uxcell 5-Pack JQC-3FF-S-Z 12V DC SPDT 5-Pin PCB Power Relay

Description

Product Overview

The uxcell JQC-3FF-S-Z 12V DC PCB electromagnetic power relay is engineered for precision control in a wide range of electronic and HVAC applications. Housed in a flame‑retardant polycarbonate (PC) enclosure, the relay offers excellent resistance to high temperatures and mechanical stress, ensuring long‑term reliability. Its five‑pin SPDT (single pole double throw) configuration provides a clear separation between the common, normally open, and normally closed contacts, simplifying wiring and reducing the chance of errors during installation. With a contact capacity of 15 A at 125 VAC and 10 A at 250 VAC, the relay can safely handle substantial loads while maintaining low internal resistance. The compact dimensions—approximately 19 × 15 × 19 mm—allow for dense board layouts, and the robust metal pins guarantee excellent conductivity and minimal heat buildup. Designed for both hobbyist projects and professional installations, this relay delivers consistent performance across lighting, motor control, furnace replacement, and other automation tasks.

Usage

Ideal for remote‑control systems, communication equipment, and aerospace‑grade control panels, this relay excels in environments where space is at a premium and reliability is critical. It is frequently used to switch lighting circuits, drive display lamps, and manage HVAC components such as fans, compressors, and thermostats. The relay’s 12 V DC coil voltage aligns with common control board power supplies, making it a seamless fit for microcontroller‑based projects, PLCs, and industrial control units. When multiple relays are placed in close proximity, a minimum spacing of 4 mm is recommended to prevent excessive heat accumulation, ensuring each unit operates within its optimal temperature range. Whether you are building a smart home lighting system, upgrading a furnace control board, or prototyping an automated test rig, the uxcell relay provides the versatility and durability required for demanding applications.

Why Choose Us

Choosing the uxcell JQC-3FF-S-Z relay means selecting a component that combines high‑quality materials with meticulous manufacturing standards. The PC housing is not only flame‑retardant but also resistant to deformation, protecting the internal contacts from mechanical shock and vibration. Each relay undergoes rigorous testing for contact resistance, coil inductance, and thermal performance, guaranteeing that it meets or exceeds industry specifications. Our commitment to quality is backed by responsive customer support and a clear warranty policy, giving you confidence that any issues will be addressed promptly. Additionally, the relay’s design minimizes heat generation, reducing the need for additional cooling solutions and extending the lifespan of both the relay and surrounding circuitry. By integrating this relay into your design, you benefit from a proven solution that reduces development time, lowers total cost of ownership, and enhances overall system reliability.

Key Features

• Compact 5‑pin SPDT layout for easy PCB integration and space‑saving designs.
• High contact rating of 15 A @ 125 VAC and 10 A @ 250 VAC for versatile load handling.
• Flame‑retardant PC housing provides superior thermal resistance and safety.
• Robust metal pins ensure excellent conductivity and low heat buildup.
• Dedicated after‑sales support and warranty for peace of mind.

FAQ

What is the recommended spacing when installing multiple relays together?

To avoid excessive heating, maintain at least a 4 mm gap between adjacent relays. This spacing allows adequate airflow and heat dissipation.

Can this relay be used with a 5 V control signal?

No. The coil is designed for a 12 V DC supply. Using a lower voltage may result in insufficient coil activation and unreliable switching.

Is the relay suitable for automotive applications?

While the relay can handle the voltage and current specifications, automotive environments often require additional protection against voltage spikes and vibration. Adding a suitable snubber circuit and mounting hardware is recommended.

How does the flame‑retardant PC material improve safety?

The PC material resists ignition and slows flame propagation, reducing the risk of fire in case of a short circuit or overload, which is especially important in HVAC and furnace installations.

What warranty does uxcell provide for this relay?

uxcell offers a standard one‑year warranty covering manufacturing defects. Contact our support team with the product serial number for assistance.