The JQC-3FF-S-Z 12V relay is a compact, PCB-mounted electromagnetic switch manufactured by Tongling Electric Appliances Co., Ltd. It's designed to control high-power devices using low-power signals, making it suitable for various applications in electronics and automotive industries.

Key Features:

1. Contact Capacity: Capable of switching currents up to 10A at 250VAC or 15A at 125VAC, accommodating a wide range of devices.
2. Compact Dimensions: Measuring 19.2mm in length, 15.4mm in width, and 15.4mm in height, it fits easily onto standard PCBs.
3. Coil Specifications: Operates on a 12V DC coil voltage with a coil resistance of 400Ω, ensuring efficient performance.
4. Contact Configuration: Features a single-pole double-throw (SPDT) configuration, providing both normally open (NO) and normally closed (NC) contacts.
5. Durability: Rated for 100,000 electrical operations and 10,000,000 mechanical operations, ensuring long-term reliability.

Electrical Characteristics:

1. Insulation Resistance: Minimum of 100MΩ at 500VDC, ensuring minimal leakage and high reliability.
2. Dielectric Strength: Withstands 750VAC between open contacts and 1500VAC between coil and contacts for one minute, ensuring safety and performance.
3. Operate and Release Time: Typical operate time of 10ms and release time of 5ms, facilitating quick switching operations.

Applications:

The JQC-3FF-S-Z 12V relay is versatile and commonly used in:

1. Automotive Systems: Controlling lights, motors, and other electronic components.
2. Home Appliances: Managing operations of devices like air conditioners, washing machines, and microwave ovens.
3. Industrial Equipment: Employed in control panels and automation systems for switching purposes.
4. Consumer Electronics: Used in power supplies and various electronic circuits for efficient control.

Mounting and Pin Configuration:

Designed for PCB mounting, the relay has a 5-pin configuration:

1. Coil Pins (2): For energizing the electromagnetic coil.
2. Common (COM) Pin (1): The movable contact point.
3. Normally Open (NO) Pin (1): Open when the relay is de-energized; closes upon activation.
4. Normally Closed (NC) Pin (1): Closed when the relay is de-energized; opens upon activation.