1N5737B [Microchip]

These are axial-leaded 500 mW Zener diodes in a hermetically sealed DO-35 (DO-204AH) glass package. They provide voltage regulation from 4.7V to 75V with standard ±5% tolerance (B suffix) or tighter ±2% (C suffix) and ±1% (D suffix) options. Features include internal metallurgical bond option (-1 suffix), MIL-PRF-19500 screening options, surface mount equivalents (UR suffix), and DO-7 glass body equivalents. They are non-sensitive to ESD, have minimal capacitance, and are inherently radiation hard. The devices offer flexible axial-lead mounting and operate over a broad temperature range.