Raycom offers a wide selection of MIL-STD-1553 interface transformers for commercial, military, and space applications. Generally, these transformers are used for highest-reliability applications, such as flight-control, combat, and space. All QPL MIL-STD-1553 transformers are specified using DSCC MIL-PRF-21038/27. There are 31 different QPL parts listed on this low-power pulse transformer performance specification sheet. Shown below are two example product data bulletins that are QPL parts.