The BZX55C56-TR from Vishay General Semiconductor - Diodes Division is a 56 V, 500 mW ±5% Zener diode for through-hole mounting, in a DO-35 (DO-204AH) package.
The BZX55C56-TAP from Vishay General Semiconductor - Diodes Division is a 56 V, 500 mW ±5% Zener diode for through-hole mounting, in a DO-35 (DO-204AH) package.