Product Overview

The RY-24W-K is a miniature relay from Fujitsu’s RY series, designed for signal switching applications with a 2-pole (DPDT) contact configuration and ultra-high sensitivity. Featuring a plastic-sealed housing and DIL pitch terminals, it operates across a wide temperature range and meets international safety standards, ideal for industrial control, smart home, and security systems.

Key Features

Ultra-High Sensitivity: Nominal power of 200mW with an operate voltage ≤16.8VDC and release voltage ≥1.2VDC, suitable for low-voltage and battery-powered applications.
Global Safety Certifications: UL and CSA approved, compliant with FCC regulations, and surge strength of 1500V for safe and reliable operation.
Wide Operating Range: Functions from -30°C to +90°C (non-condensing), supporting 24VDC nominal voltage for compatibility with diverse power systems.
Reliable Contact Design: Bifurcated contacts ensure low initial resistance (≤100mΩ), with a mechanical life of ≥2×10⁷ operations and electrical life of ≥2×10⁵ operations at 1A 24VDC.
Eco-Friendly & Compact: RoHS compliant (lead-free, cadmium-free), weighing only 5g for space-saving, high-density PCB mounting.

Technical Specifications

Item	Parameters
Model	RY-24W-K
Contact Configuration	2 Form C (DPDT, Double Pole Double Throw)
Contact Material	Gold-overlay silver-palladium (lead-free, eco-friendly)
Contact Style	Bifurcated
Initial Contact Resistance	Max 100mΩ (at 1A 6VDC)
Rated Load (Resistive)	1A 24VDC / 0.5A 120VAC
Max Carrying Current	1.25A
Max Switching Power	60VA (AC) / 24W (DC)
Coil Parameters	Nominal voltage 24VDC, coil resistance 2880Ω (±10%), nominal power 200mW
Operation Characteristics	Operate voltage ≤16.8VDC, release voltage ≥1.2VDC; operate time ≤6ms, release time ≤3ms
Operating Temperature	-30°C to +90°C (non-condensing)
Insulation Performance	Insulation resistance ≥1000MΩ (500VDC); dielectric strength 500VAC (1min) between contacts, 1000VAC (1min) between coil and contacts
Vibration/Shock Resistance	Vibration: 10-55Hz (1.5mm double amplitude); Shock: 1000m/s² (6±1ms)
Life	Mechanical: ≥2×10⁷ operations; Electrical (1A 24VDC): ≥2×10⁵ operations
Package & Weight	Plastic-sealed, approx. 5g

Typical Applications

Industrial Automation Control: Acts as a signal relay in PLCs and sensor interfaces, ensuring stable signal transmission in harsh environments with its wide temperature tolerance and high sensitivity.
Smart Home Systems: Integrated into smart switches and home appliances, its low power consumption and compact design suit battery-powered devices for energy-efficient, space-saving control.
Security & Alarm Systems: Used in access control and detection devices, the sealed housing resists dust and moisture, providing reliable operation for long-term security applications.
Communication & Electronics: Suitable for routers and modems, compliant with FCC EMI standards to minimize signal interference and enhance equipment stability.
Medical Equipment: Handles low-load signals in portable medical devices, with lead-free contacts and high reliability meeting strict safety requirements.

Why Choose RY-24W-K？

Exceptional Sensitivity: 200mW low power and 16.8VDC low operate voltage optimize energy use for battery systems and low-voltage applications.
Certified Safety: UL, CSA, and FCC compliance ensures global safety standards, with 1500V surge protection for robust circuit security.
Wide Environmental Tolerance: Operates from -30°C to +90°C, making it suitable for extreme industrial, outdoor, or high-temperature scenarios.
Long-Lasting Performance: Over 20 million mechanical operations and 200,000 electrical operations reduce maintenance needs and downtime.
Eco-Design & Easy Integration: RoHS compliant and lightweight (5g), with DIL pitch terminals for standard PCB mounting, speeding up development and integration.

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RY-24W-K