本规范涵盖了主要用于表面安装和混合电路应用的未建立可靠性（非ER）、已建立可靠性（ER）和空间级固定薄膜片式电阻器的一般要求。这些电阻器在正常条件下相对于时间具有高度稳定性。本规范涵盖的ER电阻器的寿命故障率（FR）范围为每1000小时1%至0.001%（见1.2.7）。这些FR是在寿命测试的基础上以60%的置信度建立的。 表I提供了这些电阻器的性能特性摘要。设计师应注意在高功率脉冲应用中使用这些电阻器（见6.7）。

This specification covers the general requirements for nonestablished reliability (non-ER), established reliability (ER), and space level, fixed, film, chip resistors primarily intended for incorporation into surface mount and hybrid circuit applications. These resistors have a high degree of stability with respect to time under normal conditions. ER resistors covered by this specification have life failure rates (FR) ranging from 1 percent to 0.001 percent per 1,000 hours (see 1.2.7). These FRs are established at 60 percent confidence on the basis of life tests. Table I provides a summary of performance characteristics for these resistors. Designers are CAUTIONED on using these resistors in high power pulses applications (see 6.7).