Silicon-Power-Diode 5A, (U) 50V, blocking-diode. When adding LED rear tail light / turn signal combinations in addition to bulb original tail lights, it can happen that a small leakage current flows from the brake line, when the Rear light cable is connected or vice versa.
For example we have just had a supplementary LED rear light switch off when the brake light cables are connected.
To prevent this, a 5A blocking diode in series is connected to the brake light cable in a way that the current can flow to the new LED tail light but not back. The silver bar on the diode marks the direction to where the electricity can flow.
