12V Relay AC5NSDC12V / AC5N S DC12V / AC5NSDC12V — 12VDC 5A 4‑Pin (10PCS) Key benefits Reliable lowvoltage switching: provides dependable on/off control for 12V DC control circuits with a rated contact capacity of 5A. Compact and repeatable: standardized 4‑pin configuration simplifies installation and replacement across multiple projects. Value pack for projects or repairs: included set of 10 relays ensures consistency across systems and reduces downtime for maintenance. What this relay does and why you need it Acts as an electrically controlled switch: the relay's 12V DC coil allows a small control signal to switch a highercurrent circuit (up to 5A), isolating sensitive control electronics from the switched load. Solves common problems like protecting microcontrollers from load currents, enabling remote switching of accessories, and replacing worn or failed relays with an exactfit model. Key attributes Model: AC5NSDC12V (also listed as AC5N S DC12V, AC5NSDC12V) Coil voltage: DC 12V Contact rating: 5A (suitable for loads within this current limit) Pin count: 4‑pin package for straightforward mounting and wiring Pack size: 10 pieces per Performance and compatibility Designed for 12V DC control systems and devices that require a compact relay with a 5A contact rating. Compatible with common 12V automotive, hobbyist and industrial control applications when used within specified ratings. Use appropriate drive circuitry (driver transistor, MOSFET, or relay driver IC) and protection (flyback diode across the coil, fuses for switched circuits) as required by your application. Typical applications Automotive accessory switching: control lights, horns, small pumps, or other 12V accessories within the 5A limit. DIY and prototyping: replacement relays for control boards, hobby robotics, and home automation modules. Low‑power industrial and security systems: switching sensors, alarm outputs, or control circuits where a compact 4‑pin relay is required. Installation tips Verify coil supply is a stable 12V DC and rated contact current does not exceed 5A. Provide a flyback diode or equivalent suppression across the coil to protect driving electronics. Use appropriate fusing on the switched circuit to protect wiring and loads. This pack of 10 AC5N‑S‑DC12V relays offers a practical, costeffective solution for consistent 12V switching in , prototyping, and smallscale production environments.