Instructions:

1. Mounting: Ensure the diode is mounted with adequate heat dissipation if operating near maximum power.
2. Polarity: Connect the cathode (shorter lead or marked end) to the positive side of the circuit and the anode to the negative side.
3. Voltage Regulation: The diode should be used in circuits where the input voltage exceeds the Zener voltage (12V) to ensure proper regulation.
4. Current Limiting: Use a current-limiting resistor to prevent exceeding the maximum Zener current (5mA).
5. Temperature Considerations: Avoid operating the diode at temperatures outside the specified range (-65°C to +150°C).
6. Storage: Store in a dry, cool place to prevent damage.
7. Handling: Handle with care to avoid mechanical stress which can affect performance.