ADW1205HTW Panasonic Latching Relay

Description

The ADW1205HTW is a Panasonic latching relay designed for low power consumption and space-saving in control circuits. It retains its contact position even after the control power is removed. Ideal for smart meters, industrial equipment, and energy-saving applications.

Technical Information

• Model: ADW1205HTW
• Relay Type: 1-Coil Latching Relay
• Contact Configuration: 1 Form A (SPST-NO)
• Coil Voltage: 5V DC
• Contact Rating: 5A at 250V AC / 30V DC
• Coil Resistance: 62Ω
• Operate Time: ≤ 10 ms
• Release Time: ≤ 10 ms
• Dielectric Strength: 4,000 VAC (coil to contact)
• Insulation Resistance: ≥1,000 MΩ at 500V DC
• Surge Withstand Voltage: 10,000V
• Ambient Temperature: -40°C to +85°C
• Mounting Type: Through Hole
• Size: Compact and low-profile package

What is a Latching Relay?

A latching relay is an electromechanical switch that maintains its contact state (open or closed) even after the control signal is removed. It requires power only during switching, not for holding the state. This makes it highly energy-efficient for memory-based switching operations.

Key Features

• 1-coil latching mechanism
• Compact and energy-efficient
• 5A switching capacity
• High dielectric strength (4,000VAC)
• Excellent surge resistance (up to 10kV)
• Low-profile, PCB mountable design
• RoHS compliant

Benefits

The ADW1205HTW offers exceptional energy efficiency by using power only during state changes, not to maintain the contact position. It is ideal for systems that require memory switching with minimal power usage, such as smart grids and metering systems. Its compact size and high insulation ensure performance in space-constrained and high-voltage environments.

Key Benefits:

• Saves energy with latching mechanism
• Ideal for battery-operated and smart devices
• Compact design for small PCBs
• Reliable operation under electrical stress
• Long operational life

Applications

• Smart meters
• Industrial control systems
• Home automation
• Energy management systems
• Lighting controls
• Grid and load management

How to Use ?

To operate the ADW1205HTW, connect it to a PCB using the through-hole terminals. Apply a pulse of control voltage (5V DC) to switch the contact state. A reverse pulse returns the relay to its original state. Since it’s a latching type, no continuous power is needed to maintain the switched position, making it suitable for energy-sensitive applications.

Cautions

• Do not apply continuous voltage to the coil
• Avoid incorrect polarity while pulsing the coil
• Ensure clean and proper soldering on the PCB
• Operate within the rated temperature and voltage
• Protect from dust, moisture, and mechanical stress
• Allow adequate spacing for heat dissipation

Why You Should Buy

The Panasonic ADW1205HTW latching relay is perfect for modern applications that demand energy efficiency and reliable performance. Its ability to retain switching status without continuous power makes it cost-effective, especially for battery-powered and smart metering systems. With high insulation and compact size, it offers long-term reliability.

Where and Who Uses It

• Where: Smart meters, automation systems, industrial controllers, home energy devices
• Who: Engineers, product designers, OEMs, control panel manufacturers

About the Manufacturer

Panasonic is a global leader in innovative electronic components, offering a wide range of reliable, high-performance relays for industrial and consumer applications. Known for quality, safety, and durability, Panasonic continues to set standards in electronic design with energy-efficient solutions like the ADW1205HTW latching relay.