The TRACO Power TEL 15-4811WIN is a compact, isolated DC/DC converter designed for industrial, instrumentation, and avionics-type electronic systems. It converts a wide DC input voltage into a regulated low-voltage DC output, typically used to power sensitive electronics in aircraft and embedded systems.

It belongs to the TEL 15WIN series, known for high power density and robust electrical isolation in a very small DIP-16 metal package.

Its primary features include:
15W isolated DC/DC converter module
Wide input voltage range: 18–75 VDC (4:1 range) 
Typical output: 5.1 VDC at up to 2.94 A 
High efficiency up to ~86–87% 
Electrical isolation up to ~1.5–1.8 kV
Ultra-compact DIP-16 metal package
Operating temperature range: approx. -40°C to +85°C
Short-circuit and overload protection
Designed for PCB mounting (through-hole)

This module is commonly used in avionics, industrial control systems, and communication equipment where a stable, isolated low-voltage supply is needed from a higher aircraft or industrial bus voltage (such as 24V or 48V systems).