Andrew
Andrew Content Marketer
On Jul 16, 2025

782090 – Compact General Purpose Relay by WJ Relay for Versatile Switching

The General Purpose Relays 782090 by WJ Relay deliver reliable and efficient switching in various industrial, commercial, and electronic control systems. Designed for high electrical endurance and fast operation, this relay ensures consistent performance in automation, HVAC, lighting, and control panels.

In this blog, we’ll cover its key specifications, features, application areas, usage guidelines, and how to download the datasheet or purchase from Xon Electronics.


Technical Specifications of 782090

  • Manufacturer: WJ Relay

  • Part Number: 782090

  • Type: General Purpose Relay

  • Coil Voltage: 12V DC

  • Contact Configuration: SPDT (Single Pole Double Throw)

  • Contact Rating: 10A @ 250VAC / 10A @ 30VDC

  • Mounting Type: Through-Hole

  • Dielectric Strength: 4000V RMS

  • Operating Temperature Range: -40°C to +85°C

  • Category: Relays, 782090 General Purpose Relays by WJ Relay

Built for versatility and long-term use, the 782090 General Purpose Relays by WJ Relay are ideal for systems where dependable load control is required.


Key Features of 782090

  • SPDT Switching Format – Enables flexible control for AC and DC loads

  • High Current Capacity (10A) – Suitable for medium-duty switching tasks

  • Compact Through-Hole Design – Perfect for dense PCB layouts

  • Reliable Coil Response – Fast and accurate operation with low power draw

  • Electrical Isolation – Coil-to-contact isolation enhances system safety

These features make the 782090 General Purpose Relays by WJ Relay ideal for use in automated systems, signal switching, and power management modules.


Applications of 782090 Relay

  • HVAC Controllers and Thermostats

  • Home and Industrial Automation

  • Lighting Circuits and Timers

  • Security Systems

  • Smart Power Distribution Boards

From building automation to consumer appliances, the 782090 General Purpose Relays by WJ Relay enable safe and consistent switching in compact, modular designs.


Mounting and Usage Instructions

To integrate the 782090 relay into your design:

[Step 1] Solder the through-hole pins into a compatible PCB layout
[Step 2] Connect the coil terminals to a 12V DC control signal
[Step 3] Wire the load through the common (COM), normally open (NO), and normally closed (NC) pins
[Step 4] Ensure proper spacing and ventilation for thermal protection
[Step 5] Test with your control logic to confirm reliable switching

With simple integration steps and robust performance, the 782090 General Purpose Relays by WJ Relay support smooth system operation in diverse conditions.


Use Case Scenario – HVAC Fan Control System

Scenario: A facilities engineer required a durable and compact relay to control 240V AC fans in a programmable HVAC system.

Problem: Previous relays failed under extended load or thermal cycling.

Solution: The 782090 General Purpose Relays by WJ Relay offered reliable 10A switching with superior isolation and electrical endurance.

Result: Long-term operation, minimal downtime, and higher system efficiency.

This real-world example illustrates the dependable functionality of 782090 General Purpose Relays by WJ Relay.


Download Datasheet for 782090

Looking for electrical curves, pin configurations, or switching characteristics?

[Download 782090 Datasheet from Xon Electronics]


Why Buy from Xon Electronics?

Xon Electronics offers genuine 782090 General Purpose Relays by WJ Relay with:

  • 100% Verified WJ Relay Components
  • Fast Global Shipping – USA, India, Australia, Europe & more
  • Ready-to-Ship Inventory
  • Technical Support for Control Circuit Designers
  • Secure Checkout and Easy Online Ordering

Shop now at www.xonelec.com and keep your control systems running smoothly with trusted WJ Relay products.


Conclusion

The 782090 General Purpose Relays by WJ Relay combine reliability, performance, and ease of integration. With a robust 10A contact rating, compact form factor, and SPDT switching, these relays are a dependable choice for engineers across automation, HVAC, and electronics industries. Choose 782090 General Purpose Relays by WJ Relay—available globally from Xon Electronics.


FAQs – 782090 WJ Relay

Q1. What is the coil voltage for this relay?
12V DC.

Q2. What load can the contacts handle?
10A @ 250VAC or 10A @ 30VDC.

Q3. What type of switching configuration is used?
SPDT (Single Pole Double Throw).

Q4. Can I use it in HVAC or lighting systems?
Yes, it is ideal for both.

Q5. Is it available worldwide?
Yes, order from www.xonelec.com with shipping to USA, India, Australia, Europe, and more.




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