黑电阻是模压电阻器的俗称，模压电阻就是用热固化酚醛树脂经过高温高压，用模压机进行包封的，由于模压包封材料多采用黑色的树脂，所以的封装颜色是黑色的。

这种黑色树脂高温高压封装的EE系列与 RN 系列高稳定高精度电阻器，是盛雷城精密电阻有限公司与1989年前往欧洲学习和引进的，按照引进的市场工艺与材料规定，这些电阻使用的必须是德国赫斯特96%含铝量的高铝瓷棒，现在很多模仿生产的企业偷工减料，改用普通瓷棒，电阻的性能大打折扣，稳定性指标无法 保证。一味贪图便宜用户势必为此付出巨大的代价。

Black resistors are so called resistors with resistance layers are covered by a protective coating and hard bakelite designed for

electrical, mechanical and climatic protection.

EE series and RN series mold type resistors were all introduced by Thunder Precision Resistors Co., Ltd. In 1989 from Europe. They are all high precision resistors with established reliability and stability as well as tighten tolerance about 0.025%

盛雷城精密电阻有限公司又传捷报！ 经过盛雷城精密电阻有限公司全体员工的共同努力，盛雷城精密电阻有限公司在2017年5月份的销售收入比2016年同期增长超过 50%！ 这一切都有赖于市场部员工的努力开拓，工程部的高新技术产品不断开发和推出，生产部与品管部全体员工一起努力，努力创造出满足用户使用需求的产品！

为感谢和激励盛雷城精密电阻有限公司全体员工的努力工作与优异成绩，盛雷城精密电阻有限公司端午节的过节费比去年加倍发放！

thunder precision resistor Co., Ltd. has achieved excellent progress both in High-tech new precision resistors, high precision resistor networks as well as high power current sensing resistors and extra-large current shunts and in revenues in the past month in 2017

RJ系列金属膜电阻，是常见的电阻之一，RJS 系列小型化电阻和超小型化电阻使用进口原料和高铝瓷，在引进欧洲先进生产工艺的严格指导下进行生产制作，这类电阻具有精度高，稳定性好的特点，广泛地应用于所有对于产品的可靠性和稳定性能有要求的电器和仪器仪表中，几乎全国的数字万用表生产厂家都使用盛雷城精密电阻的RJ系列精密金属膜电阻器,其中包括美国FLUKE公司在中国生产的FLUKE17和FLUKE19以及日本SANWA公司在中国生产的万用表。

RJ series metal film resistor is one of the most common resistor, RJS series of small size resistor and mini size resistor use  high-quality imported raw materials and high alumina production,which manufactured under strict guidance in Europe advanced production technology. This type of resistors are with high precision and good stability, widely used in 

weighting scale manufacturers as well as test instrument manufacturers all over the world. As a matter of fact,

almost all of the DMM manufacturers in China have been using our high precision and ultra low TCR resistors, include famous FLUKE and SANWA.