Reviews extensive data on both environmental testing and lifetesting (greater than one-million device hours of biased aging) ofthermoelectric coolers (TECs) and discusses the dominant failure modespossible during a typical 20-year lifetime. Results indicate that theproper procurement, packaging, and screening of TECs can provide failurerates much less than the 1300 FITs quoted by Bellcore. The overallreliability of standard 18 couple TECs installed in the Astrotec LaserModule are found to be 359 FITs at 10 years, assuming a 40° CTHOT and a 20° C ΔT. The random failure rate is 140FITs at 60% confidence limit based on laboratory aging data alone
展开▼
机译：审查有关环境测试和寿命的大量数据
测试（超过100万个设备小时的有偏向老化）
热电冷却器（TEC）并讨论了主要的故障模式
在典型的20年使用寿命中可能实现。结果表明
TEC的正确采购，包装和检查可能会导致故障
利率远低于Bellcore引用的1300 FIT。整体
Astrotec Laser中安装的标准18对TEC的可靠性
假设温度为40°C，则10年后的模块数为359 FIT
T HOT 和20°CΔT。随机故障率为140
仅根据实验室老化数据就可将FIT的置信度限制为60％
展开▼
