FTR-F3AA012E is a 12V DC slim-type power relay from the FTR-F3 Series, featuring a single form A (SPST-NO) contact configuration with AgNi contact material. The relay operates at a rated coil voltage of 12V DC with 720O coil resistance and 200mW rated power, delivering a must-operate voltage of 9V and must-release voltage of 1.2V. It provides a contact rating of 3A at 125VAC/30VDC (standard type) or 5A at 250VAC/30VDC (HA variant), with maximum carrying current of 5A and maximum switching power of 750VA/90W (standard) or 1,250VA/150W (HA). The relay features high insulation with 4kV dielectric strength and 10kV surge strength, a minimum 6mm insulation distance between coil and contact, and operates reliably over -40°C to +70°C. With its compact 7mm width and 142mm² mounting space, cadmium-free AgNi contacts, plastic sealed RTIII construction, and compliance with UL, CSA, VDE, and CQC safety standards, this relay is ideal for high-density mounting applications in industrial control, automation, and switching circuits requiring reliable performance and eco-friendly design.