Initial failures are often caused by manufacturing defects.
The initial failure rate of this device is very low.
偶発故障 refers to random failures occurring during the normal operating period, whereas 初期故障 refers to failures early in the product's life.
磨耗故障 refers to wear-out failures at the end of a product's life, in contrast to 初期故障 which occurs at the beginning.
Compound of 初期 (early stage) and 故障 (failure, breakdown).