The 1N967B is a high-reliability, discrete solid-state Zener diode specifically engineered for highly precise voltage regulation and circuit protection. Operating with a nominal 18V Zener voltage and a 0.5W (500mW) power handling capability, this axial-leaded semiconductor is a staple component for bench technicians, engineers, and electronics hobbyists alike.

Housed in a compact, industry-standard DO-35 package, this through-hole component features robust wire leads designed for secure, direct soldering onto circuit boards. Its physical design consists of a tiny, rugged glass bead molded directly around the silicon chip, protecting the internal semiconductor layer from environmental moisture and atmospheric degradation without changing its solid-state footprint.

The 1N967B behaves like a standard diode under normal operating conditions, allowing current to flow in one direction. However, once the reverse voltage reaches its critical 18V threshold, the diode safely breaks down to conduct current backward. This unique breakdown property maintains a fixed, stable 18V output, making it highly effective at clamping voltage spikes and providing a clean voltage reference.

Whether you are performing a vintage restoration on a solid-state radio, building a custom power supply, stabilizing an audio amplifier stage, or adding over-voltage protection to sensitive logic gates, the 1N967B delivers dependable, long-term performance. Its wide operating temperature range and tight 5% voltage tolerance ensure circuit stability even under shifting thermal conditions.