供应高精密电阻研发 盛雷城精密电阻 供应高精密电阻

精密电路中选择采样电阻时的首要考虑因素应该是精密电阻器的稳定性，因为现在的精密仪表中的ic都具有自校准功能，所以采样电阻的精度已经不是首要考虑的因素了，而如果采样电阻稳定性不高，自校准后，采样电阻偏移就会导致自校准功能失去意义，仪表也就偏离了其精度要求。

the 1st important point of sample resistor selection is the stability instead of tolerance, since the tolerance could drift out of spec if the precision resistors are not stable!

--- precision resistor has been --- ultra precision resistors with ultra high stability&reliability.

电子电路中，电阻器主要采用色环标示法，因为所用的电阻器功率多为1/8w 1/16w，体积很小。盛雷城精密电阻生产的普通电阻采用四环表示法，精密电阻采用了五环表示法，每条色环表示了不同的含义，一二三条分别为三位有效数字，第四条为倍率，第五条为允许偏差也就是我们通常所说的电阻的精度。黑、棕、红、橙、黄、绿、蓝、紫、灰、白十种颜色分别表示了0~9的十个数字，方便识别阻值及精度。

盛雷城精密电阻有限公司有严格的管理系统，拥有---的生产加工设备，制造的精密电阻和精密电阻精密可达万分之一，温度系数可低至1ppm, 公司经营方式灵活多元化，产品品种多，稳定，品质，享誉并远销欧美、印度、巴西、俄罗斯等国，20多年来，盛雷城精密电阻注重信誉、看重长远，---、价格优惠，服务一yiliu流，得到了广大用户的---并成为长久的合作伙伴。

--- precision resistor co.,ltd. has stirct requirements in our quality management system, we have advanced manufacture equipments.professional production of precision resistor&ultra high precision resistors,whosetol can reach 0.01%&tcr can reach 1ppm, our company diversified&flexible mode of operation, product variety, stable quality, excellent quality, famous in domestic market&exported to europe&the united states, india, brazil, russia etc. over 20 years, --- focus on long-term cooperation, pay attention to credibility, quality assurance, preferential prices, first-class service, the majority of users have been recognized&become a long-term partner.