I don't have enough context to fully understand what "smd-115" refers to, as it could potentially be an identifier for various things across different fields or industries. However, I can provide some general insights based on common interpretations:

1. SMD (Surface-Mount Device) -115: In electronics, SMD refers to electronic components that are mounted directly onto the surface of printed circuit boards (PCBs) instead of being wired through holes (through-hole technology). The "-115" could refer to a specific type or model number of an SMD component, such as a resistor, capacitor, inductor, diode, transistor, etc.

2. Standard Military Drawing (or Specification) -115: In the defense and aerospace industries, SMD can also stand for "Standard Military Drawing," which refers to a set of specifications for components used in military applications. The number 115 might denote a particular drawing or specification within this system.

3. Other Industry-Specific Terminology: Depending on the field, "-115" could be part of an internal code or product identifier used by a company or organization.

If you're looking for more specific information about "SMD-115", providing additional context would be very helpful. For example:

- Are you referring to an electronic component?

- Is it related to military or aerospace standards?

- Is it part of a larger product or system identifier?

With more details, I can offer a more precise explanation or guide you towards the right resources.