3.3mH, Inductor, Coil, Choke, 1.5A 300V, Dual 2 Line, W31

The RN112-1.5/02 is a current-compensated common-mode choke from Schaffner. It is designed to suppress electromagnetic interference (EMI) in power lines, typically used in switch-mode power supplies (SMPS) and other electronic equipment to reduce noise.

Core Specifications The model number breaks down into key technical parameters:
Inductance: 3.3 mH per line (at 10 kHz)
Current Rating: 1.5 A (Maximum)
Voltage Rating: Up to 300 VAC
DC Resistance (DCR): ~102 mΩ (Typ) to 135 mΩ (Max)
Configuration: Dual choke (2 lines)
Physical Dimensions & Mounting This component is a through-hole PCB mount device with a horizontal orientation.
Length: 17.7 mm Width: 17.1 mm Height: 12.6 mm to 12.9 mm Pin Configuration: 4-pin PC terminal