ALZ52B12 is a sealed, low-profile power relay manufactured by Panasonic with a compact height of 15.7 mm and dimensions of 28.8 (L) × 12.5 (W) × 15.7 (H) mm. It features a 1 Form C contact arrangement with a nominal coil voltage of 12V DC, nominal operating current of 33.3 mA, and coil resistance of 360O, consuming only 400 mW of operating power. The relay provides a nominal switching capacity of 16A at 250V AC with AgSnO contact material, maximum switching voltage of 440V AC, and superior insulation characteristics including a 10 kV surge breakdown voltage between contacts and coil. It operates reliably in ambient temperatures from -40°C to +85°C (Class B insulation) with high insulation resistance (minimum 1,000 MO at 500V DC) and is approved by UL, C-UL, and VDE standards. This sealed relay is ideal for industrial control applications, home appliances, and equipment requiring compact, reliable switching with low power consumption and excellent environmental protection.