the frequency of the classic Tuning fork crystal is ultimately the result of a simple arithmetic operation and the general conditions of quartz production.
Several decades passed before the quartz watch finally found its way into the mass market. In 1969, the Japanese company Seiko launched the first commercially available quartz wristwatch on the market. However, the cost of 460,000 Yen was equivalent to that of a small car. But development was rapid: By the mid 1970s, quartz watches were already cheaper than “conventional” watches with purely mechanical movements.
At that time, Ecliptek also seized the opportunity and built up its own trade- and production-network for tuning fork crystals and further frequency control products. Naturally, tuning fork crystals are still part of today’s portfolio. However, Ecliptek is also offering a wide range of oscillators with the tuning fork-frequency of 32.768kHz.
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